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net/socket.c
84.6 KB
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/* * NET An implementation of the SOCKET network access protocol. * * Version: @(#)socket.c 1.1.93 18/02/95 * * Authors: Orest Zborowski, <obz@Kodak.COM> |
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* Ross Biro |
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * * Fixes: * Anonymous : NOTSOCK/BADF cleanup. Error fix in * shutdown() * Alan Cox : verify_area() fixes * Alan Cox : Removed DDI * Jonathan Kamens : SOCK_DGRAM reconnect bug * Alan Cox : Moved a load of checks to the very * top level. * Alan Cox : Move address structures to/from user * mode above the protocol layers. * Rob Janssen : Allow 0 length sends. * Alan Cox : Asynchronous I/O support (cribbed from the * tty drivers). * Niibe Yutaka : Asynchronous I/O for writes (4.4BSD style) * Jeff Uphoff : Made max number of sockets command-line * configurable. * Matti Aarnio : Made the number of sockets dynamic, * to be allocated when needed, and mr. * Uphoff's max is used as max to be * allowed to allocate. * Linus : Argh. removed all the socket allocation * altogether: it's in the inode now. * Alan Cox : Made sock_alloc()/sock_release() public * for NetROM and future kernel nfsd type * stuff. * Alan Cox : sendmsg/recvmsg basics. * Tom Dyas : Export net symbols. * Marcin Dalecki : Fixed problems with CONFIG_NET="n". * Alan Cox : Added thread locking to sys_* calls * for sockets. May have errors at the * moment. * Kevin Buhr : Fixed the dumb errors in the above. * Andi Kleen : Some small cleanups, optimizations, * and fixed a copy_from_user() bug. * Tigran Aivazian : sys_send(args) calls sys_sendto(args, NULL, 0) |
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* Tigran Aivazian : Made listen(2) backlog sanity checks |
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* protocol-independent * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * * This module is effectively the top level interface to the BSD socket |
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* paradigm. |
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* * Based upon Swansea University Computer Society NET3.039 */ |
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#include <linux/mm.h> |
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#include <linux/socket.h> #include <linux/file.h> #include <linux/net.h> #include <linux/interrupt.h> |
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#include <linux/thread_info.h> |
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#include <linux/rcupdate.h> |
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#include <linux/netdevice.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> |
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#include <linux/mutex.h> |
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#include <linux/if_bridge.h> |
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#include <linux/if_frad.h> #include <linux/if_vlan.h> |
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#include <linux/ptp_classify.h> |
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#include <linux/init.h> #include <linux/poll.h> #include <linux/cache.h> #include <linux/module.h> #include <linux/highmem.h> |
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#include <linux/mount.h> #include <linux/security.h> #include <linux/syscalls.h> #include <linux/compat.h> #include <linux/kmod.h> |
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#include <linux/audit.h> |
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#include <linux/wireless.h> |
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#include <linux/nsproxy.h> |
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#include <linux/magic.h> |
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#include <linux/slab.h> |
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#include <linux/xattr.h> |
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#include <linux/nospec.h> |
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|
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#include <linux/uaccess.h> |
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#include <asm/unistd.h> #include <net/compat.h> |
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#include <net/wext.h> |
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#include <net/cls_cgroup.h> |
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#include <net/sock.h> #include <linux/netfilter.h> |
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#include <linux/if_tun.h> #include <linux/ipv6_route.h> #include <linux/route.h> |
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#include <linux/sockios.h> |
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#include <net/busy_poll.h> |
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#include <linux/errqueue.h> |
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|
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#ifdef CONFIG_NET_RX_BUSY_POLL |
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unsigned int sysctl_net_busy_read __read_mostly; unsigned int sysctl_net_busy_poll __read_mostly; |
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#endif |
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|
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static ssize_t sock_read_iter(struct kiocb *iocb, struct iov_iter *to); static ssize_t sock_write_iter(struct kiocb *iocb, struct iov_iter *from); |
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static int sock_mmap(struct file *file, struct vm_area_struct *vma); |
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static int sock_close(struct inode *inode, struct file *file); |
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static __poll_t sock_poll(struct file *file, struct poll_table_struct *wait); |
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static long sock_ioctl(struct file *file, unsigned int cmd, unsigned long arg); |
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#ifdef CONFIG_COMPAT static long compat_sock_ioctl(struct file *file, |
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unsigned int cmd, unsigned long arg); |
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#endif |
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static int sock_fasync(int fd, struct file *filp, int on); |
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static ssize_t sock_sendpage(struct file *file, struct page *page, int offset, size_t size, loff_t *ppos, int more); |
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static ssize_t sock_splice_read(struct file *file, loff_t *ppos, |
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struct pipe_inode_info *pipe, size_t len, |
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unsigned int flags); |
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|
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/* * Socket files have a set of 'special' operations as well as the generic file ones. These don't appear * in the operation structures but are done directly via the socketcall() multiplexor. */ |
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static const struct file_operations socket_file_ops = { |
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.owner = THIS_MODULE, .llseek = no_llseek, |
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.read_iter = sock_read_iter, .write_iter = sock_write_iter, |
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.poll = sock_poll, .unlocked_ioctl = sock_ioctl, |
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#ifdef CONFIG_COMPAT .compat_ioctl = compat_sock_ioctl, #endif |
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.mmap = sock_mmap, |
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.release = sock_close, .fasync = sock_fasync, |
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.sendpage = sock_sendpage, .splice_write = generic_splice_sendpage, |
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.splice_read = sock_splice_read, |
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}; /* * The protocol list. Each protocol is registered in here. */ |
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static DEFINE_SPINLOCK(net_family_lock); |
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static const struct net_proto_family __rcu *net_families[NPROTO] __read_mostly; |
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|
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/* |
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* Support routines. * Move socket addresses back and forth across the kernel/user * divide and look after the messy bits. |
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*/ |
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/** * move_addr_to_kernel - copy a socket address into kernel space * @uaddr: Address in user space * @kaddr: Address in kernel space * @ulen: Length in user space * * The address is copied into kernel space. If the provided address is * too long an error code of -EINVAL is returned. If the copy gives * invalid addresses -EFAULT is returned. On a success 0 is returned. */ |
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int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr) |
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{ |
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if (ulen < 0 || ulen > sizeof(struct sockaddr_storage)) |
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return -EINVAL; |
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if (ulen == 0) |
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return 0; |
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if (copy_from_user(kaddr, uaddr, ulen)) |
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return -EFAULT; |
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return audit_sockaddr(ulen, kaddr); |
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} /** * move_addr_to_user - copy an address to user space * @kaddr: kernel space address * @klen: length of address in kernel * @uaddr: user space address * @ulen: pointer to user length field * * The value pointed to by ulen on entry is the buffer length available. * This is overwritten with the buffer space used. -EINVAL is returned * if an overlong buffer is specified or a negative buffer size. -EFAULT * is returned if either the buffer or the length field are not * accessible. * After copying the data up to the limit the user specifies, the true * length of the data is written over the length limit the user * specified. Zero is returned for a success. */ |
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|
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static int move_addr_to_user(struct sockaddr_storage *kaddr, int klen, |
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void __user *uaddr, int __user *ulen) |
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{ int err; int len; |
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BUG_ON(klen > sizeof(struct sockaddr_storage)); |
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err = get_user(len, ulen); if (err) |
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return err; |
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if (len > klen) len = klen; |
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if (len < 0) |
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return -EINVAL; |
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if (len) { |
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if (audit_sockaddr(klen, kaddr)) return -ENOMEM; |
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if (copy_to_user(uaddr, kaddr, len)) |
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return -EFAULT; } /* |
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* "fromlen shall refer to the value before truncation.." * 1003.1g |
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*/ return __put_user(klen, ulen); } |
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static struct kmem_cache *sock_inode_cachep __ro_after_init; |
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static struct inode *sock_alloc_inode(struct super_block *sb) { struct socket_alloc *ei; |
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struct socket_wq *wq; |
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|
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ei = kmem_cache_alloc(sock_inode_cachep, GFP_KERNEL); |
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if (!ei) return NULL; |
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wq = kmalloc(sizeof(*wq), GFP_KERNEL); if (!wq) { |
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kmem_cache_free(sock_inode_cachep, ei); return NULL; } |
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init_waitqueue_head(&wq->wait); wq->fasync_list = NULL; |
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wq->flags = 0; |
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ei->socket.wq = wq; |
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|
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ei->socket.state = SS_UNCONNECTED; ei->socket.flags = 0; ei->socket.ops = NULL; ei->socket.sk = NULL; ei->socket.file = NULL; |
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return &ei->vfs_inode; } static void sock_destroy_inode(struct inode *inode) { |
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struct socket_alloc *ei; ei = container_of(inode, struct socket_alloc, vfs_inode); |
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kfree_rcu(ei->socket.wq, rcu); |
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kmem_cache_free(sock_inode_cachep, ei); |
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} |
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static void init_once(void *foo) |
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{ |
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struct socket_alloc *ei = (struct socket_alloc *)foo; |
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|
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inode_init_once(&ei->vfs_inode); |
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} |
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|
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static void init_inodecache(void) |
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{ sock_inode_cachep = kmem_cache_create("sock_inode_cache", |
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SLAB_MEM_SPREAD | SLAB_ACCOUNT), |
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init_once); |
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BUG_ON(sock_inode_cachep == NULL); |
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} |
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static const struct super_operations sockfs_ops = { |
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.alloc_inode = sock_alloc_inode, .destroy_inode = sock_destroy_inode, .statfs = simple_statfs, |
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}; |
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/* * sockfs_dname() is called from d_path(). */ static char *sockfs_dname(struct dentry *dentry, char *buffer, int buflen) { return dynamic_dname(dentry, buffer, buflen, "socket:[%lu]", |
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d_inode(dentry)->i_ino); |
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} |
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static const struct dentry_operations sockfs_dentry_operations = { |
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.d_dname = sockfs_dname, |
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}; |
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static int sockfs_xattr_get(const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, const char *suffix, void *value, size_t size) { if (value) { if (dentry->d_name.len + 1 > size) return -ERANGE; memcpy(value, dentry->d_name.name, dentry->d_name.len + 1); } return dentry->d_name.len + 1; } #define XATTR_SOCKPROTONAME_SUFFIX "sockprotoname" #define XATTR_NAME_SOCKPROTONAME (XATTR_SYSTEM_PREFIX XATTR_SOCKPROTONAME_SUFFIX) #define XATTR_NAME_SOCKPROTONAME_LEN (sizeof(XATTR_NAME_SOCKPROTONAME)-1) static const struct xattr_handler sockfs_xattr_handler = { .name = XATTR_NAME_SOCKPROTONAME, .get = sockfs_xattr_get, }; |
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static int sockfs_security_xattr_set(const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, const char *suffix, const void *value, size_t size, int flags) { /* Handled by LSM. */ return -EAGAIN; } static const struct xattr_handler sockfs_security_xattr_handler = { .prefix = XATTR_SECURITY_PREFIX, .set = sockfs_security_xattr_set, }; |
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static const struct xattr_handler *sockfs_xattr_handlers[] = { &sockfs_xattr_handler, |
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&sockfs_security_xattr_handler, |
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NULL }; |
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static struct dentry *sockfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { |
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return mount_pseudo_xattr(fs_type, "socket:", &sockfs_ops, sockfs_xattr_handlers, &sockfs_dentry_operations, SOCKFS_MAGIC); |
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} static struct vfsmount *sock_mnt __read_mostly; static struct file_system_type sock_fs_type = { .name = "sockfs", .mount = sockfs_mount, .kill_sb = kill_anon_super, }; |
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/* * Obtains the first available file descriptor and sets it up for use. * |
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* These functions create file structures and maps them to fd space * of the current process. On success it returns file descriptor |
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* and file struct implicitly stored in sock->file. * Note that another thread may close file descriptor before we return * from this function. We use the fact that now we do not refer * to socket after mapping. If one day we will need it, this * function will increment ref. count on file by 1. * * In any case returned fd MAY BE not valid! * This race condition is unavoidable * with shared fd spaces, we cannot solve it inside kernel, * but we take care of internal coherence yet. */ |
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struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname) |
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{ |
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struct file *file; |
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|
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if (!dname) dname = sock->sk ? sock->sk->sk_prot_creator->name : ""; |
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|
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file = alloc_file_pseudo(SOCK_INODE(sock), sock_mnt, dname, O_RDWR | (flags & O_NONBLOCK), &socket_file_ops); |
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if (IS_ERR(file)) { |
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sock_release(sock); |
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return file; |
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} sock->file = file; |
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file->private_data = sock; |
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return file; |
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} |
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EXPORT_SYMBOL(sock_alloc_file); |
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|
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static int sock_map_fd(struct socket *sock, int flags) |
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{ struct file *newfile; |
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int fd = get_unused_fd_flags(flags); |
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if (unlikely(fd < 0)) { sock_release(sock); |
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return fd; |
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} |
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|
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newfile = sock_alloc_file(sock, flags, NULL); |
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if (likely(!IS_ERR(newfile))) { |
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fd_install(fd, newfile); |
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return fd; } |
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|
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put_unused_fd(fd); return PTR_ERR(newfile); |
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} |
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struct socket *sock_from_file(struct file *file, int *err) |
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{ |
6cb153cab [NET]: use fget_l... |
410 411 |
if (file->f_op == &socket_file_ops) return file->private_data; /* set in sock_map_fd */ |
23bb80d21 [NET]: cleanup so... |
412 413 |
*err = -ENOTSOCK; return NULL; |
6cb153cab [NET]: use fget_l... |
414 |
} |
406a3c638 net: netprio_cgro... |
415 |
EXPORT_SYMBOL(sock_from_file); |
6cb153cab [NET]: use fget_l... |
416 |
|
1da177e4c Linux-2.6.12-rc2 |
417 |
/** |
c6d409cfd From abbffa2aa9bd... |
418 |
* sockfd_lookup - Go from a file number to its socket slot |
1da177e4c Linux-2.6.12-rc2 |
419 420 421 422 |
* @fd: file handle * @err: pointer to an error code return * * The file handle passed in is locked and the socket it is bound |
241c4667f net: socket: fix ... |
423 |
* to is returned. If an error occurs the err pointer is overwritten |
1da177e4c Linux-2.6.12-rc2 |
424 425 426 427 428 429 430 431 432 |
* with a negative errno code and NULL is returned. The function checks * for both invalid handles and passing a handle which is not a socket. * * On a success the socket object pointer is returned. */ struct socket *sockfd_lookup(int fd, int *err) { struct file *file; |
1da177e4c Linux-2.6.12-rc2 |
433 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
434 435 |
file = fget(fd); if (!file) { |
1da177e4c Linux-2.6.12-rc2 |
436 437 438 |
*err = -EBADF; return NULL; } |
89bddce58 [NET] socket: cod... |
439 |
|
6cb153cab [NET]: use fget_l... |
440 441 |
sock = sock_from_file(file, err); if (!sock) |
1da177e4c Linux-2.6.12-rc2 |
442 |
fput(file); |
6cb153cab [NET]: use fget_l... |
443 444 |
return sock; } |
c6d409cfd From abbffa2aa9bd... |
445 |
EXPORT_SYMBOL(sockfd_lookup); |
1da177e4c Linux-2.6.12-rc2 |
446 |
|
6cb153cab [NET]: use fget_l... |
447 448 |
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed) { |
00e188ef6 sockfd_lookup_lig... |
449 |
struct fd f = fdget(fd); |
6cb153cab [NET]: use fget_l... |
450 |
struct socket *sock; |
3672558c6 [NET]: sockfd_loo... |
451 |
*err = -EBADF; |
00e188ef6 sockfd_lookup_lig... |
452 453 454 455 |
if (f.file) { sock = sock_from_file(f.file, err); if (likely(sock)) { *fput_needed = f.flags; |
6cb153cab [NET]: use fget_l... |
456 |
return sock; |
00e188ef6 sockfd_lookup_lig... |
457 458 |
} fdput(f); |
1da177e4c Linux-2.6.12-rc2 |
459 |
} |
6cb153cab [NET]: use fget_l... |
460 |
return NULL; |
1da177e4c Linux-2.6.12-rc2 |
461 |
} |
600e17792 net: Providing pr... |
462 463 464 465 466 |
static ssize_t sockfs_listxattr(struct dentry *dentry, char *buffer, size_t size) { ssize_t len; ssize_t used = 0; |
c5ef60352 VFS: net/: d_inod... |
467 |
len = security_inode_listsecurity(d_inode(dentry), buffer, size); |
600e17792 net: Providing pr... |
468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 |
if (len < 0) return len; used += len; if (buffer) { if (size < used) return -ERANGE; buffer += len; } len = (XATTR_NAME_SOCKPROTONAME_LEN + 1); used += len; if (buffer) { if (size < used) return -ERANGE; memcpy(buffer, XATTR_NAME_SOCKPROTONAME, len); buffer += len; } return used; } |
dc647ec88 net: socket: Make... |
488 |
static int sockfs_setattr(struct dentry *dentry, struct iattr *iattr) |
86741ec25 net: core: Add a ... |
489 490 |
{ int err = simple_setattr(dentry, iattr); |
e1a3a60a2 net: socket: don'... |
491 |
if (!err && (iattr->ia_valid & ATTR_UID)) { |
86741ec25 net: core: Add a ... |
492 |
struct socket *sock = SOCKET_I(d_inode(dentry)); |
6d8c50dcb socket: close rac... |
493 494 495 496 |
if (sock->sk) sock->sk->sk_uid = iattr->ia_uid; else err = -ENOENT; |
86741ec25 net: core: Add a ... |
497 498 499 500 |
} return err; } |
600e17792 net: Providing pr... |
501 |
static const struct inode_operations sockfs_inode_ops = { |
600e17792 net: Providing pr... |
502 |
.listxattr = sockfs_listxattr, |
86741ec25 net: core: Add a ... |
503 |
.setattr = sockfs_setattr, |
600e17792 net: Providing pr... |
504 |
}; |
1da177e4c Linux-2.6.12-rc2 |
505 506 |
/** * sock_alloc - allocate a socket |
89bddce58 [NET] socket: cod... |
507 |
* |
1da177e4c Linux-2.6.12-rc2 |
508 509 510 511 |
* Allocate a new inode and socket object. The two are bound together * and initialised. The socket is then returned. If we are out of inodes * NULL is returned. */ |
f4a00aacd net: Make sock_al... |
512 |
struct socket *sock_alloc(void) |
1da177e4c Linux-2.6.12-rc2 |
513 |
{ |
89bddce58 [NET] socket: cod... |
514 515 |
struct inode *inode; struct socket *sock; |
1da177e4c Linux-2.6.12-rc2 |
516 |
|
a209dfc7b vfs: dont chain p... |
517 |
inode = new_inode_pseudo(sock_mnt->mnt_sb); |
1da177e4c Linux-2.6.12-rc2 |
518 519 520 521 |
if (!inode) return NULL; sock = SOCKET_I(inode); |
85fe4025c fs: do not assign... |
522 |
inode->i_ino = get_next_ino(); |
89bddce58 [NET] socket: cod... |
523 |
inode->i_mode = S_IFSOCK | S_IRWXUGO; |
8192b0c48 CRED: Wrap task c... |
524 525 |
inode->i_uid = current_fsuid(); inode->i_gid = current_fsgid(); |
600e17792 net: Providing pr... |
526 |
inode->i_op = &sockfs_inode_ops; |
1da177e4c Linux-2.6.12-rc2 |
527 |
|
1da177e4c Linux-2.6.12-rc2 |
528 529 |
return sock; } |
f4a00aacd net: Make sock_al... |
530 |
EXPORT_SYMBOL(sock_alloc); |
1da177e4c Linux-2.6.12-rc2 |
531 |
|
1da177e4c Linux-2.6.12-rc2 |
532 533 534 535 536 537 |
/** * sock_release - close a socket * @sock: socket to close * * The socket is released from the protocol stack if it has a release * callback, and the inode is then released if the socket is bound to |
89bddce58 [NET] socket: cod... |
538 |
* an inode not a file. |
1da177e4c Linux-2.6.12-rc2 |
539 |
*/ |
89bddce58 [NET] socket: cod... |
540 |
|
6d8c50dcb socket: close rac... |
541 |
static void __sock_release(struct socket *sock, struct inode *inode) |
1da177e4c Linux-2.6.12-rc2 |
542 543 544 |
{ if (sock->ops) { struct module *owner = sock->ops->owner; |
6d8c50dcb socket: close rac... |
545 546 |
if (inode) inode_lock(inode); |
1da177e4c Linux-2.6.12-rc2 |
547 |
sock->ops->release(sock); |
5fdb551fd net: socket: set ... |
548 |
sock->sk = NULL; |
6d8c50dcb socket: close rac... |
549 550 |
if (inode) inode_unlock(inode); |
1da177e4c Linux-2.6.12-rc2 |
551 552 553 |
sock->ops = NULL; module_put(owner); } |
e6476c214 net: remove bogus... |
554 |
if (sock->wq->fasync_list) |
3410f22ea socket: replace s... |
555 556 |
pr_err("%s: fasync list not empty! ", __func__); |
1da177e4c Linux-2.6.12-rc2 |
557 |
|
1da177e4c Linux-2.6.12-rc2 |
558 559 560 561 |
if (!sock->file) { iput(SOCK_INODE(sock)); return; } |
89bddce58 [NET] socket: cod... |
562 |
sock->file = NULL; |
1da177e4c Linux-2.6.12-rc2 |
563 |
} |
6d8c50dcb socket: close rac... |
564 565 566 567 568 |
void sock_release(struct socket *sock) { __sock_release(sock, NULL); } |
c6d409cfd From abbffa2aa9bd... |
569 |
EXPORT_SYMBOL(sock_release); |
1da177e4c Linux-2.6.12-rc2 |
570 |
|
c14ac9451 sock: enable time... |
571 |
void __sock_tx_timestamp(__u16 tsflags, __u8 *tx_flags) |
20d494735 net: socket infra... |
572 |
{ |
140c55d4b net-timestamp: so... |
573 |
u8 flags = *tx_flags; |
c14ac9451 sock: enable time... |
574 |
if (tsflags & SOF_TIMESTAMPING_TX_HARDWARE) |
140c55d4b net-timestamp: so... |
575 |
flags |= SKBTX_HW_TSTAMP; |
c14ac9451 sock: enable time... |
576 |
if (tsflags & SOF_TIMESTAMPING_TX_SOFTWARE) |
140c55d4b net-timestamp: so... |
577 |
flags |= SKBTX_SW_TSTAMP; |
c14ac9451 sock: enable time... |
578 |
if (tsflags & SOF_TIMESTAMPING_TX_SCHED) |
140c55d4b net-timestamp: so... |
579 |
flags |= SKBTX_SCHED_TSTAMP; |
140c55d4b net-timestamp: so... |
580 |
*tx_flags = flags; |
20d494735 net: socket infra... |
581 |
} |
67cc0d407 net-timestamp: op... |
582 |
EXPORT_SYMBOL(__sock_tx_timestamp); |
20d494735 net: socket infra... |
583 |
|
d8725c86a get rid of the si... |
584 |
static inline int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg) |
1da177e4c Linux-2.6.12-rc2 |
585 |
{ |
01e97e651 new helper: msg_d... |
586 |
int ret = sock->ops->sendmsg(sock, msg, msg_data_left(msg)); |
d8725c86a get rid of the si... |
587 588 |
BUG_ON(ret == -EIOCBQUEUED); return ret; |
1da177e4c Linux-2.6.12-rc2 |
589 |
} |
d8725c86a get rid of the si... |
590 |
int sock_sendmsg(struct socket *sock, struct msghdr *msg) |
228e548e6 net: Add sendmmsg... |
591 |
{ |
d8725c86a get rid of the si... |
592 |
int err = security_socket_sendmsg(sock, msg, |
01e97e651 new helper: msg_d... |
593 |
msg_data_left(msg)); |
228e548e6 net: Add sendmmsg... |
594 |
|
d8725c86a get rid of the si... |
595 |
return err ?: sock_sendmsg_nosec(sock, msg); |
0cf00c6f3 net/socket.c : in... |
596 |
} |
c6d409cfd From abbffa2aa9bd... |
597 |
EXPORT_SYMBOL(sock_sendmsg); |
1da177e4c Linux-2.6.12-rc2 |
598 599 600 601 |
int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, size_t num, size_t size) { |
6aa248145 switch kernel_sen... |
602 |
iov_iter_kvec(&msg->msg_iter, WRITE | ITER_KVEC, vec, num, size); |
d8725c86a get rid of the si... |
603 |
return sock_sendmsg(sock, msg); |
1da177e4c Linux-2.6.12-rc2 |
604 |
} |
c6d409cfd From abbffa2aa9bd... |
605 |
EXPORT_SYMBOL(kernel_sendmsg); |
1da177e4c Linux-2.6.12-rc2 |
606 |
|
306b13eb3 proto_ops: Add lo... |
607 608 609 610 611 612 |
int kernel_sendmsg_locked(struct sock *sk, struct msghdr *msg, struct kvec *vec, size_t num, size_t size) { struct socket *sock = sk->sk_socket; if (!sock->ops->sendmsg_locked) |
db5980d80 net: fixes for sk... |
613 |
return sock_no_sendmsg_locked(sk, msg, size); |
306b13eb3 proto_ops: Add lo... |
614 615 616 617 618 619 |
iov_iter_kvec(&msg->msg_iter, WRITE | ITER_KVEC, vec, num, size); return sock->ops->sendmsg_locked(sk, msg, msg_data_left(msg)); } EXPORT_SYMBOL(kernel_sendmsg_locked); |
8605330aa tcp: fix SCM_TIME... |
620 621 622 623 624 625 626 627 628 |
static bool skb_is_err_queue(const struct sk_buff *skb) { /* pkt_type of skbs enqueued on the error queue are set to * PACKET_OUTGOING in skb_set_err_queue(). This is only safe to do * in recvmsg, since skbs received on a local socket will never * have a pkt_type of PACKET_OUTGOING. */ return skb->pkt_type == PACKET_OUTGOING; } |
b50a5c70f net: allow simult... |
629 630 631 632 633 634 635 636 637 638 639 640 |
/* On transmit, software and hardware timestamps are returned independently. * As the two skb clones share the hardware timestamp, which may be updated * before the software timestamp is received, a hardware TX timestamp may be * returned only if there is no software TX timestamp. Ignore false software * timestamps, which may be made in the __sock_recv_timestamp() call when the * option SO_TIMESTAMP(NS) is enabled on the socket, even when the skb has a * hardware timestamp. */ static bool skb_is_swtx_tstamp(const struct sk_buff *skb, int false_tstamp) { return skb->tstamp && !false_tstamp && skb_is_err_queue(skb); } |
aad9c8c47 net: add new cont... |
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 |
static void put_ts_pktinfo(struct msghdr *msg, struct sk_buff *skb) { struct scm_ts_pktinfo ts_pktinfo; struct net_device *orig_dev; if (!skb_mac_header_was_set(skb)) return; memset(&ts_pktinfo, 0, sizeof(ts_pktinfo)); rcu_read_lock(); orig_dev = dev_get_by_napi_id(skb_napi_id(skb)); if (orig_dev) ts_pktinfo.if_index = orig_dev->ifindex; rcu_read_unlock(); ts_pktinfo.pkt_length = skb->len - skb_mac_offset(skb); put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPING_PKTINFO, sizeof(ts_pktinfo), &ts_pktinfo); } |
92f37fd2e [NET]: Adding SO_... |
661 662 663 664 665 666 |
/* * called from sock_recv_timestamp() if sock_flag(sk, SOCK_RCVTSTAMP) */ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) { |
20d494735 net: socket infra... |
667 |
int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP); |
f24b9be59 net-timestamp: ex... |
668 |
struct scm_timestamping tss; |
b50a5c70f net: allow simult... |
669 |
int empty = 1, false_tstamp = 0; |
20d494735 net: socket infra... |
670 671 672 673 674 |
struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); /* Race occurred between timestamp enabling and packet receiving. Fill in the current time for now. */ |
b50a5c70f net: allow simult... |
675 |
if (need_software_tstamp && skb->tstamp == 0) { |
20d494735 net: socket infra... |
676 |
__net_timestamp(skb); |
b50a5c70f net: allow simult... |
677 678 |
false_tstamp = 1; } |
20d494735 net: socket infra... |
679 680 681 682 683 684 685 686 |
if (need_software_tstamp) { if (!sock_flag(sk, SOCK_RCVTSTAMPNS)) { struct timeval tv; skb_get_timestamp(skb, &tv); put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMP, sizeof(tv), &tv); } else { |
f24b9be59 net-timestamp: ex... |
687 688 |
struct timespec ts; skb_get_timestampns(skb, &ts); |
20d494735 net: socket infra... |
689 |
put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, |
f24b9be59 net-timestamp: ex... |
690 |
sizeof(ts), &ts); |
20d494735 net: socket infra... |
691 692 |
} } |
f24b9be59 net-timestamp: ex... |
693 |
memset(&tss, 0, sizeof(tss)); |
c199105d1 net-timestamp: on... |
694 |
if ((sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE) && |
f24b9be59 net-timestamp: ex... |
695 |
ktime_to_timespec_cond(skb->tstamp, tss.ts + 0)) |
20d494735 net: socket infra... |
696 |
empty = 0; |
4d276eb6a net: remove depre... |
697 |
if (shhwtstamps && |
b9f40e21e net-timestamp: mo... |
698 |
(sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) && |
b50a5c70f net: allow simult... |
699 |
!skb_is_swtx_tstamp(skb, false_tstamp) && |
aad9c8c47 net: add new cont... |
700 |
ktime_to_timespec_cond(shhwtstamps->hwtstamp, tss.ts + 2)) { |
4d276eb6a net: remove depre... |
701 |
empty = 0; |
aad9c8c47 net: add new cont... |
702 703 704 705 |
if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_PKTINFO) && !skb_is_err_queue(skb)) put_ts_pktinfo(msg, skb); } |
1c885808e tcp: SOF_TIMESTAM... |
706 |
if (!empty) { |
20d494735 net: socket infra... |
707 |
put_cmsg(msg, SOL_SOCKET, |
f24b9be59 net-timestamp: ex... |
708 |
SCM_TIMESTAMPING, sizeof(tss), &tss); |
1c885808e tcp: SOF_TIMESTAM... |
709 |
|
8605330aa tcp: fix SCM_TIME... |
710 |
if (skb_is_err_queue(skb) && skb->len && |
4ef1b2869 tcp: mark skbs wi... |
711 |
SKB_EXT_ERR(skb)->opt_stats) |
1c885808e tcp: SOF_TIMESTAM... |
712 713 714 |
put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPING_OPT_STATS, skb->len, skb->data); } |
92f37fd2e [NET]: Adding SO_... |
715 |
} |
7c81fd8bf [SOCKET]: Export ... |
716 |
EXPORT_SYMBOL_GPL(__sock_recv_timestamp); |
6e3e939f3 net: add wireless... |
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 |
void __sock_recv_wifi_status(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) { int ack; if (!sock_flag(sk, SOCK_WIFI_STATUS)) return; if (!skb->wifi_acked_valid) return; ack = skb->wifi_acked; put_cmsg(msg, SOL_SOCKET, SCM_WIFI_STATUS, sizeof(ack), &ack); } EXPORT_SYMBOL_GPL(__sock_recv_wifi_status); |
11165f145 socket: localize ... |
732 733 |
static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) |
3b885787e net: Generalize s... |
734 |
{ |
744d5a3e9 net: move skb->dr... |
735 |
if (sock_flag(sk, SOCK_RXQ_OVFL) && skb && SOCK_SKB_CB(skb)->dropcount) |
3b885787e net: Generalize s... |
736 |
put_cmsg(msg, SOL_SOCKET, SO_RXQ_OVFL, |
744d5a3e9 net: move skb->dr... |
737 |
sizeof(__u32), &SOCK_SKB_CB(skb)->dropcount); |
3b885787e net: Generalize s... |
738 |
} |
767dd0336 net: speedup sock... |
739 |
void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, |
3b885787e net: Generalize s... |
740 741 742 743 744 |
struct sk_buff *skb) { sock_recv_timestamp(msg, sk, skb); sock_recv_drops(msg, sk, skb); } |
767dd0336 net: speedup sock... |
745 |
EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops); |
3b885787e net: Generalize s... |
746 |
|
1b7841404 net: Remove iocb ... |
747 |
static inline int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg, |
2da62906b [net] drop 'size'... |
748 |
int flags) |
1da177e4c Linux-2.6.12-rc2 |
749 |
{ |
2da62906b [net] drop 'size'... |
750 |
return sock->ops->recvmsg(sock, msg, msg_data_left(msg), flags); |
1da177e4c Linux-2.6.12-rc2 |
751 |
} |
2da62906b [net] drop 'size'... |
752 |
int sock_recvmsg(struct socket *sock, struct msghdr *msg, int flags) |
a2e272554 net: Introduce re... |
753 |
{ |
2da62906b [net] drop 'size'... |
754 |
int err = security_socket_recvmsg(sock, msg, msg_data_left(msg), flags); |
a2e272554 net: Introduce re... |
755 |
|
2da62906b [net] drop 'size'... |
756 |
return err ?: sock_recvmsg_nosec(sock, msg, flags); |
1da177e4c Linux-2.6.12-rc2 |
757 |
} |
c6d409cfd From abbffa2aa9bd... |
758 |
EXPORT_SYMBOL(sock_recvmsg); |
1da177e4c Linux-2.6.12-rc2 |
759 |
|
c1249c0aa net: Document the... |
760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 |
/** * kernel_recvmsg - Receive a message from a socket (kernel space) * @sock: The socket to receive the message from * @msg: Received message * @vec: Input s/g array for message data * @num: Size of input s/g array * @size: Number of bytes to read * @flags: Message flags (MSG_DONTWAIT, etc...) * * On return the msg structure contains the scatter/gather array passed in the * vec argument. The array is modified so that it consists of the unfilled * portion of the original array. * * The returned value is the total number of bytes received, or an error. */ |
89bddce58 [NET] socket: cod... |
775 776 |
int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, size_t num, size_t size, int flags) |
1da177e4c Linux-2.6.12-rc2 |
777 778 779 |
{ mm_segment_t oldfs = get_fs(); int result; |
6aa248145 switch kernel_sen... |
780 |
iov_iter_kvec(&msg->msg_iter, READ | ITER_KVEC, vec, num, size); |
1da177e4c Linux-2.6.12-rc2 |
781 |
set_fs(KERNEL_DS); |
2da62906b [net] drop 'size'... |
782 |
result = sock_recvmsg(sock, msg, flags); |
1da177e4c Linux-2.6.12-rc2 |
783 784 785 |
set_fs(oldfs); return result; } |
c6d409cfd From abbffa2aa9bd... |
786 |
EXPORT_SYMBOL(kernel_recvmsg); |
1da177e4c Linux-2.6.12-rc2 |
787 |
|
ce1d4d3e8 [NET]: restructur... |
788 789 |
static ssize_t sock_sendpage(struct file *file, struct page *page, int offset, size_t size, loff_t *ppos, int more) |
1da177e4c Linux-2.6.12-rc2 |
790 |
{ |
1da177e4c Linux-2.6.12-rc2 |
791 792 |
struct socket *sock; int flags; |
ce1d4d3e8 [NET]: restructur... |
793 |
sock = file->private_data; |
35f9c09fe tcp: tcp_sendpage... |
794 795 796 |
flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0; /* more is a combination of MSG_MORE and MSG_SENDPAGE_NOTLAST */ flags |= more; |
ce1d4d3e8 [NET]: restructur... |
797 |
|
e69495838 Make sock_sendpag... |
798 |
return kernel_sendpage(sock, page, offset, size, flags); |
ce1d4d3e8 [NET]: restructur... |
799 |
} |
1da177e4c Linux-2.6.12-rc2 |
800 |
|
9c55e01c0 [TCP]: Splice rec... |
801 |
static ssize_t sock_splice_read(struct file *file, loff_t *ppos, |
c6d409cfd From abbffa2aa9bd... |
802 |
struct pipe_inode_info *pipe, size_t len, |
9c55e01c0 [TCP]: Splice rec... |
803 804 805 |
unsigned int flags) { struct socket *sock = file->private_data; |
997b37da1 [NET]: Make sure ... |
806 807 |
if (unlikely(!sock->ops->splice_read)) return -EINVAL; |
9c55e01c0 [TCP]: Splice rec... |
808 809 |
return sock->ops->splice_read(sock, ppos, pipe, len, flags); } |
8ae5e030f net: switch socke... |
810 |
static ssize_t sock_read_iter(struct kiocb *iocb, struct iov_iter *to) |
ce1d4d3e8 [NET]: restructur... |
811 |
{ |
6d6523302 net/socket.c: fol... |
812 813 |
struct file *file = iocb->ki_filp; struct socket *sock = file->private_data; |
0345f9313 net: socket: add ... |
814 815 |
struct msghdr msg = {.msg_iter = *to, .msg_iocb = iocb}; |
8ae5e030f net: switch socke... |
816 |
ssize_t res; |
ce1d4d3e8 [NET]: restructur... |
817 |
|
8ae5e030f net: switch socke... |
818 819 820 821 |
if (file->f_flags & O_NONBLOCK) msg.msg_flags = MSG_DONTWAIT; if (iocb->ki_pos != 0) |
1da177e4c Linux-2.6.12-rc2 |
822 |
return -ESPIPE; |
027445c37 [PATCH] Vectorize... |
823 |
|
66ee59af6 fs: remove ki_nbytes |
824 |
if (!iov_iter_count(to)) /* Match SYS5 behaviour */ |
1da177e4c Linux-2.6.12-rc2 |
825 |
return 0; |
2da62906b [net] drop 'size'... |
826 |
res = sock_recvmsg(sock, &msg, msg.msg_flags); |
8ae5e030f net: switch socke... |
827 828 |
*to = msg.msg_iter; return res; |
1da177e4c Linux-2.6.12-rc2 |
829 |
} |
8ae5e030f net: switch socke... |
830 |
static ssize_t sock_write_iter(struct kiocb *iocb, struct iov_iter *from) |
ce1d4d3e8 [NET]: restructur... |
831 |
{ |
6d6523302 net/socket.c: fol... |
832 833 |
struct file *file = iocb->ki_filp; struct socket *sock = file->private_data; |
0345f9313 net: socket: add ... |
834 835 |
struct msghdr msg = {.msg_iter = *from, .msg_iocb = iocb}; |
8ae5e030f net: switch socke... |
836 |
ssize_t res; |
1da177e4c Linux-2.6.12-rc2 |
837 |
|
8ae5e030f net: switch socke... |
838 |
if (iocb->ki_pos != 0) |
ce1d4d3e8 [NET]: restructur... |
839 |
return -ESPIPE; |
027445c37 [PATCH] Vectorize... |
840 |
|
8ae5e030f net: switch socke... |
841 842 |
if (file->f_flags & O_NONBLOCK) msg.msg_flags = MSG_DONTWAIT; |
6d6523302 net/socket.c: fol... |
843 844 |
if (sock->type == SOCK_SEQPACKET) msg.msg_flags |= MSG_EOR; |
d8725c86a get rid of the si... |
845 |
res = sock_sendmsg(sock, &msg); |
8ae5e030f net: switch socke... |
846 847 |
*from = msg.msg_iter; return res; |
1da177e4c Linux-2.6.12-rc2 |
848 |
} |
1da177e4c Linux-2.6.12-rc2 |
849 850 851 852 |
/* * Atomic setting of ioctl hooks to avoid race * with module unload. */ |
4a3e2f711 [NET] sem2mutex: ... |
853 |
static DEFINE_MUTEX(br_ioctl_mutex); |
c6d409cfd From abbffa2aa9bd... |
854 |
static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg); |
1da177e4c Linux-2.6.12-rc2 |
855 |
|
881d966b4 [NET]: Make the d... |
856 |
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
857 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
858 |
mutex_lock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
859 |
br_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
860 |
mutex_unlock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
861 862 |
} EXPORT_SYMBOL(brioctl_set); |
4a3e2f711 [NET] sem2mutex: ... |
863 |
static DEFINE_MUTEX(vlan_ioctl_mutex); |
881d966b4 [NET]: Make the d... |
864 |
static int (*vlan_ioctl_hook) (struct net *, void __user *arg); |
1da177e4c Linux-2.6.12-rc2 |
865 |
|
881d966b4 [NET]: Make the d... |
866 |
void vlan_ioctl_set(int (*hook) (struct net *, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
867 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
868 |
mutex_lock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
869 |
vlan_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
870 |
mutex_unlock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
871 872 |
} EXPORT_SYMBOL(vlan_ioctl_set); |
4a3e2f711 [NET] sem2mutex: ... |
873 |
static DEFINE_MUTEX(dlci_ioctl_mutex); |
89bddce58 [NET] socket: cod... |
874 |
static int (*dlci_ioctl_hook) (unsigned int, void __user *); |
1da177e4c Linux-2.6.12-rc2 |
875 |
|
89bddce58 [NET] socket: cod... |
876 |
void dlci_ioctl_set(int (*hook) (unsigned int, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
877 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
878 |
mutex_lock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
879 |
dlci_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
880 |
mutex_unlock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
881 882 |
} EXPORT_SYMBOL(dlci_ioctl_set); |
6b96018b2 compat: move sock... |
883 |
static long sock_do_ioctl(struct net *net, struct socket *sock, |
99f3c8966 Revert "socket: f... |
884 |
unsigned int cmd, unsigned long arg) |
6b96018b2 compat: move sock... |
885 886 887 888 889 890 891 892 893 894 |
{ int err; void __user *argp = (void __user *)arg; err = sock->ops->ioctl(sock, cmd, arg); /* * If this ioctl is unknown try to hand it down * to the NIC driver. */ |
36fd633ec net: separate SIO... |
895 896 |
if (err != -ENOIOCTLCMD) return err; |
6b96018b2 compat: move sock... |
897 |
|
36fd633ec net: separate SIO... |
898 899 900 901 902 903 904 905 906 |
if (cmd == SIOCGIFCONF) { struct ifconf ifc; if (copy_from_user(&ifc, argp, sizeof(struct ifconf))) return -EFAULT; rtnl_lock(); err = dev_ifconf(net, &ifc, sizeof(struct ifreq)); rtnl_unlock(); if (!err && copy_to_user(argp, &ifc, sizeof(struct ifconf))) err = -EFAULT; |
44c02a2c3 dev_ioctl(): move... |
907 908 909 |
} else { struct ifreq ifr; bool need_copyout; |
99f3c8966 Revert "socket: f... |
910 |
if (copy_from_user(&ifr, argp, sizeof(struct ifreq))) |
44c02a2c3 dev_ioctl(): move... |
911 912 913 |
return -EFAULT; err = dev_ioctl(net, cmd, &ifr, &need_copyout); if (!err && need_copyout) |
99f3c8966 Revert "socket: f... |
914 |
if (copy_to_user(argp, &ifr, sizeof(struct ifreq))) |
44c02a2c3 dev_ioctl(): move... |
915 |
return -EFAULT; |
36fd633ec net: separate SIO... |
916 |
} |
6b96018b2 compat: move sock... |
917 918 |
return err; } |
1da177e4c Linux-2.6.12-rc2 |
919 920 921 922 |
/* * With an ioctl, arg may well be a user mode pointer, but we don't know * what to do with it - that's up to the protocol still. */ |
d8d211a2a net: Make extern ... |
923 |
struct ns_common *get_net_ns(struct ns_common *ns) |
c62cce2ca net: add an ioctl... |
924 925 926 |
{ return &get_net(container_of(ns, struct net, ns))->ns; } |
d8d211a2a net: Make extern ... |
927 |
EXPORT_SYMBOL_GPL(get_net_ns); |
c62cce2ca net: add an ioctl... |
928 |
|
1da177e4c Linux-2.6.12-rc2 |
929 930 931 |
static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) { struct socket *sock; |
881d966b4 [NET]: Make the d... |
932 |
struct sock *sk; |
1da177e4c Linux-2.6.12-rc2 |
933 934 |
void __user *argp = (void __user *)arg; int pid, err; |
881d966b4 [NET]: Make the d... |
935 |
struct net *net; |
1da177e4c Linux-2.6.12-rc2 |
936 |
|
b69aee04f [NET]: Use file->... |
937 |
sock = file->private_data; |
881d966b4 [NET]: Make the d... |
938 |
sk = sock->sk; |
3b1e0a655 [NET] NETNS: Omit... |
939 |
net = sock_net(sk); |
44c02a2c3 dev_ioctl(): move... |
940 941 942 943 944 945 946 947 948 |
if (unlikely(cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15))) { struct ifreq ifr; bool need_copyout; if (copy_from_user(&ifr, argp, sizeof(struct ifreq))) return -EFAULT; err = dev_ioctl(net, cmd, &ifr, &need_copyout); if (!err && need_copyout) if (copy_to_user(argp, &ifr, sizeof(struct ifreq))) return -EFAULT; |
1da177e4c Linux-2.6.12-rc2 |
949 |
} else |
3d23e349d wext: refactor |
950 |
#ifdef CONFIG_WEXT_CORE |
1da177e4c Linux-2.6.12-rc2 |
951 |
if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) { |
b1b0c2450 lift handling of ... |
952 |
err = wext_handle_ioctl(net, cmd, argp); |
1da177e4c Linux-2.6.12-rc2 |
953 |
} else |
3d23e349d wext: refactor |
954 |
#endif |
89bddce58 [NET] socket: cod... |
955 |
switch (cmd) { |
1da177e4c Linux-2.6.12-rc2 |
956 957 958 959 960 |
case FIOSETOWN: case SIOCSPGRP: err = -EFAULT; if (get_user(pid, (int __user *)argp)) break; |
393cc3f51 fs/fcntl: f_setow... |
961 |
err = f_setown(sock->file, pid, 1); |
1da177e4c Linux-2.6.12-rc2 |
962 963 964 |
break; case FIOGETOWN: case SIOCGPGRP: |
609d7fa95 [PATCH] file: mod... |
965 |
err = put_user(f_getown(sock->file), |
89bddce58 [NET] socket: cod... |
966 |
(int __user *)argp); |
1da177e4c Linux-2.6.12-rc2 |
967 968 969 970 971 972 973 974 |
break; case SIOCGIFBR: case SIOCSIFBR: case SIOCBRADDBR: case SIOCBRDELBR: err = -ENOPKG; if (!br_ioctl_hook) request_module("bridge"); |
4a3e2f711 [NET] sem2mutex: ... |
975 |
mutex_lock(&br_ioctl_mutex); |
89bddce58 [NET] socket: cod... |
976 |
if (br_ioctl_hook) |
881d966b4 [NET]: Make the d... |
977 |
err = br_ioctl_hook(net, cmd, argp); |
4a3e2f711 [NET] sem2mutex: ... |
978 |
mutex_unlock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
979 980 981 982 983 984 |
break; case SIOCGIFVLAN: case SIOCSIFVLAN: err = -ENOPKG; if (!vlan_ioctl_hook) request_module("8021q"); |
4a3e2f711 [NET] sem2mutex: ... |
985 |
mutex_lock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
986 |
if (vlan_ioctl_hook) |
881d966b4 [NET]: Make the d... |
987 |
err = vlan_ioctl_hook(net, argp); |
4a3e2f711 [NET] sem2mutex: ... |
988 |
mutex_unlock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
989 |
break; |
1da177e4c Linux-2.6.12-rc2 |
990 991 992 993 994 |
case SIOCADDDLCI: case SIOCDELDLCI: err = -ENOPKG; if (!dlci_ioctl_hook) request_module("dlci"); |
7512cbf6e [DLCI]: Fix tiny ... |
995 996 |
mutex_lock(&dlci_ioctl_mutex); if (dlci_ioctl_hook) |
1da177e4c Linux-2.6.12-rc2 |
997 |
err = dlci_ioctl_hook(cmd, argp); |
7512cbf6e [DLCI]: Fix tiny ... |
998 |
mutex_unlock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
999 |
break; |
c62cce2ca net: add an ioctl... |
1000 1001 1002 1003 1004 1005 1006 |
case SIOCGSKNS: err = -EPERM; if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) break; err = open_related_ns(&net->ns, get_net_ns); break; |
1da177e4c Linux-2.6.12-rc2 |
1007 |
default: |
99f3c8966 Revert "socket: f... |
1008 |
err = sock_do_ioctl(net, sock, cmd, arg); |
1da177e4c Linux-2.6.12-rc2 |
1009 |
break; |
89bddce58 [NET] socket: cod... |
1010 |
} |
1da177e4c Linux-2.6.12-rc2 |
1011 1012 1013 1014 1015 1016 1017 |
return err; } int sock_create_lite(int family, int type, int protocol, struct socket **res) { int err; struct socket *sock = NULL; |
89bddce58 [NET] socket: cod... |
1018 |
|
1da177e4c Linux-2.6.12-rc2 |
1019 1020 1021 1022 1023 1024 1025 1026 1027 |
err = security_socket_create(family, type, protocol, 1); if (err) goto out; sock = sock_alloc(); if (!sock) { err = -ENOMEM; goto out; } |
1da177e4c Linux-2.6.12-rc2 |
1028 |
sock->type = type; |
7420ed23a [NetLabel]: SELin... |
1029 1030 1031 |
err = security_socket_post_create(sock, family, type, protocol, 1); if (err) goto out_release; |
1da177e4c Linux-2.6.12-rc2 |
1032 1033 1034 |
out: *res = sock; return err; |
7420ed23a [NetLabel]: SELin... |
1035 1036 1037 1038 |
out_release: sock_release(sock); sock = NULL; goto out; |
1da177e4c Linux-2.6.12-rc2 |
1039 |
} |
c6d409cfd From abbffa2aa9bd... |
1040 |
EXPORT_SYMBOL(sock_create_lite); |
1da177e4c Linux-2.6.12-rc2 |
1041 1042 |
/* No kernel lock held - perfect */ |
ade994f4f net: annotate ->p... |
1043 |
static __poll_t sock_poll(struct file *file, poll_table *wait) |
1da177e4c Linux-2.6.12-rc2 |
1044 |
{ |
3cafb3763 net: refactor soc... |
1045 |
struct socket *sock = file->private_data; |
a331de3bf net: remove sock_... |
1046 |
__poll_t events = poll_requested_events(wait), flag = 0; |
2d48d67fa net: poll/select ... |
1047 |
|
e88958e63 net: handle NULL ... |
1048 1049 |
if (!sock->ops->poll) return 0; |
f641f13b9 net: remove sock_... |
1050 |
|
a331de3bf net: remove sock_... |
1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 |
if (sk_can_busy_loop(sock->sk)) { /* poll once if requested by the syscall */ if (events & POLL_BUSY_LOOP) sk_busy_loop(sock->sk, 1); /* if this socket can poll_ll, tell the system call */ flag = POLL_BUSY_LOOP; } return sock->ops->poll(file, sock, wait) | flag; |
1da177e4c Linux-2.6.12-rc2 |
1061 |
} |
89bddce58 [NET] socket: cod... |
1062 |
static int sock_mmap(struct file *file, struct vm_area_struct *vma) |
1da177e4c Linux-2.6.12-rc2 |
1063 |
{ |
b69aee04f [NET]: Use file->... |
1064 |
struct socket *sock = file->private_data; |
1da177e4c Linux-2.6.12-rc2 |
1065 1066 1067 |
return sock->ops->mmap(file, sock, vma); } |
20380731b [NET]: Fix sparse... |
1068 |
static int sock_close(struct inode *inode, struct file *filp) |
1da177e4c Linux-2.6.12-rc2 |
1069 |
{ |
6d8c50dcb socket: close rac... |
1070 |
__sock_release(SOCKET_I(inode), inode); |
1da177e4c Linux-2.6.12-rc2 |
1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 |
return 0; } /* * Update the socket async list * * Fasync_list locking strategy. * * 1. fasync_list is modified only under process context socket lock * i.e. under semaphore. * 2. fasync_list is used under read_lock(&sk->sk_callback_lock) |
989a29792 fasync: RCU and f... |
1082 |
* or under socket lock |
1da177e4c Linux-2.6.12-rc2 |
1083 1084 1085 1086 |
*/ static int sock_fasync(int fd, struct file *filp, int on) { |
989a29792 fasync: RCU and f... |
1087 1088 |
struct socket *sock = filp->private_data; struct sock *sk = sock->sk; |
eaefd1105 net: add __rcu an... |
1089 |
struct socket_wq *wq; |
1da177e4c Linux-2.6.12-rc2 |
1090 |
|
989a29792 fasync: RCU and f... |
1091 |
if (sk == NULL) |
1da177e4c Linux-2.6.12-rc2 |
1092 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1093 1094 |
lock_sock(sk); |
e6476c214 net: remove bogus... |
1095 |
wq = sock->wq; |
eaefd1105 net: add __rcu an... |
1096 |
fasync_helper(fd, filp, on, &wq->fasync_list); |
1da177e4c Linux-2.6.12-rc2 |
1097 |
|
eaefd1105 net: add __rcu an... |
1098 |
if (!wq->fasync_list) |
989a29792 fasync: RCU and f... |
1099 1100 |
sock_reset_flag(sk, SOCK_FASYNC); else |
bcdce7195 net: speedup sk_w... |
1101 |
sock_set_flag(sk, SOCK_FASYNC); |
1da177e4c Linux-2.6.12-rc2 |
1102 |
|
989a29792 fasync: RCU and f... |
1103 |
release_sock(sk); |
1da177e4c Linux-2.6.12-rc2 |
1104 1105 |
return 0; } |
ceb5d58b2 net: fix sock_wak... |
1106 |
/* This function may be called only under rcu_lock */ |
1da177e4c Linux-2.6.12-rc2 |
1107 |
|
ceb5d58b2 net: fix sock_wak... |
1108 |
int sock_wake_async(struct socket_wq *wq, int how, int band) |
1da177e4c Linux-2.6.12-rc2 |
1109 |
{ |
ceb5d58b2 net: fix sock_wak... |
1110 |
if (!wq || !wq->fasync_list) |
1da177e4c Linux-2.6.12-rc2 |
1111 |
return -1; |
ceb5d58b2 net: fix sock_wak... |
1112 |
|
89bddce58 [NET] socket: cod... |
1113 |
switch (how) { |
8d8ad9d7c [NET]: Name magic... |
1114 |
case SOCK_WAKE_WAITD: |
ceb5d58b2 net: fix sock_wak... |
1115 |
if (test_bit(SOCKWQ_ASYNC_WAITDATA, &wq->flags)) |
1da177e4c Linux-2.6.12-rc2 |
1116 1117 |
break; goto call_kill; |
8d8ad9d7c [NET]: Name magic... |
1118 |
case SOCK_WAKE_SPACE: |
ceb5d58b2 net: fix sock_wak... |
1119 |
if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags)) |
1da177e4c Linux-2.6.12-rc2 |
1120 1121 |
break; /* fall through */ |
8d8ad9d7c [NET]: Name magic... |
1122 |
case SOCK_WAKE_IO: |
89bddce58 [NET] socket: cod... |
1123 |
call_kill: |
438154823 net: sock_def_rea... |
1124 |
kill_fasync(&wq->fasync_list, SIGIO, band); |
1da177e4c Linux-2.6.12-rc2 |
1125 |
break; |
8d8ad9d7c [NET]: Name magic... |
1126 |
case SOCK_WAKE_URG: |
438154823 net: sock_def_rea... |
1127 |
kill_fasync(&wq->fasync_list, SIGURG, band); |
1da177e4c Linux-2.6.12-rc2 |
1128 |
} |
ceb5d58b2 net: fix sock_wak... |
1129 |
|
1da177e4c Linux-2.6.12-rc2 |
1130 1131 |
return 0; } |
c6d409cfd From abbffa2aa9bd... |
1132 |
EXPORT_SYMBOL(sock_wake_async); |
1da177e4c Linux-2.6.12-rc2 |
1133 |
|
721db93a5 net: Export __soc... |
1134 |
int __sock_create(struct net *net, int family, int type, int protocol, |
89bddce58 [NET] socket: cod... |
1135 |
struct socket **res, int kern) |
1da177e4c Linux-2.6.12-rc2 |
1136 1137 1138 |
{ int err; struct socket *sock; |
55737fda0 [NET]: socket fam... |
1139 |
const struct net_proto_family *pf; |
1da177e4c Linux-2.6.12-rc2 |
1140 1141 |
/* |
89bddce58 [NET] socket: cod... |
1142 |
* Check protocol is in range |
1da177e4c Linux-2.6.12-rc2 |
1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 |
*/ if (family < 0 || family >= NPROTO) return -EAFNOSUPPORT; if (type < 0 || type >= SOCK_MAX) return -EINVAL; /* Compatibility. This uglymoron is moved from INET layer to here to avoid deadlock in module load. */ if (family == PF_INET && type == SOCK_PACKET) { |
f3c986908 net: socket: use ... |
1155 1156 1157 |
pr_info_once("%s uses obsolete (PF_INET,SOCK_PACKET) ", current->comm); |
1da177e4c Linux-2.6.12-rc2 |
1158 1159 1160 1161 1162 1163 |
family = PF_PACKET; } err = security_socket_create(family, type, protocol, kern); if (err) return err; |
89bddce58 [NET] socket: cod... |
1164 |
|
55737fda0 [NET]: socket fam... |
1165 1166 1167 1168 1169 1170 1171 |
/* * Allocate the socket and allow the family to set things up. if * the protocol is 0, the family is instructed to select an appropriate * default. */ sock = sock_alloc(); if (!sock) { |
e87cc4728 net: Convert net_... |
1172 1173 |
net_warn_ratelimited("socket: no more sockets "); |
55737fda0 [NET]: socket fam... |
1174 1175 1176 1177 1178 |
return -ENFILE; /* Not exactly a match, but its the closest posix thing */ } sock->type = type; |
95a5afca4 net: Remove CONFI... |
1179 |
#ifdef CONFIG_MODULES |
89bddce58 [NET] socket: cod... |
1180 1181 1182 |
/* Attempt to load a protocol module if the find failed. * * 12/09/1996 Marcin: But! this makes REALLY only sense, if the user |
1da177e4c Linux-2.6.12-rc2 |
1183 1184 1185 |
* requested real, full-featured networking support upon configuration. * Otherwise module support will break! */ |
190683a9d net: net_families... |
1186 |
if (rcu_access_pointer(net_families[family]) == NULL) |
89bddce58 [NET] socket: cod... |
1187 |
request_module("net-pf-%d", family); |
1da177e4c Linux-2.6.12-rc2 |
1188 |
#endif |
55737fda0 [NET]: socket fam... |
1189 1190 1191 1192 1193 |
rcu_read_lock(); pf = rcu_dereference(net_families[family]); err = -EAFNOSUPPORT; if (!pf) goto out_release; |
1da177e4c Linux-2.6.12-rc2 |
1194 1195 1196 1197 1198 |
/* * We will call the ->create function, that possibly is in a loadable * module, so we have to bump that loadable module refcnt first. */ |
55737fda0 [NET]: socket fam... |
1199 |
if (!try_module_get(pf->owner)) |
1da177e4c Linux-2.6.12-rc2 |
1200 |
goto out_release; |
55737fda0 [NET]: socket fam... |
1201 1202 |
/* Now protected by module ref count */ rcu_read_unlock(); |
3f378b684 net: pass kern to... |
1203 |
err = pf->create(net, sock, protocol, kern); |
55737fda0 [NET]: socket fam... |
1204 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1205 |
goto out_module_put; |
a79af59ef [NET]: Fix module... |
1206 |
|
1da177e4c Linux-2.6.12-rc2 |
1207 1208 1209 1210 |
/* * Now to bump the refcnt of the [loadable] module that owns this * socket at sock_release time we decrement its refcnt. */ |
55737fda0 [NET]: socket fam... |
1211 1212 |
if (!try_module_get(sock->ops->owner)) goto out_module_busy; |
1da177e4c Linux-2.6.12-rc2 |
1213 1214 1215 1216 |
/* * Now that we're done with the ->create function, the [loadable] * module can have its refcnt decremented */ |
55737fda0 [NET]: socket fam... |
1217 |
module_put(pf->owner); |
7420ed23a [NetLabel]: SELin... |
1218 1219 |
err = security_socket_post_create(sock, family, type, protocol, kern); if (err) |
3b1855255 [NET]: Fix unbala... |
1220 |
goto out_sock_release; |
55737fda0 [NET]: socket fam... |
1221 |
*res = sock; |
1da177e4c Linux-2.6.12-rc2 |
1222 |
|
55737fda0 [NET]: socket fam... |
1223 1224 1225 1226 |
return 0; out_module_busy: err = -EAFNOSUPPORT; |
1da177e4c Linux-2.6.12-rc2 |
1227 |
out_module_put: |
55737fda0 [NET]: socket fam... |
1228 1229 1230 |
sock->ops = NULL; module_put(pf->owner); out_sock_release: |
1da177e4c Linux-2.6.12-rc2 |
1231 |
sock_release(sock); |
55737fda0 [NET]: socket fam... |
1232 1233 1234 1235 1236 |
return err; out_release: rcu_read_unlock(); goto out_sock_release; |
1da177e4c Linux-2.6.12-rc2 |
1237 |
} |
721db93a5 net: Export __soc... |
1238 |
EXPORT_SYMBOL(__sock_create); |
1da177e4c Linux-2.6.12-rc2 |
1239 1240 1241 |
int sock_create(int family, int type, int protocol, struct socket **res) { |
1b8d7ae42 [NET]: Make socke... |
1242 |
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0); |
1da177e4c Linux-2.6.12-rc2 |
1243 |
} |
c6d409cfd From abbffa2aa9bd... |
1244 |
EXPORT_SYMBOL(sock_create); |
1da177e4c Linux-2.6.12-rc2 |
1245 |
|
eeb1bd5c4 net: Add a struct... |
1246 |
int sock_create_kern(struct net *net, int family, int type, int protocol, struct socket **res) |
1da177e4c Linux-2.6.12-rc2 |
1247 |
{ |
eeb1bd5c4 net: Add a struct... |
1248 |
return __sock_create(net, family, type, protocol, res, 1); |
1da177e4c Linux-2.6.12-rc2 |
1249 |
} |
c6d409cfd From abbffa2aa9bd... |
1250 |
EXPORT_SYMBOL(sock_create_kern); |
1da177e4c Linux-2.6.12-rc2 |
1251 |
|
9d6a15c3f net: socket: add ... |
1252 |
int __sys_socket(int family, int type, int protocol) |
1da177e4c Linux-2.6.12-rc2 |
1253 1254 1255 |
{ int retval; struct socket *sock; |
a677a039b flag parameters: ... |
1256 |
int flags; |
e38b36f32 flag parameters: ... |
1257 1258 1259 1260 1261 |
/* Check the SOCK_* constants for consistency. */ BUILD_BUG_ON(SOCK_CLOEXEC != O_CLOEXEC); BUILD_BUG_ON((SOCK_MAX | SOCK_TYPE_MASK) != SOCK_TYPE_MASK); BUILD_BUG_ON(SOCK_CLOEXEC & SOCK_TYPE_MASK); BUILD_BUG_ON(SOCK_NONBLOCK & SOCK_TYPE_MASK); |
a677a039b flag parameters: ... |
1262 |
flags = type & ~SOCK_TYPE_MASK; |
77d272005 flag parameters: ... |
1263 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
a677a039b flag parameters: ... |
1264 1265 |
return -EINVAL; type &= SOCK_TYPE_MASK; |
1da177e4c Linux-2.6.12-rc2 |
1266 |
|
aaca0bdca flag parameters: ... |
1267 1268 |
if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
1da177e4c Linux-2.6.12-rc2 |
1269 1270 |
retval = sock_create(family, type, protocol, &sock); if (retval < 0) |
8e1611e23 make sock_alloc_f... |
1271 |
return retval; |
1da177e4c Linux-2.6.12-rc2 |
1272 |
|
8e1611e23 make sock_alloc_f... |
1273 |
return sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); |
1da177e4c Linux-2.6.12-rc2 |
1274 |
} |
9d6a15c3f net: socket: add ... |
1275 1276 1277 1278 |
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) { return __sys_socket(family, type, protocol); } |
1da177e4c Linux-2.6.12-rc2 |
1279 1280 1281 |
/* * Create a pair of connected sockets. */ |
6debc8d83 net: socket: add ... |
1282 |
int __sys_socketpair(int family, int type, int protocol, int __user *usockvec) |
1da177e4c Linux-2.6.12-rc2 |
1283 1284 1285 |
{ struct socket *sock1, *sock2; int fd1, fd2, err; |
db3495099 [PATCH] AUDIT_FD_... |
1286 |
struct file *newfile1, *newfile2; |
a677a039b flag parameters: ... |
1287 1288 1289 |
int flags; flags = type & ~SOCK_TYPE_MASK; |
77d272005 flag parameters: ... |
1290 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
a677a039b flag parameters: ... |
1291 1292 |
return -EINVAL; type &= SOCK_TYPE_MASK; |
1da177e4c Linux-2.6.12-rc2 |
1293 |
|
aaca0bdca flag parameters: ... |
1294 1295 |
if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
1da177e4c Linux-2.6.12-rc2 |
1296 |
/* |
016a266bd socketpair(): all... |
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 |
* reserve descriptors and make sure we won't fail * to return them to userland. */ fd1 = get_unused_fd_flags(flags); if (unlikely(fd1 < 0)) return fd1; fd2 = get_unused_fd_flags(flags); if (unlikely(fd2 < 0)) { put_unused_fd(fd1); return fd2; } err = put_user(fd1, &usockvec[0]); if (err) goto out; err = put_user(fd2, &usockvec[1]); if (err) goto out; /* |
1da177e4c Linux-2.6.12-rc2 |
1319 1320 1321 1322 1323 |
* Obtain the first socket and check if the underlying protocol * supports the socketpair call. */ err = sock_create(family, type, protocol, &sock1); |
016a266bd socketpair(): all... |
1324 |
if (unlikely(err < 0)) |
1da177e4c Linux-2.6.12-rc2 |
1325 1326 1327 |
goto out; err = sock_create(family, type, protocol, &sock2); |
016a266bd socketpair(): all... |
1328 1329 1330 |
if (unlikely(err < 0)) { sock_release(sock1); goto out; |
bf3c23d17 [NET]: Fix error ... |
1331 |
} |
d73aa2867 net: handle error... |
1332 |
|
d47cd9450 net: hook socketp... |
1333 1334 1335 1336 1337 1338 |
err = security_socket_socketpair(sock1, sock2); if (unlikely(err)) { sock_release(sock2); sock_release(sock1); goto out; } |
016a266bd socketpair(): all... |
1339 1340 1341 1342 1343 |
err = sock1->ops->socketpair(sock1, sock2); if (unlikely(err < 0)) { sock_release(sock2); sock_release(sock1); goto out; |
284076305 take descriptor h... |
1344 |
} |
aab174f0d Merge branch 'for... |
1345 |
newfile1 = sock_alloc_file(sock1, flags, NULL); |
b5ffe6344 net: Drop unlikel... |
1346 |
if (IS_ERR(newfile1)) { |
284076305 take descriptor h... |
1347 |
err = PTR_ERR(newfile1); |
016a266bd socketpair(): all... |
1348 1349 |
sock_release(sock2); goto out; |
284076305 take descriptor h... |
1350 |
} |
aab174f0d Merge branch 'for... |
1351 |
newfile2 = sock_alloc_file(sock2, flags, NULL); |
284076305 take descriptor h... |
1352 1353 |
if (IS_ERR(newfile2)) { err = PTR_ERR(newfile2); |
016a266bd socketpair(): all... |
1354 1355 |
fput(newfile1); goto out; |
db3495099 [PATCH] AUDIT_FD_... |
1356 |
} |
157cf649a sanitize audit_fd... |
1357 |
audit_fd_pair(fd1, fd2); |
d73aa2867 net: handle error... |
1358 |
|
db3495099 [PATCH] AUDIT_FD_... |
1359 1360 |
fd_install(fd1, newfile1); fd_install(fd2, newfile2); |
d73aa2867 net: handle error... |
1361 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1362 |
|
016a266bd socketpair(): all... |
1363 |
out: |
d73aa2867 net: handle error... |
1364 |
put_unused_fd(fd2); |
d73aa2867 net: handle error... |
1365 |
put_unused_fd(fd1); |
1da177e4c Linux-2.6.12-rc2 |
1366 1367 |
return err; } |
6debc8d83 net: socket: add ... |
1368 1369 1370 1371 1372 |
SYSCALL_DEFINE4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec) { return __sys_socketpair(family, type, protocol, usockvec); } |
1da177e4c Linux-2.6.12-rc2 |
1373 1374 1375 1376 1377 1378 1379 |
/* * Bind a name to a socket. Nothing much to do here since it's * the protocol's responsibility to handle the local address. * * We move the socket address to kernel space before we call * the protocol layer (having also checked the address is ok). */ |
a87d35d87 net: socket: add ... |
1380 |
int __sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen) |
1da177e4c Linux-2.6.12-rc2 |
1381 1382 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1383 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1384 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1385 |
|
89bddce58 [NET] socket: cod... |
1386 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
e71a4783a [NET] core: white... |
1387 |
if (sock) { |
43db362d3 net: get rid of s... |
1388 |
err = move_addr_to_kernel(umyaddr, addrlen, &address); |
89bddce58 [NET] socket: cod... |
1389 1390 |
if (err >= 0) { err = security_socket_bind(sock, |
230b18392 net: Use standard... |
1391 |
(struct sockaddr *)&address, |
89bddce58 [NET] socket: cod... |
1392 |
addrlen); |
6cb153cab [NET]: use fget_l... |
1393 1394 |
if (!err) err = sock->ops->bind(sock, |
89bddce58 [NET] socket: cod... |
1395 |
(struct sockaddr *) |
230b18392 net: Use standard... |
1396 |
&address, addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1397 |
} |
6cb153cab [NET]: use fget_l... |
1398 |
fput_light(sock->file, fput_needed); |
89bddce58 [NET] socket: cod... |
1399 |
} |
1da177e4c Linux-2.6.12-rc2 |
1400 1401 |
return err; } |
a87d35d87 net: socket: add ... |
1402 1403 1404 1405 |
SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) { return __sys_bind(fd, umyaddr, addrlen); } |
1da177e4c Linux-2.6.12-rc2 |
1406 1407 1408 1409 1410 |
/* * Perform a listen. Basically, we allow the protocol to do anything * necessary for a listen, and if that works, we mark the socket as * ready for listening. */ |
25e290eed net: socket: add ... |
1411 |
int __sys_listen(int fd, int backlog) |
1da177e4c Linux-2.6.12-rc2 |
1412 1413 |
{ struct socket *sock; |
6cb153cab [NET]: use fget_l... |
1414 |
int err, fput_needed; |
b8e1f9b5c [NET] sysctl: mak... |
1415 |
int somaxconn; |
89bddce58 [NET] socket: cod... |
1416 1417 1418 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock) { |
8efa6e93c [NETNS]: Introduc... |
1419 |
somaxconn = sock_net(sock->sk)->core.sysctl_somaxconn; |
95c961747 net: cleanup unsi... |
1420 |
if ((unsigned int)backlog > somaxconn) |
b8e1f9b5c [NET] sysctl: mak... |
1421 |
backlog = somaxconn; |
1da177e4c Linux-2.6.12-rc2 |
1422 1423 |
err = security_socket_listen(sock, backlog); |
6cb153cab [NET]: use fget_l... |
1424 1425 |
if (!err) err = sock->ops->listen(sock, backlog); |
1da177e4c Linux-2.6.12-rc2 |
1426 |
|
6cb153cab [NET]: use fget_l... |
1427 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1428 1429 1430 |
} return err; } |
25e290eed net: socket: add ... |
1431 1432 1433 1434 |
SYSCALL_DEFINE2(listen, int, fd, int, backlog) { return __sys_listen(fd, backlog); } |
1da177e4c Linux-2.6.12-rc2 |
1435 1436 1437 1438 1439 1440 1441 1442 1443 |
/* * For accept, we attempt to create a new socket, set up the link * with the client, wake up the client, then return the new * connected fd. We collect the address of the connector in kernel * space and move it to user at the very end. This is unclean because * we open the socket then return an error. * * 1003.1g adds the ability to recvmsg() to query connection pending * status to recvmsg. We need to add that support in a way thats |
b903036aa net: Spelling s/s... |
1444 |
* clean when we restructure accept also. |
1da177e4c Linux-2.6.12-rc2 |
1445 |
*/ |
4541e8056 net: socket: add ... |
1446 1447 |
int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr, int __user *upeer_addrlen, int flags) |
1da177e4c Linux-2.6.12-rc2 |
1448 1449 |
{ struct socket *sock, *newsock; |
39d8c1b6f [NET]: Do not los... |
1450 |
struct file *newfile; |
6cb153cab [NET]: use fget_l... |
1451 |
int err, len, newfd, fput_needed; |
230b18392 net: Use standard... |
1452 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1453 |
|
77d272005 flag parameters: ... |
1454 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
aaca0bdca flag parameters: ... |
1455 1456 1457 1458 |
return -EINVAL; if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
6cb153cab [NET]: use fget_l... |
1459 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1460 1461 1462 1463 |
if (!sock) goto out; err = -ENFILE; |
c6d409cfd From abbffa2aa9bd... |
1464 1465 |
newsock = sock_alloc(); if (!newsock) |
1da177e4c Linux-2.6.12-rc2 |
1466 1467 1468 1469 |
goto out_put; newsock->type = sock->type; newsock->ops = sock->ops; |
1da177e4c Linux-2.6.12-rc2 |
1470 1471 1472 1473 1474 |
/* * We don't need try_module_get here, as the listening socket (sock) * has the protocol module (sock->ops->owner) held. */ __module_get(newsock->ops->owner); |
284076305 take descriptor h... |
1475 |
newfd = get_unused_fd_flags(flags); |
39d8c1b6f [NET]: Do not los... |
1476 1477 |
if (unlikely(newfd < 0)) { err = newfd; |
9a1875e60 [NET]: Fully fix ... |
1478 1479 |
sock_release(newsock); goto out_put; |
39d8c1b6f [NET]: Do not los... |
1480 |
} |
aab174f0d Merge branch 'for... |
1481 |
newfile = sock_alloc_file(newsock, flags, sock->sk->sk_prot_creator->name); |
b5ffe6344 net: Drop unlikel... |
1482 |
if (IS_ERR(newfile)) { |
284076305 take descriptor h... |
1483 1484 |
err = PTR_ERR(newfile); put_unused_fd(newfd); |
284076305 take descriptor h... |
1485 1486 |
goto out_put; } |
39d8c1b6f [NET]: Do not los... |
1487 |
|
a79af59ef [NET]: Fix module... |
1488 1489 |
err = security_socket_accept(sock, newsock); if (err) |
39d8c1b6f [NET]: Do not los... |
1490 |
goto out_fd; |
a79af59ef [NET]: Fix module... |
1491 |
|
cdfbabfb2 net: Work around ... |
1492 |
err = sock->ops->accept(sock, newsock, sock->file->f_flags, false); |
1da177e4c Linux-2.6.12-rc2 |
1493 |
if (err < 0) |
39d8c1b6f [NET]: Do not los... |
1494 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1495 1496 |
if (upeer_sockaddr) { |
9b2c45d47 net: make getname... |
1497 1498 1499 |
len = newsock->ops->getname(newsock, (struct sockaddr *)&address, 2); if (len < 0) { |
1da177e4c Linux-2.6.12-rc2 |
1500 |
err = -ECONNABORTED; |
39d8c1b6f [NET]: Do not los... |
1501 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1502 |
} |
43db362d3 net: get rid of s... |
1503 |
err = move_addr_to_user(&address, |
230b18392 net: Use standard... |
1504 |
len, upeer_sockaddr, upeer_addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1505 |
if (err < 0) |
39d8c1b6f [NET]: Do not los... |
1506 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1507 1508 1509 |
} /* File flags are not inherited via accept() unlike another OSes. */ |
39d8c1b6f [NET]: Do not los... |
1510 1511 |
fd_install(newfd, newfile); err = newfd; |
1da177e4c Linux-2.6.12-rc2 |
1512 |
|
1da177e4c Linux-2.6.12-rc2 |
1513 |
out_put: |
6cb153cab [NET]: use fget_l... |
1514 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1515 1516 |
out: return err; |
39d8c1b6f [NET]: Do not los... |
1517 |
out_fd: |
9606a2163 [NET]: Fix dentry... |
1518 |
fput(newfile); |
39d8c1b6f [NET]: Do not los... |
1519 |
put_unused_fd(newfd); |
1da177e4c Linux-2.6.12-rc2 |
1520 1521 |
goto out_put; } |
4541e8056 net: socket: add ... |
1522 1523 1524 1525 1526 |
SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags) { return __sys_accept4(fd, upeer_sockaddr, upeer_addrlen, flags); } |
20f37034f [CVE-2009-0029] S... |
1527 1528 |
SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen) |
aaca0bdca flag parameters: ... |
1529 |
{ |
4541e8056 net: socket: add ... |
1530 |
return __sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0); |
aaca0bdca flag parameters: ... |
1531 |
} |
1da177e4c Linux-2.6.12-rc2 |
1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 |
/* * Attempt to connect to a socket with the server address. The address * is in user space so we verify it is OK and move it to kernel space. * * For 1003.1g we need to add clean support for a bind to AF_UNSPEC to * break bindings * * NOTE: 1003.1g draft 6.3 is broken with respect to AX.25/NetROM and * other SEQPACKET protocols that take time to connect() as it doesn't * include the -EINPROGRESS status for such sockets. */ |
1387c2c2f net: socket: add ... |
1543 |
int __sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen) |
1da177e4c Linux-2.6.12-rc2 |
1544 1545 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1546 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1547 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1548 |
|
6cb153cab [NET]: use fget_l... |
1549 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1550 1551 |
if (!sock) goto out; |
43db362d3 net: get rid of s... |
1552 |
err = move_addr_to_kernel(uservaddr, addrlen, &address); |
1da177e4c Linux-2.6.12-rc2 |
1553 1554 |
if (err < 0) goto out_put; |
89bddce58 [NET] socket: cod... |
1555 |
err = |
230b18392 net: Use standard... |
1556 |
security_socket_connect(sock, (struct sockaddr *)&address, addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1557 1558 |
if (err) goto out_put; |
230b18392 net: Use standard... |
1559 |
err = sock->ops->connect(sock, (struct sockaddr *)&address, addrlen, |
1da177e4c Linux-2.6.12-rc2 |
1560 1561 |
sock->file->f_flags); out_put: |
6cb153cab [NET]: use fget_l... |
1562 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1563 1564 1565 |
out: return err; } |
1387c2c2f net: socket: add ... |
1566 1567 1568 1569 1570 |
SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen) { return __sys_connect(fd, uservaddr, addrlen); } |
1da177e4c Linux-2.6.12-rc2 |
1571 1572 1573 1574 |
/* * Get the local address ('name') of a socket object. Move the obtained * name to user space. */ |
8882a107b net: socket: add ... |
1575 1576 |
int __sys_getsockname(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len) |
1da177e4c Linux-2.6.12-rc2 |
1577 1578 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1579 |
struct sockaddr_storage address; |
9b2c45d47 net: make getname... |
1580 |
int err, fput_needed; |
89bddce58 [NET] socket: cod... |
1581 |
|
6cb153cab [NET]: use fget_l... |
1582 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1583 1584 1585 1586 1587 1588 |
if (!sock) goto out; err = security_socket_getsockname(sock); if (err) goto out_put; |
9b2c45d47 net: make getname... |
1589 1590 |
err = sock->ops->getname(sock, (struct sockaddr *)&address, 0); if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1591 |
goto out_put; |
9b2c45d47 net: make getname... |
1592 1593 |
/* "err" is actually length in this case */ err = move_addr_to_user(&address, err, usockaddr, usockaddr_len); |
1da177e4c Linux-2.6.12-rc2 |
1594 1595 |
out_put: |
6cb153cab [NET]: use fget_l... |
1596 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1597 1598 1599 |
out: return err; } |
8882a107b net: socket: add ... |
1600 1601 1602 1603 1604 |
SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len) { return __sys_getsockname(fd, usockaddr, usockaddr_len); } |
1da177e4c Linux-2.6.12-rc2 |
1605 1606 1607 1608 |
/* * Get the remote address ('name') of a socket object. Move the obtained * name to user space. */ |
b21c8f838 net: socket: add ... |
1609 1610 |
int __sys_getpeername(int fd, struct sockaddr __user *usockaddr, int __user *usockaddr_len) |
1da177e4c Linux-2.6.12-rc2 |
1611 1612 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1613 |
struct sockaddr_storage address; |
9b2c45d47 net: make getname... |
1614 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1615 |
|
89bddce58 [NET] socket: cod... |
1616 1617 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
1da177e4c Linux-2.6.12-rc2 |
1618 1619 |
err = security_socket_getpeername(sock); if (err) { |
6cb153cab [NET]: use fget_l... |
1620 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1621 1622 |
return err; } |
9b2c45d47 net: make getname... |
1623 1624 1625 1626 |
err = sock->ops->getname(sock, (struct sockaddr *)&address, 1); if (err >= 0) /* "err" is actually length in this case */ err = move_addr_to_user(&address, err, usockaddr, |
89bddce58 [NET] socket: cod... |
1627 |
usockaddr_len); |
6cb153cab [NET]: use fget_l... |
1628 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1629 1630 1631 |
} return err; } |
b21c8f838 net: socket: add ... |
1632 1633 1634 1635 1636 |
SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len) { return __sys_getpeername(fd, usockaddr, usockaddr_len); } |
1da177e4c Linux-2.6.12-rc2 |
1637 1638 1639 1640 1641 |
/* * Send a datagram to a given address. We move the address into kernel * space and check the user space data area is readable before invoking * the protocol. */ |
211b634b7 net: socket: add ... |
1642 1643 |
int __sys_sendto(int fd, void __user *buff, size_t len, unsigned int flags, struct sockaddr __user *addr, int addr_len) |
1da177e4c Linux-2.6.12-rc2 |
1644 1645 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1646 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1647 1648 1649 |
int err; struct msghdr msg; struct iovec iov; |
6cb153cab [NET]: use fget_l... |
1650 |
int fput_needed; |
6cb153cab [NET]: use fget_l... |
1651 |
|
602bd0e90 net: switch sendt... |
1652 1653 1654 |
err = import_single_range(WRITE, buff, len, &iov, &msg.msg_iter); if (unlikely(err)) return err; |
de0fa95c1 [NET]: Use sockfd... |
1655 1656 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) |
4387ff75f [NET]: Fix net/so... |
1657 |
goto out; |
6cb153cab [NET]: use fget_l... |
1658 |
|
89bddce58 [NET] socket: cod... |
1659 |
msg.msg_name = NULL; |
89bddce58 [NET] socket: cod... |
1660 1661 1662 |
msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_namelen = 0; |
6cb153cab [NET]: use fget_l... |
1663 |
if (addr) { |
43db362d3 net: get rid of s... |
1664 |
err = move_addr_to_kernel(addr, addr_len, &address); |
1da177e4c Linux-2.6.12-rc2 |
1665 1666 |
if (err < 0) goto out_put; |
230b18392 net: Use standard... |
1667 |
msg.msg_name = (struct sockaddr *)&address; |
89bddce58 [NET] socket: cod... |
1668 |
msg.msg_namelen = addr_len; |
1da177e4c Linux-2.6.12-rc2 |
1669 1670 1671 1672 |
} if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; msg.msg_flags = flags; |
d8725c86a get rid of the si... |
1673 |
err = sock_sendmsg(sock, &msg); |
1da177e4c Linux-2.6.12-rc2 |
1674 |
|
89bddce58 [NET] socket: cod... |
1675 |
out_put: |
de0fa95c1 [NET]: Use sockfd... |
1676 |
fput_light(sock->file, fput_needed); |
4387ff75f [NET]: Fix net/so... |
1677 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1678 1679 |
return err; } |
211b634b7 net: socket: add ... |
1680 1681 1682 1683 1684 1685 |
SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len) { return __sys_sendto(fd, buff, len, flags, addr, addr_len); } |
1da177e4c Linux-2.6.12-rc2 |
1686 |
/* |
89bddce58 [NET] socket: cod... |
1687 |
* Send a datagram down a socket. |
1da177e4c Linux-2.6.12-rc2 |
1688 |
*/ |
3e0fa65f8 [CVE-2009-0029] S... |
1689 |
SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len, |
95c961747 net: cleanup unsi... |
1690 |
unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1691 |
{ |
211b634b7 net: socket: add ... |
1692 |
return __sys_sendto(fd, buff, len, flags, NULL, 0); |
1da177e4c Linux-2.6.12-rc2 |
1693 1694 1695 |
} /* |
89bddce58 [NET] socket: cod... |
1696 |
* Receive a frame from the socket and optionally record the address of the |
1da177e4c Linux-2.6.12-rc2 |
1697 1698 1699 |
* sender. We verify the buffers are writable and if needed move the * sender address from kernel to user space. */ |
7a09e1eb9 net: socket: add ... |
1700 1701 |
int __sys_recvfrom(int fd, void __user *ubuf, size_t size, unsigned int flags, struct sockaddr __user *addr, int __user *addr_len) |
1da177e4c Linux-2.6.12-rc2 |
1702 1703 1704 1705 |
{ struct socket *sock; struct iovec iov; struct msghdr msg; |
230b18392 net: Use standard... |
1706 |
struct sockaddr_storage address; |
89bddce58 [NET] socket: cod... |
1707 |
int err, err2; |
6cb153cab [NET]: use fget_l... |
1708 |
int fput_needed; |
602bd0e90 net: switch sendt... |
1709 1710 1711 |
err = import_single_range(READ, ubuf, size, &iov, &msg.msg_iter); if (unlikely(err)) return err; |
de0fa95c1 [NET]: Use sockfd... |
1712 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1713 |
if (!sock) |
de0fa95c1 [NET]: Use sockfd... |
1714 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
1715 |
|
89bddce58 [NET] socket: cod... |
1716 1717 |
msg.msg_control = NULL; msg.msg_controllen = 0; |
f3d334260 net: rework recvm... |
1718 1719 1720 1721 |
/* Save some cycles and don't copy the address if not needed */ msg.msg_name = addr ? (struct sockaddr *)&address : NULL; /* We assume all kernel code knows the size of sockaddr_storage */ msg.msg_namelen = 0; |
130ed5d10 net: fix uninitia... |
1722 |
msg.msg_iocb = NULL; |
9f138fa60 net: initialize m... |
1723 |
msg.msg_flags = 0; |
1da177e4c Linux-2.6.12-rc2 |
1724 1725 |
if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; |
2da62906b [net] drop 'size'... |
1726 |
err = sock_recvmsg(sock, &msg, flags); |
1da177e4c Linux-2.6.12-rc2 |
1727 |
|
89bddce58 [NET] socket: cod... |
1728 |
if (err >= 0 && addr != NULL) { |
43db362d3 net: get rid of s... |
1729 |
err2 = move_addr_to_user(&address, |
230b18392 net: Use standard... |
1730 |
msg.msg_namelen, addr, addr_len); |
89bddce58 [NET] socket: cod... |
1731 1732 |
if (err2 < 0) err = err2; |
1da177e4c Linux-2.6.12-rc2 |
1733 |
} |
de0fa95c1 [NET]: Use sockfd... |
1734 1735 |
fput_light(sock->file, fput_needed); |
4387ff75f [NET]: Fix net/so... |
1736 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1737 1738 |
return err; } |
7a09e1eb9 net: socket: add ... |
1739 1740 1741 1742 1743 1744 |
SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size, unsigned int, flags, struct sockaddr __user *, addr, int __user *, addr_len) { return __sys_recvfrom(fd, ubuf, size, flags, addr, addr_len); } |
1da177e4c Linux-2.6.12-rc2 |
1745 |
/* |
89bddce58 [NET] socket: cod... |
1746 |
* Receive a datagram from a socket. |
1da177e4c Linux-2.6.12-rc2 |
1747 |
*/ |
b7c0ddf5f net: use SYSCALL_... |
1748 1749 |
SYSCALL_DEFINE4(recv, int, fd, void __user *, ubuf, size_t, size, unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1750 |
{ |
7a09e1eb9 net: socket: add ... |
1751 |
return __sys_recvfrom(fd, ubuf, size, flags, NULL, NULL); |
1da177e4c Linux-2.6.12-rc2 |
1752 1753 1754 1755 1756 1757 |
} /* * Set a socket option. Because we don't know the option lengths we have * to pass the user mode parameter for the protocols to sort out. */ |
cc36dca0d net: socket: add ... |
1758 1759 |
static int __sys_setsockopt(int fd, int level, int optname, char __user *optval, int optlen) |
1da177e4c Linux-2.6.12-rc2 |
1760 |
{ |
6cb153cab [NET]: use fget_l... |
1761 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1762 1763 1764 1765 |
struct socket *sock; if (optlen < 0) return -EINVAL; |
89bddce58 [NET] socket: cod... |
1766 1767 1768 1769 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { err = security_socket_setsockopt(sock, level, optname); |
6cb153cab [NET]: use fget_l... |
1770 1771 |
if (err) goto out_put; |
1da177e4c Linux-2.6.12-rc2 |
1772 1773 |
if (level == SOL_SOCKET) |
89bddce58 [NET] socket: cod... |
1774 1775 1776 |
err = sock_setsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
1777 |
else |
89bddce58 [NET] socket: cod... |
1778 1779 1780 |
err = sock->ops->setsockopt(sock, level, optname, optval, optlen); |
6cb153cab [NET]: use fget_l... |
1781 1782 |
out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1783 1784 1785 |
} return err; } |
cc36dca0d net: socket: add ... |
1786 1787 1788 1789 1790 |
SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname, char __user *, optval, int, optlen) { return __sys_setsockopt(fd, level, optname, optval, optlen); } |
1da177e4c Linux-2.6.12-rc2 |
1791 1792 1793 1794 |
/* * Get a socket option. Because we don't know the option lengths we have * to pass a user mode parameter for the protocols to sort out. */ |
13a2d70e2 net: socket: add ... |
1795 1796 |
static int __sys_getsockopt(int fd, int level, int optname, char __user *optval, int __user *optlen) |
1da177e4c Linux-2.6.12-rc2 |
1797 |
{ |
6cb153cab [NET]: use fget_l... |
1798 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1799 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
1800 1801 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
6cb153cab [NET]: use fget_l... |
1802 1803 1804 |
err = security_socket_getsockopt(sock, level, optname); if (err) goto out_put; |
1da177e4c Linux-2.6.12-rc2 |
1805 1806 |
if (level == SOL_SOCKET) |
89bddce58 [NET] socket: cod... |
1807 1808 1809 |
err = sock_getsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
1810 |
else |
89bddce58 [NET] socket: cod... |
1811 1812 1813 |
err = sock->ops->getsockopt(sock, level, optname, optval, optlen); |
6cb153cab [NET]: use fget_l... |
1814 1815 |
out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1816 1817 1818 |
} return err; } |
13a2d70e2 net: socket: add ... |
1819 1820 1821 1822 1823 |
SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname, char __user *, optval, int __user *, optlen) { return __sys_getsockopt(fd, level, optname, optval, optlen); } |
1da177e4c Linux-2.6.12-rc2 |
1824 1825 1826 |
/* * Shutdown a socket. */ |
005a1aeac net: socket: add ... |
1827 |
int __sys_shutdown(int fd, int how) |
1da177e4c Linux-2.6.12-rc2 |
1828 |
{ |
6cb153cab [NET]: use fget_l... |
1829 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1830 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
1831 1832 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
1da177e4c Linux-2.6.12-rc2 |
1833 |
err = security_socket_shutdown(sock, how); |
6cb153cab [NET]: use fget_l... |
1834 1835 1836 |
if (!err) err = sock->ops->shutdown(sock, how); fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1837 1838 1839 |
} return err; } |
005a1aeac net: socket: add ... |
1840 1841 1842 1843 |
SYSCALL_DEFINE2(shutdown, int, fd, int, how) { return __sys_shutdown(fd, how); } |
89bddce58 [NET] socket: cod... |
1844 |
/* A couple of helpful macros for getting the address of the 32/64 bit |
1da177e4c Linux-2.6.12-rc2 |
1845 1846 1847 1848 1849 |
* fields which are the same type (int / unsigned) on our platforms. */ #define COMPAT_MSG(msg, member) ((MSG_CMSG_COMPAT & flags) ? &msg##_compat->member : &msg->member) #define COMPAT_NAMELEN(msg) COMPAT_MSG(msg, msg_namelen) #define COMPAT_FLAGS(msg) COMPAT_MSG(msg, msg_flags) |
c71d8ebe7 net: Fix security... |
1850 1851 1852 1853 |
struct used_address { struct sockaddr_storage name; unsigned int name_len; }; |
da1842849 net: switch impor... |
1854 1855 1856 1857 |
static int copy_msghdr_from_user(struct msghdr *kmsg, struct user_msghdr __user *umsg, struct sockaddr __user **save_addr, struct iovec **iov) |
1661bf364 net: heap overflo... |
1858 |
{ |
ffb07550c copy_msghdr_from_... |
1859 |
struct user_msghdr msg; |
08adb7dab fold verify_iovec... |
1860 |
ssize_t err; |
ffb07550c copy_msghdr_from_... |
1861 |
if (copy_from_user(&msg, umsg, sizeof(*umsg))) |
1661bf364 net: heap overflo... |
1862 |
return -EFAULT; |
dbb490b96 net: socket: erro... |
1863 |
|
864d96642 net/socket: fix t... |
1864 |
kmsg->msg_control = (void __force *)msg.msg_control; |
ffb07550c copy_msghdr_from_... |
1865 1866 1867 1868 1869 |
kmsg->msg_controllen = msg.msg_controllen; kmsg->msg_flags = msg.msg_flags; kmsg->msg_namelen = msg.msg_namelen; if (!msg.msg_name) |
6a2a2b3ae net:socket: set m... |
1870 |
kmsg->msg_namelen = 0; |
dbb490b96 net: socket: erro... |
1871 1872 |
if (kmsg->msg_namelen < 0) return -EINVAL; |
1661bf364 net: heap overflo... |
1873 |
if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) |
db31c55a6 net: clamp ->msg_... |
1874 |
kmsg->msg_namelen = sizeof(struct sockaddr_storage); |
08adb7dab fold verify_iovec... |
1875 1876 |
if (save_addr) |
ffb07550c copy_msghdr_from_... |
1877 |
*save_addr = msg.msg_name; |
08adb7dab fold verify_iovec... |
1878 |
|
ffb07550c copy_msghdr_from_... |
1879 |
if (msg.msg_name && kmsg->msg_namelen) { |
08adb7dab fold verify_iovec... |
1880 |
if (!save_addr) { |
864d96642 net/socket: fix t... |
1881 1882 |
err = move_addr_to_kernel(msg.msg_name, kmsg->msg_namelen, |
08adb7dab fold verify_iovec... |
1883 1884 1885 1886 1887 1888 1889 1890 |
kmsg->msg_name); if (err < 0) return err; } } else { kmsg->msg_name = NULL; kmsg->msg_namelen = 0; } |
ffb07550c copy_msghdr_from_... |
1891 |
if (msg.msg_iovlen > UIO_MAXIOV) |
08adb7dab fold verify_iovec... |
1892 |
return -EMSGSIZE; |
0345f9313 net: socket: add ... |
1893 |
kmsg->msg_iocb = NULL; |
ffb07550c copy_msghdr_from_... |
1894 1895 |
return import_iovec(save_addr ? READ : WRITE, msg.msg_iov, msg.msg_iovlen, |
da1842849 net: switch impor... |
1896 |
UIO_FASTIOV, iov, &kmsg->msg_iter); |
1661bf364 net: heap overflo... |
1897 |
} |
666547ff5 separate kernel- ... |
1898 |
static int ___sys_sendmsg(struct socket *sock, struct user_msghdr __user *msg, |
95c961747 net: cleanup unsi... |
1899 |
struct msghdr *msg_sys, unsigned int flags, |
28a94d8fb net: Allow MSG_EO... |
1900 1901 |
struct used_address *used_address, unsigned int allowed_msghdr_flags) |
1da177e4c Linux-2.6.12-rc2 |
1902 |
{ |
89bddce58 [NET] socket: cod... |
1903 1904 |
struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; |
230b18392 net: Use standard... |
1905 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1906 |
struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; |
b9d717a7b [NET]: Make sure ... |
1907 |
unsigned char ctl[sizeof(struct cmsghdr) + 20] |
846cc1231 net: socket: pref... |
1908 |
__aligned(sizeof(__kernel_size_t)); |
89bddce58 [NET] socket: cod... |
1909 |
/* 20 is size of ipv6_pktinfo */ |
1da177e4c Linux-2.6.12-rc2 |
1910 |
unsigned char *ctl_buf = ctl; |
d8725c86a get rid of the si... |
1911 |
int ctl_len; |
08adb7dab fold verify_iovec... |
1912 |
ssize_t err; |
89bddce58 [NET] socket: cod... |
1913 |
|
08adb7dab fold verify_iovec... |
1914 |
msg_sys->msg_name = &address; |
1da177e4c Linux-2.6.12-rc2 |
1915 |
|
084493200 {compat_,}verify_... |
1916 |
if (MSG_CMSG_COMPAT & flags) |
08adb7dab fold verify_iovec... |
1917 |
err = get_compat_msghdr(msg_sys, msg_compat, NULL, &iov); |
084493200 {compat_,}verify_... |
1918 |
else |
08adb7dab fold verify_iovec... |
1919 |
err = copy_msghdr_from_user(msg_sys, msg, NULL, &iov); |
89bddce58 [NET] socket: cod... |
1920 |
if (err < 0) |
da1842849 net: switch impor... |
1921 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
1922 1923 |
err = -ENOBUFS; |
228e548e6 net: Add sendmmsg... |
1924 |
if (msg_sys->msg_controllen > INT_MAX) |
1da177e4c Linux-2.6.12-rc2 |
1925 |
goto out_freeiov; |
28a94d8fb net: Allow MSG_EO... |
1926 |
flags |= (msg_sys->msg_flags & allowed_msghdr_flags); |
228e548e6 net: Add sendmmsg... |
1927 |
ctl_len = msg_sys->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
1928 |
if ((MSG_CMSG_COMPAT & flags) && ctl_len) { |
89bddce58 [NET] socket: cod... |
1929 |
err = |
228e548e6 net: Add sendmmsg... |
1930 |
cmsghdr_from_user_compat_to_kern(msg_sys, sock->sk, ctl, |
89bddce58 [NET] socket: cod... |
1931 |
sizeof(ctl)); |
1da177e4c Linux-2.6.12-rc2 |
1932 1933 |
if (err) goto out_freeiov; |
228e548e6 net: Add sendmmsg... |
1934 1935 |
ctl_buf = msg_sys->msg_control; ctl_len = msg_sys->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
1936 |
} else if (ctl_len) { |
ac4340fc3 net: Assert at bu... |
1937 1938 |
BUILD_BUG_ON(sizeof(struct cmsghdr) != CMSG_ALIGN(sizeof(struct cmsghdr))); |
89bddce58 [NET] socket: cod... |
1939 |
if (ctl_len > sizeof(ctl)) { |
1da177e4c Linux-2.6.12-rc2 |
1940 |
ctl_buf = sock_kmalloc(sock->sk, ctl_len, GFP_KERNEL); |
89bddce58 [NET] socket: cod... |
1941 |
if (ctl_buf == NULL) |
1da177e4c Linux-2.6.12-rc2 |
1942 1943 1944 1945 |
goto out_freeiov; } err = -EFAULT; /* |
228e548e6 net: Add sendmmsg... |
1946 |
* Careful! Before this, msg_sys->msg_control contains a user pointer. |
1da177e4c Linux-2.6.12-rc2 |
1947 1948 1949 |
* Afterwards, it will be a kernel pointer. Thus the compiler-assisted * checking falls down on this. */ |
fb8621bb6 net: remove addre... |
1950 |
if (copy_from_user(ctl_buf, |
228e548e6 net: Add sendmmsg... |
1951 |
(void __user __force *)msg_sys->msg_control, |
89bddce58 [NET] socket: cod... |
1952 |
ctl_len)) |
1da177e4c Linux-2.6.12-rc2 |
1953 |
goto out_freectl; |
228e548e6 net: Add sendmmsg... |
1954 |
msg_sys->msg_control = ctl_buf; |
1da177e4c Linux-2.6.12-rc2 |
1955 |
} |
228e548e6 net: Add sendmmsg... |
1956 |
msg_sys->msg_flags = flags; |
1da177e4c Linux-2.6.12-rc2 |
1957 1958 |
if (sock->file->f_flags & O_NONBLOCK) |
228e548e6 net: Add sendmmsg... |
1959 |
msg_sys->msg_flags |= MSG_DONTWAIT; |
c71d8ebe7 net: Fix security... |
1960 1961 1962 1963 1964 1965 |
/* * If this is sendmmsg() and current destination address is same as * previously succeeded address, omit asking LSM's decision. * used_address->name_len is initialized to UINT_MAX so that the first * destination address never matches. */ |
bc909d9dd sendmmsg/sendmsg:... |
1966 1967 1968 |
if (used_address && msg_sys->msg_name && used_address->name_len == msg_sys->msg_namelen && !memcmp(&used_address->name, msg_sys->msg_name, |
c71d8ebe7 net: Fix security... |
1969 |
used_address->name_len)) { |
d8725c86a get rid of the si... |
1970 |
err = sock_sendmsg_nosec(sock, msg_sys); |
c71d8ebe7 net: Fix security... |
1971 1972 |
goto out_freectl; } |
d8725c86a get rid of the si... |
1973 |
err = sock_sendmsg(sock, msg_sys); |
c71d8ebe7 net: Fix security... |
1974 1975 1976 1977 1978 1979 |
/* * If this is sendmmsg() and sending to current destination address was * successful, remember it. */ if (used_address && err >= 0) { used_address->name_len = msg_sys->msg_namelen; |
bc909d9dd sendmmsg/sendmsg:... |
1980 1981 1982 |
if (msg_sys->msg_name) memcpy(&used_address->name, msg_sys->msg_name, used_address->name_len); |
c71d8ebe7 net: Fix security... |
1983 |
} |
1da177e4c Linux-2.6.12-rc2 |
1984 1985 |
out_freectl: |
89bddce58 [NET] socket: cod... |
1986 |
if (ctl_buf != ctl) |
1da177e4c Linux-2.6.12-rc2 |
1987 1988 |
sock_kfree_s(sock->sk, ctl_buf, ctl_len); out_freeiov: |
da1842849 net: switch impor... |
1989 |
kfree(iov); |
228e548e6 net: Add sendmmsg... |
1990 1991 1992 1993 1994 1995 |
return err; } /* * BSD sendmsg interface */ |
e1834a329 net: socket: move... |
1996 1997 |
long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned int flags, bool forbid_cmsg_compat) |
228e548e6 net: Add sendmmsg... |
1998 1999 2000 |
{ int fput_needed, err; struct msghdr msg_sys; |
1be374a05 net: Block MSG_CM... |
2001 |
struct socket *sock; |
e1834a329 net: socket: move... |
2002 2003 |
if (forbid_cmsg_compat && (flags & MSG_CMSG_COMPAT)) return -EINVAL; |
1be374a05 net: Block MSG_CM... |
2004 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
228e548e6 net: Add sendmmsg... |
2005 2006 |
if (!sock) goto out; |
28a94d8fb net: Allow MSG_EO... |
2007 |
err = ___sys_sendmsg(sock, msg, &msg_sys, flags, NULL, 0); |
228e548e6 net: Add sendmmsg... |
2008 |
|
6cb153cab [NET]: use fget_l... |
2009 |
fput_light(sock->file, fput_needed); |
89bddce58 [NET] socket: cod... |
2010 |
out: |
1da177e4c Linux-2.6.12-rc2 |
2011 2012 |
return err; } |
666547ff5 separate kernel- ... |
2013 |
SYSCALL_DEFINE3(sendmsg, int, fd, struct user_msghdr __user *, msg, unsigned int, flags) |
a7526eb5d net: Unbreak comp... |
2014 |
{ |
e1834a329 net: socket: move... |
2015 |
return __sys_sendmsg(fd, msg, flags, true); |
a7526eb5d net: Unbreak comp... |
2016 |
} |
228e548e6 net: Add sendmmsg... |
2017 2018 2019 2020 2021 |
/* * Linux sendmmsg interface */ int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, |
e1834a329 net: socket: move... |
2022 |
unsigned int flags, bool forbid_cmsg_compat) |
228e548e6 net: Add sendmmsg... |
2023 2024 2025 2026 2027 2028 |
{ int fput_needed, err, datagrams; struct socket *sock; struct mmsghdr __user *entry; struct compat_mmsghdr __user *compat_entry; struct msghdr msg_sys; |
c71d8ebe7 net: Fix security... |
2029 |
struct used_address used_address; |
f092276d8 net: Add MSG_BATC... |
2030 |
unsigned int oflags = flags; |
228e548e6 net: Add sendmmsg... |
2031 |
|
e1834a329 net: socket: move... |
2032 2033 |
if (forbid_cmsg_compat && (flags & MSG_CMSG_COMPAT)) return -EINVAL; |
98382f419 net: Cap number o... |
2034 2035 |
if (vlen > UIO_MAXIOV) vlen = UIO_MAXIOV; |
228e548e6 net: Add sendmmsg... |
2036 2037 2038 2039 2040 2041 |
datagrams = 0; sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) return err; |
c71d8ebe7 net: Fix security... |
2042 |
used_address.name_len = UINT_MAX; |
228e548e6 net: Add sendmmsg... |
2043 2044 |
entry = mmsg; compat_entry = (struct compat_mmsghdr __user *)mmsg; |
728ffb86f net: sendmmsg sho... |
2045 |
err = 0; |
f092276d8 net: Add MSG_BATC... |
2046 |
flags |= MSG_BATCH; |
228e548e6 net: Add sendmmsg... |
2047 2048 |
while (datagrams < vlen) { |
f092276d8 net: Add MSG_BATC... |
2049 2050 |
if (datagrams == vlen - 1) flags = oflags; |
228e548e6 net: Add sendmmsg... |
2051 |
if (MSG_CMSG_COMPAT & flags) { |
666547ff5 separate kernel- ... |
2052 |
err = ___sys_sendmsg(sock, (struct user_msghdr __user *)compat_entry, |
28a94d8fb net: Allow MSG_EO... |
2053 |
&msg_sys, flags, &used_address, MSG_EOR); |
228e548e6 net: Add sendmmsg... |
2054 2055 2056 2057 2058 |
if (err < 0) break; err = __put_user(err, &compat_entry->msg_len); ++compat_entry; } else { |
a7526eb5d net: Unbreak comp... |
2059 |
err = ___sys_sendmsg(sock, |
666547ff5 separate kernel- ... |
2060 |
(struct user_msghdr __user *)entry, |
28a94d8fb net: Allow MSG_EO... |
2061 |
&msg_sys, flags, &used_address, MSG_EOR); |
228e548e6 net: Add sendmmsg... |
2062 2063 2064 2065 2066 2067 2068 2069 2070 |
if (err < 0) break; err = put_user(err, &entry->msg_len); ++entry; } if (err) break; ++datagrams; |
3023898b7 sock: fix sendmms... |
2071 2072 |
if (msg_data_left(&msg_sys)) break; |
a78cb84c6 net: add scheduli... |
2073 |
cond_resched(); |
228e548e6 net: Add sendmmsg... |
2074 |
} |
228e548e6 net: Add sendmmsg... |
2075 |
fput_light(sock->file, fput_needed); |
728ffb86f net: sendmmsg sho... |
2076 2077 |
/* We only return an error if no datagrams were able to be sent */ if (datagrams != 0) |
228e548e6 net: Add sendmmsg... |
2078 |
return datagrams; |
228e548e6 net: Add sendmmsg... |
2079 2080 2081 2082 2083 2084 |
return err; } SYSCALL_DEFINE4(sendmmsg, int, fd, struct mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags) { |
e1834a329 net: socket: move... |
2085 |
return __sys_sendmmsg(fd, mmsg, vlen, flags, true); |
228e548e6 net: Add sendmmsg... |
2086 |
} |
666547ff5 separate kernel- ... |
2087 |
static int ___sys_recvmsg(struct socket *sock, struct user_msghdr __user *msg, |
95c961747 net: cleanup unsi... |
2088 |
struct msghdr *msg_sys, unsigned int flags, int nosec) |
1da177e4c Linux-2.6.12-rc2 |
2089 |
{ |
89bddce58 [NET] socket: cod... |
2090 2091 |
struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; |
1da177e4c Linux-2.6.12-rc2 |
2092 |
struct iovec iovstack[UIO_FASTIOV]; |
89bddce58 [NET] socket: cod... |
2093 |
struct iovec *iov = iovstack; |
1da177e4c Linux-2.6.12-rc2 |
2094 |
unsigned long cmsg_ptr; |
2da62906b [net] drop 'size'... |
2095 |
int len; |
08adb7dab fold verify_iovec... |
2096 |
ssize_t err; |
1da177e4c Linux-2.6.12-rc2 |
2097 2098 |
/* kernel mode address */ |
230b18392 net: Use standard... |
2099 |
struct sockaddr_storage addr; |
1da177e4c Linux-2.6.12-rc2 |
2100 2101 2102 |
/* user mode address pointers */ struct sockaddr __user *uaddr; |
08adb7dab fold verify_iovec... |
2103 |
int __user *uaddr_len = COMPAT_NAMELEN(msg); |
89bddce58 [NET] socket: cod... |
2104 |
|
08adb7dab fold verify_iovec... |
2105 |
msg_sys->msg_name = &addr; |
1da177e4c Linux-2.6.12-rc2 |
2106 |
|
f3d334260 net: rework recvm... |
2107 |
if (MSG_CMSG_COMPAT & flags) |
08adb7dab fold verify_iovec... |
2108 |
err = get_compat_msghdr(msg_sys, msg_compat, &uaddr, &iov); |
f3d334260 net: rework recvm... |
2109 |
else |
08adb7dab fold verify_iovec... |
2110 |
err = copy_msghdr_from_user(msg_sys, msg, &uaddr, &iov); |
1da177e4c Linux-2.6.12-rc2 |
2111 |
if (err < 0) |
da1842849 net: switch impor... |
2112 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
2113 |
|
a2e272554 net: Introduce re... |
2114 2115 |
cmsg_ptr = (unsigned long)msg_sys->msg_control; msg_sys->msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT); |
89bddce58 [NET] socket: cod... |
2116 |
|
f3d334260 net: rework recvm... |
2117 2118 |
/* We assume all kernel code knows the size of sockaddr_storage */ msg_sys->msg_namelen = 0; |
1da177e4c Linux-2.6.12-rc2 |
2119 2120 |
if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; |
2da62906b [net] drop 'size'... |
2121 |
err = (nosec ? sock_recvmsg_nosec : sock_recvmsg)(sock, msg_sys, flags); |
1da177e4c Linux-2.6.12-rc2 |
2122 2123 2124 2125 2126 |
if (err < 0) goto out_freeiov; len = err; if (uaddr != NULL) { |
43db362d3 net: get rid of s... |
2127 |
err = move_addr_to_user(&addr, |
a2e272554 net: Introduce re... |
2128 |
msg_sys->msg_namelen, uaddr, |
89bddce58 [NET] socket: cod... |
2129 |
uaddr_len); |
1da177e4c Linux-2.6.12-rc2 |
2130 2131 2132 |
if (err < 0) goto out_freeiov; } |
a2e272554 net: Introduce re... |
2133 |
err = __put_user((msg_sys->msg_flags & ~MSG_CMSG_COMPAT), |
37f7f421c [NET]: Do not lea... |
2134 |
COMPAT_FLAGS(msg)); |
1da177e4c Linux-2.6.12-rc2 |
2135 2136 2137 |
if (err) goto out_freeiov; if (MSG_CMSG_COMPAT & flags) |
a2e272554 net: Introduce re... |
2138 |
err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, |
1da177e4c Linux-2.6.12-rc2 |
2139 2140 |
&msg_compat->msg_controllen); else |
a2e272554 net: Introduce re... |
2141 |
err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, |
1da177e4c Linux-2.6.12-rc2 |
2142 2143 2144 2145 2146 2147 |
&msg->msg_controllen); if (err) goto out_freeiov; err = len; out_freeiov: |
da1842849 net: switch impor... |
2148 |
kfree(iov); |
a2e272554 net: Introduce re... |
2149 2150 2151 2152 2153 2154 |
return err; } /* * BSD recvmsg interface */ |
e1834a329 net: socket: move... |
2155 2156 |
long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned int flags, bool forbid_cmsg_compat) |
a2e272554 net: Introduce re... |
2157 2158 2159 |
{ int fput_needed, err; struct msghdr msg_sys; |
1be374a05 net: Block MSG_CM... |
2160 |
struct socket *sock; |
e1834a329 net: socket: move... |
2161 2162 |
if (forbid_cmsg_compat && (flags & MSG_CMSG_COMPAT)) return -EINVAL; |
1be374a05 net: Block MSG_CM... |
2163 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
a2e272554 net: Introduce re... |
2164 2165 |
if (!sock) goto out; |
a7526eb5d net: Unbreak comp... |
2166 |
err = ___sys_recvmsg(sock, msg, &msg_sys, flags, 0); |
a2e272554 net: Introduce re... |
2167 |
|
6cb153cab [NET]: use fget_l... |
2168 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
2169 2170 2171 |
out: return err; } |
666547ff5 separate kernel- ... |
2172 |
SYSCALL_DEFINE3(recvmsg, int, fd, struct user_msghdr __user *, msg, |
a7526eb5d net: Unbreak comp... |
2173 2174 |
unsigned int, flags) { |
e1834a329 net: socket: move... |
2175 |
return __sys_recvmsg(fd, msg, flags, true); |
a7526eb5d net: Unbreak comp... |
2176 |
} |
a2e272554 net: Introduce re... |
2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 |
/* * Linux recvmmsg interface */ int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, unsigned int flags, struct timespec *timeout) { int fput_needed, err, datagrams; struct socket *sock; struct mmsghdr __user *entry; |
d7256d0eb net: compat_mmsgh... |
2187 |
struct compat_mmsghdr __user *compat_entry; |
a2e272554 net: Introduce re... |
2188 |
struct msghdr msg_sys; |
766b9f928 fs: poll/select/r... |
2189 2190 |
struct timespec64 end_time; struct timespec64 timeout64; |
a2e272554 net: Introduce re... |
2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 |
if (timeout && poll_select_set_timeout(&end_time, timeout->tv_sec, timeout->tv_nsec)) return -EINVAL; datagrams = 0; sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) return err; |
7797dc414 socket: skip chec... |
2202 2203 2204 2205 2206 2207 |
if (likely(!(flags & MSG_ERRQUEUE))) { err = sock_error(sock->sk); if (err) { datagrams = err; goto out_put; } |
e623a9e9d net: socket: fix ... |
2208 |
} |
a2e272554 net: Introduce re... |
2209 2210 |
entry = mmsg; |
d7256d0eb net: compat_mmsgh... |
2211 |
compat_entry = (struct compat_mmsghdr __user *)mmsg; |
a2e272554 net: Introduce re... |
2212 2213 2214 2215 2216 |
while (datagrams < vlen) { /* * No need to ask LSM for more than the first datagram. */ |
d7256d0eb net: compat_mmsgh... |
2217 |
if (MSG_CMSG_COMPAT & flags) { |
666547ff5 separate kernel- ... |
2218 |
err = ___sys_recvmsg(sock, (struct user_msghdr __user *)compat_entry, |
a7526eb5d net: Unbreak comp... |
2219 2220 |
&msg_sys, flags & ~MSG_WAITFORONE, datagrams); |
d7256d0eb net: compat_mmsgh... |
2221 2222 2223 2224 2225 |
if (err < 0) break; err = __put_user(err, &compat_entry->msg_len); ++compat_entry; } else { |
a7526eb5d net: Unbreak comp... |
2226 |
err = ___sys_recvmsg(sock, |
666547ff5 separate kernel- ... |
2227 |
(struct user_msghdr __user *)entry, |
a7526eb5d net: Unbreak comp... |
2228 2229 |
&msg_sys, flags & ~MSG_WAITFORONE, datagrams); |
d7256d0eb net: compat_mmsgh... |
2230 2231 2232 2233 2234 |
if (err < 0) break; err = put_user(err, &entry->msg_len); ++entry; } |
a2e272554 net: Introduce re... |
2235 2236 |
if (err) break; |
a2e272554 net: Introduce re... |
2237 |
++datagrams; |
71c5c1595 net: Add MSG_WAIT... |
2238 2239 2240 |
/* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */ if (flags & MSG_WAITFORONE) flags |= MSG_DONTWAIT; |
a2e272554 net: Introduce re... |
2241 |
if (timeout) { |
766b9f928 fs: poll/select/r... |
2242 2243 2244 |
ktime_get_ts64(&timeout64); *timeout = timespec64_to_timespec( timespec64_sub(end_time, timeout64)); |
a2e272554 net: Introduce re... |
2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 |
if (timeout->tv_sec < 0) { timeout->tv_sec = timeout->tv_nsec = 0; break; } /* Timeout, return less than vlen datagrams */ if (timeout->tv_nsec == 0 && timeout->tv_sec == 0) break; } /* Out of band data, return right away */ if (msg_sys.msg_flags & MSG_OOB) break; |
a78cb84c6 net: add scheduli... |
2258 |
cond_resched(); |
a2e272554 net: Introduce re... |
2259 |
} |
a2e272554 net: Introduce re... |
2260 |
if (err == 0) |
34b88a68f net: Fix use afte... |
2261 2262 2263 2264 2265 2266 |
goto out_put; if (datagrams == 0) { datagrams = err; goto out_put; } |
a2e272554 net: Introduce re... |
2267 |
|
34b88a68f net: Fix use afte... |
2268 2269 2270 2271 2272 |
/* * We may return less entries than requested (vlen) if the * sock is non block and there aren't enough datagrams... */ if (err != -EAGAIN) { |
a2e272554 net: Introduce re... |
2273 |
/* |
34b88a68f net: Fix use afte... |
2274 2275 2276 2277 |
* ... or if recvmsg returns an error after we * received some datagrams, where we record the * error to return on the next call or if the * app asks about it using getsockopt(SO_ERROR). |
a2e272554 net: Introduce re... |
2278 |
*/ |
34b88a68f net: Fix use afte... |
2279 |
sock->sk->sk_err = -err; |
a2e272554 net: Introduce re... |
2280 |
} |
34b88a68f net: Fix use afte... |
2281 2282 |
out_put: fput_light(sock->file, fput_needed); |
a2e272554 net: Introduce re... |
2283 |
|
34b88a68f net: Fix use afte... |
2284 |
return datagrams; |
a2e272554 net: Introduce re... |
2285 |
} |
1255e2690 net: socket: add ... |
2286 2287 2288 |
static int do_sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, unsigned int flags, struct timespec __user *timeout) |
a2e272554 net: Introduce re... |
2289 2290 2291 |
{ int datagrams; struct timespec timeout_sys; |
1be374a05 net: Block MSG_CM... |
2292 2293 |
if (flags & MSG_CMSG_COMPAT) return -EINVAL; |
a2e272554 net: Introduce re... |
2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 |
if (!timeout) return __sys_recvmmsg(fd, mmsg, vlen, flags, NULL); if (copy_from_user(&timeout_sys, timeout, sizeof(timeout_sys))) return -EFAULT; datagrams = __sys_recvmmsg(fd, mmsg, vlen, flags, &timeout_sys); if (datagrams > 0 && copy_to_user(timeout, &timeout_sys, sizeof(timeout_sys))) datagrams = -EFAULT; return datagrams; } |
1255e2690 net: socket: add ... |
2308 2309 2310 2311 2312 2313 |
SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags, struct timespec __user *, timeout) { return do_sys_recvmmsg(fd, mmsg, vlen, flags, timeout); } |
a2e272554 net: Introduce re... |
2314 |
#ifdef __ARCH_WANT_SYS_SOCKETCALL |
1da177e4c Linux-2.6.12-rc2 |
2315 2316 |
/* Argument list sizes for sys_socketcall */ #define AL(x) ((x) * sizeof(unsigned long)) |
228e548e6 net: Add sendmmsg... |
2317 |
static const unsigned char nargs[21] = { |
c6d409cfd From abbffa2aa9bd... |
2318 2319 2320 |
AL(0), AL(3), AL(3), AL(3), AL(2), AL(3), AL(3), AL(3), AL(4), AL(4), AL(4), AL(6), AL(6), AL(2), AL(5), AL(5), AL(3), AL(3), |
228e548e6 net: Add sendmmsg... |
2321 |
AL(4), AL(5), AL(4) |
89bddce58 [NET] socket: cod... |
2322 |
}; |
1da177e4c Linux-2.6.12-rc2 |
2323 2324 2325 |
#undef AL /* |
89bddce58 [NET] socket: cod... |
2326 |
* System call vectors. |
1da177e4c Linux-2.6.12-rc2 |
2327 2328 2329 |
* * Argument checking cleaned up. Saved 20% in size. * This function doesn't need to set the kernel lock because |
89bddce58 [NET] socket: cod... |
2330 |
* it is set by the callees. |
1da177e4c Linux-2.6.12-rc2 |
2331 |
*/ |
3e0fa65f8 [CVE-2009-0029] S... |
2332 |
SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) |
1da177e4c Linux-2.6.12-rc2 |
2333 |
{ |
2950fa9d3 kernel: audit: be... |
2334 |
unsigned long a[AUDITSC_ARGS]; |
89bddce58 [NET] socket: cod... |
2335 |
unsigned long a0, a1; |
1da177e4c Linux-2.6.12-rc2 |
2336 |
int err; |
47379052b net: Add explicit... |
2337 |
unsigned int len; |
1da177e4c Linux-2.6.12-rc2 |
2338 |
|
228e548e6 net: Add sendmmsg... |
2339 |
if (call < 1 || call > SYS_SENDMMSG) |
1da177e4c Linux-2.6.12-rc2 |
2340 |
return -EINVAL; |
c8e8cd579 net: socket: fix ... |
2341 |
call = array_index_nospec(call, SYS_SENDMMSG + 1); |
1da177e4c Linux-2.6.12-rc2 |
2342 |
|
47379052b net: Add explicit... |
2343 2344 2345 |
len = nargs[call]; if (len > sizeof(a)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2346 |
/* copy_from_user should be SMP safe. */ |
47379052b net: Add explicit... |
2347 |
if (copy_from_user(a, args, len)) |
1da177e4c Linux-2.6.12-rc2 |
2348 |
return -EFAULT; |
3ec3b2fba AUDIT: Capture sy... |
2349 |
|
2950fa9d3 kernel: audit: be... |
2350 2351 2352 |
err = audit_socketcall(nargs[call] / sizeof(unsigned long), a); if (err) return err; |
3ec3b2fba AUDIT: Capture sy... |
2353 |
|
89bddce58 [NET] socket: cod... |
2354 2355 2356 2357 2358 |
a0 = a[0]; a1 = a[1]; switch (call) { case SYS_SOCKET: |
9d6a15c3f net: socket: add ... |
2359 |
err = __sys_socket(a0, a1, a[2]); |
89bddce58 [NET] socket: cod... |
2360 2361 |
break; case SYS_BIND: |
a87d35d87 net: socket: add ... |
2362 |
err = __sys_bind(a0, (struct sockaddr __user *)a1, a[2]); |
89bddce58 [NET] socket: cod... |
2363 2364 |
break; case SYS_CONNECT: |
1387c2c2f net: socket: add ... |
2365 |
err = __sys_connect(a0, (struct sockaddr __user *)a1, a[2]); |
89bddce58 [NET] socket: cod... |
2366 2367 |
break; case SYS_LISTEN: |
25e290eed net: socket: add ... |
2368 |
err = __sys_listen(a0, a1); |
89bddce58 [NET] socket: cod... |
2369 2370 |
break; case SYS_ACCEPT: |
4541e8056 net: socket: add ... |
2371 2372 |
err = __sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], 0); |
89bddce58 [NET] socket: cod... |
2373 2374 2375 |
break; case SYS_GETSOCKNAME: err = |
8882a107b net: socket: add ... |
2376 2377 |
__sys_getsockname(a0, (struct sockaddr __user *)a1, (int __user *)a[2]); |
89bddce58 [NET] socket: cod... |
2378 2379 2380 |
break; case SYS_GETPEERNAME: err = |
b21c8f838 net: socket: add ... |
2381 2382 |
__sys_getpeername(a0, (struct sockaddr __user *)a1, (int __user *)a[2]); |
89bddce58 [NET] socket: cod... |
2383 2384 |
break; case SYS_SOCKETPAIR: |
6debc8d83 net: socket: add ... |
2385 |
err = __sys_socketpair(a0, a1, a[2], (int __user *)a[3]); |
89bddce58 [NET] socket: cod... |
2386 2387 |
break; case SYS_SEND: |
f3bf896b1 net: socket: repl... |
2388 2389 |
err = __sys_sendto(a0, (void __user *)a1, a[2], a[3], NULL, 0); |
89bddce58 [NET] socket: cod... |
2390 2391 |
break; case SYS_SENDTO: |
211b634b7 net: socket: add ... |
2392 2393 |
err = __sys_sendto(a0, (void __user *)a1, a[2], a[3], (struct sockaddr __user *)a[4], a[5]); |
89bddce58 [NET] socket: cod... |
2394 2395 |
break; case SYS_RECV: |
d27e9afc6 net: socket: repl... |
2396 2397 |
err = __sys_recvfrom(a0, (void __user *)a1, a[2], a[3], NULL, NULL); |
89bddce58 [NET] socket: cod... |
2398 2399 |
break; case SYS_RECVFROM: |
7a09e1eb9 net: socket: add ... |
2400 2401 2402 |
err = __sys_recvfrom(a0, (void __user *)a1, a[2], a[3], (struct sockaddr __user *)a[4], (int __user *)a[5]); |
89bddce58 [NET] socket: cod... |
2403 2404 |
break; case SYS_SHUTDOWN: |
005a1aeac net: socket: add ... |
2405 |
err = __sys_shutdown(a0, a1); |
89bddce58 [NET] socket: cod... |
2406 2407 |
break; case SYS_SETSOCKOPT: |
cc36dca0d net: socket: add ... |
2408 2409 |
err = __sys_setsockopt(a0, a1, a[2], (char __user *)a[3], a[4]); |
89bddce58 [NET] socket: cod... |
2410 2411 2412 |
break; case SYS_GETSOCKOPT: err = |
13a2d70e2 net: socket: add ... |
2413 2414 |
__sys_getsockopt(a0, a1, a[2], (char __user *)a[3], (int __user *)a[4]); |
89bddce58 [NET] socket: cod... |
2415 2416 |
break; case SYS_SENDMSG: |
e1834a329 net: socket: move... |
2417 2418 |
err = __sys_sendmsg(a0, (struct user_msghdr __user *)a1, a[2], true); |
89bddce58 [NET] socket: cod... |
2419 |
break; |
228e548e6 net: Add sendmmsg... |
2420 |
case SYS_SENDMMSG: |
e1834a329 net: socket: move... |
2421 2422 |
err = __sys_sendmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3], true); |
228e548e6 net: Add sendmmsg... |
2423 |
break; |
89bddce58 [NET] socket: cod... |
2424 |
case SYS_RECVMSG: |
e1834a329 net: socket: move... |
2425 2426 |
err = __sys_recvmsg(a0, (struct user_msghdr __user *)a1, a[2], true); |
89bddce58 [NET] socket: cod... |
2427 |
break; |
a2e272554 net: Introduce re... |
2428 |
case SYS_RECVMMSG: |
1255e2690 net: socket: add ... |
2429 2430 |
err = do_sys_recvmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3], (struct timespec __user *)a[4]); |
a2e272554 net: Introduce re... |
2431 |
break; |
de11defeb reintroduce accept4 |
2432 |
case SYS_ACCEPT4: |
4541e8056 net: socket: add ... |
2433 2434 |
err = __sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], a[3]); |
aaca0bdca flag parameters: ... |
2435 |
break; |
89bddce58 [NET] socket: cod... |
2436 2437 2438 |
default: err = -EINVAL; break; |
1da177e4c Linux-2.6.12-rc2 |
2439 2440 2441 |
} return err; } |
89bddce58 [NET] socket: cod... |
2442 |
#endif /* __ARCH_WANT_SYS_SOCKETCALL */ |
1da177e4c Linux-2.6.12-rc2 |
2443 |
|
55737fda0 [NET]: socket fam... |
2444 2445 2446 2447 |
/** * sock_register - add a socket protocol handler * @ops: description of protocol * |
1da177e4c Linux-2.6.12-rc2 |
2448 2449 |
* This function is called by a protocol handler that wants to * advertise its address family, and have it linked into the |
e793c0f70 net: treewide: Fi... |
2450 |
* socket interface. The value ops->family corresponds to the |
55737fda0 [NET]: socket fam... |
2451 |
* socket system call protocol family. |
1da177e4c Linux-2.6.12-rc2 |
2452 |
*/ |
f0fd27d42 [NET]: sock_regis... |
2453 |
int sock_register(const struct net_proto_family *ops) |
1da177e4c Linux-2.6.12-rc2 |
2454 2455 2456 2457 |
{ int err; if (ops->family >= NPROTO) { |
3410f22ea socket: replace s... |
2458 2459 |
pr_crit("protocol %d >= NPROTO(%d) ", ops->family, NPROTO); |
1da177e4c Linux-2.6.12-rc2 |
2460 2461 |
return -ENOBUFS; } |
55737fda0 [NET]: socket fam... |
2462 2463 |
spin_lock(&net_family_lock); |
190683a9d net: net_families... |
2464 2465 |
if (rcu_dereference_protected(net_families[ops->family], lockdep_is_held(&net_family_lock))) |
55737fda0 [NET]: socket fam... |
2466 2467 |
err = -EEXIST; else { |
cf778b00e net: reintroduce ... |
2468 |
rcu_assign_pointer(net_families[ops->family], ops); |
1da177e4c Linux-2.6.12-rc2 |
2469 2470 |
err = 0; } |
55737fda0 [NET]: socket fam... |
2471 |
spin_unlock(&net_family_lock); |
3410f22ea socket: replace s... |
2472 2473 |
pr_info("NET: Registered protocol family %d ", ops->family); |
1da177e4c Linux-2.6.12-rc2 |
2474 2475 |
return err; } |
c6d409cfd From abbffa2aa9bd... |
2476 |
EXPORT_SYMBOL(sock_register); |
1da177e4c Linux-2.6.12-rc2 |
2477 |
|
55737fda0 [NET]: socket fam... |
2478 2479 2480 2481 |
/** * sock_unregister - remove a protocol handler * @family: protocol family to remove * |
1da177e4c Linux-2.6.12-rc2 |
2482 2483 |
* This function is called by a protocol handler that wants to * remove its address family, and have it unlinked from the |
55737fda0 [NET]: socket fam... |
2484 2485 2486 2487 2488 2489 |
* new socket creation. * * If protocol handler is a module, then it can use module reference * counts to protect against new references. If protocol handler is not * a module then it needs to provide its own protection in * the ops->create routine. |
1da177e4c Linux-2.6.12-rc2 |
2490 |
*/ |
f0fd27d42 [NET]: sock_regis... |
2491 |
void sock_unregister(int family) |
1da177e4c Linux-2.6.12-rc2 |
2492 |
{ |
f0fd27d42 [NET]: sock_regis... |
2493 |
BUG_ON(family < 0 || family >= NPROTO); |
1da177e4c Linux-2.6.12-rc2 |
2494 |
|
55737fda0 [NET]: socket fam... |
2495 |
spin_lock(&net_family_lock); |
a9b3cd7f3 rcu: convert uses... |
2496 |
RCU_INIT_POINTER(net_families[family], NULL); |
55737fda0 [NET]: socket fam... |
2497 2498 2499 |
spin_unlock(&net_family_lock); synchronize_rcu(); |
3410f22ea socket: replace s... |
2500 2501 |
pr_info("NET: Unregistered protocol family %d ", family); |
1da177e4c Linux-2.6.12-rc2 |
2502 |
} |
c6d409cfd From abbffa2aa9bd... |
2503 |
EXPORT_SYMBOL(sock_unregister); |
1da177e4c Linux-2.6.12-rc2 |
2504 |
|
bf2ae2e4b sock_diag: reques... |
2505 2506 |
bool sock_is_registered(int family) { |
66b51b0a0 net: sock_diag: F... |
2507 |
return family < NPROTO && rcu_access_pointer(net_families[family]); |
bf2ae2e4b sock_diag: reques... |
2508 |
} |
77d76ea31 [NET]: Small clea... |
2509 |
static int __init sock_init(void) |
1da177e4c Linux-2.6.12-rc2 |
2510 |
{ |
b3e19d924 fs: scale mntget/... |
2511 |
int err; |
2ca794e5e net sysctl: Initi... |
2512 2513 2514 2515 2516 2517 |
/* * Initialize the network sysctl infrastructure. */ err = net_sysctl_init(); if (err) goto out; |
b3e19d924 fs: scale mntget/... |
2518 |
|
1da177e4c Linux-2.6.12-rc2 |
2519 |
/* |
89bddce58 [NET] socket: cod... |
2520 |
* Initialize skbuff SLAB cache |
1da177e4c Linux-2.6.12-rc2 |
2521 2522 |
*/ skb_init(); |
1da177e4c Linux-2.6.12-rc2 |
2523 2524 |
/* |
89bddce58 [NET] socket: cod... |
2525 |
* Initialize the protocols module. |
1da177e4c Linux-2.6.12-rc2 |
2526 2527 2528 |
*/ init_inodecache(); |
b3e19d924 fs: scale mntget/... |
2529 2530 2531 2532 |
err = register_filesystem(&sock_fs_type); if (err) goto out_fs; |
1da177e4c Linux-2.6.12-rc2 |
2533 |
sock_mnt = kern_mount(&sock_fs_type); |
b3e19d924 fs: scale mntget/... |
2534 2535 2536 2537 |
if (IS_ERR(sock_mnt)) { err = PTR_ERR(sock_mnt); goto out_mount; } |
77d76ea31 [NET]: Small clea... |
2538 2539 |
/* The real protocol initialization is performed in later initcalls. |
1da177e4c Linux-2.6.12-rc2 |
2540 2541 2542 |
*/ #ifdef CONFIG_NETFILTER |
6d11cfdba netfilter: don't ... |
2543 2544 2545 |
err = netfilter_init(); if (err) goto out; |
1da177e4c Linux-2.6.12-rc2 |
2546 |
#endif |
cbeb321a6 [NET]: Fix sock_i... |
2547 |
|
408eccce3 net: ptp: move PT... |
2548 |
ptp_classifier_init(); |
c1f19b51d net: support time... |
2549 |
|
b3e19d924 fs: scale mntget/... |
2550 2551 2552 2553 2554 2555 2556 |
out: return err; out_mount: unregister_filesystem(&sock_fs_type); out_fs: goto out; |
1da177e4c Linux-2.6.12-rc2 |
2557 |
} |
77d76ea31 [NET]: Small clea... |
2558 |
core_initcall(sock_init); /* early initcall */ |
1da177e4c Linux-2.6.12-rc2 |
2559 2560 2561 |
#ifdef CONFIG_PROC_FS void socket_seq_show(struct seq_file *seq) { |
648845ab7 sock: Move the so... |
2562 2563 2564 |
seq_printf(seq, "sockets: used %d ", sock_inuse_get(seq->private)); |
1da177e4c Linux-2.6.12-rc2 |
2565 |
} |
89bddce58 [NET] socket: cod... |
2566 |
#endif /* CONFIG_PROC_FS */ |
1da177e4c Linux-2.6.12-rc2 |
2567 |
|
89bbfc95d [NET]: allow 32 b... |
2568 |
#ifdef CONFIG_COMPAT |
6b96018b2 compat: move sock... |
2569 |
static int do_siocgstamp(struct net *net, struct socket *sock, |
644595f89 compat: Handle CO... |
2570 |
unsigned int cmd, void __user *up) |
7a229387d net: copy socket ... |
2571 |
{ |
7a229387d net: copy socket ... |
2572 2573 2574 2575 2576 |
mm_segment_t old_fs = get_fs(); struct timeval ktv; int err; set_fs(KERNEL_DS); |
99f3c8966 Revert "socket: f... |
2577 |
err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv); |
7a229387d net: copy socket ... |
2578 |
set_fs(old_fs); |
644595f89 compat: Handle CO... |
2579 |
if (!err) |
ed6fe9d61 Fix order of argu... |
2580 |
err = compat_put_timeval(&ktv, up); |
644595f89 compat: Handle CO... |
2581 |
|
7a229387d net: copy socket ... |
2582 2583 |
return err; } |
6b96018b2 compat: move sock... |
2584 |
static int do_siocgstampns(struct net *net, struct socket *sock, |
644595f89 compat: Handle CO... |
2585 |
unsigned int cmd, void __user *up) |
7a229387d net: copy socket ... |
2586 |
{ |
7a229387d net: copy socket ... |
2587 2588 2589 2590 2591 |
mm_segment_t old_fs = get_fs(); struct timespec kts; int err; set_fs(KERNEL_DS); |
99f3c8966 Revert "socket: f... |
2592 |
err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts); |
7a229387d net: copy socket ... |
2593 |
set_fs(old_fs); |
644595f89 compat: Handle CO... |
2594 |
if (!err) |
ed6fe9d61 Fix order of argu... |
2595 |
err = compat_put_timespec(&kts, up); |
644595f89 compat: Handle CO... |
2596 |
|
7a229387d net: copy socket ... |
2597 2598 |
return err; } |
36fd633ec net: separate SIO... |
2599 |
static int compat_dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32) |
7a229387d net: copy socket ... |
2600 |
{ |
6b96018b2 compat: move sock... |
2601 |
struct compat_ifconf ifc32; |
7a229387d net: copy socket ... |
2602 |
struct ifconf ifc; |
7a229387d net: copy socket ... |
2603 |
int err; |
6b96018b2 compat: move sock... |
2604 |
if (copy_from_user(&ifc32, uifc32, sizeof(struct compat_ifconf))) |
7a229387d net: copy socket ... |
2605 |
return -EFAULT; |
36fd633ec net: separate SIO... |
2606 2607 |
ifc.ifc_len = ifc32.ifc_len; ifc.ifc_req = compat_ptr(ifc32.ifcbuf); |
7a229387d net: copy socket ... |
2608 |
|
36fd633ec net: separate SIO... |
2609 2610 2611 |
rtnl_lock(); err = dev_ifconf(net, &ifc, sizeof(struct compat_ifreq)); rtnl_unlock(); |
7a229387d net: copy socket ... |
2612 2613 |
if (err) return err; |
36fd633ec net: separate SIO... |
2614 |
ifc32.ifc_len = ifc.ifc_len; |
6b96018b2 compat: move sock... |
2615 |
if (copy_to_user(uifc32, &ifc32, sizeof(struct compat_ifconf))) |
7a229387d net: copy socket ... |
2616 2617 2618 2619 |
return -EFAULT; return 0; } |
6b96018b2 compat: move sock... |
2620 |
static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) |
7a229387d net: copy socket ... |
2621 |
{ |
3a7da39d1 ethtool: Compat h... |
2622 2623 |
struct compat_ethtool_rxnfc __user *compat_rxnfc; bool convert_in = false, convert_out = false; |
44c02a2c3 dev_ioctl(): move... |
2624 2625 2626 |
size_t buf_size = 0; struct ethtool_rxnfc __user *rxnfc = NULL; struct ifreq ifr; |
3a7da39d1 ethtool: Compat h... |
2627 2628 |
u32 rule_cnt = 0, actual_rule_cnt; u32 ethcmd; |
7a229387d net: copy socket ... |
2629 |
u32 data; |
3a7da39d1 ethtool: Compat h... |
2630 |
int ret; |
7a229387d net: copy socket ... |
2631 |
|
3a7da39d1 ethtool: Compat h... |
2632 2633 |
if (get_user(data, &ifr32->ifr_ifru.ifru_data)) return -EFAULT; |
7a229387d net: copy socket ... |
2634 |
|
3a7da39d1 ethtool: Compat h... |
2635 2636 2637 |
compat_rxnfc = compat_ptr(data); if (get_user(ethcmd, &compat_rxnfc->cmd)) |
7a229387d net: copy socket ... |
2638 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 |
/* Most ethtool structures are defined without padding. * Unfortunately struct ethtool_rxnfc is an exception. */ switch (ethcmd) { default: break; case ETHTOOL_GRXCLSRLALL: /* Buffer size is variable */ if (get_user(rule_cnt, &compat_rxnfc->rule_cnt)) return -EFAULT; if (rule_cnt > KMALLOC_MAX_SIZE / sizeof(u32)) return -ENOMEM; buf_size += rule_cnt * sizeof(u32); /* fall through */ case ETHTOOL_GRXRINGS: case ETHTOOL_GRXCLSRLCNT: case ETHTOOL_GRXCLSRULE: |
55664f324 ethtool: Allow dr... |
2656 |
case ETHTOOL_SRXCLSRLINS: |
3a7da39d1 ethtool: Compat h... |
2657 2658 2659 |
convert_out = true; /* fall through */ case ETHTOOL_SRXCLSRLDEL: |
3a7da39d1 ethtool: Compat h... |
2660 2661 |
buf_size += sizeof(struct ethtool_rxnfc); convert_in = true; |
44c02a2c3 dev_ioctl(): move... |
2662 |
rxnfc = compat_alloc_user_space(buf_size); |
3a7da39d1 ethtool: Compat h... |
2663 2664 |
break; } |
44c02a2c3 dev_ioctl(): move... |
2665 |
if (copy_from_user(&ifr.ifr_name, &ifr32->ifr_name, IFNAMSIZ)) |
7a229387d net: copy socket ... |
2666 |
return -EFAULT; |
44c02a2c3 dev_ioctl(): move... |
2667 |
ifr.ifr_data = convert_in ? rxnfc : (void __user *)compat_rxnfc; |
7a229387d net: copy socket ... |
2668 |
|
3a7da39d1 ethtool: Compat h... |
2669 |
if (convert_in) { |
127fe533a v3 ethtool: add n... |
2670 |
/* We expect there to be holes between fs.m_ext and |
3a7da39d1 ethtool: Compat h... |
2671 2672 |
* fs.ring_cookie and at the end of fs, but nowhere else. */ |
127fe533a v3 ethtool: add n... |
2673 2674 2675 2676 |
BUILD_BUG_ON(offsetof(struct compat_ethtool_rxnfc, fs.m_ext) + sizeof(compat_rxnfc->fs.m_ext) != offsetof(struct ethtool_rxnfc, fs.m_ext) + sizeof(rxnfc->fs.m_ext)); |
3a7da39d1 ethtool: Compat h... |
2677 2678 2679 2680 2681 2682 2683 |
BUILD_BUG_ON( offsetof(struct compat_ethtool_rxnfc, fs.location) - offsetof(struct compat_ethtool_rxnfc, fs.ring_cookie) != offsetof(struct ethtool_rxnfc, fs.location) - offsetof(struct ethtool_rxnfc, fs.ring_cookie)); if (copy_in_user(rxnfc, compat_rxnfc, |
954b12445 ethtool: fix spar... |
2684 2685 |
(void __user *)(&rxnfc->fs.m_ext + 1) - (void __user *)rxnfc) || |
3a7da39d1 ethtool: Compat h... |
2686 2687 |
copy_in_user(&rxnfc->fs.ring_cookie, &compat_rxnfc->fs.ring_cookie, |
954b12445 ethtool: fix spar... |
2688 |
(void __user *)(&rxnfc->fs.location + 1) - |
b6168562c net: socket: fix ... |
2689 2690 2691 2692 2693 2694 2695 2696 |
(void __user *)&rxnfc->fs.ring_cookie)) return -EFAULT; if (ethcmd == ETHTOOL_GRXCLSRLALL) { if (put_user(rule_cnt, &rxnfc->rule_cnt)) return -EFAULT; } else if (copy_in_user(&rxnfc->rule_cnt, &compat_rxnfc->rule_cnt, sizeof(rxnfc->rule_cnt))) |
3a7da39d1 ethtool: Compat h... |
2697 2698 |
return -EFAULT; } |
44c02a2c3 dev_ioctl(): move... |
2699 |
ret = dev_ioctl(net, SIOCETHTOOL, &ifr, NULL); |
3a7da39d1 ethtool: Compat h... |
2700 2701 2702 2703 2704 |
if (ret) return ret; if (convert_out) { if (copy_in_user(compat_rxnfc, rxnfc, |
954b12445 ethtool: fix spar... |
2705 2706 |
(const void __user *)(&rxnfc->fs.m_ext + 1) - (const void __user *)rxnfc) || |
3a7da39d1 ethtool: Compat h... |
2707 2708 |
copy_in_user(&compat_rxnfc->fs.ring_cookie, &rxnfc->fs.ring_cookie, |
954b12445 ethtool: fix spar... |
2709 2710 |
(const void __user *)(&rxnfc->fs.location + 1) - (const void __user *)&rxnfc->fs.ring_cookie) || |
3a7da39d1 ethtool: Compat h... |
2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 |
copy_in_user(&compat_rxnfc->rule_cnt, &rxnfc->rule_cnt, sizeof(rxnfc->rule_cnt))) return -EFAULT; if (ethcmd == ETHTOOL_GRXCLSRLALL) { /* As an optimisation, we only copy the actual * number of rules that the underlying * function returned. Since Mallory might * change the rule count in user memory, we * check that it is less than the rule count * originally given (as the user buffer size), * which has been range-checked. */ if (get_user(actual_rule_cnt, &rxnfc->rule_cnt)) return -EFAULT; if (actual_rule_cnt < rule_cnt) rule_cnt = actual_rule_cnt; if (copy_in_user(&compat_rxnfc->rule_locs[0], &rxnfc->rule_locs[0], rule_cnt * sizeof(u32))) return -EFAULT; } } return 0; |
7a229387d net: copy socket ... |
2736 |
} |
7a50a240c net/compat_ioctl:... |
2737 2738 |
static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32) { |
7a50a240c net/compat_ioctl:... |
2739 |
compat_uptr_t uptr32; |
44c02a2c3 dev_ioctl(): move... |
2740 2741 2742 |
struct ifreq ifr; void __user *saved; int err; |
7a50a240c net/compat_ioctl:... |
2743 |
|
44c02a2c3 dev_ioctl(): move... |
2744 |
if (copy_from_user(&ifr, uifr32, sizeof(struct compat_ifreq))) |
7a50a240c net/compat_ioctl:... |
2745 2746 2747 2748 |
return -EFAULT; if (get_user(uptr32, &uifr32->ifr_settings.ifs_ifsu)) return -EFAULT; |
44c02a2c3 dev_ioctl(): move... |
2749 2750 |
saved = ifr.ifr_settings.ifs_ifsu.raw_hdlc; ifr.ifr_settings.ifs_ifsu.raw_hdlc = compat_ptr(uptr32); |
7a229387d net: copy socket ... |
2751 |
|
44c02a2c3 dev_ioctl(): move... |
2752 2753 2754 2755 2756 |
err = dev_ioctl(net, SIOCWANDEV, &ifr, NULL); if (!err) { ifr.ifr_settings.ifs_ifsu.raw_hdlc = saved; if (copy_to_user(uifr32, &ifr, sizeof(struct compat_ifreq))) err = -EFAULT; |
ccbd6a5a4 net: Remove unnec... |
2757 |
} |
44c02a2c3 dev_ioctl(): move... |
2758 |
return err; |
7a229387d net: copy socket ... |
2759 |
} |
590d4693f net/compat: Merge... |
2760 2761 |
/* Handle ioctls that use ifreq::ifr_data and just need struct ifreq converted */ static int compat_ifr_data_ioctl(struct net *net, unsigned int cmd, |
6b96018b2 compat: move sock... |
2762 |
struct compat_ifreq __user *u_ifreq32) |
7a229387d net: copy socket ... |
2763 |
{ |
44c02a2c3 dev_ioctl(): move... |
2764 |
struct ifreq ifreq; |
7a229387d net: copy socket ... |
2765 |
u32 data32; |
44c02a2c3 dev_ioctl(): move... |
2766 |
if (copy_from_user(ifreq.ifr_name, u_ifreq32->ifr_name, IFNAMSIZ)) |
7a229387d net: copy socket ... |
2767 |
return -EFAULT; |
44c02a2c3 dev_ioctl(): move... |
2768 |
if (get_user(data32, &u_ifreq32->ifr_data)) |
7a229387d net: copy socket ... |
2769 |
return -EFAULT; |
44c02a2c3 dev_ioctl(): move... |
2770 |
ifreq.ifr_data = compat_ptr(data32); |
7a229387d net: copy socket ... |
2771 |
|
44c02a2c3 dev_ioctl(): move... |
2772 |
return dev_ioctl(net, cmd, &ifreq, NULL); |
7a229387d net: copy socket ... |
2773 |
} |
50021ba98 Revert "kill dev_... |
2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 |
static int compat_ifreq_ioctl(struct net *net, struct socket *sock, unsigned int cmd, struct compat_ifreq __user *uifr32) { struct ifreq __user *uifr; int err; /* Handle the fact that while struct ifreq has the same *layout* on * 32/64 for everything but ifreq::ifru_ifmap and ifreq::ifru_data, * which are handled elsewhere, it still has different *size* due to * ifreq::ifru_ifmap (which is 16 bytes on 32 bit, 24 bytes on 64-bit, * resulting in struct ifreq being 32 and 40 bytes respectively). * As a result, if the struct happens to be at the end of a page and * the next page isn't readable/writable, we get a fault. To prevent * that, copy back and forth to the full size. */ uifr = compat_alloc_user_space(sizeof(*uifr)); if (copy_in_user(uifr, uifr32, sizeof(*uifr32))) return -EFAULT; err = sock_do_ioctl(net, sock, cmd, (unsigned long)uifr); if (!err) { switch (cmd) { case SIOCGIFFLAGS: case SIOCGIFMETRIC: case SIOCGIFMTU: case SIOCGIFMEM: case SIOCGIFHWADDR: case SIOCGIFINDEX: case SIOCGIFADDR: case SIOCGIFBRDADDR: case SIOCGIFDSTADDR: case SIOCGIFNETMASK: case SIOCGIFPFLAGS: case SIOCGIFTXQLEN: case SIOCGMIIPHY: case SIOCGMIIREG: |
e37c96c11 net: socket: fix ... |
2813 |
case SIOCGIFNAME: |
50021ba98 Revert "kill dev_... |
2814 2815 2816 2817 2818 2819 2820 |
if (copy_in_user(uifr32, uifr, sizeof(*uifr32))) err = -EFAULT; break; } } return err; } |
a2116ed22 net/compat: fix d... |
2821 2822 2823 2824 2825 |
static int compat_sioc_ifmap(struct net *net, unsigned int cmd, struct compat_ifreq __user *uifr32) { struct ifreq ifr; struct compat_ifmap __user *uifmap32; |
a2116ed22 net/compat: fix d... |
2826 2827 2828 2829 |
int err; uifmap32 = &uifr32->ifr_ifru.ifru_map; err = copy_from_user(&ifr, uifr32, sizeof(ifr.ifr_name)); |
3ddc5b46a kernel-wide: fix ... |
2830 2831 2832 2833 2834 2835 |
err |= get_user(ifr.ifr_map.mem_start, &uifmap32->mem_start); err |= get_user(ifr.ifr_map.mem_end, &uifmap32->mem_end); err |= get_user(ifr.ifr_map.base_addr, &uifmap32->base_addr); err |= get_user(ifr.ifr_map.irq, &uifmap32->irq); err |= get_user(ifr.ifr_map.dma, &uifmap32->dma); err |= get_user(ifr.ifr_map.port, &uifmap32->port); |
a2116ed22 net/compat: fix d... |
2836 2837 |
if (err) return -EFAULT; |
44c02a2c3 dev_ioctl(): move... |
2838 |
err = dev_ioctl(net, cmd, &ifr, NULL); |
a2116ed22 net/compat: fix d... |
2839 2840 2841 |
if (cmd == SIOCGIFMAP && !err) { err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name)); |
3ddc5b46a kernel-wide: fix ... |
2842 2843 2844 2845 2846 2847 |
err |= put_user(ifr.ifr_map.mem_start, &uifmap32->mem_start); err |= put_user(ifr.ifr_map.mem_end, &uifmap32->mem_end); err |= put_user(ifr.ifr_map.base_addr, &uifmap32->base_addr); err |= put_user(ifr.ifr_map.irq, &uifmap32->irq); err |= put_user(ifr.ifr_map.dma, &uifmap32->dma); err |= put_user(ifr.ifr_map.port, &uifmap32->port); |
a2116ed22 net/compat: fix d... |
2848 2849 2850 2851 2852 |
if (err) err = -EFAULT; } return err; } |
7a229387d net: copy socket ... |
2853 |
struct rtentry32 { |
c6d409cfd From abbffa2aa9bd... |
2854 |
u32 rt_pad1; |
7a229387d net: copy socket ... |
2855 2856 2857 |
struct sockaddr rt_dst; /* target address */ struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ struct sockaddr rt_genmask; /* target network mask (IP) */ |
c6d409cfd From abbffa2aa9bd... |
2858 2859 2860 2861 2862 2863 2864 |
unsigned short rt_flags; short rt_pad2; u32 rt_pad3; unsigned char rt_tos; unsigned char rt_class; short rt_pad4; short rt_metric; /* +1 for binary compatibility! */ |
7a229387d net: copy socket ... |
2865 |
/* char * */ u32 rt_dev; /* forcing the device at add */ |
c6d409cfd From abbffa2aa9bd... |
2866 2867 |
u32 rt_mtu; /* per route MTU/Window */ u32 rt_window; /* Window clamping */ |
7a229387d net: copy socket ... |
2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 |
unsigned short rt_irtt; /* Initial RTT */ }; struct in6_rtmsg32 { struct in6_addr rtmsg_dst; struct in6_addr rtmsg_src; struct in6_addr rtmsg_gateway; u32 rtmsg_type; u16 rtmsg_dst_len; u16 rtmsg_src_len; u32 rtmsg_metric; u32 rtmsg_info; u32 rtmsg_flags; s32 rtmsg_ifindex; }; |
6b96018b2 compat: move sock... |
2883 2884 |
static int routing_ioctl(struct net *net, struct socket *sock, unsigned int cmd, void __user *argp) |
7a229387d net: copy socket ... |
2885 2886 2887 2888 2889 2890 2891 2892 |
{ int ret; void *r = NULL; struct in6_rtmsg r6; struct rtentry r4; char devname[16]; u32 rtdev; mm_segment_t old_fs = get_fs(); |
6b96018b2 compat: move sock... |
2893 2894 |
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */ struct in6_rtmsg32 __user *ur6 = argp; |
c6d409cfd From abbffa2aa9bd... |
2895 |
ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst), |
7a229387d net: copy socket ... |
2896 |
3 * sizeof(struct in6_addr)); |
3ddc5b46a kernel-wide: fix ... |
2897 2898 2899 2900 2901 2902 2903 |
ret |= get_user(r6.rtmsg_type, &(ur6->rtmsg_type)); ret |= get_user(r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len)); ret |= get_user(r6.rtmsg_src_len, &(ur6->rtmsg_src_len)); ret |= get_user(r6.rtmsg_metric, &(ur6->rtmsg_metric)); ret |= get_user(r6.rtmsg_info, &(ur6->rtmsg_info)); ret |= get_user(r6.rtmsg_flags, &(ur6->rtmsg_flags)); ret |= get_user(r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex)); |
7a229387d net: copy socket ... |
2904 2905 2906 |
r = (void *) &r6; } else { /* ipv4 */ |
6b96018b2 compat: move sock... |
2907 |
struct rtentry32 __user *ur4 = argp; |
c6d409cfd From abbffa2aa9bd... |
2908 |
ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst), |
7a229387d net: copy socket ... |
2909 |
3 * sizeof(struct sockaddr)); |
3ddc5b46a kernel-wide: fix ... |
2910 2911 2912 2913 2914 2915 |
ret |= get_user(r4.rt_flags, &(ur4->rt_flags)); ret |= get_user(r4.rt_metric, &(ur4->rt_metric)); ret |= get_user(r4.rt_mtu, &(ur4->rt_mtu)); ret |= get_user(r4.rt_window, &(ur4->rt_window)); ret |= get_user(r4.rt_irtt, &(ur4->rt_irtt)); ret |= get_user(rtdev, &(ur4->rt_dev)); |
7a229387d net: copy socket ... |
2916 |
if (rtdev) { |
c6d409cfd From abbffa2aa9bd... |
2917 |
ret |= copy_from_user(devname, compat_ptr(rtdev), 15); |
c3f52ae6a socket: suppress ... |
2918 2919 |
r4.rt_dev = (char __user __force *)devname; devname[15] = 0; |
7a229387d net: copy socket ... |
2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 |
} else r4.rt_dev = NULL; r = (void *) &r4; } if (ret) { ret = -EFAULT; goto out; } |
c6d409cfd From abbffa2aa9bd... |
2930 |
set_fs(KERNEL_DS); |
99f3c8966 Revert "socket: f... |
2931 |
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r); |
c6d409cfd From abbffa2aa9bd... |
2932 |
set_fs(old_fs); |
7a229387d net: copy socket ... |
2933 2934 |
out: |
7a229387d net: copy socket ... |
2935 2936 2937 2938 2939 |
return ret; } /* Since old style bridge ioctl's endup using SIOCDEVPRIVATE * for some operations; this forces use of the newer bridge-utils that |
25985edce Fix common misspe... |
2940 |
* use compatible ioctls |
7a229387d net: copy socket ... |
2941 |
*/ |
6b96018b2 compat: move sock... |
2942 |
static int old_bridge_ioctl(compat_ulong_t __user *argp) |
7a229387d net: copy socket ... |
2943 |
{ |
6b96018b2 compat: move sock... |
2944 |
compat_ulong_t tmp; |
7a229387d net: copy socket ... |
2945 |
|
6b96018b2 compat: move sock... |
2946 |
if (get_user(tmp, argp)) |
7a229387d net: copy socket ... |
2947 2948 2949 2950 2951 |
return -EFAULT; if (tmp == BRCTL_GET_VERSION) return BRCTL_VERSION + 1; return -EINVAL; } |
6b96018b2 compat: move sock... |
2952 2953 2954 2955 2956 2957 |
static int compat_sock_ioctl_trans(struct file *file, struct socket *sock, unsigned int cmd, unsigned long arg) { void __user *argp = compat_ptr(arg); struct sock *sk = sock->sk; struct net *net = sock_net(sk); |
7a229387d net: copy socket ... |
2958 |
|
6b96018b2 compat: move sock... |
2959 |
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) |
590d4693f net/compat: Merge... |
2960 |
return compat_ifr_data_ioctl(net, cmd, argp); |
6b96018b2 compat: move sock... |
2961 2962 2963 2964 2965 |
switch (cmd) { case SIOCSIFBR: case SIOCGIFBR: return old_bridge_ioctl(argp); |
6b96018b2 compat: move sock... |
2966 |
case SIOCGIFCONF: |
36fd633ec net: separate SIO... |
2967 |
return compat_dev_ifconf(net, argp); |
6b96018b2 compat: move sock... |
2968 2969 |
case SIOCETHTOOL: return ethtool_ioctl(net, argp); |
7a50a240c net/compat_ioctl:... |
2970 2971 |
case SIOCWANDEV: return compat_siocwandev(net, argp); |
a2116ed22 net/compat: fix d... |
2972 2973 2974 |
case SIOCGIFMAP: case SIOCSIFMAP: return compat_sioc_ifmap(net, cmd, argp); |
6b96018b2 compat: move sock... |
2975 2976 2977 2978 2979 2980 2981 |
case SIOCADDRT: case SIOCDELRT: return routing_ioctl(net, sock, cmd, argp); case SIOCGSTAMP: return do_siocgstamp(net, sock, cmd, argp); case SIOCGSTAMPNS: return do_siocgstampns(net, sock, cmd, argp); |
590d4693f net/compat: Merge... |
2982 2983 |
case SIOCBONDSLAVEINFOQUERY: case SIOCBONDINFOQUERY: |
a2116ed22 net/compat: fix d... |
2984 |
case SIOCSHWTSTAMP: |
fd468c74b net_tstamp: Add S... |
2985 |
case SIOCGHWTSTAMP: |
590d4693f net/compat: Merge... |
2986 |
return compat_ifr_data_ioctl(net, cmd, argp); |
6b96018b2 compat: move sock... |
2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 |
case FIOSETOWN: case SIOCSPGRP: case FIOGETOWN: case SIOCGPGRP: case SIOCBRADDBR: case SIOCBRDELBR: case SIOCGIFVLAN: case SIOCSIFVLAN: case SIOCADDDLCI: case SIOCDELDLCI: |
c62cce2ca net: add an ioctl... |
2998 |
case SIOCGSKNS: |
6b96018b2 compat: move sock... |
2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 |
return sock_ioctl(file, cmd, arg); case SIOCGIFFLAGS: case SIOCSIFFLAGS: case SIOCGIFMETRIC: case SIOCSIFMETRIC: case SIOCGIFMTU: case SIOCSIFMTU: case SIOCGIFMEM: case SIOCSIFMEM: case SIOCGIFHWADDR: case SIOCSIFHWADDR: case SIOCADDMULTI: case SIOCDELMULTI: case SIOCGIFINDEX: |
6b96018b2 compat: move sock... |
3014 3015 3016 |
case SIOCGIFADDR: case SIOCSIFADDR: case SIOCSIFHWBROADCAST: |
6b96018b2 compat: move sock... |
3017 |
case SIOCDIFADDR: |
6b96018b2 compat: move sock... |
3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 |
case SIOCGIFBRDADDR: case SIOCSIFBRDADDR: case SIOCGIFDSTADDR: case SIOCSIFDSTADDR: case SIOCGIFNETMASK: case SIOCSIFNETMASK: case SIOCSIFPFLAGS: case SIOCGIFPFLAGS: case SIOCGIFTXQLEN: case SIOCSIFTXQLEN: case SIOCBRADDIF: case SIOCBRDELIF: |
e37c96c11 net: socket: fix ... |
3030 |
case SIOCGIFNAME: |
9177efd39 net, compat_ioctl... |
3031 3032 3033 3034 |
case SIOCSIFNAME: case SIOCGMIIPHY: case SIOCGMIIREG: case SIOCSMIIREG: |
7aab1e6d9 net: socket: make... |
3035 3036 3037 3038 |
case SIOCBONDENSLAVE: case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: case SIOCBONDCHANGEACTIVE: |
50021ba98 Revert "kill dev_... |
3039 |
return compat_ifreq_ioctl(net, sock, cmd, argp); |
6b96018b2 compat: move sock... |
3040 3041 3042 |
case SIOCSARP: case SIOCGARP: case SIOCDARP: |
6b96018b2 compat: move sock... |
3043 |
case SIOCATMARK: |
99f3c8966 Revert "socket: f... |
3044 |
return sock_do_ioctl(net, sock, cmd, arg); |
9177efd39 net, compat_ioctl... |
3045 |
} |
6b96018b2 compat: move sock... |
3046 3047 |
return -ENOIOCTLCMD; } |
7a229387d net: copy socket ... |
3048 |
|
95c961747 net: cleanup unsi... |
3049 |
static long compat_sock_ioctl(struct file *file, unsigned int cmd, |
89bddce58 [NET] socket: cod... |
3050 |
unsigned long arg) |
89bbfc95d [NET]: allow 32 b... |
3051 3052 3053 |
{ struct socket *sock = file->private_data; int ret = -ENOIOCTLCMD; |
87de87d5e wext: Dispatch an... |
3054 3055 3056 3057 3058 |
struct sock *sk; struct net *net; sk = sock->sk; net = sock_net(sk); |
89bbfc95d [NET]: allow 32 b... |
3059 3060 3061 |
if (sock->ops->compat_ioctl) ret = sock->ops->compat_ioctl(sock, cmd, arg); |
87de87d5e wext: Dispatch an... |
3062 3063 3064 |
if (ret == -ENOIOCTLCMD && (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)) ret = compat_wext_handle_ioctl(net, cmd, arg); |
6b96018b2 compat: move sock... |
3065 3066 |
if (ret == -ENOIOCTLCMD) ret = compat_sock_ioctl_trans(file, sock, cmd, arg); |
89bbfc95d [NET]: allow 32 b... |
3067 3068 3069 |
return ret; } #endif |
ac5a488ef [NET]: Round out ... |
3070 3071 3072 3073 |
int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen) { return sock->ops->bind(sock, addr, addrlen); } |
c6d409cfd From abbffa2aa9bd... |
3074 |
EXPORT_SYMBOL(kernel_bind); |
ac5a488ef [NET]: Round out ... |
3075 3076 3077 3078 3079 |
int kernel_listen(struct socket *sock, int backlog) { return sock->ops->listen(sock, backlog); } |
c6d409cfd From abbffa2aa9bd... |
3080 |
EXPORT_SYMBOL(kernel_listen); |
ac5a488ef [NET]: Round out ... |
3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 |
int kernel_accept(struct socket *sock, struct socket **newsock, int flags) { struct sock *sk = sock->sk; int err; err = sock_create_lite(sk->sk_family, sk->sk_type, sk->sk_protocol, newsock); if (err < 0) goto done; |
cdfbabfb2 net: Work around ... |
3091 |
err = sock->ops->accept(sock, *newsock, flags, true); |
ac5a488ef [NET]: Round out ... |
3092 3093 |
if (err < 0) { sock_release(*newsock); |
fa8705b00 [NET]: sanitize k... |
3094 |
*newsock = NULL; |
ac5a488ef [NET]: Round out ... |
3095 3096 3097 3098 |
goto done; } (*newsock)->ops = sock->ops; |
1b08534e5 net: Fix module r... |
3099 |
__module_get((*newsock)->ops->owner); |
ac5a488ef [NET]: Round out ... |
3100 3101 3102 3103 |
done: return err; } |
c6d409cfd From abbffa2aa9bd... |
3104 |
EXPORT_SYMBOL(kernel_accept); |
ac5a488ef [NET]: Round out ... |
3105 3106 |
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen, |
4768fbcbc [NET]: Fix whites... |
3107 |
int flags) |
ac5a488ef [NET]: Round out ... |
3108 3109 3110 |
{ return sock->ops->connect(sock, addr, addrlen, flags); } |
c6d409cfd From abbffa2aa9bd... |
3111 |
EXPORT_SYMBOL(kernel_connect); |
ac5a488ef [NET]: Round out ... |
3112 |
|
9b2c45d47 net: make getname... |
3113 |
int kernel_getsockname(struct socket *sock, struct sockaddr *addr) |
ac5a488ef [NET]: Round out ... |
3114 |
{ |
9b2c45d47 net: make getname... |
3115 |
return sock->ops->getname(sock, addr, 0); |
ac5a488ef [NET]: Round out ... |
3116 |
} |
c6d409cfd From abbffa2aa9bd... |
3117 |
EXPORT_SYMBOL(kernel_getsockname); |
ac5a488ef [NET]: Round out ... |
3118 |
|
9b2c45d47 net: make getname... |
3119 |
int kernel_getpeername(struct socket *sock, struct sockaddr *addr) |
ac5a488ef [NET]: Round out ... |
3120 |
{ |
9b2c45d47 net: make getname... |
3121 |
return sock->ops->getname(sock, addr, 1); |
ac5a488ef [NET]: Round out ... |
3122 |
} |
c6d409cfd From abbffa2aa9bd... |
3123 |
EXPORT_SYMBOL(kernel_getpeername); |
ac5a488ef [NET]: Round out ... |
3124 3125 3126 3127 3128 |
int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen) { mm_segment_t oldfs = get_fs(); |
fb8621bb6 net: remove addre... |
3129 3130 |
char __user *uoptval; int __user *uoptlen; |
ac5a488ef [NET]: Round out ... |
3131 |
int err; |
fb8621bb6 net: remove addre... |
3132 3133 |
uoptval = (char __user __force *) optval; uoptlen = (int __user __force *) optlen; |
ac5a488ef [NET]: Round out ... |
3134 3135 |
set_fs(KERNEL_DS); if (level == SOL_SOCKET) |
fb8621bb6 net: remove addre... |
3136 |
err = sock_getsockopt(sock, level, optname, uoptval, uoptlen); |
ac5a488ef [NET]: Round out ... |
3137 |
else |
fb8621bb6 net: remove addre... |
3138 3139 |
err = sock->ops->getsockopt(sock, level, optname, uoptval, uoptlen); |
ac5a488ef [NET]: Round out ... |
3140 3141 3142 |
set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3143 |
EXPORT_SYMBOL(kernel_getsockopt); |
ac5a488ef [NET]: Round out ... |
3144 3145 |
int kernel_setsockopt(struct socket *sock, int level, int optname, |
b7058842c net: Make setsock... |
3146 |
char *optval, unsigned int optlen) |
ac5a488ef [NET]: Round out ... |
3147 3148 |
{ mm_segment_t oldfs = get_fs(); |
fb8621bb6 net: remove addre... |
3149 |
char __user *uoptval; |
ac5a488ef [NET]: Round out ... |
3150 |
int err; |
fb8621bb6 net: remove addre... |
3151 |
uoptval = (char __user __force *) optval; |
ac5a488ef [NET]: Round out ... |
3152 3153 |
set_fs(KERNEL_DS); if (level == SOL_SOCKET) |
fb8621bb6 net: remove addre... |
3154 |
err = sock_setsockopt(sock, level, optname, uoptval, optlen); |
ac5a488ef [NET]: Round out ... |
3155 |
else |
fb8621bb6 net: remove addre... |
3156 |
err = sock->ops->setsockopt(sock, level, optname, uoptval, |
ac5a488ef [NET]: Round out ... |
3157 3158 3159 3160 |
optlen); set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3161 |
EXPORT_SYMBOL(kernel_setsockopt); |
ac5a488ef [NET]: Round out ... |
3162 3163 3164 3165 3166 3167 3168 3169 3170 |
int kernel_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags) { if (sock->ops->sendpage) return sock->ops->sendpage(sock, page, offset, size, flags); return sock_no_sendpage(sock, page, offset, size, flags); } |
c6d409cfd From abbffa2aa9bd... |
3171 |
EXPORT_SYMBOL(kernel_sendpage); |
ac5a488ef [NET]: Round out ... |
3172 |
|
306b13eb3 proto_ops: Add lo... |
3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 |
int kernel_sendpage_locked(struct sock *sk, struct page *page, int offset, size_t size, int flags) { struct socket *sock = sk->sk_socket; if (sock->ops->sendpage_locked) return sock->ops->sendpage_locked(sk, page, offset, size, flags); return sock_no_sendpage_locked(sk, page, offset, size, flags); } EXPORT_SYMBOL(kernel_sendpage_locked); |
91cf45f02 [NET]: Add the he... |
3185 3186 3187 3188 |
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how) { return sock->ops->shutdown(sock, how); } |
91cf45f02 [NET]: Add the he... |
3189 |
EXPORT_SYMBOL(kernel_sock_shutdown); |
113c30759 New kernel functi... |
3190 3191 3192 3193 |
/* This routine returns the IP overhead imposed by a socket i.e. * the length of the underlying IP header, depending on whether * this is an IPv4 or IPv6 socket and the length from IP options turned |
57240d007 l2tp: device MTU ... |
3194 |
* on at the socket. Assumes that the caller has a lock on the socket. |
113c30759 New kernel functi... |
3195 3196 3197 3198 3199 3200 |
*/ u32 kernel_sock_ip_overhead(struct sock *sk) { struct inet_sock *inet; struct ip_options_rcu *opt; u32 overhead = 0; |
113c30759 New kernel functi... |
3201 3202 3203 3204 3205 3206 3207 |
#if IS_ENABLED(CONFIG_IPV6) struct ipv6_pinfo *np; struct ipv6_txoptions *optv6 = NULL; #endif /* IS_ENABLED(CONFIG_IPV6) */ if (!sk) return overhead; |
113c30759 New kernel functi... |
3208 3209 3210 3211 3212 |
switch (sk->sk_family) { case AF_INET: inet = inet_sk(sk); overhead += sizeof(struct iphdr); opt = rcu_dereference_protected(inet->inet_opt, |
614d79c09 socket: fix set n... |
3213 |
sock_owned_by_user(sk)); |
113c30759 New kernel functi... |
3214 3215 3216 3217 3218 3219 3220 3221 3222 |
if (opt) overhead += opt->opt.optlen; return overhead; #if IS_ENABLED(CONFIG_IPV6) case AF_INET6: np = inet6_sk(sk); overhead += sizeof(struct ipv6hdr); if (np) optv6 = rcu_dereference_protected(np->opt, |
614d79c09 socket: fix set n... |
3223 |
sock_owned_by_user(sk)); |
113c30759 New kernel functi... |
3224 3225 3226 3227 3228 3229 3230 3231 3232 |
if (optv6) overhead += (optv6->opt_flen + optv6->opt_nflen); return overhead; #endif /* IS_ENABLED(CONFIG_IPV6) */ default: /* Returns 0 overhead if the socket is not ipv4 or ipv6 */ return overhead; } } EXPORT_SYMBOL(kernel_sock_ip_overhead); |