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net/socket.c
79.5 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 <asm/uaccess.h> #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> #include <linux/atalk.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); static unsigned int 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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/* * Statistics counters of the socket lists */ |
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static DEFINE_PER_CPU(int, sockets_in_use); |
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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 __read_mostly; |
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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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RCU_INIT_POINTER(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; |
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struct socket_wq *wq; |
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ei = container_of(inode, struct socket_alloc, vfs_inode); |
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wq = rcu_dereference_protected(ei->socket.wq, 1); |
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kfree_rcu(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 int init_inodecache(void) { sock_inode_cachep = kmem_cache_create("sock_inode_cache", |
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sizeof(struct socket_alloc), 0, (SLAB_HWCACHE_ALIGN | SLAB_RECLAIM_ACCOUNT | |
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SLAB_MEM_SPREAD | SLAB_ACCOUNT), |
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init_once); |
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if (sock_inode_cachep == NULL) return -ENOMEM; return 0; } |
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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 struct dentry *sockfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { return mount_pseudo(fs_type, "socket:", &sockfs_ops, &sockfs_dentry_operations, SOCKFS_MAGIC); } 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 qstr name = { .name = "" }; |
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struct path path; |
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struct file *file; |
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|
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if (dname) { name.name = dname; name.len = strlen(name.name); } else if (sock->sk) { name.name = sock->sk->sk_prot_creator->name; name.len = strlen(name.name); } |
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path.dentry = d_alloc_pseudo(sock_mnt->mnt_sb, &name); |
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if (unlikely(!path.dentry)) return ERR_PTR(-ENOMEM); |
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path.mnt = mntget(sock_mnt); |
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|
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d_instantiate(path.dentry, SOCK_INODE(sock)); |
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|
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file = alloc_file(&path, FMODE_READ | FMODE_WRITE, |
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&socket_file_ops); |
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if (IS_ERR(file)) { |
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/* drop dentry, keep inode */ |
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ihold(d_inode(path.dentry)); |
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path_put(&path); |
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return file; |
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} sock->file = file; |
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file->f_flags = O_RDWR | (flags & O_NONBLOCK); |
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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); if (unlikely(fd < 0)) return fd; |
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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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{ |
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if (file->f_op == &socket_file_ops) return file->private_data; /* set in sock_map_fd */ |
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*err = -ENOTSOCK; return NULL; |
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} |
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EXPORT_SYMBOL(sock_from_file); |
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|
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/** |
c6d409cfd From abbffa2aa9bd... |
401 |
* sockfd_lookup - Go from a file number to its socket slot |
1da177e4c Linux-2.6.12-rc2 |
402 403 404 405 406 407 408 409 410 411 412 413 414 415 |
* @fd: file handle * @err: pointer to an error code return * * The file handle passed in is locked and the socket it is bound * too is returned. If an error occurs the err pointer is overwritten * 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 |
416 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
417 418 |
file = fget(fd); if (!file) { |
1da177e4c Linux-2.6.12-rc2 |
419 420 421 |
*err = -EBADF; return NULL; } |
89bddce58 [NET] socket: cod... |
422 |
|
6cb153cab [NET]: use fget_l... |
423 424 |
sock = sock_from_file(file, err); if (!sock) |
1da177e4c Linux-2.6.12-rc2 |
425 |
fput(file); |
6cb153cab [NET]: use fget_l... |
426 427 |
return sock; } |
c6d409cfd From abbffa2aa9bd... |
428 |
EXPORT_SYMBOL(sockfd_lookup); |
1da177e4c Linux-2.6.12-rc2 |
429 |
|
6cb153cab [NET]: use fget_l... |
430 431 |
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed) { |
00e188ef6 sockfd_lookup_lig... |
432 |
struct fd f = fdget(fd); |
6cb153cab [NET]: use fget_l... |
433 |
struct socket *sock; |
3672558c6 [NET]: sockfd_loo... |
434 |
*err = -EBADF; |
00e188ef6 sockfd_lookup_lig... |
435 436 437 438 |
if (f.file) { sock = sock_from_file(f.file, err); if (likely(sock)) { *fput_needed = f.flags; |
6cb153cab [NET]: use fget_l... |
439 |
return sock; |
00e188ef6 sockfd_lookup_lig... |
440 441 |
} fdput(f); |
1da177e4c Linux-2.6.12-rc2 |
442 |
} |
6cb153cab [NET]: use fget_l... |
443 |
return NULL; |
1da177e4c Linux-2.6.12-rc2 |
444 |
} |
600e17792 net: Providing pr... |
445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 |
#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 ssize_t sockfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size) { const char *proto_name; size_t proto_size; int error; error = -ENODATA; if (!strncmp(name, XATTR_NAME_SOCKPROTONAME, XATTR_NAME_SOCKPROTONAME_LEN)) { proto_name = dentry->d_name.name; proto_size = strlen(proto_name); if (value) { error = -ERANGE; if (proto_size + 1 > size) goto out; strncpy(value, proto_name, proto_size + 1); } error = proto_size + 1; } out: return error; } 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... |
479 |
len = security_inode_listsecurity(d_inode(dentry), buffer, size); |
600e17792 net: Providing pr... |
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 |
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; } static const struct inode_operations sockfs_inode_ops = { .getxattr = sockfs_getxattr, .listxattr = sockfs_listxattr, }; |
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); |
29a020d35 [PATCH] net: kmem... |
522 |
kmemcheck_annotate_bitfield(sock, type); |
85fe4025c fs: do not assign... |
523 |
inode->i_ino = get_next_ino(); |
89bddce58 [NET] socket: cod... |
524 |
inode->i_mode = S_IFSOCK | S_IRWXUGO; |
8192b0c48 CRED: Wrap task c... |
525 526 |
inode->i_uid = current_fsuid(); inode->i_gid = current_fsgid(); |
600e17792 net: Providing pr... |
527 |
inode->i_op = &sockfs_inode_ops; |
1da177e4c Linux-2.6.12-rc2 |
528 |
|
19e8d69c5 net: replace perc... |
529 |
this_cpu_add(sockets_in_use, 1); |
1da177e4c Linux-2.6.12-rc2 |
530 531 |
return sock; } |
f4a00aacd net: Make sock_al... |
532 |
EXPORT_SYMBOL(sock_alloc); |
1da177e4c Linux-2.6.12-rc2 |
533 |
|
1da177e4c Linux-2.6.12-rc2 |
534 535 536 537 538 539 |
/** * 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... |
540 |
* an inode not a file. |
1da177e4c Linux-2.6.12-rc2 |
541 |
*/ |
89bddce58 [NET] socket: cod... |
542 |
|
1da177e4c Linux-2.6.12-rc2 |
543 544 545 546 547 548 549 550 551 |
void sock_release(struct socket *sock) { if (sock->ops) { struct module *owner = sock->ops->owner; sock->ops->release(sock); sock->ops = NULL; module_put(owner); } |
eaefd1105 net: add __rcu an... |
552 |
if (rcu_dereference_protected(sock->wq, 1)->fasync_list) |
3410f22ea socket: replace s... |
553 554 |
pr_err("%s: fasync list not empty! ", __func__); |
1da177e4c Linux-2.6.12-rc2 |
555 |
|
19e8d69c5 net: replace perc... |
556 |
this_cpu_sub(sockets_in_use, 1); |
1da177e4c Linux-2.6.12-rc2 |
557 558 559 560 |
if (!sock->file) { iput(SOCK_INODE(sock)); return; } |
89bddce58 [NET] socket: cod... |
561 |
sock->file = NULL; |
1da177e4c Linux-2.6.12-rc2 |
562 |
} |
c6d409cfd From abbffa2aa9bd... |
563 |
EXPORT_SYMBOL(sock_release); |
1da177e4c Linux-2.6.12-rc2 |
564 |
|
c14ac9451 sock: enable time... |
565 |
void __sock_tx_timestamp(__u16 tsflags, __u8 *tx_flags) |
20d494735 net: socket infra... |
566 |
{ |
140c55d4b net-timestamp: so... |
567 |
u8 flags = *tx_flags; |
c14ac9451 sock: enable time... |
568 |
if (tsflags & SOF_TIMESTAMPING_TX_HARDWARE) |
140c55d4b net-timestamp: so... |
569 |
flags |= SKBTX_HW_TSTAMP; |
c14ac9451 sock: enable time... |
570 |
if (tsflags & SOF_TIMESTAMPING_TX_SOFTWARE) |
140c55d4b net-timestamp: so... |
571 |
flags |= SKBTX_SW_TSTAMP; |
c14ac9451 sock: enable time... |
572 |
if (tsflags & SOF_TIMESTAMPING_TX_SCHED) |
140c55d4b net-timestamp: so... |
573 |
flags |= SKBTX_SCHED_TSTAMP; |
140c55d4b net-timestamp: so... |
574 |
*tx_flags = flags; |
20d494735 net: socket infra... |
575 |
} |
67cc0d407 net-timestamp: op... |
576 |
EXPORT_SYMBOL(__sock_tx_timestamp); |
20d494735 net: socket infra... |
577 |
|
d8725c86a get rid of the si... |
578 |
static inline int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg) |
1da177e4c Linux-2.6.12-rc2 |
579 |
{ |
01e97e651 new helper: msg_d... |
580 |
int ret = sock->ops->sendmsg(sock, msg, msg_data_left(msg)); |
d8725c86a get rid of the si... |
581 582 |
BUG_ON(ret == -EIOCBQUEUED); return ret; |
1da177e4c Linux-2.6.12-rc2 |
583 |
} |
d8725c86a get rid of the si... |
584 |
int sock_sendmsg(struct socket *sock, struct msghdr *msg) |
228e548e6 net: Add sendmmsg... |
585 |
{ |
d8725c86a get rid of the si... |
586 |
int err = security_socket_sendmsg(sock, msg, |
01e97e651 new helper: msg_d... |
587 |
msg_data_left(msg)); |
228e548e6 net: Add sendmmsg... |
588 |
|
d8725c86a get rid of the si... |
589 |
return err ?: sock_sendmsg_nosec(sock, msg); |
0cf00c6f3 net/socket.c : in... |
590 |
} |
c6d409cfd From abbffa2aa9bd... |
591 |
EXPORT_SYMBOL(sock_sendmsg); |
1da177e4c Linux-2.6.12-rc2 |
592 593 594 595 |
int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, size_t num, size_t size) { |
6aa248145 switch kernel_sen... |
596 |
iov_iter_kvec(&msg->msg_iter, WRITE | ITER_KVEC, vec, num, size); |
d8725c86a get rid of the si... |
597 |
return sock_sendmsg(sock, msg); |
1da177e4c Linux-2.6.12-rc2 |
598 |
} |
c6d409cfd From abbffa2aa9bd... |
599 |
EXPORT_SYMBOL(kernel_sendmsg); |
1da177e4c Linux-2.6.12-rc2 |
600 |
|
92f37fd2e [NET]: Adding SO_... |
601 602 603 604 605 606 |
/* * 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... |
607 |
int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP); |
f24b9be59 net-timestamp: ex... |
608 |
struct scm_timestamping tss; |
20d494735 net: socket infra... |
609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 |
int empty = 1; struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb); /* Race occurred between timestamp enabling and packet receiving. Fill in the current time for now. */ if (need_software_tstamp && skb->tstamp.tv64 == 0) __net_timestamp(skb); 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... |
625 626 |
struct timespec ts; skb_get_timestampns(skb, &ts); |
20d494735 net: socket infra... |
627 |
put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, |
f24b9be59 net-timestamp: ex... |
628 |
sizeof(ts), &ts); |
20d494735 net: socket infra... |
629 630 |
} } |
f24b9be59 net-timestamp: ex... |
631 |
memset(&tss, 0, sizeof(tss)); |
c199105d1 net-timestamp: on... |
632 |
if ((sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE) && |
f24b9be59 net-timestamp: ex... |
633 |
ktime_to_timespec_cond(skb->tstamp, tss.ts + 0)) |
20d494735 net: socket infra... |
634 |
empty = 0; |
4d276eb6a net: remove depre... |
635 |
if (shhwtstamps && |
b9f40e21e net-timestamp: mo... |
636 |
(sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) && |
f24b9be59 net-timestamp: ex... |
637 |
ktime_to_timespec_cond(shhwtstamps->hwtstamp, tss.ts + 2)) |
4d276eb6a net: remove depre... |
638 |
empty = 0; |
20d494735 net: socket infra... |
639 640 |
if (!empty) put_cmsg(msg, SOL_SOCKET, |
f24b9be59 net-timestamp: ex... |
641 |
SCM_TIMESTAMPING, sizeof(tss), &tss); |
92f37fd2e [NET]: Adding SO_... |
642 |
} |
7c81fd8bf [SOCKET]: Export ... |
643 |
EXPORT_SYMBOL_GPL(__sock_recv_timestamp); |
6e3e939f3 net: add wireless... |
644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 |
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 ... |
659 660 |
static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) |
3b885787e net: Generalize s... |
661 |
{ |
744d5a3e9 net: move skb->dr... |
662 |
if (sock_flag(sk, SOCK_RXQ_OVFL) && skb && SOCK_SKB_CB(skb)->dropcount) |
3b885787e net: Generalize s... |
663 |
put_cmsg(msg, SOL_SOCKET, SO_RXQ_OVFL, |
744d5a3e9 net: move skb->dr... |
664 |
sizeof(__u32), &SOCK_SKB_CB(skb)->dropcount); |
3b885787e net: Generalize s... |
665 |
} |
767dd0336 net: speedup sock... |
666 |
void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, |
3b885787e net: Generalize s... |
667 668 669 670 671 |
struct sk_buff *skb) { sock_recv_timestamp(msg, sk, skb); sock_recv_drops(msg, sk, skb); } |
767dd0336 net: speedup sock... |
672 |
EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops); |
3b885787e net: Generalize s... |
673 |
|
1b7841404 net: Remove iocb ... |
674 |
static inline int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg, |
2da62906b [net] drop 'size'... |
675 |
int flags) |
1da177e4c Linux-2.6.12-rc2 |
676 |
{ |
2da62906b [net] drop 'size'... |
677 |
return sock->ops->recvmsg(sock, msg, msg_data_left(msg), flags); |
1da177e4c Linux-2.6.12-rc2 |
678 |
} |
2da62906b [net] drop 'size'... |
679 |
int sock_recvmsg(struct socket *sock, struct msghdr *msg, int flags) |
a2e272554 net: Introduce re... |
680 |
{ |
2da62906b [net] drop 'size'... |
681 |
int err = security_socket_recvmsg(sock, msg, msg_data_left(msg), flags); |
a2e272554 net: Introduce re... |
682 |
|
2da62906b [net] drop 'size'... |
683 |
return err ?: sock_recvmsg_nosec(sock, msg, flags); |
1da177e4c Linux-2.6.12-rc2 |
684 |
} |
c6d409cfd From abbffa2aa9bd... |
685 |
EXPORT_SYMBOL(sock_recvmsg); |
1da177e4c Linux-2.6.12-rc2 |
686 |
|
c1249c0aa net: Document the... |
687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 |
/** * 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... |
702 703 |
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 |
704 705 706 |
{ mm_segment_t oldfs = get_fs(); int result; |
6aa248145 switch kernel_sen... |
707 |
iov_iter_kvec(&msg->msg_iter, READ | ITER_KVEC, vec, num, size); |
1da177e4c Linux-2.6.12-rc2 |
708 |
set_fs(KERNEL_DS); |
2da62906b [net] drop 'size'... |
709 |
result = sock_recvmsg(sock, msg, flags); |
1da177e4c Linux-2.6.12-rc2 |
710 711 712 |
set_fs(oldfs); return result; } |
c6d409cfd From abbffa2aa9bd... |
713 |
EXPORT_SYMBOL(kernel_recvmsg); |
1da177e4c Linux-2.6.12-rc2 |
714 |
|
ce1d4d3e8 [NET]: restructur... |
715 716 |
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 |
717 |
{ |
1da177e4c Linux-2.6.12-rc2 |
718 719 |
struct socket *sock; int flags; |
ce1d4d3e8 [NET]: restructur... |
720 |
sock = file->private_data; |
35f9c09fe tcp: tcp_sendpage... |
721 722 723 |
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... |
724 |
|
e69495838 Make sock_sendpag... |
725 |
return kernel_sendpage(sock, page, offset, size, flags); |
ce1d4d3e8 [NET]: restructur... |
726 |
} |
1da177e4c Linux-2.6.12-rc2 |
727 |
|
9c55e01c0 [TCP]: Splice rec... |
728 |
static ssize_t sock_splice_read(struct file *file, loff_t *ppos, |
c6d409cfd From abbffa2aa9bd... |
729 |
struct pipe_inode_info *pipe, size_t len, |
9c55e01c0 [TCP]: Splice rec... |
730 731 732 |
unsigned int flags) { struct socket *sock = file->private_data; |
997b37da1 [NET]: Make sure ... |
733 734 |
if (unlikely(!sock->ops->splice_read)) return -EINVAL; |
9c55e01c0 [TCP]: Splice rec... |
735 736 |
return sock->ops->splice_read(sock, ppos, pipe, len, flags); } |
8ae5e030f net: switch socke... |
737 |
static ssize_t sock_read_iter(struct kiocb *iocb, struct iov_iter *to) |
ce1d4d3e8 [NET]: restructur... |
738 |
{ |
6d6523302 net/socket.c: fol... |
739 740 |
struct file *file = iocb->ki_filp; struct socket *sock = file->private_data; |
0345f9313 net: socket: add ... |
741 742 |
struct msghdr msg = {.msg_iter = *to, .msg_iocb = iocb}; |
8ae5e030f net: switch socke... |
743 |
ssize_t res; |
ce1d4d3e8 [NET]: restructur... |
744 |
|
8ae5e030f net: switch socke... |
745 746 747 748 |
if (file->f_flags & O_NONBLOCK) msg.msg_flags = MSG_DONTWAIT; if (iocb->ki_pos != 0) |
1da177e4c Linux-2.6.12-rc2 |
749 |
return -ESPIPE; |
027445c37 [PATCH] Vectorize... |
750 |
|
66ee59af6 fs: remove ki_nbytes |
751 |
if (!iov_iter_count(to)) /* Match SYS5 behaviour */ |
1da177e4c Linux-2.6.12-rc2 |
752 |
return 0; |
2da62906b [net] drop 'size'... |
753 |
res = sock_recvmsg(sock, &msg, msg.msg_flags); |
8ae5e030f net: switch socke... |
754 755 |
*to = msg.msg_iter; return res; |
1da177e4c Linux-2.6.12-rc2 |
756 |
} |
8ae5e030f net: switch socke... |
757 |
static ssize_t sock_write_iter(struct kiocb *iocb, struct iov_iter *from) |
ce1d4d3e8 [NET]: restructur... |
758 |
{ |
6d6523302 net/socket.c: fol... |
759 760 |
struct file *file = iocb->ki_filp; struct socket *sock = file->private_data; |
0345f9313 net: socket: add ... |
761 762 |
struct msghdr msg = {.msg_iter = *from, .msg_iocb = iocb}; |
8ae5e030f net: switch socke... |
763 |
ssize_t res; |
1da177e4c Linux-2.6.12-rc2 |
764 |
|
8ae5e030f net: switch socke... |
765 |
if (iocb->ki_pos != 0) |
ce1d4d3e8 [NET]: restructur... |
766 |
return -ESPIPE; |
027445c37 [PATCH] Vectorize... |
767 |
|
8ae5e030f net: switch socke... |
768 769 |
if (file->f_flags & O_NONBLOCK) msg.msg_flags = MSG_DONTWAIT; |
6d6523302 net/socket.c: fol... |
770 771 |
if (sock->type == SOCK_SEQPACKET) msg.msg_flags |= MSG_EOR; |
d8725c86a get rid of the si... |
772 |
res = sock_sendmsg(sock, &msg); |
8ae5e030f net: switch socke... |
773 774 |
*from = msg.msg_iter; return res; |
1da177e4c Linux-2.6.12-rc2 |
775 |
} |
1da177e4c Linux-2.6.12-rc2 |
776 777 778 779 |
/* * Atomic setting of ioctl hooks to avoid race * with module unload. */ |
4a3e2f711 [NET] sem2mutex: ... |
780 |
static DEFINE_MUTEX(br_ioctl_mutex); |
c6d409cfd From abbffa2aa9bd... |
781 |
static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg); |
1da177e4c Linux-2.6.12-rc2 |
782 |
|
881d966b4 [NET]: Make the d... |
783 |
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
784 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
785 |
mutex_lock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
786 |
br_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
787 |
mutex_unlock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
788 789 |
} EXPORT_SYMBOL(brioctl_set); |
4a3e2f711 [NET] sem2mutex: ... |
790 |
static DEFINE_MUTEX(vlan_ioctl_mutex); |
881d966b4 [NET]: Make the d... |
791 |
static int (*vlan_ioctl_hook) (struct net *, void __user *arg); |
1da177e4c Linux-2.6.12-rc2 |
792 |
|
881d966b4 [NET]: Make the d... |
793 |
void vlan_ioctl_set(int (*hook) (struct net *, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
794 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
795 |
mutex_lock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
796 |
vlan_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
797 |
mutex_unlock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
798 799 |
} EXPORT_SYMBOL(vlan_ioctl_set); |
4a3e2f711 [NET] sem2mutex: ... |
800 |
static DEFINE_MUTEX(dlci_ioctl_mutex); |
89bddce58 [NET] socket: cod... |
801 |
static int (*dlci_ioctl_hook) (unsigned int, void __user *); |
1da177e4c Linux-2.6.12-rc2 |
802 |
|
89bddce58 [NET] socket: cod... |
803 |
void dlci_ioctl_set(int (*hook) (unsigned int, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
804 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
805 |
mutex_lock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
806 |
dlci_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
807 |
mutex_unlock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
808 809 |
} EXPORT_SYMBOL(dlci_ioctl_set); |
6b96018b2 compat: move sock... |
810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 |
static long sock_do_ioctl(struct net *net, struct socket *sock, unsigned int cmd, unsigned long arg) { 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. */ if (err == -ENOIOCTLCMD) err = dev_ioctl(net, cmd, argp); return err; } |
1da177e4c Linux-2.6.12-rc2 |
827 828 829 830 831 832 833 834 |
/* * 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. */ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) { struct socket *sock; |
881d966b4 [NET]: Make the d... |
835 |
struct sock *sk; |
1da177e4c Linux-2.6.12-rc2 |
836 837 |
void __user *argp = (void __user *)arg; int pid, err; |
881d966b4 [NET]: Make the d... |
838 |
struct net *net; |
1da177e4c Linux-2.6.12-rc2 |
839 |
|
b69aee04f [NET]: Use file->... |
840 |
sock = file->private_data; |
881d966b4 [NET]: Make the d... |
841 |
sk = sock->sk; |
3b1e0a655 [NET] NETNS: Omit... |
842 |
net = sock_net(sk); |
1da177e4c Linux-2.6.12-rc2 |
843 |
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) { |
881d966b4 [NET]: Make the d... |
844 |
err = dev_ioctl(net, cmd, argp); |
1da177e4c Linux-2.6.12-rc2 |
845 |
} else |
3d23e349d wext: refactor |
846 |
#ifdef CONFIG_WEXT_CORE |
1da177e4c Linux-2.6.12-rc2 |
847 |
if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) { |
881d966b4 [NET]: Make the d... |
848 |
err = dev_ioctl(net, cmd, argp); |
1da177e4c Linux-2.6.12-rc2 |
849 |
} else |
3d23e349d wext: refactor |
850 |
#endif |
89bddce58 [NET] socket: cod... |
851 |
switch (cmd) { |
1da177e4c Linux-2.6.12-rc2 |
852 853 854 855 856 |
case FIOSETOWN: case SIOCSPGRP: err = -EFAULT; if (get_user(pid, (int __user *)argp)) break; |
e0b93eddf security: make se... |
857 858 |
f_setown(sock->file, pid, 1); err = 0; |
1da177e4c Linux-2.6.12-rc2 |
859 860 861 |
break; case FIOGETOWN: case SIOCGPGRP: |
609d7fa95 [PATCH] file: mod... |
862 |
err = put_user(f_getown(sock->file), |
89bddce58 [NET] socket: cod... |
863 |
(int __user *)argp); |
1da177e4c Linux-2.6.12-rc2 |
864 865 866 867 868 869 870 871 |
break; case SIOCGIFBR: case SIOCSIFBR: case SIOCBRADDBR: case SIOCBRDELBR: err = -ENOPKG; if (!br_ioctl_hook) request_module("bridge"); |
4a3e2f711 [NET] sem2mutex: ... |
872 |
mutex_lock(&br_ioctl_mutex); |
89bddce58 [NET] socket: cod... |
873 |
if (br_ioctl_hook) |
881d966b4 [NET]: Make the d... |
874 |
err = br_ioctl_hook(net, cmd, argp); |
4a3e2f711 [NET] sem2mutex: ... |
875 |
mutex_unlock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
876 877 878 879 880 881 |
break; case SIOCGIFVLAN: case SIOCSIFVLAN: err = -ENOPKG; if (!vlan_ioctl_hook) request_module("8021q"); |
4a3e2f711 [NET] sem2mutex: ... |
882 |
mutex_lock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
883 |
if (vlan_ioctl_hook) |
881d966b4 [NET]: Make the d... |
884 |
err = vlan_ioctl_hook(net, argp); |
4a3e2f711 [NET] sem2mutex: ... |
885 |
mutex_unlock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
886 |
break; |
1da177e4c Linux-2.6.12-rc2 |
887 888 889 890 891 |
case SIOCADDDLCI: case SIOCDELDLCI: err = -ENOPKG; if (!dlci_ioctl_hook) request_module("dlci"); |
7512cbf6e [DLCI]: Fix tiny ... |
892 893 |
mutex_lock(&dlci_ioctl_mutex); if (dlci_ioctl_hook) |
1da177e4c Linux-2.6.12-rc2 |
894 |
err = dlci_ioctl_hook(cmd, argp); |
7512cbf6e [DLCI]: Fix tiny ... |
895 |
mutex_unlock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
896 897 |
break; default: |
6b96018b2 compat: move sock... |
898 |
err = sock_do_ioctl(net, sock, cmd, arg); |
1da177e4c Linux-2.6.12-rc2 |
899 |
break; |
89bddce58 [NET] socket: cod... |
900 |
} |
1da177e4c Linux-2.6.12-rc2 |
901 902 903 904 905 906 907 |
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... |
908 |
|
1da177e4c Linux-2.6.12-rc2 |
909 910 911 912 913 914 915 916 917 |
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 |
918 |
sock->type = type; |
7420ed23a [NetLabel]: SELin... |
919 920 921 |
err = security_socket_post_create(sock, family, type, protocol, 1); if (err) goto out_release; |
1da177e4c Linux-2.6.12-rc2 |
922 923 924 |
out: *res = sock; return err; |
7420ed23a [NetLabel]: SELin... |
925 926 927 928 |
out_release: sock_release(sock); sock = NULL; goto out; |
1da177e4c Linux-2.6.12-rc2 |
929 |
} |
c6d409cfd From abbffa2aa9bd... |
930 |
EXPORT_SYMBOL(sock_create_lite); |
1da177e4c Linux-2.6.12-rc2 |
931 932 |
/* No kernel lock held - perfect */ |
89bddce58 [NET] socket: cod... |
933 |
static unsigned int sock_poll(struct file *file, poll_table *wait) |
1da177e4c Linux-2.6.12-rc2 |
934 |
{ |
cbf55001b net: rename low l... |
935 |
unsigned int busy_flag = 0; |
1da177e4c Linux-2.6.12-rc2 |
936 937 938 |
struct socket *sock; /* |
89bddce58 [NET] socket: cod... |
939 |
* We can't return errors to poll, so it's either yes or no. |
1da177e4c Linux-2.6.12-rc2 |
940 |
*/ |
b69aee04f [NET]: Use file->... |
941 |
sock = file->private_data; |
2d48d67fa net: poll/select ... |
942 |
|
cbf55001b net: rename low l... |
943 |
if (sk_can_busy_loop(sock->sk)) { |
2d48d67fa net: poll/select ... |
944 |
/* this socket can poll_ll so tell the system call */ |
cbf55001b net: rename low l... |
945 |
busy_flag = POLL_BUSY_LOOP; |
2d48d67fa net: poll/select ... |
946 947 |
/* once, only if requested by syscall */ |
cbf55001b net: rename low l... |
948 949 |
if (wait && (wait->_key & POLL_BUSY_LOOP)) sk_busy_loop(sock->sk, 1); |
2d48d67fa net: poll/select ... |
950 |
} |
cbf55001b net: rename low l... |
951 |
return busy_flag | sock->ops->poll(file, sock, wait); |
1da177e4c Linux-2.6.12-rc2 |
952 |
} |
89bddce58 [NET] socket: cod... |
953 |
static int sock_mmap(struct file *file, struct vm_area_struct *vma) |
1da177e4c Linux-2.6.12-rc2 |
954 |
{ |
b69aee04f [NET]: Use file->... |
955 |
struct socket *sock = file->private_data; |
1da177e4c Linux-2.6.12-rc2 |
956 957 958 |
return sock->ops->mmap(file, sock, vma); } |
20380731b [NET]: Fix sparse... |
959 |
static int sock_close(struct inode *inode, struct file *filp) |
1da177e4c Linux-2.6.12-rc2 |
960 |
{ |
1da177e4c Linux-2.6.12-rc2 |
961 962 963 964 965 966 967 968 969 970 971 972 |
sock_release(SOCKET_I(inode)); 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... |
973 |
* or under socket lock |
1da177e4c Linux-2.6.12-rc2 |
974 975 976 977 |
*/ static int sock_fasync(int fd, struct file *filp, int on) { |
989a29792 fasync: RCU and f... |
978 979 |
struct socket *sock = filp->private_data; struct sock *sk = sock->sk; |
eaefd1105 net: add __rcu an... |
980 |
struct socket_wq *wq; |
1da177e4c Linux-2.6.12-rc2 |
981 |
|
989a29792 fasync: RCU and f... |
982 |
if (sk == NULL) |
1da177e4c Linux-2.6.12-rc2 |
983 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
984 985 |
lock_sock(sk); |
1e1d04e67 net: introduce lo... |
986 |
wq = rcu_dereference_protected(sock->wq, lockdep_sock_is_held(sk)); |
eaefd1105 net: add __rcu an... |
987 |
fasync_helper(fd, filp, on, &wq->fasync_list); |
1da177e4c Linux-2.6.12-rc2 |
988 |
|
eaefd1105 net: add __rcu an... |
989 |
if (!wq->fasync_list) |
989a29792 fasync: RCU and f... |
990 991 |
sock_reset_flag(sk, SOCK_FASYNC); else |
bcdce7195 net: speedup sk_w... |
992 |
sock_set_flag(sk, SOCK_FASYNC); |
1da177e4c Linux-2.6.12-rc2 |
993 |
|
989a29792 fasync: RCU and f... |
994 |
release_sock(sk); |
1da177e4c Linux-2.6.12-rc2 |
995 996 |
return 0; } |
ceb5d58b2 net: fix sock_wak... |
997 |
/* This function may be called only under rcu_lock */ |
1da177e4c Linux-2.6.12-rc2 |
998 |
|
ceb5d58b2 net: fix sock_wak... |
999 |
int sock_wake_async(struct socket_wq *wq, int how, int band) |
1da177e4c Linux-2.6.12-rc2 |
1000 |
{ |
ceb5d58b2 net: fix sock_wak... |
1001 |
if (!wq || !wq->fasync_list) |
1da177e4c Linux-2.6.12-rc2 |
1002 |
return -1; |
ceb5d58b2 net: fix sock_wak... |
1003 |
|
89bddce58 [NET] socket: cod... |
1004 |
switch (how) { |
8d8ad9d7c [NET]: Name magic... |
1005 |
case SOCK_WAKE_WAITD: |
ceb5d58b2 net: fix sock_wak... |
1006 |
if (test_bit(SOCKWQ_ASYNC_WAITDATA, &wq->flags)) |
1da177e4c Linux-2.6.12-rc2 |
1007 1008 |
break; goto call_kill; |
8d8ad9d7c [NET]: Name magic... |
1009 |
case SOCK_WAKE_SPACE: |
ceb5d58b2 net: fix sock_wak... |
1010 |
if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags)) |
1da177e4c Linux-2.6.12-rc2 |
1011 1012 |
break; /* fall through */ |
8d8ad9d7c [NET]: Name magic... |
1013 |
case SOCK_WAKE_IO: |
89bddce58 [NET] socket: cod... |
1014 |
call_kill: |
438154823 net: sock_def_rea... |
1015 |
kill_fasync(&wq->fasync_list, SIGIO, band); |
1da177e4c Linux-2.6.12-rc2 |
1016 |
break; |
8d8ad9d7c [NET]: Name magic... |
1017 |
case SOCK_WAKE_URG: |
438154823 net: sock_def_rea... |
1018 |
kill_fasync(&wq->fasync_list, SIGURG, band); |
1da177e4c Linux-2.6.12-rc2 |
1019 |
} |
ceb5d58b2 net: fix sock_wak... |
1020 |
|
1da177e4c Linux-2.6.12-rc2 |
1021 1022 |
return 0; } |
c6d409cfd From abbffa2aa9bd... |
1023 |
EXPORT_SYMBOL(sock_wake_async); |
1da177e4c Linux-2.6.12-rc2 |
1024 |
|
721db93a5 net: Export __soc... |
1025 |
int __sock_create(struct net *net, int family, int type, int protocol, |
89bddce58 [NET] socket: cod... |
1026 |
struct socket **res, int kern) |
1da177e4c Linux-2.6.12-rc2 |
1027 1028 1029 |
{ int err; struct socket *sock; |
55737fda0 [NET]: socket fam... |
1030 |
const struct net_proto_family *pf; |
1da177e4c Linux-2.6.12-rc2 |
1031 1032 |
/* |
89bddce58 [NET] socket: cod... |
1033 |
* Check protocol is in range |
1da177e4c Linux-2.6.12-rc2 |
1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 |
*/ 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 ... |
1046 1047 1048 |
pr_info_once("%s uses obsolete (PF_INET,SOCK_PACKET) ", current->comm); |
1da177e4c Linux-2.6.12-rc2 |
1049 1050 1051 1052 1053 1054 |
family = PF_PACKET; } err = security_socket_create(family, type, protocol, kern); if (err) return err; |
89bddce58 [NET] socket: cod... |
1055 |
|
55737fda0 [NET]: socket fam... |
1056 1057 1058 1059 1060 1061 1062 |
/* * 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_... |
1063 1064 |
net_warn_ratelimited("socket: no more sockets "); |
55737fda0 [NET]: socket fam... |
1065 1066 1067 1068 1069 |
return -ENFILE; /* Not exactly a match, but its the closest posix thing */ } sock->type = type; |
95a5afca4 net: Remove CONFI... |
1070 |
#ifdef CONFIG_MODULES |
89bddce58 [NET] socket: cod... |
1071 1072 1073 |
/* 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 |
1074 1075 1076 |
* requested real, full-featured networking support upon configuration. * Otherwise module support will break! */ |
190683a9d net: net_families... |
1077 |
if (rcu_access_pointer(net_families[family]) == NULL) |
89bddce58 [NET] socket: cod... |
1078 |
request_module("net-pf-%d", family); |
1da177e4c Linux-2.6.12-rc2 |
1079 |
#endif |
55737fda0 [NET]: socket fam... |
1080 1081 1082 1083 1084 |
rcu_read_lock(); pf = rcu_dereference(net_families[family]); err = -EAFNOSUPPORT; if (!pf) goto out_release; |
1da177e4c Linux-2.6.12-rc2 |
1085 1086 1087 1088 1089 |
/* * 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... |
1090 |
if (!try_module_get(pf->owner)) |
1da177e4c Linux-2.6.12-rc2 |
1091 |
goto out_release; |
55737fda0 [NET]: socket fam... |
1092 1093 |
/* Now protected by module ref count */ rcu_read_unlock(); |
3f378b684 net: pass kern to... |
1094 |
err = pf->create(net, sock, protocol, kern); |
55737fda0 [NET]: socket fam... |
1095 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1096 |
goto out_module_put; |
a79af59ef [NET]: Fix module... |
1097 |
|
1da177e4c Linux-2.6.12-rc2 |
1098 1099 1100 1101 |
/* * 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... |
1102 1103 |
if (!try_module_get(sock->ops->owner)) goto out_module_busy; |
1da177e4c Linux-2.6.12-rc2 |
1104 1105 1106 1107 |
/* * Now that we're done with the ->create function, the [loadable] * module can have its refcnt decremented */ |
55737fda0 [NET]: socket fam... |
1108 |
module_put(pf->owner); |
7420ed23a [NetLabel]: SELin... |
1109 1110 |
err = security_socket_post_create(sock, family, type, protocol, kern); if (err) |
3b1855255 [NET]: Fix unbala... |
1111 |
goto out_sock_release; |
55737fda0 [NET]: socket fam... |
1112 |
*res = sock; |
1da177e4c Linux-2.6.12-rc2 |
1113 |
|
55737fda0 [NET]: socket fam... |
1114 1115 1116 1117 |
return 0; out_module_busy: err = -EAFNOSUPPORT; |
1da177e4c Linux-2.6.12-rc2 |
1118 |
out_module_put: |
55737fda0 [NET]: socket fam... |
1119 1120 1121 |
sock->ops = NULL; module_put(pf->owner); out_sock_release: |
1da177e4c Linux-2.6.12-rc2 |
1122 |
sock_release(sock); |
55737fda0 [NET]: socket fam... |
1123 1124 1125 1126 1127 |
return err; out_release: rcu_read_unlock(); goto out_sock_release; |
1da177e4c Linux-2.6.12-rc2 |
1128 |
} |
721db93a5 net: Export __soc... |
1129 |
EXPORT_SYMBOL(__sock_create); |
1da177e4c Linux-2.6.12-rc2 |
1130 1131 1132 |
int sock_create(int family, int type, int protocol, struct socket **res) { |
1b8d7ae42 [NET]: Make socke... |
1133 |
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0); |
1da177e4c Linux-2.6.12-rc2 |
1134 |
} |
c6d409cfd From abbffa2aa9bd... |
1135 |
EXPORT_SYMBOL(sock_create); |
1da177e4c Linux-2.6.12-rc2 |
1136 |
|
eeb1bd5c4 net: Add a struct... |
1137 |
int sock_create_kern(struct net *net, int family, int type, int protocol, struct socket **res) |
1da177e4c Linux-2.6.12-rc2 |
1138 |
{ |
eeb1bd5c4 net: Add a struct... |
1139 |
return __sock_create(net, family, type, protocol, res, 1); |
1da177e4c Linux-2.6.12-rc2 |
1140 |
} |
c6d409cfd From abbffa2aa9bd... |
1141 |
EXPORT_SYMBOL(sock_create_kern); |
1da177e4c Linux-2.6.12-rc2 |
1142 |
|
3e0fa65f8 [CVE-2009-0029] S... |
1143 |
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) |
1da177e4c Linux-2.6.12-rc2 |
1144 1145 1146 |
{ int retval; struct socket *sock; |
a677a039b flag parameters: ... |
1147 |
int flags; |
e38b36f32 flag parameters: ... |
1148 1149 1150 1151 1152 |
/* 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: ... |
1153 |
flags = type & ~SOCK_TYPE_MASK; |
77d272005 flag parameters: ... |
1154 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
a677a039b flag parameters: ... |
1155 1156 |
return -EINVAL; type &= SOCK_TYPE_MASK; |
1da177e4c Linux-2.6.12-rc2 |
1157 |
|
aaca0bdca flag parameters: ... |
1158 1159 |
if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
1da177e4c Linux-2.6.12-rc2 |
1160 1161 1162 |
retval = sock_create(family, type, protocol, &sock); if (retval < 0) goto out; |
77d272005 flag parameters: ... |
1163 |
retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); |
1da177e4c Linux-2.6.12-rc2 |
1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 |
if (retval < 0) goto out_release; out: /* It may be already another descriptor 8) Not kernel problem. */ return retval; out_release: sock_release(sock); return retval; } /* * Create a pair of connected sockets. */ |
3e0fa65f8 [CVE-2009-0029] S... |
1179 1180 |
SYSCALL_DEFINE4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec) |
1da177e4c Linux-2.6.12-rc2 |
1181 1182 1183 |
{ struct socket *sock1, *sock2; int fd1, fd2, err; |
db3495099 [PATCH] AUDIT_FD_... |
1184 |
struct file *newfile1, *newfile2; |
a677a039b flag parameters: ... |
1185 1186 1187 |
int flags; flags = type & ~SOCK_TYPE_MASK; |
77d272005 flag parameters: ... |
1188 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
a677a039b flag parameters: ... |
1189 1190 |
return -EINVAL; type &= SOCK_TYPE_MASK; |
1da177e4c Linux-2.6.12-rc2 |
1191 |
|
aaca0bdca flag parameters: ... |
1192 1193 |
if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
1da177e4c Linux-2.6.12-rc2 |
1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 |
/* * Obtain the first socket and check if the underlying protocol * supports the socketpair call. */ err = sock_create(family, type, protocol, &sock1); if (err < 0) goto out; err = sock_create(family, type, protocol, &sock2); if (err < 0) goto out_release_1; err = sock1->ops->socketpair(sock1, sock2); |
89bddce58 [NET] socket: cod... |
1208 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1209 |
goto out_release_both; |
284076305 take descriptor h... |
1210 |
fd1 = get_unused_fd_flags(flags); |
bf3c23d17 [NET]: Fix error ... |
1211 1212 |
if (unlikely(fd1 < 0)) { err = fd1; |
db3495099 [PATCH] AUDIT_FD_... |
1213 |
goto out_release_both; |
bf3c23d17 [NET]: Fix error ... |
1214 |
} |
d73aa2867 net: handle error... |
1215 |
|
284076305 take descriptor h... |
1216 |
fd2 = get_unused_fd_flags(flags); |
198de4d7a reorder alloc_fd/... |
1217 1218 |
if (unlikely(fd2 < 0)) { err = fd2; |
d73aa2867 net: handle error... |
1219 |
goto out_put_unused_1; |
284076305 take descriptor h... |
1220 |
} |
aab174f0d Merge branch 'for... |
1221 |
newfile1 = sock_alloc_file(sock1, flags, NULL); |
b5ffe6344 net: Drop unlikel... |
1222 |
if (IS_ERR(newfile1)) { |
284076305 take descriptor h... |
1223 |
err = PTR_ERR(newfile1); |
d73aa2867 net: handle error... |
1224 |
goto out_put_unused_both; |
284076305 take descriptor h... |
1225 |
} |
aab174f0d Merge branch 'for... |
1226 |
newfile2 = sock_alloc_file(sock2, flags, NULL); |
284076305 take descriptor h... |
1227 1228 |
if (IS_ERR(newfile2)) { err = PTR_ERR(newfile2); |
d73aa2867 net: handle error... |
1229 |
goto out_fput_1; |
db3495099 [PATCH] AUDIT_FD_... |
1230 |
} |
d73aa2867 net: handle error... |
1231 1232 1233 1234 1235 1236 1237 |
err = put_user(fd1, &usockvec[0]); if (err) goto out_fput_both; err = put_user(fd2, &usockvec[1]); if (err) goto out_fput_both; |
157cf649a sanitize audit_fd... |
1238 |
audit_fd_pair(fd1, fd2); |
d73aa2867 net: handle error... |
1239 |
|
db3495099 [PATCH] AUDIT_FD_... |
1240 1241 |
fd_install(fd1, newfile1); fd_install(fd2, newfile2); |
1da177e4c Linux-2.6.12-rc2 |
1242 1243 1244 |
/* fd1 and fd2 may be already another descriptors. * Not kernel problem. */ |
d73aa2867 net: handle error... |
1245 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1246 |
|
d73aa2867 net: handle error... |
1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 |
out_fput_both: fput(newfile2); fput(newfile1); put_unused_fd(fd2); put_unused_fd(fd1); goto out; out_fput_1: fput(newfile1); put_unused_fd(fd2); put_unused_fd(fd1); sock_release(sock2); goto out; |
1da177e4c Linux-2.6.12-rc2 |
1260 |
|
d73aa2867 net: handle error... |
1261 1262 1263 1264 |
out_put_unused_both: put_unused_fd(fd2); out_put_unused_1: put_unused_fd(fd1); |
1da177e4c Linux-2.6.12-rc2 |
1265 |
out_release_both: |
89bddce58 [NET] socket: cod... |
1266 |
sock_release(sock2); |
1da177e4c Linux-2.6.12-rc2 |
1267 |
out_release_1: |
89bddce58 [NET] socket: cod... |
1268 |
sock_release(sock1); |
1da177e4c Linux-2.6.12-rc2 |
1269 1270 1271 |
out: return err; } |
1da177e4c Linux-2.6.12-rc2 |
1272 1273 1274 1275 1276 1277 1278 |
/* * 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). */ |
20f37034f [CVE-2009-0029] S... |
1279 |
SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) |
1da177e4c Linux-2.6.12-rc2 |
1280 1281 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1282 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1283 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1284 |
|
89bddce58 [NET] socket: cod... |
1285 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
e71a4783a [NET] core: white... |
1286 |
if (sock) { |
43db362d3 net: get rid of s... |
1287 |
err = move_addr_to_kernel(umyaddr, addrlen, &address); |
89bddce58 [NET] socket: cod... |
1288 1289 |
if (err >= 0) { err = security_socket_bind(sock, |
230b18392 net: Use standard... |
1290 |
(struct sockaddr *)&address, |
89bddce58 [NET] socket: cod... |
1291 |
addrlen); |
6cb153cab [NET]: use fget_l... |
1292 1293 |
if (!err) err = sock->ops->bind(sock, |
89bddce58 [NET] socket: cod... |
1294 |
(struct sockaddr *) |
230b18392 net: Use standard... |
1295 |
&address, addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1296 |
} |
6cb153cab [NET]: use fget_l... |
1297 |
fput_light(sock->file, fput_needed); |
89bddce58 [NET] socket: cod... |
1298 |
} |
1da177e4c Linux-2.6.12-rc2 |
1299 1300 |
return err; } |
1da177e4c Linux-2.6.12-rc2 |
1301 1302 1303 1304 1305 |
/* * 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. */ |
3e0fa65f8 [CVE-2009-0029] S... |
1306 |
SYSCALL_DEFINE2(listen, int, fd, int, backlog) |
1da177e4c Linux-2.6.12-rc2 |
1307 1308 |
{ struct socket *sock; |
6cb153cab [NET]: use fget_l... |
1309 |
int err, fput_needed; |
b8e1f9b5c [NET] sysctl: mak... |
1310 |
int somaxconn; |
89bddce58 [NET] socket: cod... |
1311 1312 1313 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock) { |
8efa6e93c [NETNS]: Introduc... |
1314 |
somaxconn = sock_net(sock->sk)->core.sysctl_somaxconn; |
95c961747 net: cleanup unsi... |
1315 |
if ((unsigned int)backlog > somaxconn) |
b8e1f9b5c [NET] sysctl: mak... |
1316 |
backlog = somaxconn; |
1da177e4c Linux-2.6.12-rc2 |
1317 1318 |
err = security_socket_listen(sock, backlog); |
6cb153cab [NET]: use fget_l... |
1319 1320 |
if (!err) err = sock->ops->listen(sock, backlog); |
1da177e4c Linux-2.6.12-rc2 |
1321 |
|
6cb153cab [NET]: use fget_l... |
1322 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1323 1324 1325 |
} return err; } |
1da177e4c Linux-2.6.12-rc2 |
1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 |
/* * 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 * clean when we restucture accept also. */ |
20f37034f [CVE-2009-0029] S... |
1337 1338 |
SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1339 1340 |
{ struct socket *sock, *newsock; |
39d8c1b6f [NET]: Do not los... |
1341 |
struct file *newfile; |
6cb153cab [NET]: use fget_l... |
1342 |
int err, len, newfd, fput_needed; |
230b18392 net: Use standard... |
1343 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1344 |
|
77d272005 flag parameters: ... |
1345 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
aaca0bdca flag parameters: ... |
1346 1347 1348 1349 |
return -EINVAL; if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
6cb153cab [NET]: use fget_l... |
1350 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1351 1352 1353 1354 |
if (!sock) goto out; err = -ENFILE; |
c6d409cfd From abbffa2aa9bd... |
1355 1356 |
newsock = sock_alloc(); if (!newsock) |
1da177e4c Linux-2.6.12-rc2 |
1357 1358 1359 1360 |
goto out_put; newsock->type = sock->type; newsock->ops = sock->ops; |
1da177e4c Linux-2.6.12-rc2 |
1361 1362 1363 1364 1365 |
/* * 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... |
1366 |
newfd = get_unused_fd_flags(flags); |
39d8c1b6f [NET]: Do not los... |
1367 1368 |
if (unlikely(newfd < 0)) { err = newfd; |
9a1875e60 [NET]: Fully fix ... |
1369 1370 |
sock_release(newsock); goto out_put; |
39d8c1b6f [NET]: Do not los... |
1371 |
} |
aab174f0d Merge branch 'for... |
1372 |
newfile = sock_alloc_file(newsock, flags, sock->sk->sk_prot_creator->name); |
b5ffe6344 net: Drop unlikel... |
1373 |
if (IS_ERR(newfile)) { |
284076305 take descriptor h... |
1374 1375 1376 1377 1378 |
err = PTR_ERR(newfile); put_unused_fd(newfd); sock_release(newsock); goto out_put; } |
39d8c1b6f [NET]: Do not los... |
1379 |
|
a79af59ef [NET]: Fix module... |
1380 1381 |
err = security_socket_accept(sock, newsock); if (err) |
39d8c1b6f [NET]: Do not los... |
1382 |
goto out_fd; |
a79af59ef [NET]: Fix module... |
1383 |
|
1da177e4c Linux-2.6.12-rc2 |
1384 1385 |
err = sock->ops->accept(sock, newsock, sock->file->f_flags); if (err < 0) |
39d8c1b6f [NET]: Do not los... |
1386 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1387 1388 |
if (upeer_sockaddr) { |
230b18392 net: Use standard... |
1389 |
if (newsock->ops->getname(newsock, (struct sockaddr *)&address, |
89bddce58 [NET] socket: cod... |
1390 |
&len, 2) < 0) { |
1da177e4c Linux-2.6.12-rc2 |
1391 |
err = -ECONNABORTED; |
39d8c1b6f [NET]: Do not los... |
1392 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1393 |
} |
43db362d3 net: get rid of s... |
1394 |
err = move_addr_to_user(&address, |
230b18392 net: Use standard... |
1395 |
len, upeer_sockaddr, upeer_addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1396 |
if (err < 0) |
39d8c1b6f [NET]: Do not los... |
1397 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1398 1399 1400 |
} /* File flags are not inherited via accept() unlike another OSes. */ |
39d8c1b6f [NET]: Do not los... |
1401 1402 |
fd_install(newfd, newfile); err = newfd; |
1da177e4c Linux-2.6.12-rc2 |
1403 |
|
1da177e4c Linux-2.6.12-rc2 |
1404 |
out_put: |
6cb153cab [NET]: use fget_l... |
1405 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1406 1407 |
out: return err; |
39d8c1b6f [NET]: Do not los... |
1408 |
out_fd: |
9606a2163 [NET]: Fix dentry... |
1409 |
fput(newfile); |
39d8c1b6f [NET]: Do not los... |
1410 |
put_unused_fd(newfd); |
1da177e4c Linux-2.6.12-rc2 |
1411 1412 |
goto out_put; } |
20f37034f [CVE-2009-0029] S... |
1413 1414 |
SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen) |
aaca0bdca flag parameters: ... |
1415 |
{ |
de11defeb reintroduce accept4 |
1416 |
return sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0); |
aaca0bdca flag parameters: ... |
1417 |
} |
1da177e4c Linux-2.6.12-rc2 |
1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 |
/* * 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. */ |
20f37034f [CVE-2009-0029] S... |
1429 1430 |
SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen) |
1da177e4c Linux-2.6.12-rc2 |
1431 1432 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1433 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1434 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1435 |
|
6cb153cab [NET]: use fget_l... |
1436 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1437 1438 |
if (!sock) goto out; |
43db362d3 net: get rid of s... |
1439 |
err = move_addr_to_kernel(uservaddr, addrlen, &address); |
1da177e4c Linux-2.6.12-rc2 |
1440 1441 |
if (err < 0) goto out_put; |
89bddce58 [NET] socket: cod... |
1442 |
err = |
230b18392 net: Use standard... |
1443 |
security_socket_connect(sock, (struct sockaddr *)&address, addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1444 1445 |
if (err) goto out_put; |
230b18392 net: Use standard... |
1446 |
err = sock->ops->connect(sock, (struct sockaddr *)&address, addrlen, |
1da177e4c Linux-2.6.12-rc2 |
1447 1448 |
sock->file->f_flags); out_put: |
6cb153cab [NET]: use fget_l... |
1449 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1450 1451 1452 1453 1454 1455 1456 1457 |
out: return err; } /* * Get the local address ('name') of a socket object. Move the obtained * name to user space. */ |
20f37034f [CVE-2009-0029] S... |
1458 1459 |
SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len) |
1da177e4c Linux-2.6.12-rc2 |
1460 1461 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1462 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1463 |
int len, err, fput_needed; |
89bddce58 [NET] socket: cod... |
1464 |
|
6cb153cab [NET]: use fget_l... |
1465 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1466 1467 1468 1469 1470 1471 |
if (!sock) goto out; err = security_socket_getsockname(sock); if (err) goto out_put; |
230b18392 net: Use standard... |
1472 |
err = sock->ops->getname(sock, (struct sockaddr *)&address, &len, 0); |
1da177e4c Linux-2.6.12-rc2 |
1473 1474 |
if (err) goto out_put; |
43db362d3 net: get rid of s... |
1475 |
err = move_addr_to_user(&address, len, usockaddr, usockaddr_len); |
1da177e4c Linux-2.6.12-rc2 |
1476 1477 |
out_put: |
6cb153cab [NET]: use fget_l... |
1478 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1479 1480 1481 1482 1483 1484 1485 1486 |
out: return err; } /* * Get the remote address ('name') of a socket object. Move the obtained * name to user space. */ |
20f37034f [CVE-2009-0029] S... |
1487 1488 |
SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len) |
1da177e4c Linux-2.6.12-rc2 |
1489 1490 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1491 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1492 |
int len, err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1493 |
|
89bddce58 [NET] socket: cod... |
1494 1495 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
1da177e4c Linux-2.6.12-rc2 |
1496 1497 |
err = security_socket_getpeername(sock); if (err) { |
6cb153cab [NET]: use fget_l... |
1498 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1499 1500 |
return err; } |
89bddce58 [NET] socket: cod... |
1501 |
err = |
230b18392 net: Use standard... |
1502 |
sock->ops->getname(sock, (struct sockaddr *)&address, &len, |
89bddce58 [NET] socket: cod... |
1503 |
1); |
1da177e4c Linux-2.6.12-rc2 |
1504 |
if (!err) |
43db362d3 net: get rid of s... |
1505 |
err = move_addr_to_user(&address, len, usockaddr, |
89bddce58 [NET] socket: cod... |
1506 |
usockaddr_len); |
6cb153cab [NET]: use fget_l... |
1507 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1508 1509 1510 1511 1512 1513 1514 1515 1516 |
} return err; } /* * 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. */ |
3e0fa65f8 [CVE-2009-0029] S... |
1517 |
SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len, |
95c961747 net: cleanup unsi... |
1518 |
unsigned int, flags, struct sockaddr __user *, addr, |
3e0fa65f8 [CVE-2009-0029] S... |
1519 |
int, addr_len) |
1da177e4c Linux-2.6.12-rc2 |
1520 1521 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1522 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1523 1524 1525 |
int err; struct msghdr msg; struct iovec iov; |
6cb153cab [NET]: use fget_l... |
1526 |
int fput_needed; |
6cb153cab [NET]: use fget_l... |
1527 |
|
602bd0e90 net: switch sendt... |
1528 1529 1530 |
err = import_single_range(WRITE, buff, len, &iov, &msg.msg_iter); if (unlikely(err)) return err; |
de0fa95c1 [NET]: Use sockfd... |
1531 1532 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) |
4387ff75f [NET]: Fix net/so... |
1533 |
goto out; |
6cb153cab [NET]: use fget_l... |
1534 |
|
89bddce58 [NET] socket: cod... |
1535 |
msg.msg_name = NULL; |
89bddce58 [NET] socket: cod... |
1536 1537 1538 |
msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_namelen = 0; |
6cb153cab [NET]: use fget_l... |
1539 |
if (addr) { |
43db362d3 net: get rid of s... |
1540 |
err = move_addr_to_kernel(addr, addr_len, &address); |
1da177e4c Linux-2.6.12-rc2 |
1541 1542 |
if (err < 0) goto out_put; |
230b18392 net: Use standard... |
1543 |
msg.msg_name = (struct sockaddr *)&address; |
89bddce58 [NET] socket: cod... |
1544 |
msg.msg_namelen = addr_len; |
1da177e4c Linux-2.6.12-rc2 |
1545 1546 1547 1548 |
} if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; msg.msg_flags = flags; |
d8725c86a get rid of the si... |
1549 |
err = sock_sendmsg(sock, &msg); |
1da177e4c Linux-2.6.12-rc2 |
1550 |
|
89bddce58 [NET] socket: cod... |
1551 |
out_put: |
de0fa95c1 [NET]: Use sockfd... |
1552 |
fput_light(sock->file, fput_needed); |
4387ff75f [NET]: Fix net/so... |
1553 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1554 1555 1556 1557 |
return err; } /* |
89bddce58 [NET] socket: cod... |
1558 |
* Send a datagram down a socket. |
1da177e4c Linux-2.6.12-rc2 |
1559 |
*/ |
3e0fa65f8 [CVE-2009-0029] S... |
1560 |
SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len, |
95c961747 net: cleanup unsi... |
1561 |
unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1562 1563 1564 1565 1566 |
{ return sys_sendto(fd, buff, len, flags, NULL, 0); } /* |
89bddce58 [NET] socket: cod... |
1567 |
* Receive a frame from the socket and optionally record the address of the |
1da177e4c Linux-2.6.12-rc2 |
1568 1569 1570 |
* sender. We verify the buffers are writable and if needed move the * sender address from kernel to user space. */ |
3e0fa65f8 [CVE-2009-0029] S... |
1571 |
SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size, |
95c961747 net: cleanup unsi... |
1572 |
unsigned int, flags, struct sockaddr __user *, addr, |
3e0fa65f8 [CVE-2009-0029] S... |
1573 |
int __user *, addr_len) |
1da177e4c Linux-2.6.12-rc2 |
1574 1575 1576 1577 |
{ struct socket *sock; struct iovec iov; struct msghdr msg; |
230b18392 net: Use standard... |
1578 |
struct sockaddr_storage address; |
89bddce58 [NET] socket: cod... |
1579 |
int err, err2; |
6cb153cab [NET]: use fget_l... |
1580 |
int fput_needed; |
602bd0e90 net: switch sendt... |
1581 1582 1583 |
err = import_single_range(READ, ubuf, size, &iov, &msg.msg_iter); if (unlikely(err)) return err; |
de0fa95c1 [NET]: Use sockfd... |
1584 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1585 |
if (!sock) |
de0fa95c1 [NET]: Use sockfd... |
1586 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
1587 |
|
89bddce58 [NET] socket: cod... |
1588 1589 |
msg.msg_control = NULL; msg.msg_controllen = 0; |
f3d334260 net: rework recvm... |
1590 1591 1592 1593 |
/* 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... |
1594 |
msg.msg_iocb = NULL; |
1da177e4c Linux-2.6.12-rc2 |
1595 1596 |
if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; |
2da62906b [net] drop 'size'... |
1597 |
err = sock_recvmsg(sock, &msg, flags); |
1da177e4c Linux-2.6.12-rc2 |
1598 |
|
89bddce58 [NET] socket: cod... |
1599 |
if (err >= 0 && addr != NULL) { |
43db362d3 net: get rid of s... |
1600 |
err2 = move_addr_to_user(&address, |
230b18392 net: Use standard... |
1601 |
msg.msg_namelen, addr, addr_len); |
89bddce58 [NET] socket: cod... |
1602 1603 |
if (err2 < 0) err = err2; |
1da177e4c Linux-2.6.12-rc2 |
1604 |
} |
de0fa95c1 [NET]: Use sockfd... |
1605 1606 |
fput_light(sock->file, fput_needed); |
4387ff75f [NET]: Fix net/so... |
1607 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1608 1609 1610 1611 |
return err; } /* |
89bddce58 [NET] socket: cod... |
1612 |
* Receive a datagram from a socket. |
1da177e4c Linux-2.6.12-rc2 |
1613 |
*/ |
b7c0ddf5f net: use SYSCALL_... |
1614 1615 |
SYSCALL_DEFINE4(recv, int, fd, void __user *, ubuf, size_t, size, unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1616 1617 1618 1619 1620 1621 1622 1623 |
{ return sys_recvfrom(fd, ubuf, size, flags, NULL, NULL); } /* * 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. */ |
20f37034f [CVE-2009-0029] S... |
1624 1625 |
SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname, char __user *, optval, int, optlen) |
1da177e4c Linux-2.6.12-rc2 |
1626 |
{ |
6cb153cab [NET]: use fget_l... |
1627 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1628 1629 1630 1631 |
struct socket *sock; if (optlen < 0) return -EINVAL; |
89bddce58 [NET] socket: cod... |
1632 1633 1634 1635 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { err = security_socket_setsockopt(sock, level, optname); |
6cb153cab [NET]: use fget_l... |
1636 1637 |
if (err) goto out_put; |
1da177e4c Linux-2.6.12-rc2 |
1638 1639 |
if (level == SOL_SOCKET) |
89bddce58 [NET] socket: cod... |
1640 1641 1642 |
err = sock_setsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
1643 |
else |
89bddce58 [NET] socket: cod... |
1644 1645 1646 |
err = sock->ops->setsockopt(sock, level, optname, optval, optlen); |
6cb153cab [NET]: use fget_l... |
1647 1648 |
out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1649 1650 1651 1652 1653 1654 1655 1656 |
} return err; } /* * 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. */ |
20f37034f [CVE-2009-0029] S... |
1657 1658 |
SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname, char __user *, optval, int __user *, optlen) |
1da177e4c Linux-2.6.12-rc2 |
1659 |
{ |
6cb153cab [NET]: use fget_l... |
1660 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1661 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
1662 1663 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
6cb153cab [NET]: use fget_l... |
1664 1665 1666 |
err = security_socket_getsockopt(sock, level, optname); if (err) goto out_put; |
1da177e4c Linux-2.6.12-rc2 |
1667 1668 |
if (level == SOL_SOCKET) |
89bddce58 [NET] socket: cod... |
1669 1670 1671 |
err = sock_getsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
1672 |
else |
89bddce58 [NET] socket: cod... |
1673 1674 1675 |
err = sock->ops->getsockopt(sock, level, optname, optval, optlen); |
6cb153cab [NET]: use fget_l... |
1676 1677 |
out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1678 1679 1680 |
} return err; } |
1da177e4c Linux-2.6.12-rc2 |
1681 1682 1683 |
/* * Shutdown a socket. */ |
754fe8d29 [CVE-2009-0029] S... |
1684 |
SYSCALL_DEFINE2(shutdown, int, fd, int, how) |
1da177e4c Linux-2.6.12-rc2 |
1685 |
{ |
6cb153cab [NET]: use fget_l... |
1686 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1687 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
1688 1689 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
1da177e4c Linux-2.6.12-rc2 |
1690 |
err = security_socket_shutdown(sock, how); |
6cb153cab [NET]: use fget_l... |
1691 1692 1693 |
if (!err) err = sock->ops->shutdown(sock, how); fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1694 1695 1696 |
} return err; } |
89bddce58 [NET] socket: cod... |
1697 |
/* A couple of helpful macros for getting the address of the 32/64 bit |
1da177e4c Linux-2.6.12-rc2 |
1698 1699 1700 1701 1702 |
* 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... |
1703 1704 1705 1706 |
struct used_address { struct sockaddr_storage name; unsigned int name_len; }; |
da1842849 net: switch impor... |
1707 1708 1709 1710 |
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... |
1711 |
{ |
08adb7dab fold verify_iovec... |
1712 1713 |
struct sockaddr __user *uaddr; struct iovec __user *uiov; |
c0371da60 put iov_iter into... |
1714 |
size_t nr_segs; |
08adb7dab fold verify_iovec... |
1715 1716 1717 1718 1719 1720 |
ssize_t err; if (!access_ok(VERIFY_READ, umsg, sizeof(*umsg)) || __get_user(uaddr, &umsg->msg_name) || __get_user(kmsg->msg_namelen, &umsg->msg_namelen) || __get_user(uiov, &umsg->msg_iov) || |
c0371da60 put iov_iter into... |
1721 |
__get_user(nr_segs, &umsg->msg_iovlen) || |
08adb7dab fold verify_iovec... |
1722 1723 1724 |
__get_user(kmsg->msg_control, &umsg->msg_control) || __get_user(kmsg->msg_controllen, &umsg->msg_controllen) || __get_user(kmsg->msg_flags, &umsg->msg_flags)) |
1661bf364 net: heap overflo... |
1725 |
return -EFAULT; |
dbb490b96 net: socket: erro... |
1726 |
|
08adb7dab fold verify_iovec... |
1727 |
if (!uaddr) |
6a2a2b3ae net:socket: set m... |
1728 |
kmsg->msg_namelen = 0; |
dbb490b96 net: socket: erro... |
1729 1730 |
if (kmsg->msg_namelen < 0) return -EINVAL; |
1661bf364 net: heap overflo... |
1731 |
if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) |
db31c55a6 net: clamp ->msg_... |
1732 |
kmsg->msg_namelen = sizeof(struct sockaddr_storage); |
08adb7dab fold verify_iovec... |
1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 |
if (save_addr) *save_addr = uaddr; if (uaddr && kmsg->msg_namelen) { if (!save_addr) { err = move_addr_to_kernel(uaddr, kmsg->msg_namelen, kmsg->msg_name); if (err < 0) return err; } } else { kmsg->msg_name = NULL; kmsg->msg_namelen = 0; } |
c0371da60 put iov_iter into... |
1748 |
if (nr_segs > UIO_MAXIOV) |
08adb7dab fold verify_iovec... |
1749 |
return -EMSGSIZE; |
0345f9313 net: socket: add ... |
1750 |
kmsg->msg_iocb = NULL; |
da1842849 net: switch impor... |
1751 1752 |
return import_iovec(save_addr ? READ : WRITE, uiov, nr_segs, UIO_FASTIOV, iov, &kmsg->msg_iter); |
1661bf364 net: heap overflo... |
1753 |
} |
666547ff5 separate kernel- ... |
1754 |
static int ___sys_sendmsg(struct socket *sock, struct user_msghdr __user *msg, |
95c961747 net: cleanup unsi... |
1755 |
struct msghdr *msg_sys, unsigned int flags, |
28a94d8fb net: Allow MSG_EO... |
1756 1757 |
struct used_address *used_address, unsigned int allowed_msghdr_flags) |
1da177e4c Linux-2.6.12-rc2 |
1758 |
{ |
89bddce58 [NET] socket: cod... |
1759 1760 |
struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; |
230b18392 net: Use standard... |
1761 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1762 |
struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; |
b9d717a7b [NET]: Make sure ... |
1763 |
unsigned char ctl[sizeof(struct cmsghdr) + 20] |
89bddce58 [NET] socket: cod... |
1764 1765 |
__attribute__ ((aligned(sizeof(__kernel_size_t)))); /* 20 is size of ipv6_pktinfo */ |
1da177e4c Linux-2.6.12-rc2 |
1766 |
unsigned char *ctl_buf = ctl; |
d8725c86a get rid of the si... |
1767 |
int ctl_len; |
08adb7dab fold verify_iovec... |
1768 |
ssize_t err; |
89bddce58 [NET] socket: cod... |
1769 |
|
08adb7dab fold verify_iovec... |
1770 |
msg_sys->msg_name = &address; |
1da177e4c Linux-2.6.12-rc2 |
1771 |
|
084493200 {compat_,}verify_... |
1772 |
if (MSG_CMSG_COMPAT & flags) |
08adb7dab fold verify_iovec... |
1773 |
err = get_compat_msghdr(msg_sys, msg_compat, NULL, &iov); |
084493200 {compat_,}verify_... |
1774 |
else |
08adb7dab fold verify_iovec... |
1775 |
err = copy_msghdr_from_user(msg_sys, msg, NULL, &iov); |
89bddce58 [NET] socket: cod... |
1776 |
if (err < 0) |
da1842849 net: switch impor... |
1777 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
1778 1779 |
err = -ENOBUFS; |
228e548e6 net: Add sendmmsg... |
1780 |
if (msg_sys->msg_controllen > INT_MAX) |
1da177e4c Linux-2.6.12-rc2 |
1781 |
goto out_freeiov; |
28a94d8fb net: Allow MSG_EO... |
1782 |
flags |= (msg_sys->msg_flags & allowed_msghdr_flags); |
228e548e6 net: Add sendmmsg... |
1783 |
ctl_len = msg_sys->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
1784 |
if ((MSG_CMSG_COMPAT & flags) && ctl_len) { |
89bddce58 [NET] socket: cod... |
1785 |
err = |
228e548e6 net: Add sendmmsg... |
1786 |
cmsghdr_from_user_compat_to_kern(msg_sys, sock->sk, ctl, |
89bddce58 [NET] socket: cod... |
1787 |
sizeof(ctl)); |
1da177e4c Linux-2.6.12-rc2 |
1788 1789 |
if (err) goto out_freeiov; |
228e548e6 net: Add sendmmsg... |
1790 1791 |
ctl_buf = msg_sys->msg_control; ctl_len = msg_sys->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
1792 |
} else if (ctl_len) { |
89bddce58 [NET] socket: cod... |
1793 |
if (ctl_len > sizeof(ctl)) { |
1da177e4c Linux-2.6.12-rc2 |
1794 |
ctl_buf = sock_kmalloc(sock->sk, ctl_len, GFP_KERNEL); |
89bddce58 [NET] socket: cod... |
1795 |
if (ctl_buf == NULL) |
1da177e4c Linux-2.6.12-rc2 |
1796 1797 1798 1799 |
goto out_freeiov; } err = -EFAULT; /* |
228e548e6 net: Add sendmmsg... |
1800 |
* Careful! Before this, msg_sys->msg_control contains a user pointer. |
1da177e4c Linux-2.6.12-rc2 |
1801 1802 1803 |
* Afterwards, it will be a kernel pointer. Thus the compiler-assisted * checking falls down on this. */ |
fb8621bb6 net: remove addre... |
1804 |
if (copy_from_user(ctl_buf, |
228e548e6 net: Add sendmmsg... |
1805 |
(void __user __force *)msg_sys->msg_control, |
89bddce58 [NET] socket: cod... |
1806 |
ctl_len)) |
1da177e4c Linux-2.6.12-rc2 |
1807 |
goto out_freectl; |
228e548e6 net: Add sendmmsg... |
1808 |
msg_sys->msg_control = ctl_buf; |
1da177e4c Linux-2.6.12-rc2 |
1809 |
} |
228e548e6 net: Add sendmmsg... |
1810 |
msg_sys->msg_flags = flags; |
1da177e4c Linux-2.6.12-rc2 |
1811 1812 |
if (sock->file->f_flags & O_NONBLOCK) |
228e548e6 net: Add sendmmsg... |
1813 |
msg_sys->msg_flags |= MSG_DONTWAIT; |
c71d8ebe7 net: Fix security... |
1814 1815 1816 1817 1818 1819 |
/* * 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:... |
1820 1821 1822 |
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... |
1823 |
used_address->name_len)) { |
d8725c86a get rid of the si... |
1824 |
err = sock_sendmsg_nosec(sock, msg_sys); |
c71d8ebe7 net: Fix security... |
1825 1826 |
goto out_freectl; } |
d8725c86a get rid of the si... |
1827 |
err = sock_sendmsg(sock, msg_sys); |
c71d8ebe7 net: Fix security... |
1828 1829 1830 1831 1832 1833 |
/* * 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:... |
1834 1835 1836 |
if (msg_sys->msg_name) memcpy(&used_address->name, msg_sys->msg_name, used_address->name_len); |
c71d8ebe7 net: Fix security... |
1837 |
} |
1da177e4c Linux-2.6.12-rc2 |
1838 1839 |
out_freectl: |
89bddce58 [NET] socket: cod... |
1840 |
if (ctl_buf != ctl) |
1da177e4c Linux-2.6.12-rc2 |
1841 1842 |
sock_kfree_s(sock->sk, ctl_buf, ctl_len); out_freeiov: |
da1842849 net: switch impor... |
1843 |
kfree(iov); |
228e548e6 net: Add sendmmsg... |
1844 1845 1846 1847 1848 1849 |
return err; } /* * BSD sendmsg interface */ |
666547ff5 separate kernel- ... |
1850 |
long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags) |
228e548e6 net: Add sendmmsg... |
1851 1852 1853 |
{ int fput_needed, err; struct msghdr msg_sys; |
1be374a05 net: Block MSG_CM... |
1854 |
struct socket *sock; |
1be374a05 net: Block MSG_CM... |
1855 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
228e548e6 net: Add sendmmsg... |
1856 1857 |
if (!sock) goto out; |
28a94d8fb net: Allow MSG_EO... |
1858 |
err = ___sys_sendmsg(sock, msg, &msg_sys, flags, NULL, 0); |
228e548e6 net: Add sendmmsg... |
1859 |
|
6cb153cab [NET]: use fget_l... |
1860 |
fput_light(sock->file, fput_needed); |
89bddce58 [NET] socket: cod... |
1861 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1862 1863 |
return err; } |
666547ff5 separate kernel- ... |
1864 |
SYSCALL_DEFINE3(sendmsg, int, fd, struct user_msghdr __user *, msg, unsigned int, flags) |
a7526eb5d net: Unbreak comp... |
1865 1866 1867 1868 1869 |
{ if (flags & MSG_CMSG_COMPAT) return -EINVAL; return __sys_sendmsg(fd, msg, flags); } |
228e548e6 net: Add sendmmsg... |
1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 |
/* * Linux sendmmsg interface */ int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, unsigned int flags) { 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... |
1882 |
struct used_address used_address; |
f092276d8 net: Add MSG_BATC... |
1883 |
unsigned int oflags = flags; |
228e548e6 net: Add sendmmsg... |
1884 |
|
98382f419 net: Cap number o... |
1885 1886 |
if (vlen > UIO_MAXIOV) vlen = UIO_MAXIOV; |
228e548e6 net: Add sendmmsg... |
1887 1888 1889 1890 1891 1892 |
datagrams = 0; sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) return err; |
c71d8ebe7 net: Fix security... |
1893 |
used_address.name_len = UINT_MAX; |
228e548e6 net: Add sendmmsg... |
1894 1895 |
entry = mmsg; compat_entry = (struct compat_mmsghdr __user *)mmsg; |
728ffb86f net: sendmmsg sho... |
1896 |
err = 0; |
f092276d8 net: Add MSG_BATC... |
1897 |
flags |= MSG_BATCH; |
228e548e6 net: Add sendmmsg... |
1898 1899 |
while (datagrams < vlen) { |
f092276d8 net: Add MSG_BATC... |
1900 1901 |
if (datagrams == vlen - 1) flags = oflags; |
228e548e6 net: Add sendmmsg... |
1902 |
if (MSG_CMSG_COMPAT & flags) { |
666547ff5 separate kernel- ... |
1903 |
err = ___sys_sendmsg(sock, (struct user_msghdr __user *)compat_entry, |
28a94d8fb net: Allow MSG_EO... |
1904 |
&msg_sys, flags, &used_address, MSG_EOR); |
228e548e6 net: Add sendmmsg... |
1905 1906 1907 1908 1909 |
if (err < 0) break; err = __put_user(err, &compat_entry->msg_len); ++compat_entry; } else { |
a7526eb5d net: Unbreak comp... |
1910 |
err = ___sys_sendmsg(sock, |
666547ff5 separate kernel- ... |
1911 |
(struct user_msghdr __user *)entry, |
28a94d8fb net: Allow MSG_EO... |
1912 |
&msg_sys, flags, &used_address, MSG_EOR); |
228e548e6 net: Add sendmmsg... |
1913 1914 1915 1916 1917 1918 1919 1920 1921 |
if (err < 0) break; err = put_user(err, &entry->msg_len); ++entry; } if (err) break; ++datagrams; |
a78cb84c6 net: add scheduli... |
1922 |
cond_resched(); |
228e548e6 net: Add sendmmsg... |
1923 |
} |
228e548e6 net: Add sendmmsg... |
1924 |
fput_light(sock->file, fput_needed); |
728ffb86f net: sendmmsg sho... |
1925 1926 |
/* We only return an error if no datagrams were able to be sent */ if (datagrams != 0) |
228e548e6 net: Add sendmmsg... |
1927 |
return datagrams; |
228e548e6 net: Add sendmmsg... |
1928 1929 1930 1931 1932 1933 |
return err; } SYSCALL_DEFINE4(sendmmsg, int, fd, struct mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags) { |
1be374a05 net: Block MSG_CM... |
1934 1935 |
if (flags & MSG_CMSG_COMPAT) return -EINVAL; |
228e548e6 net: Add sendmmsg... |
1936 1937 |
return __sys_sendmmsg(fd, mmsg, vlen, flags); } |
666547ff5 separate kernel- ... |
1938 |
static int ___sys_recvmsg(struct socket *sock, struct user_msghdr __user *msg, |
95c961747 net: cleanup unsi... |
1939 |
struct msghdr *msg_sys, unsigned int flags, int nosec) |
1da177e4c Linux-2.6.12-rc2 |
1940 |
{ |
89bddce58 [NET] socket: cod... |
1941 1942 |
struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; |
1da177e4c Linux-2.6.12-rc2 |
1943 |
struct iovec iovstack[UIO_FASTIOV]; |
89bddce58 [NET] socket: cod... |
1944 |
struct iovec *iov = iovstack; |
1da177e4c Linux-2.6.12-rc2 |
1945 |
unsigned long cmsg_ptr; |
2da62906b [net] drop 'size'... |
1946 |
int len; |
08adb7dab fold verify_iovec... |
1947 |
ssize_t err; |
1da177e4c Linux-2.6.12-rc2 |
1948 1949 |
/* kernel mode address */ |
230b18392 net: Use standard... |
1950 |
struct sockaddr_storage addr; |
1da177e4c Linux-2.6.12-rc2 |
1951 1952 1953 |
/* user mode address pointers */ struct sockaddr __user *uaddr; |
08adb7dab fold verify_iovec... |
1954 |
int __user *uaddr_len = COMPAT_NAMELEN(msg); |
89bddce58 [NET] socket: cod... |
1955 |
|
08adb7dab fold verify_iovec... |
1956 |
msg_sys->msg_name = &addr; |
1da177e4c Linux-2.6.12-rc2 |
1957 |
|
f3d334260 net: rework recvm... |
1958 |
if (MSG_CMSG_COMPAT & flags) |
08adb7dab fold verify_iovec... |
1959 |
err = get_compat_msghdr(msg_sys, msg_compat, &uaddr, &iov); |
f3d334260 net: rework recvm... |
1960 |
else |
08adb7dab fold verify_iovec... |
1961 |
err = copy_msghdr_from_user(msg_sys, msg, &uaddr, &iov); |
1da177e4c Linux-2.6.12-rc2 |
1962 |
if (err < 0) |
da1842849 net: switch impor... |
1963 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
1964 |
|
a2e272554 net: Introduce re... |
1965 1966 |
cmsg_ptr = (unsigned long)msg_sys->msg_control; msg_sys->msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT); |
89bddce58 [NET] socket: cod... |
1967 |
|
f3d334260 net: rework recvm... |
1968 1969 |
/* We assume all kernel code knows the size of sockaddr_storage */ msg_sys->msg_namelen = 0; |
1da177e4c Linux-2.6.12-rc2 |
1970 1971 |
if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; |
2da62906b [net] drop 'size'... |
1972 |
err = (nosec ? sock_recvmsg_nosec : sock_recvmsg)(sock, msg_sys, flags); |
1da177e4c Linux-2.6.12-rc2 |
1973 1974 1975 1976 1977 |
if (err < 0) goto out_freeiov; len = err; if (uaddr != NULL) { |
43db362d3 net: get rid of s... |
1978 |
err = move_addr_to_user(&addr, |
a2e272554 net: Introduce re... |
1979 |
msg_sys->msg_namelen, uaddr, |
89bddce58 [NET] socket: cod... |
1980 |
uaddr_len); |
1da177e4c Linux-2.6.12-rc2 |
1981 1982 1983 |
if (err < 0) goto out_freeiov; } |
a2e272554 net: Introduce re... |
1984 |
err = __put_user((msg_sys->msg_flags & ~MSG_CMSG_COMPAT), |
37f7f421c [NET]: Do not lea... |
1985 |
COMPAT_FLAGS(msg)); |
1da177e4c Linux-2.6.12-rc2 |
1986 1987 1988 |
if (err) goto out_freeiov; if (MSG_CMSG_COMPAT & flags) |
a2e272554 net: Introduce re... |
1989 |
err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, |
1da177e4c Linux-2.6.12-rc2 |
1990 1991 |
&msg_compat->msg_controllen); else |
a2e272554 net: Introduce re... |
1992 |
err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, |
1da177e4c Linux-2.6.12-rc2 |
1993 1994 1995 1996 1997 1998 |
&msg->msg_controllen); if (err) goto out_freeiov; err = len; out_freeiov: |
da1842849 net: switch impor... |
1999 |
kfree(iov); |
a2e272554 net: Introduce re... |
2000 2001 2002 2003 2004 2005 |
return err; } /* * BSD recvmsg interface */ |
666547ff5 separate kernel- ... |
2006 |
long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags) |
a2e272554 net: Introduce re... |
2007 2008 2009 |
{ int fput_needed, err; struct msghdr msg_sys; |
1be374a05 net: Block MSG_CM... |
2010 |
struct socket *sock; |
1be374a05 net: Block MSG_CM... |
2011 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
a2e272554 net: Introduce re... |
2012 2013 |
if (!sock) goto out; |
a7526eb5d net: Unbreak comp... |
2014 |
err = ___sys_recvmsg(sock, msg, &msg_sys, flags, 0); |
a2e272554 net: Introduce re... |
2015 |
|
6cb153cab [NET]: use fget_l... |
2016 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
2017 2018 2019 |
out: return err; } |
666547ff5 separate kernel- ... |
2020 |
SYSCALL_DEFINE3(recvmsg, int, fd, struct user_msghdr __user *, msg, |
a7526eb5d net: Unbreak comp... |
2021 2022 2023 2024 2025 2026 |
unsigned int, flags) { if (flags & MSG_CMSG_COMPAT) return -EINVAL; return __sys_recvmsg(fd, msg, flags); } |
a2e272554 net: Introduce re... |
2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 |
/* * 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... |
2037 |
struct compat_mmsghdr __user *compat_entry; |
a2e272554 net: Introduce re... |
2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 |
struct msghdr msg_sys; struct timespec end_time; 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; err = sock_error(sock->sk); if (err) goto out_put; entry = mmsg; |
d7256d0eb net: compat_mmsgh... |
2057 |
compat_entry = (struct compat_mmsghdr __user *)mmsg; |
a2e272554 net: Introduce re... |
2058 2059 2060 2061 2062 |
while (datagrams < vlen) { /* * No need to ask LSM for more than the first datagram. */ |
d7256d0eb net: compat_mmsgh... |
2063 |
if (MSG_CMSG_COMPAT & flags) { |
666547ff5 separate kernel- ... |
2064 |
err = ___sys_recvmsg(sock, (struct user_msghdr __user *)compat_entry, |
a7526eb5d net: Unbreak comp... |
2065 2066 |
&msg_sys, flags & ~MSG_WAITFORONE, datagrams); |
d7256d0eb net: compat_mmsgh... |
2067 2068 2069 2070 2071 |
if (err < 0) break; err = __put_user(err, &compat_entry->msg_len); ++compat_entry; } else { |
a7526eb5d net: Unbreak comp... |
2072 |
err = ___sys_recvmsg(sock, |
666547ff5 separate kernel- ... |
2073 |
(struct user_msghdr __user *)entry, |
a7526eb5d net: Unbreak comp... |
2074 2075 |
&msg_sys, flags & ~MSG_WAITFORONE, datagrams); |
d7256d0eb net: compat_mmsgh... |
2076 2077 2078 2079 2080 |
if (err < 0) break; err = put_user(err, &entry->msg_len); ++entry; } |
a2e272554 net: Introduce re... |
2081 2082 |
if (err) break; |
a2e272554 net: Introduce re... |
2083 |
++datagrams; |
71c5c1595 net: Add MSG_WAIT... |
2084 2085 2086 |
/* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */ if (flags & MSG_WAITFORONE) flags |= MSG_DONTWAIT; |
a2e272554 net: Introduce re... |
2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 |
if (timeout) { ktime_get_ts(timeout); *timeout = timespec_sub(end_time, *timeout); 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... |
2103 |
cond_resched(); |
a2e272554 net: Introduce re... |
2104 |
} |
a2e272554 net: Introduce re... |
2105 |
if (err == 0) |
34b88a68f net: Fix use afte... |
2106 2107 2108 2109 2110 2111 |
goto out_put; if (datagrams == 0) { datagrams = err; goto out_put; } |
a2e272554 net: Introduce re... |
2112 |
|
34b88a68f net: Fix use afte... |
2113 2114 2115 2116 2117 |
/* * 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... |
2118 |
/* |
34b88a68f net: Fix use afte... |
2119 2120 2121 2122 |
* ... 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... |
2123 |
*/ |
34b88a68f net: Fix use afte... |
2124 |
sock->sk->sk_err = -err; |
a2e272554 net: Introduce re... |
2125 |
} |
34b88a68f net: Fix use afte... |
2126 2127 |
out_put: fput_light(sock->file, fput_needed); |
a2e272554 net: Introduce re... |
2128 |
|
34b88a68f net: Fix use afte... |
2129 |
return datagrams; |
a2e272554 net: Introduce re... |
2130 2131 2132 2133 2134 2135 2136 2137 |
} SYSCALL_DEFINE5(recvmmsg, int, fd, struct mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags, struct timespec __user *, timeout) { int datagrams; struct timespec timeout_sys; |
1be374a05 net: Block MSG_CM... |
2138 2139 |
if (flags & MSG_CMSG_COMPAT) return -EINVAL; |
a2e272554 net: Introduce re... |
2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 |
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; } #ifdef __ARCH_WANT_SYS_SOCKETCALL |
1da177e4c Linux-2.6.12-rc2 |
2156 2157 |
/* Argument list sizes for sys_socketcall */ #define AL(x) ((x) * sizeof(unsigned long)) |
228e548e6 net: Add sendmmsg... |
2158 |
static const unsigned char nargs[21] = { |
c6d409cfd From abbffa2aa9bd... |
2159 2160 2161 |
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... |
2162 |
AL(4), AL(5), AL(4) |
89bddce58 [NET] socket: cod... |
2163 |
}; |
1da177e4c Linux-2.6.12-rc2 |
2164 2165 2166 |
#undef AL /* |
89bddce58 [NET] socket: cod... |
2167 |
* System call vectors. |
1da177e4c Linux-2.6.12-rc2 |
2168 2169 2170 |
* * Argument checking cleaned up. Saved 20% in size. * This function doesn't need to set the kernel lock because |
89bddce58 [NET] socket: cod... |
2171 |
* it is set by the callees. |
1da177e4c Linux-2.6.12-rc2 |
2172 |
*/ |
3e0fa65f8 [CVE-2009-0029] S... |
2173 |
SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) |
1da177e4c Linux-2.6.12-rc2 |
2174 |
{ |
2950fa9d3 kernel: audit: be... |
2175 |
unsigned long a[AUDITSC_ARGS]; |
89bddce58 [NET] socket: cod... |
2176 |
unsigned long a0, a1; |
1da177e4c Linux-2.6.12-rc2 |
2177 |
int err; |
47379052b net: Add explicit... |
2178 |
unsigned int len; |
1da177e4c Linux-2.6.12-rc2 |
2179 |
|
228e548e6 net: Add sendmmsg... |
2180 |
if (call < 1 || call > SYS_SENDMMSG) |
1da177e4c Linux-2.6.12-rc2 |
2181 |
return -EINVAL; |
47379052b net: Add explicit... |
2182 2183 2184 |
len = nargs[call]; if (len > sizeof(a)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2185 |
/* copy_from_user should be SMP safe. */ |
47379052b net: Add explicit... |
2186 |
if (copy_from_user(a, args, len)) |
1da177e4c Linux-2.6.12-rc2 |
2187 |
return -EFAULT; |
3ec3b2fba AUDIT: Capture sy... |
2188 |
|
2950fa9d3 kernel: audit: be... |
2189 2190 2191 |
err = audit_socketcall(nargs[call] / sizeof(unsigned long), a); if (err) return err; |
3ec3b2fba AUDIT: Capture sy... |
2192 |
|
89bddce58 [NET] socket: cod... |
2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 |
a0 = a[0]; a1 = a[1]; switch (call) { case SYS_SOCKET: err = sys_socket(a0, a1, a[2]); break; case SYS_BIND: err = sys_bind(a0, (struct sockaddr __user *)a1, a[2]); break; case SYS_CONNECT: err = sys_connect(a0, (struct sockaddr __user *)a1, a[2]); break; case SYS_LISTEN: err = sys_listen(a0, a1); break; case SYS_ACCEPT: |
de11defeb reintroduce accept4 |
2210 2211 |
err = sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], 0); |
89bddce58 [NET] socket: cod... |
2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 |
break; case SYS_GETSOCKNAME: err = sys_getsockname(a0, (struct sockaddr __user *)a1, (int __user *)a[2]); break; case SYS_GETPEERNAME: err = sys_getpeername(a0, (struct sockaddr __user *)a1, (int __user *)a[2]); break; case SYS_SOCKETPAIR: err = sys_socketpair(a0, a1, a[2], (int __user *)a[3]); break; case SYS_SEND: err = sys_send(a0, (void __user *)a1, a[2], a[3]); break; case SYS_SENDTO: err = sys_sendto(a0, (void __user *)a1, a[2], a[3], (struct sockaddr __user *)a[4], a[5]); break; case SYS_RECV: err = sys_recv(a0, (void __user *)a1, a[2], a[3]); break; case SYS_RECVFROM: err = sys_recvfrom(a0, (void __user *)a1, a[2], a[3], (struct sockaddr __user *)a[4], (int __user *)a[5]); break; case SYS_SHUTDOWN: err = sys_shutdown(a0, a1); break; case SYS_SETSOCKOPT: err = sys_setsockopt(a0, a1, a[2], (char __user *)a[3], a[4]); break; case SYS_GETSOCKOPT: err = sys_getsockopt(a0, a1, a[2], (char __user *)a[3], (int __user *)a[4]); break; case SYS_SENDMSG: |
666547ff5 separate kernel- ... |
2253 |
err = sys_sendmsg(a0, (struct user_msghdr __user *)a1, a[2]); |
89bddce58 [NET] socket: cod... |
2254 |
break; |
228e548e6 net: Add sendmmsg... |
2255 2256 2257 |
case SYS_SENDMMSG: err = sys_sendmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3]); break; |
89bddce58 [NET] socket: cod... |
2258 |
case SYS_RECVMSG: |
666547ff5 separate kernel- ... |
2259 |
err = sys_recvmsg(a0, (struct user_msghdr __user *)a1, a[2]); |
89bddce58 [NET] socket: cod... |
2260 |
break; |
a2e272554 net: Introduce re... |
2261 2262 2263 2264 |
case SYS_RECVMMSG: err = sys_recvmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3], (struct timespec __user *)a[4]); break; |
de11defeb reintroduce accept4 |
2265 2266 2267 |
case SYS_ACCEPT4: err = sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], a[3]); |
aaca0bdca flag parameters: ... |
2268 |
break; |
89bddce58 [NET] socket: cod... |
2269 2270 2271 |
default: err = -EINVAL; break; |
1da177e4c Linux-2.6.12-rc2 |
2272 2273 2274 |
} return err; } |
89bddce58 [NET] socket: cod... |
2275 |
#endif /* __ARCH_WANT_SYS_SOCKETCALL */ |
1da177e4c Linux-2.6.12-rc2 |
2276 |
|
55737fda0 [NET]: socket fam... |
2277 2278 2279 2280 |
/** * sock_register - add a socket protocol handler * @ops: description of protocol * |
1da177e4c Linux-2.6.12-rc2 |
2281 2282 |
* 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... |
2283 |
* socket interface. The value ops->family corresponds to the |
55737fda0 [NET]: socket fam... |
2284 |
* socket system call protocol family. |
1da177e4c Linux-2.6.12-rc2 |
2285 |
*/ |
f0fd27d42 [NET]: sock_regis... |
2286 |
int sock_register(const struct net_proto_family *ops) |
1da177e4c Linux-2.6.12-rc2 |
2287 2288 2289 2290 |
{ int err; if (ops->family >= NPROTO) { |
3410f22ea socket: replace s... |
2291 2292 |
pr_crit("protocol %d >= NPROTO(%d) ", ops->family, NPROTO); |
1da177e4c Linux-2.6.12-rc2 |
2293 2294 |
return -ENOBUFS; } |
55737fda0 [NET]: socket fam... |
2295 2296 |
spin_lock(&net_family_lock); |
190683a9d net: net_families... |
2297 2298 |
if (rcu_dereference_protected(net_families[ops->family], lockdep_is_held(&net_family_lock))) |
55737fda0 [NET]: socket fam... |
2299 2300 |
err = -EEXIST; else { |
cf778b00e net: reintroduce ... |
2301 |
rcu_assign_pointer(net_families[ops->family], ops); |
1da177e4c Linux-2.6.12-rc2 |
2302 2303 |
err = 0; } |
55737fda0 [NET]: socket fam... |
2304 |
spin_unlock(&net_family_lock); |
3410f22ea socket: replace s... |
2305 2306 |
pr_info("NET: Registered protocol family %d ", ops->family); |
1da177e4c Linux-2.6.12-rc2 |
2307 2308 |
return err; } |
c6d409cfd From abbffa2aa9bd... |
2309 |
EXPORT_SYMBOL(sock_register); |
1da177e4c Linux-2.6.12-rc2 |
2310 |
|
55737fda0 [NET]: socket fam... |
2311 2312 2313 2314 |
/** * sock_unregister - remove a protocol handler * @family: protocol family to remove * |
1da177e4c Linux-2.6.12-rc2 |
2315 2316 |
* 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... |
2317 2318 2319 2320 2321 2322 |
* 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 |
2323 |
*/ |
f0fd27d42 [NET]: sock_regis... |
2324 |
void sock_unregister(int family) |
1da177e4c Linux-2.6.12-rc2 |
2325 |
{ |
f0fd27d42 [NET]: sock_regis... |
2326 |
BUG_ON(family < 0 || family >= NPROTO); |
1da177e4c Linux-2.6.12-rc2 |
2327 |
|
55737fda0 [NET]: socket fam... |
2328 |
spin_lock(&net_family_lock); |
a9b3cd7f3 rcu: convert uses... |
2329 |
RCU_INIT_POINTER(net_families[family], NULL); |
55737fda0 [NET]: socket fam... |
2330 2331 2332 |
spin_unlock(&net_family_lock); synchronize_rcu(); |
3410f22ea socket: replace s... |
2333 2334 |
pr_info("NET: Unregistered protocol family %d ", family); |
1da177e4c Linux-2.6.12-rc2 |
2335 |
} |
c6d409cfd From abbffa2aa9bd... |
2336 |
EXPORT_SYMBOL(sock_unregister); |
1da177e4c Linux-2.6.12-rc2 |
2337 |
|
77d76ea31 [NET]: Small clea... |
2338 |
static int __init sock_init(void) |
1da177e4c Linux-2.6.12-rc2 |
2339 |
{ |
b3e19d924 fs: scale mntget/... |
2340 |
int err; |
2ca794e5e net sysctl: Initi... |
2341 2342 2343 2344 2345 2346 |
/* * Initialize the network sysctl infrastructure. */ err = net_sysctl_init(); if (err) goto out; |
b3e19d924 fs: scale mntget/... |
2347 |
|
1da177e4c Linux-2.6.12-rc2 |
2348 |
/* |
89bddce58 [NET] socket: cod... |
2349 |
* Initialize skbuff SLAB cache |
1da177e4c Linux-2.6.12-rc2 |
2350 2351 |
*/ skb_init(); |
1da177e4c Linux-2.6.12-rc2 |
2352 2353 |
/* |
89bddce58 [NET] socket: cod... |
2354 |
* Initialize the protocols module. |
1da177e4c Linux-2.6.12-rc2 |
2355 2356 2357 |
*/ init_inodecache(); |
b3e19d924 fs: scale mntget/... |
2358 2359 2360 2361 |
err = register_filesystem(&sock_fs_type); if (err) goto out_fs; |
1da177e4c Linux-2.6.12-rc2 |
2362 |
sock_mnt = kern_mount(&sock_fs_type); |
b3e19d924 fs: scale mntget/... |
2363 2364 2365 2366 |
if (IS_ERR(sock_mnt)) { err = PTR_ERR(sock_mnt); goto out_mount; } |
77d76ea31 [NET]: Small clea... |
2367 2368 |
/* The real protocol initialization is performed in later initcalls. |
1da177e4c Linux-2.6.12-rc2 |
2369 2370 2371 |
*/ #ifdef CONFIG_NETFILTER |
6d11cfdba netfilter: don't ... |
2372 2373 2374 |
err = netfilter_init(); if (err) goto out; |
1da177e4c Linux-2.6.12-rc2 |
2375 |
#endif |
cbeb321a6 [NET]: Fix sock_i... |
2376 |
|
408eccce3 net: ptp: move PT... |
2377 |
ptp_classifier_init(); |
c1f19b51d net: support time... |
2378 |
|
b3e19d924 fs: scale mntget/... |
2379 2380 2381 2382 2383 2384 2385 |
out: return err; out_mount: unregister_filesystem(&sock_fs_type); out_fs: goto out; |
1da177e4c Linux-2.6.12-rc2 |
2386 |
} |
77d76ea31 [NET]: Small clea... |
2387 |
core_initcall(sock_init); /* early initcall */ |
1da177e4c Linux-2.6.12-rc2 |
2388 2389 2390 2391 2392 |
#ifdef CONFIG_PROC_FS void socket_seq_show(struct seq_file *seq) { int cpu; int counter = 0; |
6f9120422 [PATCH] for_each_... |
2393 |
for_each_possible_cpu(cpu) |
89bddce58 [NET] socket: cod... |
2394 |
counter += per_cpu(sockets_in_use, cpu); |
1da177e4c Linux-2.6.12-rc2 |
2395 2396 2397 2398 2399 2400 2401 2402 |
/* It can be negative, by the way. 8) */ if (counter < 0) counter = 0; seq_printf(seq, "sockets: used %d ", counter); } |
89bddce58 [NET] socket: cod... |
2403 |
#endif /* CONFIG_PROC_FS */ |
1da177e4c Linux-2.6.12-rc2 |
2404 |
|
89bbfc95d [NET]: allow 32 b... |
2405 |
#ifdef CONFIG_COMPAT |
6b96018b2 compat: move sock... |
2406 |
static int do_siocgstamp(struct net *net, struct socket *sock, |
644595f89 compat: Handle CO... |
2407 |
unsigned int cmd, void __user *up) |
7a229387d net: copy socket ... |
2408 |
{ |
7a229387d net: copy socket ... |
2409 2410 2411 2412 2413 |
mm_segment_t old_fs = get_fs(); struct timeval ktv; int err; set_fs(KERNEL_DS); |
6b96018b2 compat: move sock... |
2414 |
err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv); |
7a229387d net: copy socket ... |
2415 |
set_fs(old_fs); |
644595f89 compat: Handle CO... |
2416 |
if (!err) |
ed6fe9d61 Fix order of argu... |
2417 |
err = compat_put_timeval(&ktv, up); |
644595f89 compat: Handle CO... |
2418 |
|
7a229387d net: copy socket ... |
2419 2420 |
return err; } |
6b96018b2 compat: move sock... |
2421 |
static int do_siocgstampns(struct net *net, struct socket *sock, |
644595f89 compat: Handle CO... |
2422 |
unsigned int cmd, void __user *up) |
7a229387d net: copy socket ... |
2423 |
{ |
7a229387d net: copy socket ... |
2424 2425 2426 2427 2428 |
mm_segment_t old_fs = get_fs(); struct timespec kts; int err; set_fs(KERNEL_DS); |
6b96018b2 compat: move sock... |
2429 |
err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts); |
7a229387d net: copy socket ... |
2430 |
set_fs(old_fs); |
644595f89 compat: Handle CO... |
2431 |
if (!err) |
ed6fe9d61 Fix order of argu... |
2432 |
err = compat_put_timespec(&kts, up); |
644595f89 compat: Handle CO... |
2433 |
|
7a229387d net: copy socket ... |
2434 2435 |
return err; } |
6b96018b2 compat: move sock... |
2436 |
static int dev_ifname32(struct net *net, struct compat_ifreq __user *uifr32) |
7a229387d net: copy socket ... |
2437 2438 2439 2440 2441 |
{ struct ifreq __user *uifr; int err; uifr = compat_alloc_user_space(sizeof(struct ifreq)); |
6b96018b2 compat: move sock... |
2442 |
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2443 |
return -EFAULT; |
6b96018b2 compat: move sock... |
2444 |
err = dev_ioctl(net, SIOCGIFNAME, uifr); |
7a229387d net: copy socket ... |
2445 2446 |
if (err) return err; |
6b96018b2 compat: move sock... |
2447 |
if (copy_in_user(uifr32, uifr, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2448 2449 2450 2451 |
return -EFAULT; return 0; } |
6b96018b2 compat: move sock... |
2452 |
static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32) |
7a229387d net: copy socket ... |
2453 |
{ |
6b96018b2 compat: move sock... |
2454 |
struct compat_ifconf ifc32; |
7a229387d net: copy socket ... |
2455 2456 |
struct ifconf ifc; struct ifconf __user *uifc; |
6b96018b2 compat: move sock... |
2457 |
struct compat_ifreq __user *ifr32; |
7a229387d net: copy socket ... |
2458 2459 2460 |
struct ifreq __user *ifr; unsigned int i, j; int err; |
6b96018b2 compat: move sock... |
2461 |
if (copy_from_user(&ifc32, uifc32, sizeof(struct compat_ifconf))) |
7a229387d net: copy socket ... |
2462 |
return -EFAULT; |
43da5f2e0 net: fix info lea... |
2463 |
memset(&ifc, 0, sizeof(ifc)); |
7a229387d net: copy socket ... |
2464 2465 2466 2467 2468 2469 |
if (ifc32.ifcbuf == 0) { ifc32.ifc_len = 0; ifc.ifc_len = 0; ifc.ifc_req = NULL; uifc = compat_alloc_user_space(sizeof(struct ifconf)); } else { |
c6d409cfd From abbffa2aa9bd... |
2470 2471 |
size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) * sizeof(struct ifreq); |
7a229387d net: copy socket ... |
2472 2473 2474 2475 |
uifc = compat_alloc_user_space(sizeof(struct ifconf) + len); ifc.ifc_len = len; ifr = ifc.ifc_req = (void __user *)(uifc + 1); ifr32 = compat_ptr(ifc32.ifcbuf); |
c6d409cfd From abbffa2aa9bd... |
2476 |
for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) { |
6b96018b2 compat: move sock... |
2477 |
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2478 2479 2480 2481 2482 2483 2484 |
return -EFAULT; ifr++; ifr32++; } } if (copy_to_user(uifc, &ifc, sizeof(struct ifconf))) return -EFAULT; |
6b96018b2 compat: move sock... |
2485 |
err = dev_ioctl(net, SIOCGIFCONF, uifc); |
7a229387d net: copy socket ... |
2486 2487 2488 2489 2490 2491 2492 2493 2494 |
if (err) return err; if (copy_from_user(&ifc, uifc, sizeof(struct ifconf))) return -EFAULT; ifr = ifc.ifc_req; ifr32 = compat_ptr(ifc32.ifcbuf); for (i = 0, j = 0; |
c6d409cfd From abbffa2aa9bd... |
2495 2496 2497 |
i + sizeof(struct compat_ifreq) <= ifc32.ifc_len && j < ifc.ifc_len; i += sizeof(struct compat_ifreq), j += sizeof(struct ifreq)) { if (copy_in_user(ifr32, ifr, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 |
return -EFAULT; ifr32++; ifr++; } if (ifc32.ifcbuf == 0) { /* Translate from 64-bit structure multiple to * a 32-bit one. */ i = ifc.ifc_len; |
6b96018b2 compat: move sock... |
2508 |
i = ((i / sizeof(struct ifreq)) * sizeof(struct compat_ifreq)); |
7a229387d net: copy socket ... |
2509 2510 2511 2512 |
ifc32.ifc_len = i; } else { ifc32.ifc_len = i; } |
6b96018b2 compat: move sock... |
2513 |
if (copy_to_user(uifc32, &ifc32, sizeof(struct compat_ifconf))) |
7a229387d net: copy socket ... |
2514 2515 2516 2517 |
return -EFAULT; return 0; } |
6b96018b2 compat: move sock... |
2518 |
static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) |
7a229387d net: copy socket ... |
2519 |
{ |
3a7da39d1 ethtool: Compat h... |
2520 2521 2522 2523 |
struct compat_ethtool_rxnfc __user *compat_rxnfc; bool convert_in = false, convert_out = false; size_t buf_size = ALIGN(sizeof(struct ifreq), 8); struct ethtool_rxnfc __user *rxnfc; |
7a229387d net: copy socket ... |
2524 |
struct ifreq __user *ifr; |
3a7da39d1 ethtool: Compat h... |
2525 2526 |
u32 rule_cnt = 0, actual_rule_cnt; u32 ethcmd; |
7a229387d net: copy socket ... |
2527 |
u32 data; |
3a7da39d1 ethtool: Compat h... |
2528 |
int ret; |
7a229387d net: copy socket ... |
2529 |
|
3a7da39d1 ethtool: Compat h... |
2530 2531 |
if (get_user(data, &ifr32->ifr_ifru.ifru_data)) return -EFAULT; |
7a229387d net: copy socket ... |
2532 |
|
3a7da39d1 ethtool: Compat h... |
2533 2534 2535 |
compat_rxnfc = compat_ptr(data); if (get_user(ethcmd, &compat_rxnfc->cmd)) |
7a229387d net: copy socket ... |
2536 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 |
/* 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... |
2554 |
case ETHTOOL_SRXCLSRLINS: |
3a7da39d1 ethtool: Compat h... |
2555 2556 2557 |
convert_out = true; /* fall through */ case ETHTOOL_SRXCLSRLDEL: |
3a7da39d1 ethtool: Compat h... |
2558 2559 2560 2561 2562 2563 |
buf_size += sizeof(struct ethtool_rxnfc); convert_in = true; break; } ifr = compat_alloc_user_space(buf_size); |
954b12445 ethtool: fix spar... |
2564 |
rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8); |
3a7da39d1 ethtool: Compat h... |
2565 2566 |
if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ)) |
7a229387d net: copy socket ... |
2567 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2568 2569 |
if (put_user(convert_in ? rxnfc : compat_ptr(data), &ifr->ifr_ifru.ifru_data)) |
7a229387d net: copy socket ... |
2570 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2571 |
if (convert_in) { |
127fe533a v3 ethtool: add n... |
2572 |
/* We expect there to be holes between fs.m_ext and |
3a7da39d1 ethtool: Compat h... |
2573 2574 |
* fs.ring_cookie and at the end of fs, but nowhere else. */ |
127fe533a v3 ethtool: add n... |
2575 2576 2577 2578 |
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... |
2579 2580 2581 2582 2583 2584 2585 |
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... |
2586 2587 |
(void __user *)(&rxnfc->fs.m_ext + 1) - (void __user *)rxnfc) || |
3a7da39d1 ethtool: Compat h... |
2588 2589 |
copy_in_user(&rxnfc->fs.ring_cookie, &compat_rxnfc->fs.ring_cookie, |
954b12445 ethtool: fix spar... |
2590 2591 |
(void __user *)(&rxnfc->fs.location + 1) - (void __user *)&rxnfc->fs.ring_cookie) || |
3a7da39d1 ethtool: Compat h... |
2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 |
copy_in_user(&rxnfc->rule_cnt, &compat_rxnfc->rule_cnt, sizeof(rxnfc->rule_cnt))) return -EFAULT; } ret = dev_ioctl(net, SIOCETHTOOL, ifr); if (ret) return ret; if (convert_out) { if (copy_in_user(compat_rxnfc, rxnfc, |
954b12445 ethtool: fix spar... |
2603 2604 |
(const void __user *)(&rxnfc->fs.m_ext + 1) - (const void __user *)rxnfc) || |
3a7da39d1 ethtool: Compat h... |
2605 2606 |
copy_in_user(&compat_rxnfc->fs.ring_cookie, &rxnfc->fs.ring_cookie, |
954b12445 ethtool: fix spar... |
2607 2608 |
(const void __user *)(&rxnfc->fs.location + 1) - (const void __user *)&rxnfc->fs.ring_cookie) || |
3a7da39d1 ethtool: Compat h... |
2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 |
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 ... |
2634 |
} |
7a50a240c net/compat_ioctl:... |
2635 2636 2637 2638 2639 |
static int compat_siocwandev(struct net *net, struct compat_ifreq __user *uifr32) { void __user *uptr; compat_uptr_t uptr32; struct ifreq __user *uifr; |
c6d409cfd From abbffa2aa9bd... |
2640 |
uifr = compat_alloc_user_space(sizeof(*uifr)); |
7a50a240c net/compat_ioctl:... |
2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 |
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq))) return -EFAULT; if (get_user(uptr32, &uifr32->ifr_settings.ifs_ifsu)) return -EFAULT; uptr = compat_ptr(uptr32); if (put_user(uptr, &uifr->ifr_settings.ifs_ifsu.raw_hdlc)) return -EFAULT; return dev_ioctl(net, SIOCWANDEV, uifr); } |
6b96018b2 compat: move sock... |
2654 2655 |
static int bond_ioctl(struct net *net, unsigned int cmd, struct compat_ifreq __user *ifr32) |
7a229387d net: copy socket ... |
2656 2657 |
{ struct ifreq kifr; |
7a229387d net: copy socket ... |
2658 2659 |
mm_segment_t old_fs; int err; |
7a229387d net: copy socket ... |
2660 2661 2662 2663 2664 2665 |
switch (cmd) { case SIOCBONDENSLAVE: case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: case SIOCBONDCHANGEACTIVE: |
6b96018b2 compat: move sock... |
2666 |
if (copy_from_user(&kifr, ifr32, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2667 2668 2669 |
return -EFAULT; old_fs = get_fs(); |
c6d409cfd From abbffa2aa9bd... |
2670 |
set_fs(KERNEL_DS); |
c3f52ae6a socket: suppress ... |
2671 2672 |
err = dev_ioctl(net, cmd, (struct ifreq __user __force *) &kifr); |
c6d409cfd From abbffa2aa9bd... |
2673 |
set_fs(old_fs); |
7a229387d net: copy socket ... |
2674 2675 |
return err; |
7a229387d net: copy socket ... |
2676 |
default: |
07d106d0a vfs: fix up ENOIO... |
2677 |
return -ENOIOCTLCMD; |
ccbd6a5a4 net: Remove unnec... |
2678 |
} |
7a229387d net: copy socket ... |
2679 |
} |
590d4693f net/compat: Merge... |
2680 2681 |
/* 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... |
2682 |
struct compat_ifreq __user *u_ifreq32) |
7a229387d net: copy socket ... |
2683 2684 |
{ struct ifreq __user *u_ifreq64; |
7a229387d net: copy socket ... |
2685 2686 2687 2688 2689 2690 2691 |
char tmp_buf[IFNAMSIZ]; void __user *data64; u32 data32; if (copy_from_user(&tmp_buf[0], &(u_ifreq32->ifr_ifrn.ifrn_name[0]), IFNAMSIZ)) return -EFAULT; |
417c3522b net/compat: Fix m... |
2692 |
if (get_user(data32, &u_ifreq32->ifr_ifru.ifru_data)) |
7a229387d net: copy socket ... |
2693 2694 2695 2696 |
return -EFAULT; data64 = compat_ptr(data32); u_ifreq64 = compat_alloc_user_space(sizeof(*u_ifreq64)); |
7a229387d net: copy socket ... |
2697 2698 2699 |
if (copy_to_user(&u_ifreq64->ifr_ifrn.ifrn_name[0], &tmp_buf[0], IFNAMSIZ)) return -EFAULT; |
417c3522b net/compat: Fix m... |
2700 |
if (put_user(data64, &u_ifreq64->ifr_ifru.ifru_data)) |
7a229387d net: copy socket ... |
2701 |
return -EFAULT; |
6b96018b2 compat: move sock... |
2702 |
return dev_ioctl(net, cmd, u_ifreq64); |
7a229387d net: copy socket ... |
2703 |
} |
6b96018b2 compat: move sock... |
2704 2705 |
static int dev_ifsioc(struct net *net, struct socket *sock, unsigned int cmd, struct compat_ifreq __user *uifr32) |
7a229387d net: copy socket ... |
2706 |
{ |
a2116ed22 net/compat: fix d... |
2707 |
struct ifreq __user *uifr; |
7a229387d net: copy socket ... |
2708 |
int err; |
a2116ed22 net/compat: fix d... |
2709 2710 2711 2712 2713 |
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); |
7a229387d net: copy socket ... |
2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 |
if (!err) { switch (cmd) { case SIOCGIFFLAGS: case SIOCGIFMETRIC: case SIOCGIFMTU: case SIOCGIFMEM: case SIOCGIFHWADDR: case SIOCGIFINDEX: case SIOCGIFADDR: case SIOCGIFBRDADDR: case SIOCGIFDSTADDR: case SIOCGIFNETMASK: |
fab2532ba net, compat_ioctl... |
2726 |
case SIOCGIFPFLAGS: |
7a229387d net: copy socket ... |
2727 |
case SIOCGIFTXQLEN: |
fab2532ba net, compat_ioctl... |
2728 2729 |
case SIOCGMIIPHY: case SIOCGMIIREG: |
a2116ed22 net/compat: fix d... |
2730 |
if (copy_in_user(uifr32, uifr, sizeof(*uifr32))) |
7a229387d net: copy socket ... |
2731 2732 2733 2734 2735 2736 |
err = -EFAULT; break; } } return err; } |
a2116ed22 net/compat: fix d... |
2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 |
static int compat_sioc_ifmap(struct net *net, unsigned int cmd, struct compat_ifreq __user *uifr32) { struct ifreq ifr; struct compat_ifmap __user *uifmap32; mm_segment_t old_fs; int err; uifmap32 = &uifr32->ifr_ifru.ifru_map; err = copy_from_user(&ifr, uifr32, sizeof(ifr.ifr_name)); |
3ddc5b46a kernel-wide: fix ... |
2747 2748 2749 2750 2751 2752 |
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... |
2753 2754 2755 2756 |
if (err) return -EFAULT; old_fs = get_fs(); |
c6d409cfd From abbffa2aa9bd... |
2757 |
set_fs(KERNEL_DS); |
c3f52ae6a socket: suppress ... |
2758 |
err = dev_ioctl(net, cmd, (void __user __force *)&ifr); |
c6d409cfd From abbffa2aa9bd... |
2759 |
set_fs(old_fs); |
a2116ed22 net/compat: fix d... |
2760 2761 2762 |
if (cmd == SIOCGIFMAP && !err) { err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name)); |
3ddc5b46a kernel-wide: fix ... |
2763 2764 2765 2766 2767 2768 |
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... |
2769 2770 2771 2772 2773 |
if (err) err = -EFAULT; } return err; } |
7a229387d net: copy socket ... |
2774 |
struct rtentry32 { |
c6d409cfd From abbffa2aa9bd... |
2775 |
u32 rt_pad1; |
7a229387d net: copy socket ... |
2776 2777 2778 |
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... |
2779 2780 2781 2782 2783 2784 2785 |
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 ... |
2786 |
/* char * */ u32 rt_dev; /* forcing the device at add */ |
c6d409cfd From abbffa2aa9bd... |
2787 2788 |
u32 rt_mtu; /* per route MTU/Window */ u32 rt_window; /* Window clamping */ |
7a229387d net: copy socket ... |
2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 |
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... |
2804 2805 |
static int routing_ioctl(struct net *net, struct socket *sock, unsigned int cmd, void __user *argp) |
7a229387d net: copy socket ... |
2806 2807 2808 2809 2810 2811 2812 2813 |
{ 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... |
2814 2815 |
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */ struct in6_rtmsg32 __user *ur6 = argp; |
c6d409cfd From abbffa2aa9bd... |
2816 |
ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst), |
7a229387d net: copy socket ... |
2817 |
3 * sizeof(struct in6_addr)); |
3ddc5b46a kernel-wide: fix ... |
2818 2819 2820 2821 2822 2823 2824 |
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 ... |
2825 2826 2827 |
r = (void *) &r6; } else { /* ipv4 */ |
6b96018b2 compat: move sock... |
2828 |
struct rtentry32 __user *ur4 = argp; |
c6d409cfd From abbffa2aa9bd... |
2829 |
ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst), |
7a229387d net: copy socket ... |
2830 |
3 * sizeof(struct sockaddr)); |
3ddc5b46a kernel-wide: fix ... |
2831 2832 2833 2834 2835 2836 |
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 ... |
2837 |
if (rtdev) { |
c6d409cfd From abbffa2aa9bd... |
2838 |
ret |= copy_from_user(devname, compat_ptr(rtdev), 15); |
c3f52ae6a socket: suppress ... |
2839 2840 |
r4.rt_dev = (char __user __force *)devname; devname[15] = 0; |
7a229387d net: copy socket ... |
2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 |
} else r4.rt_dev = NULL; r = (void *) &r4; } if (ret) { ret = -EFAULT; goto out; } |
c6d409cfd From abbffa2aa9bd... |
2851 |
set_fs(KERNEL_DS); |
6b96018b2 compat: move sock... |
2852 |
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r); |
c6d409cfd From abbffa2aa9bd... |
2853 |
set_fs(old_fs); |
7a229387d net: copy socket ... |
2854 2855 |
out: |
7a229387d net: copy socket ... |
2856 2857 2858 2859 2860 |
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... |
2861 |
* use compatible ioctls |
7a229387d net: copy socket ... |
2862 |
*/ |
6b96018b2 compat: move sock... |
2863 |
static int old_bridge_ioctl(compat_ulong_t __user *argp) |
7a229387d net: copy socket ... |
2864 |
{ |
6b96018b2 compat: move sock... |
2865 |
compat_ulong_t tmp; |
7a229387d net: copy socket ... |
2866 |
|
6b96018b2 compat: move sock... |
2867 |
if (get_user(tmp, argp)) |
7a229387d net: copy socket ... |
2868 2869 2870 2871 2872 |
return -EFAULT; if (tmp == BRCTL_GET_VERSION) return BRCTL_VERSION + 1; return -EINVAL; } |
6b96018b2 compat: move sock... |
2873 2874 2875 2876 2877 2878 |
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 ... |
2879 |
|
6b96018b2 compat: move sock... |
2880 |
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) |
590d4693f net/compat: Merge... |
2881 |
return compat_ifr_data_ioctl(net, cmd, argp); |
6b96018b2 compat: move sock... |
2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 |
switch (cmd) { case SIOCSIFBR: case SIOCGIFBR: return old_bridge_ioctl(argp); case SIOCGIFNAME: return dev_ifname32(net, argp); case SIOCGIFCONF: return dev_ifconf(net, argp); case SIOCETHTOOL: return ethtool_ioctl(net, argp); |
7a50a240c net/compat_ioctl:... |
2893 2894 |
case SIOCWANDEV: return compat_siocwandev(net, argp); |
a2116ed22 net/compat: fix d... |
2895 2896 2897 |
case SIOCGIFMAP: case SIOCSIFMAP: return compat_sioc_ifmap(net, cmd, argp); |
6b96018b2 compat: move sock... |
2898 2899 2900 |
case SIOCBONDENSLAVE: case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: |
6b96018b2 compat: move sock... |
2901 2902 2903 2904 2905 2906 2907 2908 2909 |
case SIOCBONDCHANGEACTIVE: return bond_ioctl(net, cmd, argp); 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... |
2910 2911 |
case SIOCBONDSLAVEINFOQUERY: case SIOCBONDINFOQUERY: |
a2116ed22 net/compat: fix d... |
2912 |
case SIOCSHWTSTAMP: |
fd468c74b net_tstamp: Add S... |
2913 |
case SIOCGHWTSTAMP: |
590d4693f net/compat: Merge... |
2914 |
return compat_ifr_data_ioctl(net, cmd, argp); |
6b96018b2 compat: move sock... |
2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 |
case FIOSETOWN: case SIOCSPGRP: case FIOGETOWN: case SIOCGPGRP: case SIOCBRADDBR: case SIOCBRDELBR: case SIOCGIFVLAN: case SIOCSIFVLAN: case SIOCADDDLCI: case SIOCDELDLCI: 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... |
2941 2942 2943 |
case SIOCGIFADDR: case SIOCSIFADDR: case SIOCSIFHWBROADCAST: |
6b96018b2 compat: move sock... |
2944 |
case SIOCDIFADDR: |
6b96018b2 compat: move sock... |
2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 |
case SIOCGIFBRDADDR: case SIOCSIFBRDADDR: case SIOCGIFDSTADDR: case SIOCSIFDSTADDR: case SIOCGIFNETMASK: case SIOCSIFNETMASK: case SIOCSIFPFLAGS: case SIOCGIFPFLAGS: case SIOCGIFTXQLEN: case SIOCSIFTXQLEN: case SIOCBRADDIF: case SIOCBRDELIF: |
9177efd39 net, compat_ioctl... |
2957 2958 2959 2960 |
case SIOCSIFNAME: case SIOCGMIIPHY: case SIOCGMIIREG: case SIOCSMIIREG: |
6b96018b2 compat: move sock... |
2961 |
return dev_ifsioc(net, sock, cmd, argp); |
9177efd39 net, compat_ioctl... |
2962 |
|
6b96018b2 compat: move sock... |
2963 2964 2965 |
case SIOCSARP: case SIOCGARP: case SIOCDARP: |
6b96018b2 compat: move sock... |
2966 |
case SIOCATMARK: |
9177efd39 net, compat_ioctl... |
2967 2968 |
return sock_do_ioctl(net, sock, cmd, arg); } |
6b96018b2 compat: move sock... |
2969 2970 |
return -ENOIOCTLCMD; } |
7a229387d net: copy socket ... |
2971 |
|
95c961747 net: cleanup unsi... |
2972 |
static long compat_sock_ioctl(struct file *file, unsigned int cmd, |
89bddce58 [NET] socket: cod... |
2973 |
unsigned long arg) |
89bbfc95d [NET]: allow 32 b... |
2974 2975 2976 |
{ struct socket *sock = file->private_data; int ret = -ENOIOCTLCMD; |
87de87d5e wext: Dispatch an... |
2977 2978 2979 2980 2981 |
struct sock *sk; struct net *net; sk = sock->sk; net = sock_net(sk); |
89bbfc95d [NET]: allow 32 b... |
2982 2983 2984 |
if (sock->ops->compat_ioctl) ret = sock->ops->compat_ioctl(sock, cmd, arg); |
87de87d5e wext: Dispatch an... |
2985 2986 2987 |
if (ret == -ENOIOCTLCMD && (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)) ret = compat_wext_handle_ioctl(net, cmd, arg); |
6b96018b2 compat: move sock... |
2988 2989 |
if (ret == -ENOIOCTLCMD) ret = compat_sock_ioctl_trans(file, sock, cmd, arg); |
89bbfc95d [NET]: allow 32 b... |
2990 2991 2992 |
return ret; } #endif |
ac5a488ef [NET]: Round out ... |
2993 2994 2995 2996 |
int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen) { return sock->ops->bind(sock, addr, addrlen); } |
c6d409cfd From abbffa2aa9bd... |
2997 |
EXPORT_SYMBOL(kernel_bind); |
ac5a488ef [NET]: Round out ... |
2998 2999 3000 3001 3002 |
int kernel_listen(struct socket *sock, int backlog) { return sock->ops->listen(sock, backlog); } |
c6d409cfd From abbffa2aa9bd... |
3003 |
EXPORT_SYMBOL(kernel_listen); |
ac5a488ef [NET]: Round out ... |
3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 |
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; err = sock->ops->accept(sock, *newsock, flags); if (err < 0) { sock_release(*newsock); |
fa8705b00 [NET]: sanitize k... |
3018 |
*newsock = NULL; |
ac5a488ef [NET]: Round out ... |
3019 3020 3021 3022 |
goto done; } (*newsock)->ops = sock->ops; |
1b08534e5 net: Fix module r... |
3023 |
__module_get((*newsock)->ops->owner); |
ac5a488ef [NET]: Round out ... |
3024 3025 3026 3027 |
done: return err; } |
c6d409cfd From abbffa2aa9bd... |
3028 |
EXPORT_SYMBOL(kernel_accept); |
ac5a488ef [NET]: Round out ... |
3029 3030 |
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen, |
4768fbcbc [NET]: Fix whites... |
3031 |
int flags) |
ac5a488ef [NET]: Round out ... |
3032 3033 3034 |
{ return sock->ops->connect(sock, addr, addrlen, flags); } |
c6d409cfd From abbffa2aa9bd... |
3035 |
EXPORT_SYMBOL(kernel_connect); |
ac5a488ef [NET]: Round out ... |
3036 3037 3038 3039 3040 3041 |
int kernel_getsockname(struct socket *sock, struct sockaddr *addr, int *addrlen) { return sock->ops->getname(sock, addr, addrlen, 0); } |
c6d409cfd From abbffa2aa9bd... |
3042 |
EXPORT_SYMBOL(kernel_getsockname); |
ac5a488ef [NET]: Round out ... |
3043 3044 3045 3046 3047 3048 |
int kernel_getpeername(struct socket *sock, struct sockaddr *addr, int *addrlen) { return sock->ops->getname(sock, addr, addrlen, 1); } |
c6d409cfd From abbffa2aa9bd... |
3049 |
EXPORT_SYMBOL(kernel_getpeername); |
ac5a488ef [NET]: Round out ... |
3050 3051 3052 3053 3054 |
int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen) { mm_segment_t oldfs = get_fs(); |
fb8621bb6 net: remove addre... |
3055 3056 |
char __user *uoptval; int __user *uoptlen; |
ac5a488ef [NET]: Round out ... |
3057 |
int err; |
fb8621bb6 net: remove addre... |
3058 3059 |
uoptval = (char __user __force *) optval; uoptlen = (int __user __force *) optlen; |
ac5a488ef [NET]: Round out ... |
3060 3061 |
set_fs(KERNEL_DS); if (level == SOL_SOCKET) |
fb8621bb6 net: remove addre... |
3062 |
err = sock_getsockopt(sock, level, optname, uoptval, uoptlen); |
ac5a488ef [NET]: Round out ... |
3063 |
else |
fb8621bb6 net: remove addre... |
3064 3065 |
err = sock->ops->getsockopt(sock, level, optname, uoptval, uoptlen); |
ac5a488ef [NET]: Round out ... |
3066 3067 3068 |
set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3069 |
EXPORT_SYMBOL(kernel_getsockopt); |
ac5a488ef [NET]: Round out ... |
3070 3071 |
int kernel_setsockopt(struct socket *sock, int level, int optname, |
b7058842c net: Make setsock... |
3072 |
char *optval, unsigned int optlen) |
ac5a488ef [NET]: Round out ... |
3073 3074 |
{ mm_segment_t oldfs = get_fs(); |
fb8621bb6 net: remove addre... |
3075 |
char __user *uoptval; |
ac5a488ef [NET]: Round out ... |
3076 |
int err; |
fb8621bb6 net: remove addre... |
3077 |
uoptval = (char __user __force *) optval; |
ac5a488ef [NET]: Round out ... |
3078 3079 |
set_fs(KERNEL_DS); if (level == SOL_SOCKET) |
fb8621bb6 net: remove addre... |
3080 |
err = sock_setsockopt(sock, level, optname, uoptval, optlen); |
ac5a488ef [NET]: Round out ... |
3081 |
else |
fb8621bb6 net: remove addre... |
3082 |
err = sock->ops->setsockopt(sock, level, optname, uoptval, |
ac5a488ef [NET]: Round out ... |
3083 3084 3085 3086 |
optlen); set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3087 |
EXPORT_SYMBOL(kernel_setsockopt); |
ac5a488ef [NET]: Round out ... |
3088 3089 3090 3091 3092 3093 3094 3095 3096 |
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... |
3097 |
EXPORT_SYMBOL(kernel_sendpage); |
ac5a488ef [NET]: Round out ... |
3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 |
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg) { mm_segment_t oldfs = get_fs(); int err; set_fs(KERNEL_DS); err = sock->ops->ioctl(sock, cmd, arg); set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3110 |
EXPORT_SYMBOL(kernel_sock_ioctl); |
ac5a488ef [NET]: Round out ... |
3111 |
|
91cf45f02 [NET]: Add the he... |
3112 3113 3114 3115 |
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how) { return sock->ops->shutdown(sock, how); } |
91cf45f02 [NET]: Add the he... |
3116 |
EXPORT_SYMBOL(kernel_sock_shutdown); |