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net/socket.c
83.6 KB
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/* * NET An implementation of the SOCKET network access protocol. * * Version: @(#)socket.c 1.1.93 18/02/95 * * Authors: Orest Zborowski, <obz@Kodak.COM> |
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* Ross Biro |
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * * Fixes: * Anonymous : NOTSOCK/BADF cleanup. Error fix in * shutdown() * Alan Cox : verify_area() fixes * Alan Cox : Removed DDI * Jonathan Kamens : SOCK_DGRAM reconnect bug * Alan Cox : Moved a load of checks to the very * top level. * Alan Cox : Move address structures to/from user * mode above the protocol layers. * Rob Janssen : Allow 0 length sends. * Alan Cox : Asynchronous I/O support (cribbed from the * tty drivers). * Niibe Yutaka : Asynchronous I/O for writes (4.4BSD style) * Jeff Uphoff : Made max number of sockets command-line * configurable. * Matti Aarnio : Made the number of sockets dynamic, * to be allocated when needed, and mr. * Uphoff's max is used as max to be * allowed to allocate. * Linus : Argh. removed all the socket allocation * altogether: it's in the inode now. * Alan Cox : Made sock_alloc()/sock_release() public * for NetROM and future kernel nfsd type * stuff. * Alan Cox : sendmsg/recvmsg basics. * Tom Dyas : Export net symbols. * Marcin Dalecki : Fixed problems with CONFIG_NET="n". * Alan Cox : Added thread locking to sys_* calls * for sockets. May have errors at the * moment. * Kevin Buhr : Fixed the dumb errors in the above. * Andi Kleen : Some small cleanups, optimizations, * and fixed a copy_from_user() bug. * Tigran Aivazian : sys_send(args) calls sys_sendto(args, NULL, 0) |
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* Tigran Aivazian : Made listen(2) backlog sanity checks |
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* protocol-independent * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * * This module is effectively the top level interface to the BSD socket |
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* paradigm. |
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* * Based upon Swansea University Computer Society NET3.039 */ |
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#include <linux/mm.h> |
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#include <linux/socket.h> #include <linux/file.h> #include <linux/net.h> #include <linux/interrupt.h> |
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#include <linux/thread_info.h> |
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#include <linux/rcupdate.h> |
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#include <linux/netdevice.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> |
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#include <linux/mutex.h> |
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#include <linux/if_bridge.h> |
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#include <linux/if_frad.h> #include <linux/if_vlan.h> |
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#include <linux/ptp_classify.h> |
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#include <linux/init.h> #include <linux/poll.h> #include <linux/cache.h> #include <linux/module.h> #include <linux/highmem.h> |
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#include <linux/mount.h> #include <linux/security.h> #include <linux/syscalls.h> #include <linux/compat.h> #include <linux/kmod.h> |
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#include <linux/audit.h> |
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#include <linux/wireless.h> |
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#include <linux/nsproxy.h> |
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#include <linux/magic.h> |
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#include <linux/slab.h> |
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#include <linux/xattr.h> |
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#include <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 int sock_no_open(struct inode *irrelevant, struct file *dontcare); |
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static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos); static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos); |
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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, .aio_read = sock_aio_read, .aio_write = sock_aio_write, .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, .open = sock_no_open, /* special open code to disallow open via /proc */ .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; 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 | SLAB_MEM_SPREAD), |
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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]", dentry->d_inode->i_ino); } |
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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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SOCK_INODE(sock)->i_fop = &socket_file_ops; |
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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 (unlikely(IS_ERR(file))) { |
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/* drop dentry, keep inode */ |
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ihold(path.dentry->d_inode); |
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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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/** |
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* sockfd_lookup - Go from a file number to its socket slot |
1da177e4c Linux-2.6.12-rc2 |
406 407 408 409 410 411 412 413 414 415 416 417 418 419 |
* @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 |
420 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
421 422 |
file = fget(fd); if (!file) { |
1da177e4c Linux-2.6.12-rc2 |
423 424 425 |
*err = -EBADF; return NULL; } |
89bddce58 [NET] socket: cod... |
426 |
|
6cb153cab [NET]: use fget_l... |
427 428 |
sock = sock_from_file(file, err); if (!sock) |
1da177e4c Linux-2.6.12-rc2 |
429 |
fput(file); |
6cb153cab [NET]: use fget_l... |
430 431 |
return sock; } |
c6d409cfd From abbffa2aa9bd... |
432 |
EXPORT_SYMBOL(sockfd_lookup); |
1da177e4c Linux-2.6.12-rc2 |
433 |
|
6cb153cab [NET]: use fget_l... |
434 435 |
static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed) { |
00e188ef6 sockfd_lookup_lig... |
436 |
struct fd f = fdget(fd); |
6cb153cab [NET]: use fget_l... |
437 |
struct socket *sock; |
3672558c6 [NET]: sockfd_loo... |
438 |
*err = -EBADF; |
00e188ef6 sockfd_lookup_lig... |
439 440 441 442 |
if (f.file) { sock = sock_from_file(f.file, err); if (likely(sock)) { *fput_needed = f.flags; |
6cb153cab [NET]: use fget_l... |
443 |
return sock; |
00e188ef6 sockfd_lookup_lig... |
444 445 |
} fdput(f); |
1da177e4c Linux-2.6.12-rc2 |
446 |
} |
6cb153cab [NET]: use fget_l... |
447 |
return NULL; |
1da177e4c Linux-2.6.12-rc2 |
448 |
} |
600e17792 net: Providing pr... |
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 |
#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; len = security_inode_listsecurity(dentry->d_inode, buffer, size); 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 |
510 511 |
/** * sock_alloc - allocate a socket |
89bddce58 [NET] socket: cod... |
512 |
* |
1da177e4c Linux-2.6.12-rc2 |
513 514 515 516 517 518 519 |
* 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. */ static struct socket *sock_alloc(void) { |
89bddce58 [NET] socket: cod... |
520 521 |
struct inode *inode; struct socket *sock; |
1da177e4c Linux-2.6.12-rc2 |
522 |
|
a209dfc7b vfs: dont chain p... |
523 |
inode = new_inode_pseudo(sock_mnt->mnt_sb); |
1da177e4c Linux-2.6.12-rc2 |
524 525 526 527 |
if (!inode) return NULL; sock = SOCKET_I(inode); |
29a020d35 [PATCH] net: kmem... |
528 |
kmemcheck_annotate_bitfield(sock, type); |
85fe4025c fs: do not assign... |
529 |
inode->i_ino = get_next_ino(); |
89bddce58 [NET] socket: cod... |
530 |
inode->i_mode = S_IFSOCK | S_IRWXUGO; |
8192b0c48 CRED: Wrap task c... |
531 532 |
inode->i_uid = current_fsuid(); inode->i_gid = current_fsgid(); |
600e17792 net: Providing pr... |
533 |
inode->i_op = &sockfs_inode_ops; |
1da177e4c Linux-2.6.12-rc2 |
534 |
|
19e8d69c5 net: replace perc... |
535 |
this_cpu_add(sockets_in_use, 1); |
1da177e4c Linux-2.6.12-rc2 |
536 537 538 539 540 541 542 543 |
return sock; } /* * In theory you can't get an open on this inode, but /proc provides * a back door. Remember to keep it shut otherwise you'll let the * creepy crawlies in. */ |
89bddce58 [NET] socket: cod... |
544 |
|
1da177e4c Linux-2.6.12-rc2 |
545 546 547 548 |
static int sock_no_open(struct inode *irrelevant, struct file *dontcare) { return -ENXIO; } |
4b6f5d20b [PATCH] Make most... |
549 |
const struct file_operations bad_sock_fops = { |
1da177e4c Linux-2.6.12-rc2 |
550 551 |
.owner = THIS_MODULE, .open = sock_no_open, |
6038f373a llseek: automatic... |
552 |
.llseek = noop_llseek, |
1da177e4c Linux-2.6.12-rc2 |
553 554 555 556 557 558 559 560 |
}; /** * 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... |
561 |
* an inode not a file. |
1da177e4c Linux-2.6.12-rc2 |
562 |
*/ |
89bddce58 [NET] socket: cod... |
563 |
|
1da177e4c Linux-2.6.12-rc2 |
564 565 566 567 568 569 570 571 572 |
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... |
573 |
if (rcu_dereference_protected(sock->wq, 1)->fasync_list) |
3410f22ea socket: replace s... |
574 575 |
pr_err("%s: fasync list not empty! ", __func__); |
1da177e4c Linux-2.6.12-rc2 |
576 |
|
b09e786bd tun: fix a crash ... |
577 578 |
if (test_bit(SOCK_EXTERNALLY_ALLOCATED, &sock->flags)) return; |
19e8d69c5 net: replace perc... |
579 |
this_cpu_sub(sockets_in_use, 1); |
1da177e4c Linux-2.6.12-rc2 |
580 581 582 583 |
if (!sock->file) { iput(SOCK_INODE(sock)); return; } |
89bddce58 [NET] socket: cod... |
584 |
sock->file = NULL; |
1da177e4c Linux-2.6.12-rc2 |
585 |
} |
c6d409cfd From abbffa2aa9bd... |
586 |
EXPORT_SYMBOL(sock_release); |
1da177e4c Linux-2.6.12-rc2 |
587 |
|
140c55d4b net-timestamp: so... |
588 |
void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags) |
20d494735 net: socket infra... |
589 |
{ |
140c55d4b net-timestamp: so... |
590 |
u8 flags = *tx_flags; |
b9f40e21e net-timestamp: mo... |
591 |
if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_HARDWARE) |
140c55d4b net-timestamp: so... |
592 |
flags |= SKBTX_HW_TSTAMP; |
b9f40e21e net-timestamp: mo... |
593 |
if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_SOFTWARE) |
140c55d4b net-timestamp: so... |
594 |
flags |= SKBTX_SW_TSTAMP; |
e7fd28853 net-timestamp: SC... |
595 |
if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_SCHED) |
140c55d4b net-timestamp: so... |
596 |
flags |= SKBTX_SCHED_TSTAMP; |
e1c8a607b net-timestamp: AC... |
597 |
if (sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK) |
140c55d4b net-timestamp: so... |
598 |
flags |= SKBTX_ACK_TSTAMP; |
e7fd28853 net-timestamp: SC... |
599 |
|
6e3e939f3 net: add wireless... |
600 |
if (sock_flag(sk, SOCK_WIFI_STATUS)) |
140c55d4b net-timestamp: so... |
601 602 603 |
flags |= SKBTX_WIFI_STATUS; *tx_flags = flags; |
20d494735 net: socket infra... |
604 605 |
} EXPORT_SYMBOL(sock_tx_timestamp); |
228e548e6 net: Add sendmmsg... |
606 607 |
static inline int __sock_sendmsg_nosec(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size) |
1da177e4c Linux-2.6.12-rc2 |
608 609 |
{ struct sock_iocb *si = kiocb_to_siocb(iocb); |
1da177e4c Linux-2.6.12-rc2 |
610 611 612 613 614 |
si->sock = sock; si->scm = NULL; si->msg = msg; si->size = size; |
1da177e4c Linux-2.6.12-rc2 |
615 616 |
return sock->ops->sendmsg(iocb, sock, msg, size); } |
228e548e6 net: Add sendmmsg... |
617 618 619 620 621 622 623 |
static inline int __sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size) { int err = security_socket_sendmsg(sock, msg, size); return err ?: __sock_sendmsg_nosec(iocb, sock, msg, size); } |
1da177e4c Linux-2.6.12-rc2 |
624 625 626 627 628 629 630 631 632 633 634 635 636 |
int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) { struct kiocb iocb; struct sock_iocb siocb; int ret; init_sync_kiocb(&iocb, NULL); iocb.private = &siocb; ret = __sock_sendmsg(&iocb, sock, msg, size); if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&iocb); return ret; } |
c6d409cfd From abbffa2aa9bd... |
637 |
EXPORT_SYMBOL(sock_sendmsg); |
1da177e4c Linux-2.6.12-rc2 |
638 |
|
894dc24ce net: sock_sendmsg... |
639 |
static int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg, size_t size) |
228e548e6 net: Add sendmmsg... |
640 641 642 643 644 645 646 647 648 649 650 651 |
{ struct kiocb iocb; struct sock_iocb siocb; int ret; init_sync_kiocb(&iocb, NULL); iocb.private = &siocb; ret = __sock_sendmsg_nosec(&iocb, sock, msg, size); if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&iocb); return ret; } |
1da177e4c Linux-2.6.12-rc2 |
652 653 654 655 656 657 658 659 660 661 662 |
int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, size_t num, size_t size) { mm_segment_t oldfs = get_fs(); int result; set_fs(KERNEL_DS); /* * the following is safe, since for compiler definitions of kvec and * iovec are identical, yielding the same in-core layout and alignment */ |
89bddce58 [NET] socket: cod... |
663 |
msg->msg_iov = (struct iovec *)vec; |
1da177e4c Linux-2.6.12-rc2 |
664 665 666 667 668 |
msg->msg_iovlen = num; result = sock_sendmsg(sock, msg, size); set_fs(oldfs); return result; } |
c6d409cfd From abbffa2aa9bd... |
669 |
EXPORT_SYMBOL(kernel_sendmsg); |
1da177e4c Linux-2.6.12-rc2 |
670 |
|
92f37fd2e [NET]: Adding SO_... |
671 672 673 674 675 676 |
/* * 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... |
677 |
int need_software_tstamp = sock_flag(sk, SOCK_RCVTSTAMP); |
f24b9be59 net-timestamp: ex... |
678 |
struct scm_timestamping tss; |
20d494735 net: socket infra... |
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 |
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... |
695 696 |
struct timespec ts; skb_get_timestampns(skb, &ts); |
20d494735 net: socket infra... |
697 |
put_cmsg(msg, SOL_SOCKET, SCM_TIMESTAMPNS, |
f24b9be59 net-timestamp: ex... |
698 |
sizeof(ts), &ts); |
20d494735 net: socket infra... |
699 700 |
} } |
f24b9be59 net-timestamp: ex... |
701 |
memset(&tss, 0, sizeof(tss)); |
b9f40e21e net-timestamp: mo... |
702 |
if ((sk->sk_tsflags & SOF_TIMESTAMPING_SOFTWARE || |
f24b9be59 net-timestamp: ex... |
703 704 |
skb_shinfo(skb)->tx_flags & SKBTX_ANY_SW_TSTAMP) && ktime_to_timespec_cond(skb->tstamp, tss.ts + 0)) |
20d494735 net: socket infra... |
705 |
empty = 0; |
4d276eb6a net: remove depre... |
706 |
if (shhwtstamps && |
b9f40e21e net-timestamp: mo... |
707 |
(sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) && |
f24b9be59 net-timestamp: ex... |
708 |
ktime_to_timespec_cond(shhwtstamps->hwtstamp, tss.ts + 2)) |
4d276eb6a net: remove depre... |
709 |
empty = 0; |
20d494735 net: socket infra... |
710 711 |
if (!empty) put_cmsg(msg, SOL_SOCKET, |
f24b9be59 net-timestamp: ex... |
712 |
SCM_TIMESTAMPING, sizeof(tss), &tss); |
92f37fd2e [NET]: Adding SO_... |
713 |
} |
7c81fd8bf [SOCKET]: Export ... |
714 |
EXPORT_SYMBOL_GPL(__sock_recv_timestamp); |
6e3e939f3 net: add wireless... |
715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 |
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 ... |
730 731 |
static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk, struct sk_buff *skb) |
3b885787e net: Generalize s... |
732 733 734 735 736 |
{ if (sock_flag(sk, SOCK_RXQ_OVFL) && skb && skb->dropcount) put_cmsg(msg, SOL_SOCKET, SO_RXQ_OVFL, sizeof(__u32), &skb->dropcount); } |
767dd0336 net: speedup sock... |
737 |
void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, |
3b885787e net: Generalize s... |
738 739 740 741 742 |
struct sk_buff *skb) { sock_recv_timestamp(msg, sk, skb); sock_recv_drops(msg, sk, skb); } |
767dd0336 net: speedup sock... |
743 |
EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops); |
3b885787e net: Generalize s... |
744 |
|
a2e272554 net: Introduce re... |
745 746 |
static inline int __sock_recvmsg_nosec(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size, int flags) |
1da177e4c Linux-2.6.12-rc2 |
747 |
{ |
1da177e4c Linux-2.6.12-rc2 |
748 749 750 751 752 753 754 |
struct sock_iocb *si = kiocb_to_siocb(iocb); si->sock = sock; si->scm = NULL; si->msg = msg; si->size = size; si->flags = flags; |
1da177e4c Linux-2.6.12-rc2 |
755 756 |
return sock->ops->recvmsg(iocb, sock, msg, size, flags); } |
a2e272554 net: Introduce re... |
757 758 759 760 761 762 763 |
static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size, int flags) { int err = security_socket_recvmsg(sock, msg, size, flags); return err ?: __sock_recvmsg_nosec(iocb, sock, msg, size, flags); } |
89bddce58 [NET] socket: cod... |
764 |
int sock_recvmsg(struct socket *sock, struct msghdr *msg, |
1da177e4c Linux-2.6.12-rc2 |
765 766 767 768 769 |
size_t size, int flags) { struct kiocb iocb; struct sock_iocb siocb; int ret; |
89bddce58 [NET] socket: cod... |
770 |
init_sync_kiocb(&iocb, NULL); |
1da177e4c Linux-2.6.12-rc2 |
771 772 773 774 775 776 |
iocb.private = &siocb; ret = __sock_recvmsg(&iocb, sock, msg, size, flags); if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&iocb); return ret; } |
c6d409cfd From abbffa2aa9bd... |
777 |
EXPORT_SYMBOL(sock_recvmsg); |
1da177e4c Linux-2.6.12-rc2 |
778 |
|
a2e272554 net: Introduce re... |
779 780 781 782 783 784 785 786 787 788 789 790 791 792 |
static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg, size_t size, int flags) { struct kiocb iocb; struct sock_iocb siocb; int ret; init_sync_kiocb(&iocb, NULL); iocb.private = &siocb; ret = __sock_recvmsg_nosec(&iocb, sock, msg, size, flags); if (-EIOCBQUEUED == ret) ret = wait_on_sync_kiocb(&iocb); return ret; } |
c1249c0aa net: Document the... |
793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 |
/** * 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... |
808 809 |
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 |
810 811 812 813 814 815 816 817 818 |
{ mm_segment_t oldfs = get_fs(); int result; set_fs(KERNEL_DS); /* * the following is safe, since for compiler definitions of kvec and * iovec are identical, yielding the same in-core layout and alignment */ |
89bddce58 [NET] socket: cod... |
819 |
msg->msg_iov = (struct iovec *)vec, msg->msg_iovlen = num; |
1da177e4c Linux-2.6.12-rc2 |
820 821 822 823 |
result = sock_recvmsg(sock, msg, size, flags); set_fs(oldfs); return result; } |
c6d409cfd From abbffa2aa9bd... |
824 |
EXPORT_SYMBOL(kernel_recvmsg); |
1da177e4c Linux-2.6.12-rc2 |
825 |
|
ce1d4d3e8 [NET]: restructur... |
826 827 |
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 |
828 |
{ |
1da177e4c Linux-2.6.12-rc2 |
829 830 |
struct socket *sock; int flags; |
ce1d4d3e8 [NET]: restructur... |
831 |
sock = file->private_data; |
35f9c09fe tcp: tcp_sendpage... |
832 833 834 |
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... |
835 |
|
e69495838 Make sock_sendpag... |
836 |
return kernel_sendpage(sock, page, offset, size, flags); |
ce1d4d3e8 [NET]: restructur... |
837 |
} |
1da177e4c Linux-2.6.12-rc2 |
838 |
|
9c55e01c0 [TCP]: Splice rec... |
839 |
static ssize_t sock_splice_read(struct file *file, loff_t *ppos, |
c6d409cfd From abbffa2aa9bd... |
840 |
struct pipe_inode_info *pipe, size_t len, |
9c55e01c0 [TCP]: Splice rec... |
841 842 843 |
unsigned int flags) { struct socket *sock = file->private_data; |
997b37da1 [NET]: Make sure ... |
844 845 |
if (unlikely(!sock->ops->splice_read)) return -EINVAL; |
9c55e01c0 [TCP]: Splice rec... |
846 847 |
return sock->ops->splice_read(sock, ppos, pipe, len, flags); } |
ce1d4d3e8 [NET]: restructur... |
848 |
static struct sock_iocb *alloc_sock_iocb(struct kiocb *iocb, |
89bddce58 [NET] socket: cod... |
849 |
struct sock_iocb *siocb) |
ce1d4d3e8 [NET]: restructur... |
850 |
{ |
d29c445b6 aio: Kill ki_dtor |
851 852 |
if (!is_sync_kiocb(iocb)) BUG(); |
1da177e4c Linux-2.6.12-rc2 |
853 |
|
ce1d4d3e8 [NET]: restructur... |
854 |
siocb->kiocb = iocb; |
ce1d4d3e8 [NET]: restructur... |
855 856 |
iocb->private = siocb; return siocb; |
1da177e4c Linux-2.6.12-rc2 |
857 |
} |
ce1d4d3e8 [NET]: restructur... |
858 |
static ssize_t do_sock_read(struct msghdr *msg, struct kiocb *iocb, |
027445c37 [PATCH] Vectorize... |
859 860 |
struct file *file, const struct iovec *iov, unsigned long nr_segs) |
ce1d4d3e8 [NET]: restructur... |
861 862 863 864 |
{ struct socket *sock = file->private_data; size_t size = 0; int i; |
1da177e4c Linux-2.6.12-rc2 |
865 |
|
89bddce58 [NET] socket: cod... |
866 867 |
for (i = 0; i < nr_segs; i++) size += iov[i].iov_len; |
1da177e4c Linux-2.6.12-rc2 |
868 |
|
ce1d4d3e8 [NET]: restructur... |
869 870 871 872 |
msg->msg_name = NULL; msg->msg_namelen = 0; msg->msg_control = NULL; msg->msg_controllen = 0; |
89bddce58 [NET] socket: cod... |
873 |
msg->msg_iov = (struct iovec *)iov; |
ce1d4d3e8 [NET]: restructur... |
874 875 876 877 878 |
msg->msg_iovlen = nr_segs; msg->msg_flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0; return __sock_recvmsg(iocb, sock, msg, size, msg->msg_flags); } |
027445c37 [PATCH] Vectorize... |
879 880 |
static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) |
ce1d4d3e8 [NET]: restructur... |
881 882 |
{ struct sock_iocb siocb, *x; |
1da177e4c Linux-2.6.12-rc2 |
883 884 |
if (pos != 0) return -ESPIPE; |
027445c37 [PATCH] Vectorize... |
885 |
|
73a7075e3 aio: Kill aio_rw_... |
886 |
if (iocb->ki_nbytes == 0) /* Match SYS5 behaviour */ |
1da177e4c Linux-2.6.12-rc2 |
887 |
return 0; |
027445c37 [PATCH] Vectorize... |
888 889 |
x = alloc_sock_iocb(iocb, &siocb); |
ce1d4d3e8 [NET]: restructur... |
890 891 |
if (!x) return -ENOMEM; |
027445c37 [PATCH] Vectorize... |
892 |
return do_sock_read(&x->async_msg, iocb, iocb->ki_filp, iov, nr_segs); |
1da177e4c Linux-2.6.12-rc2 |
893 |
} |
ce1d4d3e8 [NET]: restructur... |
894 |
static ssize_t do_sock_write(struct msghdr *msg, struct kiocb *iocb, |
027445c37 [PATCH] Vectorize... |
895 896 |
struct file *file, const struct iovec *iov, unsigned long nr_segs) |
1da177e4c Linux-2.6.12-rc2 |
897 |
{ |
ce1d4d3e8 [NET]: restructur... |
898 899 900 |
struct socket *sock = file->private_data; size_t size = 0; int i; |
1da177e4c Linux-2.6.12-rc2 |
901 |
|
89bddce58 [NET] socket: cod... |
902 903 |
for (i = 0; i < nr_segs; i++) size += iov[i].iov_len; |
1da177e4c Linux-2.6.12-rc2 |
904 |
|
ce1d4d3e8 [NET]: restructur... |
905 906 907 908 |
msg->msg_name = NULL; msg->msg_namelen = 0; msg->msg_control = NULL; msg->msg_controllen = 0; |
89bddce58 [NET] socket: cod... |
909 |
msg->msg_iov = (struct iovec *)iov; |
ce1d4d3e8 [NET]: restructur... |
910 911 912 913 |
msg->msg_iovlen = nr_segs; msg->msg_flags = (file->f_flags & O_NONBLOCK) ? MSG_DONTWAIT : 0; if (sock->type == SOCK_SEQPACKET) msg->msg_flags |= MSG_EOR; |
1da177e4c Linux-2.6.12-rc2 |
914 |
|
ce1d4d3e8 [NET]: restructur... |
915 |
return __sock_sendmsg(iocb, sock, msg, size); |
1da177e4c Linux-2.6.12-rc2 |
916 |
} |
027445c37 [PATCH] Vectorize... |
917 918 |
static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) |
ce1d4d3e8 [NET]: restructur... |
919 920 |
{ struct sock_iocb siocb, *x; |
1da177e4c Linux-2.6.12-rc2 |
921 |
|
ce1d4d3e8 [NET]: restructur... |
922 923 |
if (pos != 0) return -ESPIPE; |
027445c37 [PATCH] Vectorize... |
924 |
|
027445c37 [PATCH] Vectorize... |
925 |
x = alloc_sock_iocb(iocb, &siocb); |
ce1d4d3e8 [NET]: restructur... |
926 927 |
if (!x) return -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
928 |
|
027445c37 [PATCH] Vectorize... |
929 |
return do_sock_write(&x->async_msg, iocb, iocb->ki_filp, iov, nr_segs); |
1da177e4c Linux-2.6.12-rc2 |
930 |
} |
1da177e4c Linux-2.6.12-rc2 |
931 932 933 934 |
/* * Atomic setting of ioctl hooks to avoid race * with module unload. */ |
4a3e2f711 [NET] sem2mutex: ... |
935 |
static DEFINE_MUTEX(br_ioctl_mutex); |
c6d409cfd From abbffa2aa9bd... |
936 |
static int (*br_ioctl_hook) (struct net *, unsigned int cmd, void __user *arg); |
1da177e4c Linux-2.6.12-rc2 |
937 |
|
881d966b4 [NET]: Make the d... |
938 |
void brioctl_set(int (*hook) (struct net *, unsigned int, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
939 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
940 |
mutex_lock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
941 |
br_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
942 |
mutex_unlock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
943 944 |
} EXPORT_SYMBOL(brioctl_set); |
4a3e2f711 [NET] sem2mutex: ... |
945 |
static DEFINE_MUTEX(vlan_ioctl_mutex); |
881d966b4 [NET]: Make the d... |
946 |
static int (*vlan_ioctl_hook) (struct net *, void __user *arg); |
1da177e4c Linux-2.6.12-rc2 |
947 |
|
881d966b4 [NET]: Make the d... |
948 |
void vlan_ioctl_set(int (*hook) (struct net *, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
949 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
950 |
mutex_lock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
951 |
vlan_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
952 |
mutex_unlock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
953 954 |
} EXPORT_SYMBOL(vlan_ioctl_set); |
4a3e2f711 [NET] sem2mutex: ... |
955 |
static DEFINE_MUTEX(dlci_ioctl_mutex); |
89bddce58 [NET] socket: cod... |
956 |
static int (*dlci_ioctl_hook) (unsigned int, void __user *); |
1da177e4c Linux-2.6.12-rc2 |
957 |
|
89bddce58 [NET] socket: cod... |
958 |
void dlci_ioctl_set(int (*hook) (unsigned int, void __user *)) |
1da177e4c Linux-2.6.12-rc2 |
959 |
{ |
4a3e2f711 [NET] sem2mutex: ... |
960 |
mutex_lock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
961 |
dlci_ioctl_hook = hook; |
4a3e2f711 [NET] sem2mutex: ... |
962 |
mutex_unlock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
963 964 |
} EXPORT_SYMBOL(dlci_ioctl_set); |
6b96018b2 compat: move sock... |
965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 |
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 |
982 983 984 985 986 987 988 989 |
/* * 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... |
990 |
struct sock *sk; |
1da177e4c Linux-2.6.12-rc2 |
991 992 |
void __user *argp = (void __user *)arg; int pid, err; |
881d966b4 [NET]: Make the d... |
993 |
struct net *net; |
1da177e4c Linux-2.6.12-rc2 |
994 |
|
b69aee04f [NET]: Use file->... |
995 |
sock = file->private_data; |
881d966b4 [NET]: Make the d... |
996 |
sk = sock->sk; |
3b1e0a655 [NET] NETNS: Omit... |
997 |
net = sock_net(sk); |
1da177e4c Linux-2.6.12-rc2 |
998 |
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) { |
881d966b4 [NET]: Make the d... |
999 |
err = dev_ioctl(net, cmd, argp); |
1da177e4c Linux-2.6.12-rc2 |
1000 |
} else |
3d23e349d wext: refactor |
1001 |
#ifdef CONFIG_WEXT_CORE |
1da177e4c Linux-2.6.12-rc2 |
1002 |
if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) { |
881d966b4 [NET]: Make the d... |
1003 |
err = dev_ioctl(net, cmd, argp); |
1da177e4c Linux-2.6.12-rc2 |
1004 |
} else |
3d23e349d wext: refactor |
1005 |
#endif |
89bddce58 [NET] socket: cod... |
1006 |
switch (cmd) { |
1da177e4c Linux-2.6.12-rc2 |
1007 1008 1009 1010 1011 1012 1013 1014 1015 |
case FIOSETOWN: case SIOCSPGRP: err = -EFAULT; if (get_user(pid, (int __user *)argp)) break; err = f_setown(sock->file, pid, 1); break; case FIOGETOWN: case SIOCGPGRP: |
609d7fa95 [PATCH] file: mod... |
1016 |
err = put_user(f_getown(sock->file), |
89bddce58 [NET] socket: cod... |
1017 |
(int __user *)argp); |
1da177e4c Linux-2.6.12-rc2 |
1018 1019 1020 1021 1022 1023 1024 1025 |
break; case SIOCGIFBR: case SIOCSIFBR: case SIOCBRADDBR: case SIOCBRDELBR: err = -ENOPKG; if (!br_ioctl_hook) request_module("bridge"); |
4a3e2f711 [NET] sem2mutex: ... |
1026 |
mutex_lock(&br_ioctl_mutex); |
89bddce58 [NET] socket: cod... |
1027 |
if (br_ioctl_hook) |
881d966b4 [NET]: Make the d... |
1028 |
err = br_ioctl_hook(net, cmd, argp); |
4a3e2f711 [NET] sem2mutex: ... |
1029 |
mutex_unlock(&br_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
1030 1031 1032 1033 1034 1035 |
break; case SIOCGIFVLAN: case SIOCSIFVLAN: err = -ENOPKG; if (!vlan_ioctl_hook) request_module("8021q"); |
4a3e2f711 [NET] sem2mutex: ... |
1036 |
mutex_lock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
1037 |
if (vlan_ioctl_hook) |
881d966b4 [NET]: Make the d... |
1038 |
err = vlan_ioctl_hook(net, argp); |
4a3e2f711 [NET] sem2mutex: ... |
1039 |
mutex_unlock(&vlan_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
1040 |
break; |
1da177e4c Linux-2.6.12-rc2 |
1041 1042 1043 1044 1045 |
case SIOCADDDLCI: case SIOCDELDLCI: err = -ENOPKG; if (!dlci_ioctl_hook) request_module("dlci"); |
7512cbf6e [DLCI]: Fix tiny ... |
1046 1047 |
mutex_lock(&dlci_ioctl_mutex); if (dlci_ioctl_hook) |
1da177e4c Linux-2.6.12-rc2 |
1048 |
err = dlci_ioctl_hook(cmd, argp); |
7512cbf6e [DLCI]: Fix tiny ... |
1049 |
mutex_unlock(&dlci_ioctl_mutex); |
1da177e4c Linux-2.6.12-rc2 |
1050 1051 |
break; default: |
6b96018b2 compat: move sock... |
1052 |
err = sock_do_ioctl(net, sock, cmd, arg); |
1da177e4c Linux-2.6.12-rc2 |
1053 |
break; |
89bddce58 [NET] socket: cod... |
1054 |
} |
1da177e4c Linux-2.6.12-rc2 |
1055 1056 1057 1058 1059 1060 1061 |
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... |
1062 |
|
1da177e4c Linux-2.6.12-rc2 |
1063 1064 1065 1066 1067 1068 1069 1070 1071 |
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 |
1072 |
sock->type = type; |
7420ed23a [NetLabel]: SELin... |
1073 1074 1075 |
err = security_socket_post_create(sock, family, type, protocol, 1); if (err) goto out_release; |
1da177e4c Linux-2.6.12-rc2 |
1076 1077 1078 |
out: *res = sock; return err; |
7420ed23a [NetLabel]: SELin... |
1079 1080 1081 1082 |
out_release: sock_release(sock); sock = NULL; goto out; |
1da177e4c Linux-2.6.12-rc2 |
1083 |
} |
c6d409cfd From abbffa2aa9bd... |
1084 |
EXPORT_SYMBOL(sock_create_lite); |
1da177e4c Linux-2.6.12-rc2 |
1085 1086 |
/* No kernel lock held - perfect */ |
89bddce58 [NET] socket: cod... |
1087 |
static unsigned int sock_poll(struct file *file, poll_table *wait) |
1da177e4c Linux-2.6.12-rc2 |
1088 |
{ |
cbf55001b net: rename low l... |
1089 |
unsigned int busy_flag = 0; |
1da177e4c Linux-2.6.12-rc2 |
1090 1091 1092 |
struct socket *sock; /* |
89bddce58 [NET] socket: cod... |
1093 |
* We can't return errors to poll, so it's either yes or no. |
1da177e4c Linux-2.6.12-rc2 |
1094 |
*/ |
b69aee04f [NET]: Use file->... |
1095 |
sock = file->private_data; |
2d48d67fa net: poll/select ... |
1096 |
|
cbf55001b net: rename low l... |
1097 |
if (sk_can_busy_loop(sock->sk)) { |
2d48d67fa net: poll/select ... |
1098 |
/* this socket can poll_ll so tell the system call */ |
cbf55001b net: rename low l... |
1099 |
busy_flag = POLL_BUSY_LOOP; |
2d48d67fa net: poll/select ... |
1100 1101 |
/* once, only if requested by syscall */ |
cbf55001b net: rename low l... |
1102 1103 |
if (wait && (wait->_key & POLL_BUSY_LOOP)) sk_busy_loop(sock->sk, 1); |
2d48d67fa net: poll/select ... |
1104 |
} |
cbf55001b net: rename low l... |
1105 |
return busy_flag | sock->ops->poll(file, sock, wait); |
1da177e4c Linux-2.6.12-rc2 |
1106 |
} |
89bddce58 [NET] socket: cod... |
1107 |
static int sock_mmap(struct file *file, struct vm_area_struct *vma) |
1da177e4c Linux-2.6.12-rc2 |
1108 |
{ |
b69aee04f [NET]: Use file->... |
1109 |
struct socket *sock = file->private_data; |
1da177e4c Linux-2.6.12-rc2 |
1110 1111 1112 |
return sock->ops->mmap(file, sock, vma); } |
20380731b [NET]: Fix sparse... |
1113 |
static int sock_close(struct inode *inode, struct file *filp) |
1da177e4c Linux-2.6.12-rc2 |
1114 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 |
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... |
1127 |
* or under socket lock |
1da177e4c Linux-2.6.12-rc2 |
1128 1129 1130 1131 |
*/ static int sock_fasync(int fd, struct file *filp, int on) { |
989a29792 fasync: RCU and f... |
1132 1133 |
struct socket *sock = filp->private_data; struct sock *sk = sock->sk; |
eaefd1105 net: add __rcu an... |
1134 |
struct socket_wq *wq; |
1da177e4c Linux-2.6.12-rc2 |
1135 |
|
989a29792 fasync: RCU and f... |
1136 |
if (sk == NULL) |
1da177e4c Linux-2.6.12-rc2 |
1137 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1138 1139 |
lock_sock(sk); |
eaefd1105 net: add __rcu an... |
1140 1141 |
wq = rcu_dereference_protected(sock->wq, sock_owned_by_user(sk)); fasync_helper(fd, filp, on, &wq->fasync_list); |
1da177e4c Linux-2.6.12-rc2 |
1142 |
|
eaefd1105 net: add __rcu an... |
1143 |
if (!wq->fasync_list) |
989a29792 fasync: RCU and f... |
1144 1145 |
sock_reset_flag(sk, SOCK_FASYNC); else |
bcdce7195 net: speedup sk_w... |
1146 |
sock_set_flag(sk, SOCK_FASYNC); |
1da177e4c Linux-2.6.12-rc2 |
1147 |
|
989a29792 fasync: RCU and f... |
1148 |
release_sock(sk); |
1da177e4c Linux-2.6.12-rc2 |
1149 1150 |
return 0; } |
438154823 net: sock_def_rea... |
1151 |
/* This function may be called only under socket lock or callback_lock or rcu_lock */ |
1da177e4c Linux-2.6.12-rc2 |
1152 1153 1154 |
int sock_wake_async(struct socket *sock, int how, int band) { |
438154823 net: sock_def_rea... |
1155 1156 1157 1158 1159 1160 1161 1162 |
struct socket_wq *wq; if (!sock) return -1; rcu_read_lock(); wq = rcu_dereference(sock->wq); if (!wq || !wq->fasync_list) { rcu_read_unlock(); |
1da177e4c Linux-2.6.12-rc2 |
1163 |
return -1; |
438154823 net: sock_def_rea... |
1164 |
} |
89bddce58 [NET] socket: cod... |
1165 |
switch (how) { |
8d8ad9d7c [NET]: Name magic... |
1166 |
case SOCK_WAKE_WAITD: |
1da177e4c Linux-2.6.12-rc2 |
1167 1168 1169 |
if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags)) break; goto call_kill; |
8d8ad9d7c [NET]: Name magic... |
1170 |
case SOCK_WAKE_SPACE: |
1da177e4c Linux-2.6.12-rc2 |
1171 1172 1173 |
if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags)) break; /* fall through */ |
8d8ad9d7c [NET]: Name magic... |
1174 |
case SOCK_WAKE_IO: |
89bddce58 [NET] socket: cod... |
1175 |
call_kill: |
438154823 net: sock_def_rea... |
1176 |
kill_fasync(&wq->fasync_list, SIGIO, band); |
1da177e4c Linux-2.6.12-rc2 |
1177 |
break; |
8d8ad9d7c [NET]: Name magic... |
1178 |
case SOCK_WAKE_URG: |
438154823 net: sock_def_rea... |
1179 |
kill_fasync(&wq->fasync_list, SIGURG, band); |
1da177e4c Linux-2.6.12-rc2 |
1180 |
} |
438154823 net: sock_def_rea... |
1181 |
rcu_read_unlock(); |
1da177e4c Linux-2.6.12-rc2 |
1182 1183 |
return 0; } |
c6d409cfd From abbffa2aa9bd... |
1184 |
EXPORT_SYMBOL(sock_wake_async); |
1da177e4c Linux-2.6.12-rc2 |
1185 |
|
721db93a5 net: Export __soc... |
1186 |
int __sock_create(struct net *net, int family, int type, int protocol, |
89bddce58 [NET] socket: cod... |
1187 |
struct socket **res, int kern) |
1da177e4c Linux-2.6.12-rc2 |
1188 1189 1190 |
{ int err; struct socket *sock; |
55737fda0 [NET]: socket fam... |
1191 |
const struct net_proto_family *pf; |
1da177e4c Linux-2.6.12-rc2 |
1192 1193 |
/* |
89bddce58 [NET] socket: cod... |
1194 |
* Check protocol is in range |
1da177e4c Linux-2.6.12-rc2 |
1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 |
*/ 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) { |
89bddce58 [NET] socket: cod... |
1207 |
static int warned; |
1da177e4c Linux-2.6.12-rc2 |
1208 1209 |
if (!warned) { warned = 1; |
3410f22ea socket: replace s... |
1210 1211 1212 |
pr_info("%s uses obsolete (PF_INET,SOCK_PACKET) ", current->comm); |
1da177e4c Linux-2.6.12-rc2 |
1213 1214 1215 1216 1217 1218 1219 |
} family = PF_PACKET; } err = security_socket_create(family, type, protocol, kern); if (err) return err; |
89bddce58 [NET] socket: cod... |
1220 |
|
55737fda0 [NET]: socket fam... |
1221 1222 1223 1224 1225 1226 1227 |
/* * 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_... |
1228 1229 |
net_warn_ratelimited("socket: no more sockets "); |
55737fda0 [NET]: socket fam... |
1230 1231 1232 1233 1234 |
return -ENFILE; /* Not exactly a match, but its the closest posix thing */ } sock->type = type; |
95a5afca4 net: Remove CONFI... |
1235 |
#ifdef CONFIG_MODULES |
89bddce58 [NET] socket: cod... |
1236 1237 1238 |
/* 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 |
1239 1240 1241 |
* requested real, full-featured networking support upon configuration. * Otherwise module support will break! */ |
190683a9d net: net_families... |
1242 |
if (rcu_access_pointer(net_families[family]) == NULL) |
89bddce58 [NET] socket: cod... |
1243 |
request_module("net-pf-%d", family); |
1da177e4c Linux-2.6.12-rc2 |
1244 |
#endif |
55737fda0 [NET]: socket fam... |
1245 1246 1247 1248 1249 |
rcu_read_lock(); pf = rcu_dereference(net_families[family]); err = -EAFNOSUPPORT; if (!pf) goto out_release; |
1da177e4c Linux-2.6.12-rc2 |
1250 1251 1252 1253 1254 |
/* * 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... |
1255 |
if (!try_module_get(pf->owner)) |
1da177e4c Linux-2.6.12-rc2 |
1256 |
goto out_release; |
55737fda0 [NET]: socket fam... |
1257 1258 |
/* Now protected by module ref count */ rcu_read_unlock(); |
3f378b684 net: pass kern to... |
1259 |
err = pf->create(net, sock, protocol, kern); |
55737fda0 [NET]: socket fam... |
1260 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1261 |
goto out_module_put; |
a79af59ef [NET]: Fix module... |
1262 |
|
1da177e4c Linux-2.6.12-rc2 |
1263 1264 1265 1266 |
/* * 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... |
1267 1268 |
if (!try_module_get(sock->ops->owner)) goto out_module_busy; |
1da177e4c Linux-2.6.12-rc2 |
1269 1270 1271 1272 |
/* * Now that we're done with the ->create function, the [loadable] * module can have its refcnt decremented */ |
55737fda0 [NET]: socket fam... |
1273 |
module_put(pf->owner); |
7420ed23a [NetLabel]: SELin... |
1274 1275 |
err = security_socket_post_create(sock, family, type, protocol, kern); if (err) |
3b1855255 [NET]: Fix unbala... |
1276 |
goto out_sock_release; |
55737fda0 [NET]: socket fam... |
1277 |
*res = sock; |
1da177e4c Linux-2.6.12-rc2 |
1278 |
|
55737fda0 [NET]: socket fam... |
1279 1280 1281 1282 |
return 0; out_module_busy: err = -EAFNOSUPPORT; |
1da177e4c Linux-2.6.12-rc2 |
1283 |
out_module_put: |
55737fda0 [NET]: socket fam... |
1284 1285 1286 |
sock->ops = NULL; module_put(pf->owner); out_sock_release: |
1da177e4c Linux-2.6.12-rc2 |
1287 |
sock_release(sock); |
55737fda0 [NET]: socket fam... |
1288 1289 1290 1291 1292 |
return err; out_release: rcu_read_unlock(); goto out_sock_release; |
1da177e4c Linux-2.6.12-rc2 |
1293 |
} |
721db93a5 net: Export __soc... |
1294 |
EXPORT_SYMBOL(__sock_create); |
1da177e4c Linux-2.6.12-rc2 |
1295 1296 1297 |
int sock_create(int family, int type, int protocol, struct socket **res) { |
1b8d7ae42 [NET]: Make socke... |
1298 |
return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0); |
1da177e4c Linux-2.6.12-rc2 |
1299 |
} |
c6d409cfd From abbffa2aa9bd... |
1300 |
EXPORT_SYMBOL(sock_create); |
1da177e4c Linux-2.6.12-rc2 |
1301 1302 1303 |
int sock_create_kern(int family, int type, int protocol, struct socket **res) { |
1b8d7ae42 [NET]: Make socke... |
1304 |
return __sock_create(&init_net, family, type, protocol, res, 1); |
1da177e4c Linux-2.6.12-rc2 |
1305 |
} |
c6d409cfd From abbffa2aa9bd... |
1306 |
EXPORT_SYMBOL(sock_create_kern); |
1da177e4c Linux-2.6.12-rc2 |
1307 |
|
3e0fa65f8 [CVE-2009-0029] S... |
1308 |
SYSCALL_DEFINE3(socket, int, family, int, type, int, protocol) |
1da177e4c Linux-2.6.12-rc2 |
1309 1310 1311 |
{ int retval; struct socket *sock; |
a677a039b flag parameters: ... |
1312 |
int flags; |
e38b36f32 flag parameters: ... |
1313 1314 1315 1316 1317 |
/* 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: ... |
1318 |
flags = type & ~SOCK_TYPE_MASK; |
77d272005 flag parameters: ... |
1319 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
a677a039b flag parameters: ... |
1320 1321 |
return -EINVAL; type &= SOCK_TYPE_MASK; |
1da177e4c Linux-2.6.12-rc2 |
1322 |
|
aaca0bdca flag parameters: ... |
1323 1324 |
if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
1da177e4c Linux-2.6.12-rc2 |
1325 1326 1327 |
retval = sock_create(family, type, protocol, &sock); if (retval < 0) goto out; |
77d272005 flag parameters: ... |
1328 |
retval = sock_map_fd(sock, flags & (O_CLOEXEC | O_NONBLOCK)); |
1da177e4c Linux-2.6.12-rc2 |
1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 |
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... |
1344 1345 |
SYSCALL_DEFINE4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec) |
1da177e4c Linux-2.6.12-rc2 |
1346 1347 1348 |
{ struct socket *sock1, *sock2; int fd1, fd2, err; |
db3495099 [PATCH] AUDIT_FD_... |
1349 |
struct file *newfile1, *newfile2; |
a677a039b flag parameters: ... |
1350 1351 1352 |
int flags; flags = type & ~SOCK_TYPE_MASK; |
77d272005 flag parameters: ... |
1353 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
a677a039b flag parameters: ... |
1354 1355 |
return -EINVAL; type &= SOCK_TYPE_MASK; |
1da177e4c Linux-2.6.12-rc2 |
1356 |
|
aaca0bdca flag parameters: ... |
1357 1358 |
if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
1da177e4c Linux-2.6.12-rc2 |
1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 |
/* * 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... |
1373 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1374 |
goto out_release_both; |
284076305 take descriptor h... |
1375 |
fd1 = get_unused_fd_flags(flags); |
bf3c23d17 [NET]: Fix error ... |
1376 1377 |
if (unlikely(fd1 < 0)) { err = fd1; |
db3495099 [PATCH] AUDIT_FD_... |
1378 |
goto out_release_both; |
bf3c23d17 [NET]: Fix error ... |
1379 |
} |
d73aa2867 net: handle error... |
1380 |
|
284076305 take descriptor h... |
1381 |
fd2 = get_unused_fd_flags(flags); |
198de4d7a reorder alloc_fd/... |
1382 1383 |
if (unlikely(fd2 < 0)) { err = fd2; |
d73aa2867 net: handle error... |
1384 |
goto out_put_unused_1; |
284076305 take descriptor h... |
1385 |
} |
aab174f0d Merge branch 'for... |
1386 |
newfile1 = sock_alloc_file(sock1, flags, NULL); |
284076305 take descriptor h... |
1387 1388 |
if (unlikely(IS_ERR(newfile1))) { err = PTR_ERR(newfile1); |
d73aa2867 net: handle error... |
1389 |
goto out_put_unused_both; |
284076305 take descriptor h... |
1390 |
} |
aab174f0d Merge branch 'for... |
1391 |
newfile2 = sock_alloc_file(sock2, flags, NULL); |
284076305 take descriptor h... |
1392 1393 |
if (IS_ERR(newfile2)) { err = PTR_ERR(newfile2); |
d73aa2867 net: handle error... |
1394 |
goto out_fput_1; |
db3495099 [PATCH] AUDIT_FD_... |
1395 |
} |
d73aa2867 net: handle error... |
1396 1397 1398 1399 1400 1401 1402 |
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... |
1403 |
audit_fd_pair(fd1, fd2); |
d73aa2867 net: handle error... |
1404 |
|
db3495099 [PATCH] AUDIT_FD_... |
1405 1406 |
fd_install(fd1, newfile1); fd_install(fd2, newfile2); |
1da177e4c Linux-2.6.12-rc2 |
1407 1408 1409 |
/* fd1 and fd2 may be already another descriptors. * Not kernel problem. */ |
d73aa2867 net: handle error... |
1410 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1411 |
|
d73aa2867 net: handle error... |
1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 |
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 |
1425 |
|
d73aa2867 net: handle error... |
1426 1427 1428 1429 |
out_put_unused_both: put_unused_fd(fd2); out_put_unused_1: put_unused_fd(fd1); |
1da177e4c Linux-2.6.12-rc2 |
1430 |
out_release_both: |
89bddce58 [NET] socket: cod... |
1431 |
sock_release(sock2); |
1da177e4c Linux-2.6.12-rc2 |
1432 |
out_release_1: |
89bddce58 [NET] socket: cod... |
1433 |
sock_release(sock1); |
1da177e4c Linux-2.6.12-rc2 |
1434 1435 1436 |
out: return err; } |
1da177e4c Linux-2.6.12-rc2 |
1437 1438 1439 1440 1441 1442 1443 |
/* * 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... |
1444 |
SYSCALL_DEFINE3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen) |
1da177e4c Linux-2.6.12-rc2 |
1445 1446 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1447 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1448 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1449 |
|
89bddce58 [NET] socket: cod... |
1450 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
e71a4783a [NET] core: white... |
1451 |
if (sock) { |
43db362d3 net: get rid of s... |
1452 |
err = move_addr_to_kernel(umyaddr, addrlen, &address); |
89bddce58 [NET] socket: cod... |
1453 1454 |
if (err >= 0) { err = security_socket_bind(sock, |
230b18392 net: Use standard... |
1455 |
(struct sockaddr *)&address, |
89bddce58 [NET] socket: cod... |
1456 |
addrlen); |
6cb153cab [NET]: use fget_l... |
1457 1458 |
if (!err) err = sock->ops->bind(sock, |
89bddce58 [NET] socket: cod... |
1459 |
(struct sockaddr *) |
230b18392 net: Use standard... |
1460 |
&address, addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1461 |
} |
6cb153cab [NET]: use fget_l... |
1462 |
fput_light(sock->file, fput_needed); |
89bddce58 [NET] socket: cod... |
1463 |
} |
1da177e4c Linux-2.6.12-rc2 |
1464 1465 |
return err; } |
1da177e4c Linux-2.6.12-rc2 |
1466 1467 1468 1469 1470 |
/* * 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... |
1471 |
SYSCALL_DEFINE2(listen, int, fd, int, backlog) |
1da177e4c Linux-2.6.12-rc2 |
1472 1473 |
{ struct socket *sock; |
6cb153cab [NET]: use fget_l... |
1474 |
int err, fput_needed; |
b8e1f9b5c [NET] sysctl: mak... |
1475 |
int somaxconn; |
89bddce58 [NET] socket: cod... |
1476 1477 1478 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock) { |
8efa6e93c [NETNS]: Introduc... |
1479 |
somaxconn = sock_net(sock->sk)->core.sysctl_somaxconn; |
95c961747 net: cleanup unsi... |
1480 |
if ((unsigned int)backlog > somaxconn) |
b8e1f9b5c [NET] sysctl: mak... |
1481 |
backlog = somaxconn; |
1da177e4c Linux-2.6.12-rc2 |
1482 1483 |
err = security_socket_listen(sock, backlog); |
6cb153cab [NET]: use fget_l... |
1484 1485 |
if (!err) err = sock->ops->listen(sock, backlog); |
1da177e4c Linux-2.6.12-rc2 |
1486 |
|
6cb153cab [NET]: use fget_l... |
1487 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1488 1489 1490 |
} return err; } |
1da177e4c Linux-2.6.12-rc2 |
1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 |
/* * 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... |
1502 1503 |
SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1504 1505 |
{ struct socket *sock, *newsock; |
39d8c1b6f [NET]: Do not los... |
1506 |
struct file *newfile; |
6cb153cab [NET]: use fget_l... |
1507 |
int err, len, newfd, fput_needed; |
230b18392 net: Use standard... |
1508 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1509 |
|
77d272005 flag parameters: ... |
1510 |
if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) |
aaca0bdca flag parameters: ... |
1511 1512 1513 1514 |
return -EINVAL; if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; |
6cb153cab [NET]: use fget_l... |
1515 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1516 1517 1518 1519 |
if (!sock) goto out; err = -ENFILE; |
c6d409cfd From abbffa2aa9bd... |
1520 1521 |
newsock = sock_alloc(); if (!newsock) |
1da177e4c Linux-2.6.12-rc2 |
1522 1523 1524 1525 |
goto out_put; newsock->type = sock->type; newsock->ops = sock->ops; |
1da177e4c Linux-2.6.12-rc2 |
1526 1527 1528 1529 1530 |
/* * 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... |
1531 |
newfd = get_unused_fd_flags(flags); |
39d8c1b6f [NET]: Do not los... |
1532 1533 |
if (unlikely(newfd < 0)) { err = newfd; |
9a1875e60 [NET]: Fully fix ... |
1534 1535 |
sock_release(newsock); goto out_put; |
39d8c1b6f [NET]: Do not los... |
1536 |
} |
aab174f0d Merge branch 'for... |
1537 |
newfile = sock_alloc_file(newsock, flags, sock->sk->sk_prot_creator->name); |
284076305 take descriptor h... |
1538 1539 1540 1541 1542 1543 |
if (unlikely(IS_ERR(newfile))) { err = PTR_ERR(newfile); put_unused_fd(newfd); sock_release(newsock); goto out_put; } |
39d8c1b6f [NET]: Do not los... |
1544 |
|
a79af59ef [NET]: Fix module... |
1545 1546 |
err = security_socket_accept(sock, newsock); if (err) |
39d8c1b6f [NET]: Do not los... |
1547 |
goto out_fd; |
a79af59ef [NET]: Fix module... |
1548 |
|
1da177e4c Linux-2.6.12-rc2 |
1549 1550 |
err = sock->ops->accept(sock, newsock, sock->file->f_flags); if (err < 0) |
39d8c1b6f [NET]: Do not los... |
1551 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1552 1553 |
if (upeer_sockaddr) { |
230b18392 net: Use standard... |
1554 |
if (newsock->ops->getname(newsock, (struct sockaddr *)&address, |
89bddce58 [NET] socket: cod... |
1555 |
&len, 2) < 0) { |
1da177e4c Linux-2.6.12-rc2 |
1556 |
err = -ECONNABORTED; |
39d8c1b6f [NET]: Do not los... |
1557 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1558 |
} |
43db362d3 net: get rid of s... |
1559 |
err = move_addr_to_user(&address, |
230b18392 net: Use standard... |
1560 |
len, upeer_sockaddr, upeer_addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1561 |
if (err < 0) |
39d8c1b6f [NET]: Do not los... |
1562 |
goto out_fd; |
1da177e4c Linux-2.6.12-rc2 |
1563 1564 1565 |
} /* File flags are not inherited via accept() unlike another OSes. */ |
39d8c1b6f [NET]: Do not los... |
1566 1567 |
fd_install(newfd, newfile); err = newfd; |
1da177e4c Linux-2.6.12-rc2 |
1568 |
|
1da177e4c Linux-2.6.12-rc2 |
1569 |
out_put: |
6cb153cab [NET]: use fget_l... |
1570 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1571 1572 |
out: return err; |
39d8c1b6f [NET]: Do not los... |
1573 |
out_fd: |
9606a2163 [NET]: Fix dentry... |
1574 |
fput(newfile); |
39d8c1b6f [NET]: Do not los... |
1575 |
put_unused_fd(newfd); |
1da177e4c Linux-2.6.12-rc2 |
1576 1577 |
goto out_put; } |
20f37034f [CVE-2009-0029] S... |
1578 1579 |
SYSCALL_DEFINE3(accept, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen) |
aaca0bdca flag parameters: ... |
1580 |
{ |
de11defeb reintroduce accept4 |
1581 |
return sys_accept4(fd, upeer_sockaddr, upeer_addrlen, 0); |
aaca0bdca flag parameters: ... |
1582 |
} |
1da177e4c Linux-2.6.12-rc2 |
1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 |
/* * 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... |
1594 1595 |
SYSCALL_DEFINE3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen) |
1da177e4c Linux-2.6.12-rc2 |
1596 1597 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1598 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1599 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1600 |
|
6cb153cab [NET]: use fget_l... |
1601 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1602 1603 |
if (!sock) goto out; |
43db362d3 net: get rid of s... |
1604 |
err = move_addr_to_kernel(uservaddr, addrlen, &address); |
1da177e4c Linux-2.6.12-rc2 |
1605 1606 |
if (err < 0) goto out_put; |
89bddce58 [NET] socket: cod... |
1607 |
err = |
230b18392 net: Use standard... |
1608 |
security_socket_connect(sock, (struct sockaddr *)&address, addrlen); |
1da177e4c Linux-2.6.12-rc2 |
1609 1610 |
if (err) goto out_put; |
230b18392 net: Use standard... |
1611 |
err = sock->ops->connect(sock, (struct sockaddr *)&address, addrlen, |
1da177e4c Linux-2.6.12-rc2 |
1612 1613 |
sock->file->f_flags); out_put: |
6cb153cab [NET]: use fget_l... |
1614 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1615 1616 1617 1618 1619 1620 1621 1622 |
out: return err; } /* * Get the local address ('name') of a socket object. Move the obtained * name to user space. */ |
20f37034f [CVE-2009-0029] S... |
1623 1624 |
SYSCALL_DEFINE3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len) |
1da177e4c Linux-2.6.12-rc2 |
1625 1626 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1627 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1628 |
int len, err, fput_needed; |
89bddce58 [NET] socket: cod... |
1629 |
|
6cb153cab [NET]: use fget_l... |
1630 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1631 1632 1633 1634 1635 1636 |
if (!sock) goto out; err = security_socket_getsockname(sock); if (err) goto out_put; |
230b18392 net: Use standard... |
1637 |
err = sock->ops->getname(sock, (struct sockaddr *)&address, &len, 0); |
1da177e4c Linux-2.6.12-rc2 |
1638 1639 |
if (err) goto out_put; |
43db362d3 net: get rid of s... |
1640 |
err = move_addr_to_user(&address, len, usockaddr, usockaddr_len); |
1da177e4c Linux-2.6.12-rc2 |
1641 1642 |
out_put: |
6cb153cab [NET]: use fget_l... |
1643 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1644 1645 1646 1647 1648 1649 1650 1651 |
out: return err; } /* * Get the remote address ('name') of a socket object. Move the obtained * name to user space. */ |
20f37034f [CVE-2009-0029] S... |
1652 1653 |
SYSCALL_DEFINE3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len) |
1da177e4c Linux-2.6.12-rc2 |
1654 1655 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1656 |
struct sockaddr_storage address; |
6cb153cab [NET]: use fget_l... |
1657 |
int len, err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1658 |
|
89bddce58 [NET] socket: cod... |
1659 1660 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
1da177e4c Linux-2.6.12-rc2 |
1661 1662 |
err = security_socket_getpeername(sock); if (err) { |
6cb153cab [NET]: use fget_l... |
1663 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1664 1665 |
return err; } |
89bddce58 [NET] socket: cod... |
1666 |
err = |
230b18392 net: Use standard... |
1667 |
sock->ops->getname(sock, (struct sockaddr *)&address, &len, |
89bddce58 [NET] socket: cod... |
1668 |
1); |
1da177e4c Linux-2.6.12-rc2 |
1669 |
if (!err) |
43db362d3 net: get rid of s... |
1670 |
err = move_addr_to_user(&address, len, usockaddr, |
89bddce58 [NET] socket: cod... |
1671 |
usockaddr_len); |
6cb153cab [NET]: use fget_l... |
1672 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1673 1674 1675 1676 1677 1678 1679 1680 1681 |
} 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... |
1682 |
SYSCALL_DEFINE6(sendto, int, fd, void __user *, buff, size_t, len, |
95c961747 net: cleanup unsi... |
1683 |
unsigned int, flags, struct sockaddr __user *, addr, |
3e0fa65f8 [CVE-2009-0029] S... |
1684 |
int, addr_len) |
1da177e4c Linux-2.6.12-rc2 |
1685 1686 |
{ struct socket *sock; |
230b18392 net: Use standard... |
1687 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1688 1689 1690 |
int err; struct msghdr msg; struct iovec iov; |
6cb153cab [NET]: use fget_l... |
1691 |
int fput_needed; |
6cb153cab [NET]: use fget_l... |
1692 |
|
253eacc07 net: Truncate rec... |
1693 1694 |
if (len > INT_MAX) len = INT_MAX; |
de0fa95c1 [NET]: Use sockfd... |
1695 1696 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) |
4387ff75f [NET]: Fix net/so... |
1697 |
goto out; |
6cb153cab [NET]: use fget_l... |
1698 |
|
89bddce58 [NET] socket: cod... |
1699 1700 1701 1702 1703 1704 1705 1706 |
iov.iov_base = buff; iov.iov_len = len; msg.msg_name = NULL; msg.msg_iov = &iov; msg.msg_iovlen = 1; msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_namelen = 0; |
6cb153cab [NET]: use fget_l... |
1707 |
if (addr) { |
43db362d3 net: get rid of s... |
1708 |
err = move_addr_to_kernel(addr, addr_len, &address); |
1da177e4c Linux-2.6.12-rc2 |
1709 1710 |
if (err < 0) goto out_put; |
230b18392 net: Use standard... |
1711 |
msg.msg_name = (struct sockaddr *)&address; |
89bddce58 [NET] socket: cod... |
1712 |
msg.msg_namelen = addr_len; |
1da177e4c Linux-2.6.12-rc2 |
1713 1714 1715 1716 1717 |
} if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; msg.msg_flags = flags; err = sock_sendmsg(sock, &msg, len); |
89bddce58 [NET] socket: cod... |
1718 |
out_put: |
de0fa95c1 [NET]: Use sockfd... |
1719 |
fput_light(sock->file, fput_needed); |
4387ff75f [NET]: Fix net/so... |
1720 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1721 1722 1723 1724 |
return err; } /* |
89bddce58 [NET] socket: cod... |
1725 |
* Send a datagram down a socket. |
1da177e4c Linux-2.6.12-rc2 |
1726 |
*/ |
3e0fa65f8 [CVE-2009-0029] S... |
1727 |
SYSCALL_DEFINE4(send, int, fd, void __user *, buff, size_t, len, |
95c961747 net: cleanup unsi... |
1728 |
unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1729 1730 1731 1732 1733 |
{ return sys_sendto(fd, buff, len, flags, NULL, 0); } /* |
89bddce58 [NET] socket: cod... |
1734 |
* Receive a frame from the socket and optionally record the address of the |
1da177e4c Linux-2.6.12-rc2 |
1735 1736 1737 |
* sender. We verify the buffers are writable and if needed move the * sender address from kernel to user space. */ |
3e0fa65f8 [CVE-2009-0029] S... |
1738 |
SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size, |
95c961747 net: cleanup unsi... |
1739 |
unsigned int, flags, struct sockaddr __user *, addr, |
3e0fa65f8 [CVE-2009-0029] S... |
1740 |
int __user *, addr_len) |
1da177e4c Linux-2.6.12-rc2 |
1741 1742 1743 1744 |
{ struct socket *sock; struct iovec iov; struct msghdr msg; |
230b18392 net: Use standard... |
1745 |
struct sockaddr_storage address; |
89bddce58 [NET] socket: cod... |
1746 |
int err, err2; |
6cb153cab [NET]: use fget_l... |
1747 |
int fput_needed; |
253eacc07 net: Truncate rec... |
1748 1749 |
if (size > INT_MAX) size = INT_MAX; |
de0fa95c1 [NET]: Use sockfd... |
1750 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1751 |
if (!sock) |
de0fa95c1 [NET]: Use sockfd... |
1752 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
1753 |
|
89bddce58 [NET] socket: cod... |
1754 1755 1756 1757 1758 1759 |
msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_iovlen = 1; msg.msg_iov = &iov; iov.iov_len = size; iov.iov_base = ubuf; |
f3d334260 net: rework recvm... |
1760 1761 1762 1763 |
/* 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; |
1da177e4c Linux-2.6.12-rc2 |
1764 1765 |
if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; |
89bddce58 [NET] socket: cod... |
1766 |
err = sock_recvmsg(sock, &msg, size, flags); |
1da177e4c Linux-2.6.12-rc2 |
1767 |
|
89bddce58 [NET] socket: cod... |
1768 |
if (err >= 0 && addr != NULL) { |
43db362d3 net: get rid of s... |
1769 |
err2 = move_addr_to_user(&address, |
230b18392 net: Use standard... |
1770 |
msg.msg_namelen, addr, addr_len); |
89bddce58 [NET] socket: cod... |
1771 1772 |
if (err2 < 0) err = err2; |
1da177e4c Linux-2.6.12-rc2 |
1773 |
} |
de0fa95c1 [NET]: Use sockfd... |
1774 1775 |
fput_light(sock->file, fput_needed); |
4387ff75f [NET]: Fix net/so... |
1776 |
out: |
1da177e4c Linux-2.6.12-rc2 |
1777 1778 1779 1780 |
return err; } /* |
89bddce58 [NET] socket: cod... |
1781 |
* Receive a datagram from a socket. |
1da177e4c Linux-2.6.12-rc2 |
1782 |
*/ |
b7c0ddf5f net: use SYSCALL_... |
1783 1784 |
SYSCALL_DEFINE4(recv, int, fd, void __user *, ubuf, size_t, size, unsigned int, flags) |
1da177e4c Linux-2.6.12-rc2 |
1785 1786 1787 1788 1789 1790 1791 1792 |
{ 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... |
1793 1794 |
SYSCALL_DEFINE5(setsockopt, int, fd, int, level, int, optname, char __user *, optval, int, optlen) |
1da177e4c Linux-2.6.12-rc2 |
1795 |
{ |
6cb153cab [NET]: use fget_l... |
1796 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1797 1798 1799 1800 |
struct socket *sock; if (optlen < 0) return -EINVAL; |
89bddce58 [NET] socket: cod... |
1801 1802 1803 1804 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { err = security_socket_setsockopt(sock, level, optname); |
6cb153cab [NET]: use fget_l... |
1805 1806 |
if (err) goto out_put; |
1da177e4c Linux-2.6.12-rc2 |
1807 1808 |
if (level == SOL_SOCKET) |
89bddce58 [NET] socket: cod... |
1809 1810 1811 |
err = sock_setsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
1812 |
else |
89bddce58 [NET] socket: cod... |
1813 1814 1815 |
err = sock->ops->setsockopt(sock, level, optname, optval, optlen); |
6cb153cab [NET]: use fget_l... |
1816 1817 |
out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1818 1819 1820 1821 1822 1823 1824 1825 |
} 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... |
1826 1827 |
SYSCALL_DEFINE5(getsockopt, int, fd, int, level, int, optname, char __user *, optval, int __user *, optlen) |
1da177e4c Linux-2.6.12-rc2 |
1828 |
{ |
6cb153cab [NET]: use fget_l... |
1829 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1830 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
1831 1832 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
6cb153cab [NET]: use fget_l... |
1833 1834 1835 |
err = security_socket_getsockopt(sock, level, optname); if (err) goto out_put; |
1da177e4c Linux-2.6.12-rc2 |
1836 1837 |
if (level == SOL_SOCKET) |
89bddce58 [NET] socket: cod... |
1838 1839 1840 |
err = sock_getsockopt(sock, level, optname, optval, optlen); |
1da177e4c Linux-2.6.12-rc2 |
1841 |
else |
89bddce58 [NET] socket: cod... |
1842 1843 1844 |
err = sock->ops->getsockopt(sock, level, optname, optval, optlen); |
6cb153cab [NET]: use fget_l... |
1845 1846 |
out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1847 1848 1849 |
} return err; } |
1da177e4c Linux-2.6.12-rc2 |
1850 1851 1852 |
/* * Shutdown a socket. */ |
754fe8d29 [CVE-2009-0029] S... |
1853 |
SYSCALL_DEFINE2(shutdown, int, fd, int, how) |
1da177e4c Linux-2.6.12-rc2 |
1854 |
{ |
6cb153cab [NET]: use fget_l... |
1855 |
int err, fput_needed; |
1da177e4c Linux-2.6.12-rc2 |
1856 |
struct socket *sock; |
89bddce58 [NET] socket: cod... |
1857 1858 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); if (sock != NULL) { |
1da177e4c Linux-2.6.12-rc2 |
1859 |
err = security_socket_shutdown(sock, how); |
6cb153cab [NET]: use fget_l... |
1860 1861 1862 |
if (!err) err = sock->ops->shutdown(sock, how); fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
1863 1864 1865 |
} return err; } |
89bddce58 [NET] socket: cod... |
1866 |
/* A couple of helpful macros for getting the address of the 32/64 bit |
1da177e4c Linux-2.6.12-rc2 |
1867 1868 1869 1870 1871 |
* 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... |
1872 1873 1874 1875 |
struct used_address { struct sockaddr_storage name; unsigned int name_len; }; |
1661bf364 net: heap overflo... |
1876 1877 1878 1879 1880 |
static int copy_msghdr_from_user(struct msghdr *kmsg, struct msghdr __user *umsg) { if (copy_from_user(kmsg, umsg, sizeof(struct msghdr))) return -EFAULT; |
dbb490b96 net: socket: erro... |
1881 1882 1883 |
if (kmsg->msg_namelen < 0) return -EINVAL; |
1661bf364 net: heap overflo... |
1884 |
if (kmsg->msg_namelen > sizeof(struct sockaddr_storage)) |
db31c55a6 net: clamp ->msg_... |
1885 |
kmsg->msg_namelen = sizeof(struct sockaddr_storage); |
1661bf364 net: heap overflo... |
1886 1887 |
return 0; } |
a7526eb5d net: Unbreak comp... |
1888 |
static int ___sys_sendmsg(struct socket *sock, struct msghdr __user *msg, |
95c961747 net: cleanup unsi... |
1889 |
struct msghdr *msg_sys, unsigned int flags, |
c71d8ebe7 net: Fix security... |
1890 |
struct used_address *used_address) |
1da177e4c Linux-2.6.12-rc2 |
1891 |
{ |
89bddce58 [NET] socket: cod... |
1892 1893 |
struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; |
230b18392 net: Use standard... |
1894 |
struct sockaddr_storage address; |
1da177e4c Linux-2.6.12-rc2 |
1895 |
struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; |
b9d717a7b [NET]: Make sure ... |
1896 |
unsigned char ctl[sizeof(struct cmsghdr) + 20] |
89bddce58 [NET] socket: cod... |
1897 1898 |
__attribute__ ((aligned(sizeof(__kernel_size_t)))); /* 20 is size of ipv6_pktinfo */ |
1da177e4c Linux-2.6.12-rc2 |
1899 |
unsigned char *ctl_buf = ctl; |
a74e91061 net: change big i... |
1900 |
int err, ctl_len, total_len; |
89bddce58 [NET] socket: cod... |
1901 |
|
1da177e4c Linux-2.6.12-rc2 |
1902 1903 |
err = -EFAULT; if (MSG_CMSG_COMPAT & flags) { |
228e548e6 net: Add sendmmsg... |
1904 |
if (get_compat_msghdr(msg_sys, msg_compat)) |
1da177e4c Linux-2.6.12-rc2 |
1905 |
return -EFAULT; |
1661bf364 net: heap overflo... |
1906 1907 1908 1909 1910 |
} else { err = copy_msghdr_from_user(msg_sys, msg); if (err) return err; } |
1da177e4c Linux-2.6.12-rc2 |
1911 |
|
228e548e6 net: Add sendmmsg... |
1912 |
if (msg_sys->msg_iovlen > UIO_FASTIOV) { |
a74e91061 net: change big i... |
1913 1914 1915 1916 1917 1918 |
err = -EMSGSIZE; if (msg_sys->msg_iovlen > UIO_MAXIOV) goto out; err = -ENOMEM; iov = kmalloc(msg_sys->msg_iovlen * sizeof(struct iovec), GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
1919 |
if (!iov) |
228e548e6 net: Add sendmmsg... |
1920 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
1921 1922 1923 1924 |
} /* This will also move the address data into kernel space */ if (MSG_CMSG_COMPAT & flags) { |
43db362d3 net: get rid of s... |
1925 |
err = verify_compat_iovec(msg_sys, iov, &address, VERIFY_READ); |
1da177e4c Linux-2.6.12-rc2 |
1926 |
} else |
43db362d3 net: get rid of s... |
1927 |
err = verify_iovec(msg_sys, iov, &address, VERIFY_READ); |
89bddce58 [NET] socket: cod... |
1928 |
if (err < 0) |
1da177e4c Linux-2.6.12-rc2 |
1929 1930 1931 1932 |
goto out_freeiov; total_len = err; err = -ENOBUFS; |
228e548e6 net: Add sendmmsg... |
1933 |
if (msg_sys->msg_controllen > INT_MAX) |
1da177e4c Linux-2.6.12-rc2 |
1934 |
goto out_freeiov; |
228e548e6 net: Add sendmmsg... |
1935 |
ctl_len = msg_sys->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
1936 |
if ((MSG_CMSG_COMPAT & flags) && ctl_len) { |
89bddce58 [NET] socket: cod... |
1937 |
err = |
228e548e6 net: Add sendmmsg... |
1938 |
cmsghdr_from_user_compat_to_kern(msg_sys, sock->sk, ctl, |
89bddce58 [NET] socket: cod... |
1939 |
sizeof(ctl)); |
1da177e4c Linux-2.6.12-rc2 |
1940 1941 |
if (err) goto out_freeiov; |
228e548e6 net: Add sendmmsg... |
1942 1943 |
ctl_buf = msg_sys->msg_control; ctl_len = msg_sys->msg_controllen; |
1da177e4c Linux-2.6.12-rc2 |
1944 |
} else if (ctl_len) { |
89bddce58 [NET] socket: cod... |
1945 |
if (ctl_len > sizeof(ctl)) { |
1da177e4c Linux-2.6.12-rc2 |
1946 |
ctl_buf = sock_kmalloc(sock->sk, ctl_len, GFP_KERNEL); |
89bddce58 [NET] socket: cod... |
1947 |
if (ctl_buf == NULL) |
1da177e4c Linux-2.6.12-rc2 |
1948 1949 1950 1951 |
goto out_freeiov; } err = -EFAULT; /* |
228e548e6 net: Add sendmmsg... |
1952 |
* Careful! Before this, msg_sys->msg_control contains a user pointer. |
1da177e4c Linux-2.6.12-rc2 |
1953 1954 1955 |
* Afterwards, it will be a kernel pointer. Thus the compiler-assisted * checking falls down on this. */ |
fb8621bb6 net: remove addre... |
1956 |
if (copy_from_user(ctl_buf, |
228e548e6 net: Add sendmmsg... |
1957 |
(void __user __force *)msg_sys->msg_control, |
89bddce58 [NET] socket: cod... |
1958 |
ctl_len)) |
1da177e4c Linux-2.6.12-rc2 |
1959 |
goto out_freectl; |
228e548e6 net: Add sendmmsg... |
1960 |
msg_sys->msg_control = ctl_buf; |
1da177e4c Linux-2.6.12-rc2 |
1961 |
} |
228e548e6 net: Add sendmmsg... |
1962 |
msg_sys->msg_flags = flags; |
1da177e4c Linux-2.6.12-rc2 |
1963 1964 |
if (sock->file->f_flags & O_NONBLOCK) |
228e548e6 net: Add sendmmsg... |
1965 |
msg_sys->msg_flags |= MSG_DONTWAIT; |
c71d8ebe7 net: Fix security... |
1966 1967 1968 1969 1970 1971 |
/* * 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:... |
1972 1973 1974 |
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... |
1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 |
used_address->name_len)) { err = sock_sendmsg_nosec(sock, msg_sys, total_len); goto out_freectl; } err = sock_sendmsg(sock, msg_sys, total_len); /* * 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:... |
1986 1987 1988 |
if (msg_sys->msg_name) memcpy(&used_address->name, msg_sys->msg_name, used_address->name_len); |
c71d8ebe7 net: Fix security... |
1989 |
} |
1da177e4c Linux-2.6.12-rc2 |
1990 1991 |
out_freectl: |
89bddce58 [NET] socket: cod... |
1992 |
if (ctl_buf != ctl) |
1da177e4c Linux-2.6.12-rc2 |
1993 1994 1995 |
sock_kfree_s(sock->sk, ctl_buf, ctl_len); out_freeiov: if (iov != iovstack) |
a74e91061 net: change big i... |
1996 |
kfree(iov); |
228e548e6 net: Add sendmmsg... |
1997 1998 1999 2000 2001 2002 2003 |
out: return err; } /* * BSD sendmsg interface */ |
a7526eb5d net: Unbreak comp... |
2004 |
long __sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags) |
228e548e6 net: Add sendmmsg... |
2005 2006 2007 |
{ int fput_needed, err; struct msghdr msg_sys; |
1be374a05 net: Block MSG_CM... |
2008 |
struct socket *sock; |
1be374a05 net: Block MSG_CM... |
2009 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
228e548e6 net: Add sendmmsg... |
2010 2011 |
if (!sock) goto out; |
a7526eb5d net: Unbreak comp... |
2012 |
err = ___sys_sendmsg(sock, msg, &msg_sys, flags, NULL); |
228e548e6 net: Add sendmmsg... |
2013 |
|
6cb153cab [NET]: use fget_l... |
2014 |
fput_light(sock->file, fput_needed); |
89bddce58 [NET] socket: cod... |
2015 |
out: |
1da177e4c Linux-2.6.12-rc2 |
2016 2017 |
return err; } |
a7526eb5d net: Unbreak comp... |
2018 2019 2020 2021 2022 2023 |
SYSCALL_DEFINE3(sendmsg, int, fd, struct msghdr __user *, msg, unsigned int, flags) { if (flags & MSG_CMSG_COMPAT) return -EINVAL; return __sys_sendmsg(fd, msg, flags); } |
228e548e6 net: Add sendmmsg... |
2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 |
/* * 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... |
2036 |
struct used_address used_address; |
228e548e6 net: Add sendmmsg... |
2037 |
|
98382f419 net: Cap number o... |
2038 2039 |
if (vlen > UIO_MAXIOV) vlen = UIO_MAXIOV; |
228e548e6 net: Add sendmmsg... |
2040 2041 2042 2043 2044 2045 |
datagrams = 0; sock = sockfd_lookup_light(fd, &err, &fput_needed); if (!sock) return err; |
c71d8ebe7 net: Fix security... |
2046 |
used_address.name_len = UINT_MAX; |
228e548e6 net: Add sendmmsg... |
2047 2048 |
entry = mmsg; compat_entry = (struct compat_mmsghdr __user *)mmsg; |
728ffb86f net: sendmmsg sho... |
2049 |
err = 0; |
228e548e6 net: Add sendmmsg... |
2050 2051 |
while (datagrams < vlen) { |
228e548e6 net: Add sendmmsg... |
2052 |
if (MSG_CMSG_COMPAT & flags) { |
a7526eb5d net: Unbreak comp... |
2053 2054 |
err = ___sys_sendmsg(sock, (struct msghdr __user *)compat_entry, &msg_sys, flags, &used_address); |
228e548e6 net: Add sendmmsg... |
2055 2056 2057 2058 2059 |
if (err < 0) break; err = __put_user(err, &compat_entry->msg_len); ++compat_entry; } else { |
a7526eb5d net: Unbreak comp... |
2060 2061 2062 |
err = ___sys_sendmsg(sock, (struct msghdr __user *)entry, &msg_sys, flags, &used_address); |
228e548e6 net: Add sendmmsg... |
2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 |
if (err < 0) break; err = put_user(err, &entry->msg_len); ++entry; } if (err) break; ++datagrams; } |
228e548e6 net: Add sendmmsg... |
2073 |
fput_light(sock->file, fput_needed); |
728ffb86f net: sendmmsg sho... |
2074 2075 |
/* We only return an error if no datagrams were able to be sent */ if (datagrams != 0) |
228e548e6 net: Add sendmmsg... |
2076 |
return datagrams; |
228e548e6 net: Add sendmmsg... |
2077 2078 2079 2080 2081 2082 |
return err; } SYSCALL_DEFINE4(sendmmsg, int, fd, struct mmsghdr __user *, mmsg, unsigned int, vlen, unsigned int, flags) { |
1be374a05 net: Block MSG_CM... |
2083 2084 |
if (flags & MSG_CMSG_COMPAT) return -EINVAL; |
228e548e6 net: Add sendmmsg... |
2085 2086 |
return __sys_sendmmsg(fd, mmsg, vlen, flags); } |
a7526eb5d net: Unbreak comp... |
2087 |
static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg, |
95c961747 net: cleanup unsi... |
2088 |
struct msghdr *msg_sys, unsigned int flags, int nosec) |
1da177e4c Linux-2.6.12-rc2 |
2089 |
{ |
89bddce58 [NET] socket: cod... |
2090 2091 |
struct compat_msghdr __user *msg_compat = (struct compat_msghdr __user *)msg; |
1da177e4c Linux-2.6.12-rc2 |
2092 |
struct iovec iovstack[UIO_FASTIOV]; |
89bddce58 [NET] socket: cod... |
2093 |
struct iovec *iov = iovstack; |
1da177e4c Linux-2.6.12-rc2 |
2094 |
unsigned long cmsg_ptr; |
a74e91061 net: change big i... |
2095 |
int err, total_len, len; |
1da177e4c Linux-2.6.12-rc2 |
2096 2097 |
/* kernel mode address */ |
230b18392 net: Use standard... |
2098 |
struct sockaddr_storage addr; |
1da177e4c Linux-2.6.12-rc2 |
2099 2100 2101 2102 |
/* user mode address pointers */ struct sockaddr __user *uaddr; int __user *uaddr_len; |
89bddce58 [NET] socket: cod... |
2103 |
|
1da177e4c Linux-2.6.12-rc2 |
2104 |
if (MSG_CMSG_COMPAT & flags) { |
a2e272554 net: Introduce re... |
2105 |
if (get_compat_msghdr(msg_sys, msg_compat)) |
1da177e4c Linux-2.6.12-rc2 |
2106 |
return -EFAULT; |
1661bf364 net: heap overflo... |
2107 2108 2109 2110 2111 |
} else { err = copy_msghdr_from_user(msg_sys, msg); if (err) return err; } |
1da177e4c Linux-2.6.12-rc2 |
2112 |
|
a2e272554 net: Introduce re... |
2113 |
if (msg_sys->msg_iovlen > UIO_FASTIOV) { |
a74e91061 net: change big i... |
2114 2115 2116 2117 2118 2119 |
err = -EMSGSIZE; if (msg_sys->msg_iovlen > UIO_MAXIOV) goto out; err = -ENOMEM; iov = kmalloc(msg_sys->msg_iovlen * sizeof(struct iovec), GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
2120 |
if (!iov) |
a2e272554 net: Introduce re... |
2121 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
2122 |
} |
f3d334260 net: rework recvm... |
2123 2124 |
/* Save the user-mode address (verify_iovec will change the * kernel msghdr to use the kernel address space) |
1da177e4c Linux-2.6.12-rc2 |
2125 |
*/ |
a2e272554 net: Introduce re... |
2126 |
uaddr = (__force void __user *)msg_sys->msg_name; |
1da177e4c Linux-2.6.12-rc2 |
2127 |
uaddr_len = COMPAT_NAMELEN(msg); |
f3d334260 net: rework recvm... |
2128 |
if (MSG_CMSG_COMPAT & flags) |
43db362d3 net: get rid of s... |
2129 |
err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE); |
f3d334260 net: rework recvm... |
2130 |
else |
43db362d3 net: get rid of s... |
2131 |
err = verify_iovec(msg_sys, iov, &addr, VERIFY_WRITE); |
1da177e4c Linux-2.6.12-rc2 |
2132 2133 |
if (err < 0) goto out_freeiov; |
89bddce58 [NET] socket: cod... |
2134 |
total_len = err; |
1da177e4c Linux-2.6.12-rc2 |
2135 |
|
a2e272554 net: Introduce re... |
2136 2137 |
cmsg_ptr = (unsigned long)msg_sys->msg_control; msg_sys->msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT); |
89bddce58 [NET] socket: cod... |
2138 |
|
f3d334260 net: rework recvm... |
2139 2140 |
/* We assume all kernel code knows the size of sockaddr_storage */ msg_sys->msg_namelen = 0; |
1da177e4c Linux-2.6.12-rc2 |
2141 2142 |
if (sock->file->f_flags & O_NONBLOCK) flags |= MSG_DONTWAIT; |
a2e272554 net: Introduce re... |
2143 2144 |
err = (nosec ? sock_recvmsg_nosec : sock_recvmsg)(sock, msg_sys, total_len, flags); |
1da177e4c Linux-2.6.12-rc2 |
2145 2146 2147 2148 2149 |
if (err < 0) goto out_freeiov; len = err; if (uaddr != NULL) { |
43db362d3 net: get rid of s... |
2150 |
err = move_addr_to_user(&addr, |
a2e272554 net: Introduce re... |
2151 |
msg_sys->msg_namelen, uaddr, |
89bddce58 [NET] socket: cod... |
2152 |
uaddr_len); |
1da177e4c Linux-2.6.12-rc2 |
2153 2154 2155 |
if (err < 0) goto out_freeiov; } |
a2e272554 net: Introduce re... |
2156 |
err = __put_user((msg_sys->msg_flags & ~MSG_CMSG_COMPAT), |
37f7f421c [NET]: Do not lea... |
2157 |
COMPAT_FLAGS(msg)); |
1da177e4c Linux-2.6.12-rc2 |
2158 2159 2160 |
if (err) goto out_freeiov; if (MSG_CMSG_COMPAT & flags) |
a2e272554 net: Introduce re... |
2161 |
err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, |
1da177e4c Linux-2.6.12-rc2 |
2162 2163 |
&msg_compat->msg_controllen); else |
a2e272554 net: Introduce re... |
2164 |
err = __put_user((unsigned long)msg_sys->msg_control - cmsg_ptr, |
1da177e4c Linux-2.6.12-rc2 |
2165 2166 2167 2168 2169 2170 2171 |
&msg->msg_controllen); if (err) goto out_freeiov; err = len; out_freeiov: if (iov != iovstack) |
a74e91061 net: change big i... |
2172 |
kfree(iov); |
a2e272554 net: Introduce re... |
2173 2174 2175 2176 2177 2178 2179 |
out: return err; } /* * BSD recvmsg interface */ |
a7526eb5d net: Unbreak comp... |
2180 |
long __sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags) |
a2e272554 net: Introduce re... |
2181 2182 2183 |
{ int fput_needed, err; struct msghdr msg_sys; |
1be374a05 net: Block MSG_CM... |
2184 |
struct socket *sock; |
1be374a05 net: Block MSG_CM... |
2185 |
sock = sockfd_lookup_light(fd, &err, &fput_needed); |
a2e272554 net: Introduce re... |
2186 2187 |
if (!sock) goto out; |
a7526eb5d net: Unbreak comp... |
2188 |
err = ___sys_recvmsg(sock, msg, &msg_sys, flags, 0); |
a2e272554 net: Introduce re... |
2189 |
|
6cb153cab [NET]: use fget_l... |
2190 |
fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
2191 2192 2193 |
out: return err; } |
a7526eb5d net: Unbreak comp... |
2194 2195 2196 2197 2198 2199 2200 |
SYSCALL_DEFINE3(recvmsg, int, fd, struct msghdr __user *, msg, unsigned int, flags) { if (flags & MSG_CMSG_COMPAT) return -EINVAL; return __sys_recvmsg(fd, msg, flags); } |
a2e272554 net: Introduce re... |
2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 |
/* * 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... |
2211 |
struct compat_mmsghdr __user *compat_entry; |
a2e272554 net: Introduce re... |
2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 |
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... |
2231 |
compat_entry = (struct compat_mmsghdr __user *)mmsg; |
a2e272554 net: Introduce re... |
2232 2233 2234 2235 2236 |
while (datagrams < vlen) { /* * No need to ask LSM for more than the first datagram. */ |
d7256d0eb net: compat_mmsgh... |
2237 |
if (MSG_CMSG_COMPAT & flags) { |
a7526eb5d net: Unbreak comp... |
2238 2239 2240 |
err = ___sys_recvmsg(sock, (struct msghdr __user *)compat_entry, &msg_sys, flags & ~MSG_WAITFORONE, datagrams); |
d7256d0eb net: compat_mmsgh... |
2241 2242 2243 2244 2245 |
if (err < 0) break; err = __put_user(err, &compat_entry->msg_len); ++compat_entry; } else { |
a7526eb5d net: Unbreak comp... |
2246 2247 2248 2249 |
err = ___sys_recvmsg(sock, (struct msghdr __user *)entry, &msg_sys, flags & ~MSG_WAITFORONE, datagrams); |
d7256d0eb net: compat_mmsgh... |
2250 2251 2252 2253 2254 |
if (err < 0) break; err = put_user(err, &entry->msg_len); ++entry; } |
a2e272554 net: Introduce re... |
2255 2256 |
if (err) break; |
a2e272554 net: Introduce re... |
2257 |
++datagrams; |
71c5c1595 net: Add MSG_WAIT... |
2258 2259 2260 |
/* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */ if (flags & MSG_WAITFORONE) flags |= MSG_DONTWAIT; |
a2e272554 net: Introduce re... |
2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 |
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; } out_put: fput_light(sock->file, fput_needed); |
1da177e4c Linux-2.6.12-rc2 |
2281 |
|
a2e272554 net: Introduce re... |
2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 |
if (err == 0) return datagrams; if (datagrams != 0) { /* * We may return less entries than requested (vlen) if the * sock is non block and there aren't enough datagrams... */ if (err != -EAGAIN) { /* * ... 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). */ sock->sk->sk_err = -err; } return datagrams; } return err; } 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... |
2312 2313 |
if (flags & MSG_CMSG_COMPAT) return -EINVAL; |
a2e272554 net: Introduce re... |
2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 |
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 |
2330 2331 |
/* Argument list sizes for sys_socketcall */ #define AL(x) ((x) * sizeof(unsigned long)) |
228e548e6 net: Add sendmmsg... |
2332 |
static const unsigned char nargs[21] = { |
c6d409cfd From abbffa2aa9bd... |
2333 2334 2335 |
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... |
2336 |
AL(4), AL(5), AL(4) |
89bddce58 [NET] socket: cod... |
2337 |
}; |
1da177e4c Linux-2.6.12-rc2 |
2338 2339 2340 |
#undef AL /* |
89bddce58 [NET] socket: cod... |
2341 |
* System call vectors. |
1da177e4c Linux-2.6.12-rc2 |
2342 2343 2344 |
* * Argument checking cleaned up. Saved 20% in size. * This function doesn't need to set the kernel lock because |
89bddce58 [NET] socket: cod... |
2345 |
* it is set by the callees. |
1da177e4c Linux-2.6.12-rc2 |
2346 |
*/ |
3e0fa65f8 [CVE-2009-0029] S... |
2347 |
SYSCALL_DEFINE2(socketcall, int, call, unsigned long __user *, args) |
1da177e4c Linux-2.6.12-rc2 |
2348 |
{ |
2950fa9d3 kernel: audit: be... |
2349 |
unsigned long a[AUDITSC_ARGS]; |
89bddce58 [NET] socket: cod... |
2350 |
unsigned long a0, a1; |
1da177e4c Linux-2.6.12-rc2 |
2351 |
int err; |
47379052b net: Add explicit... |
2352 |
unsigned int len; |
1da177e4c Linux-2.6.12-rc2 |
2353 |
|
228e548e6 net: Add sendmmsg... |
2354 |
if (call < 1 || call > SYS_SENDMMSG) |
1da177e4c Linux-2.6.12-rc2 |
2355 |
return -EINVAL; |
47379052b net: Add explicit... |
2356 2357 2358 |
len = nargs[call]; if (len > sizeof(a)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2359 |
/* copy_from_user should be SMP safe. */ |
47379052b net: Add explicit... |
2360 |
if (copy_from_user(a, args, len)) |
1da177e4c Linux-2.6.12-rc2 |
2361 |
return -EFAULT; |
3ec3b2fba AUDIT: Capture sy... |
2362 |
|
2950fa9d3 kernel: audit: be... |
2363 2364 2365 |
err = audit_socketcall(nargs[call] / sizeof(unsigned long), a); if (err) return err; |
3ec3b2fba AUDIT: Capture sy... |
2366 |
|
89bddce58 [NET] socket: cod... |
2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 |
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 |
2384 2385 |
err = sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], 0); |
89bddce58 [NET] socket: cod... |
2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 |
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: err = sys_sendmsg(a0, (struct msghdr __user *)a1, a[2]); break; |
228e548e6 net: Add sendmmsg... |
2429 2430 2431 |
case SYS_SENDMMSG: err = sys_sendmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3]); break; |
89bddce58 [NET] socket: cod... |
2432 2433 2434 |
case SYS_RECVMSG: err = sys_recvmsg(a0, (struct msghdr __user *)a1, a[2]); break; |
a2e272554 net: Introduce re... |
2435 2436 2437 2438 |
case SYS_RECVMMSG: err = sys_recvmmsg(a0, (struct mmsghdr __user *)a1, a[2], a[3], (struct timespec __user *)a[4]); break; |
de11defeb reintroduce accept4 |
2439 2440 2441 |
case SYS_ACCEPT4: err = sys_accept4(a0, (struct sockaddr __user *)a1, (int __user *)a[2], a[3]); |
aaca0bdca flag parameters: ... |
2442 |
break; |
89bddce58 [NET] socket: cod... |
2443 2444 2445 |
default: err = -EINVAL; break; |
1da177e4c Linux-2.6.12-rc2 |
2446 2447 2448 |
} return err; } |
89bddce58 [NET] socket: cod... |
2449 |
#endif /* __ARCH_WANT_SYS_SOCKETCALL */ |
1da177e4c Linux-2.6.12-rc2 |
2450 |
|
55737fda0 [NET]: socket fam... |
2451 2452 2453 2454 |
/** * sock_register - add a socket protocol handler * @ops: description of protocol * |
1da177e4c Linux-2.6.12-rc2 |
2455 2456 |
* This function is called by a protocol handler that wants to * advertise its address family, and have it linked into the |
55737fda0 [NET]: socket fam... |
2457 2458 |
* socket interface. The value ops->family coresponds to the * socket system call protocol family. |
1da177e4c Linux-2.6.12-rc2 |
2459 |
*/ |
f0fd27d42 [NET]: sock_regis... |
2460 |
int sock_register(const struct net_proto_family *ops) |
1da177e4c Linux-2.6.12-rc2 |
2461 2462 2463 2464 |
{ int err; if (ops->family >= NPROTO) { |
3410f22ea socket: replace s... |
2465 2466 |
pr_crit("protocol %d >= NPROTO(%d) ", ops->family, NPROTO); |
1da177e4c Linux-2.6.12-rc2 |
2467 2468 |
return -ENOBUFS; } |
55737fda0 [NET]: socket fam... |
2469 2470 |
spin_lock(&net_family_lock); |
190683a9d net: net_families... |
2471 2472 |
if (rcu_dereference_protected(net_families[ops->family], lockdep_is_held(&net_family_lock))) |
55737fda0 [NET]: socket fam... |
2473 2474 |
err = -EEXIST; else { |
cf778b00e net: reintroduce ... |
2475 |
rcu_assign_pointer(net_families[ops->family], ops); |
1da177e4c Linux-2.6.12-rc2 |
2476 2477 |
err = 0; } |
55737fda0 [NET]: socket fam... |
2478 |
spin_unlock(&net_family_lock); |
3410f22ea socket: replace s... |
2479 2480 |
pr_info("NET: Registered protocol family %d ", ops->family); |
1da177e4c Linux-2.6.12-rc2 |
2481 2482 |
return err; } |
c6d409cfd From abbffa2aa9bd... |
2483 |
EXPORT_SYMBOL(sock_register); |
1da177e4c Linux-2.6.12-rc2 |
2484 |
|
55737fda0 [NET]: socket fam... |
2485 2486 2487 2488 |
/** * sock_unregister - remove a protocol handler * @family: protocol family to remove * |
1da177e4c Linux-2.6.12-rc2 |
2489 2490 |
* 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... |
2491 2492 2493 2494 2495 2496 |
* 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 |
2497 |
*/ |
f0fd27d42 [NET]: sock_regis... |
2498 |
void sock_unregister(int family) |
1da177e4c Linux-2.6.12-rc2 |
2499 |
{ |
f0fd27d42 [NET]: sock_regis... |
2500 |
BUG_ON(family < 0 || family >= NPROTO); |
1da177e4c Linux-2.6.12-rc2 |
2501 |
|
55737fda0 [NET]: socket fam... |
2502 |
spin_lock(&net_family_lock); |
a9b3cd7f3 rcu: convert uses... |
2503 |
RCU_INIT_POINTER(net_families[family], NULL); |
55737fda0 [NET]: socket fam... |
2504 2505 2506 |
spin_unlock(&net_family_lock); synchronize_rcu(); |
3410f22ea socket: replace s... |
2507 2508 |
pr_info("NET: Unregistered protocol family %d ", family); |
1da177e4c Linux-2.6.12-rc2 |
2509 |
} |
c6d409cfd From abbffa2aa9bd... |
2510 |
EXPORT_SYMBOL(sock_unregister); |
1da177e4c Linux-2.6.12-rc2 |
2511 |
|
77d76ea31 [NET]: Small clea... |
2512 |
static int __init sock_init(void) |
1da177e4c Linux-2.6.12-rc2 |
2513 |
{ |
b3e19d924 fs: scale mntget/... |
2514 |
int err; |
2ca794e5e net sysctl: Initi... |
2515 2516 2517 2518 2519 2520 |
/* * Initialize the network sysctl infrastructure. */ err = net_sysctl_init(); if (err) goto out; |
b3e19d924 fs: scale mntget/... |
2521 |
|
1da177e4c Linux-2.6.12-rc2 |
2522 |
/* |
89bddce58 [NET] socket: cod... |
2523 |
* Initialize skbuff SLAB cache |
1da177e4c Linux-2.6.12-rc2 |
2524 2525 |
*/ skb_init(); |
1da177e4c Linux-2.6.12-rc2 |
2526 2527 |
/* |
89bddce58 [NET] socket: cod... |
2528 |
* Initialize the protocols module. |
1da177e4c Linux-2.6.12-rc2 |
2529 2530 2531 |
*/ init_inodecache(); |
b3e19d924 fs: scale mntget/... |
2532 2533 2534 2535 |
err = register_filesystem(&sock_fs_type); if (err) goto out_fs; |
1da177e4c Linux-2.6.12-rc2 |
2536 |
sock_mnt = kern_mount(&sock_fs_type); |
b3e19d924 fs: scale mntget/... |
2537 2538 2539 2540 |
if (IS_ERR(sock_mnt)) { err = PTR_ERR(sock_mnt); goto out_mount; } |
77d76ea31 [NET]: Small clea... |
2541 2542 |
/* The real protocol initialization is performed in later initcalls. |
1da177e4c Linux-2.6.12-rc2 |
2543 2544 2545 |
*/ #ifdef CONFIG_NETFILTER |
6d11cfdba netfilter: don't ... |
2546 2547 2548 |
err = netfilter_init(); if (err) goto out; |
1da177e4c Linux-2.6.12-rc2 |
2549 |
#endif |
cbeb321a6 [NET]: Fix sock_i... |
2550 |
|
408eccce3 net: ptp: move PT... |
2551 |
ptp_classifier_init(); |
c1f19b51d net: support time... |
2552 |
|
b3e19d924 fs: scale mntget/... |
2553 2554 2555 2556 2557 2558 2559 |
out: return err; out_mount: unregister_filesystem(&sock_fs_type); out_fs: goto out; |
1da177e4c Linux-2.6.12-rc2 |
2560 |
} |
77d76ea31 [NET]: Small clea... |
2561 |
core_initcall(sock_init); /* early initcall */ |
1da177e4c Linux-2.6.12-rc2 |
2562 2563 2564 2565 2566 |
#ifdef CONFIG_PROC_FS void socket_seq_show(struct seq_file *seq) { int cpu; int counter = 0; |
6f9120422 [PATCH] for_each_... |
2567 |
for_each_possible_cpu(cpu) |
89bddce58 [NET] socket: cod... |
2568 |
counter += per_cpu(sockets_in_use, cpu); |
1da177e4c Linux-2.6.12-rc2 |
2569 2570 2571 2572 2573 2574 2575 2576 |
/* It can be negative, by the way. 8) */ if (counter < 0) counter = 0; seq_printf(seq, "sockets: used %d ", counter); } |
89bddce58 [NET] socket: cod... |
2577 |
#endif /* CONFIG_PROC_FS */ |
1da177e4c Linux-2.6.12-rc2 |
2578 |
|
89bbfc95d [NET]: allow 32 b... |
2579 |
#ifdef CONFIG_COMPAT |
6b96018b2 compat: move sock... |
2580 |
static int do_siocgstamp(struct net *net, struct socket *sock, |
644595f89 compat: Handle CO... |
2581 |
unsigned int cmd, void __user *up) |
7a229387d net: copy socket ... |
2582 |
{ |
7a229387d net: copy socket ... |
2583 2584 2585 2586 2587 |
mm_segment_t old_fs = get_fs(); struct timeval ktv; int err; set_fs(KERNEL_DS); |
6b96018b2 compat: move sock... |
2588 |
err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv); |
7a229387d net: copy socket ... |
2589 |
set_fs(old_fs); |
644595f89 compat: Handle CO... |
2590 |
if (!err) |
ed6fe9d61 Fix order of argu... |
2591 |
err = compat_put_timeval(&ktv, up); |
644595f89 compat: Handle CO... |
2592 |
|
7a229387d net: copy socket ... |
2593 2594 |
return err; } |
6b96018b2 compat: move sock... |
2595 |
static int do_siocgstampns(struct net *net, struct socket *sock, |
644595f89 compat: Handle CO... |
2596 |
unsigned int cmd, void __user *up) |
7a229387d net: copy socket ... |
2597 |
{ |
7a229387d net: copy socket ... |
2598 2599 2600 2601 2602 |
mm_segment_t old_fs = get_fs(); struct timespec kts; int err; set_fs(KERNEL_DS); |
6b96018b2 compat: move sock... |
2603 |
err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts); |
7a229387d net: copy socket ... |
2604 |
set_fs(old_fs); |
644595f89 compat: Handle CO... |
2605 |
if (!err) |
ed6fe9d61 Fix order of argu... |
2606 |
err = compat_put_timespec(&kts, up); |
644595f89 compat: Handle CO... |
2607 |
|
7a229387d net: copy socket ... |
2608 2609 |
return err; } |
6b96018b2 compat: move sock... |
2610 |
static int dev_ifname32(struct net *net, struct compat_ifreq __user *uifr32) |
7a229387d net: copy socket ... |
2611 2612 2613 2614 2615 |
{ struct ifreq __user *uifr; int err; uifr = compat_alloc_user_space(sizeof(struct ifreq)); |
6b96018b2 compat: move sock... |
2616 |
if (copy_in_user(uifr, uifr32, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2617 |
return -EFAULT; |
6b96018b2 compat: move sock... |
2618 |
err = dev_ioctl(net, SIOCGIFNAME, uifr); |
7a229387d net: copy socket ... |
2619 2620 |
if (err) return err; |
6b96018b2 compat: move sock... |
2621 |
if (copy_in_user(uifr32, uifr, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2622 2623 2624 2625 |
return -EFAULT; return 0; } |
6b96018b2 compat: move sock... |
2626 |
static int dev_ifconf(struct net *net, struct compat_ifconf __user *uifc32) |
7a229387d net: copy socket ... |
2627 |
{ |
6b96018b2 compat: move sock... |
2628 |
struct compat_ifconf ifc32; |
7a229387d net: copy socket ... |
2629 2630 |
struct ifconf ifc; struct ifconf __user *uifc; |
6b96018b2 compat: move sock... |
2631 |
struct compat_ifreq __user *ifr32; |
7a229387d net: copy socket ... |
2632 2633 2634 |
struct ifreq __user *ifr; unsigned int i, j; int err; |
6b96018b2 compat: move sock... |
2635 |
if (copy_from_user(&ifc32, uifc32, sizeof(struct compat_ifconf))) |
7a229387d net: copy socket ... |
2636 |
return -EFAULT; |
43da5f2e0 net: fix info lea... |
2637 |
memset(&ifc, 0, sizeof(ifc)); |
7a229387d net: copy socket ... |
2638 2639 2640 2641 2642 2643 |
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... |
2644 2645 |
size_t len = ((ifc32.ifc_len / sizeof(struct compat_ifreq)) + 1) * sizeof(struct ifreq); |
7a229387d net: copy socket ... |
2646 2647 2648 2649 |
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... |
2650 |
for (i = 0; i < ifc32.ifc_len; i += sizeof(struct compat_ifreq)) { |
6b96018b2 compat: move sock... |
2651 |
if (copy_in_user(ifr, ifr32, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2652 2653 2654 2655 2656 2657 2658 |
return -EFAULT; ifr++; ifr32++; } } if (copy_to_user(uifc, &ifc, sizeof(struct ifconf))) return -EFAULT; |
6b96018b2 compat: move sock... |
2659 |
err = dev_ioctl(net, SIOCGIFCONF, uifc); |
7a229387d net: copy socket ... |
2660 2661 2662 2663 2664 2665 2666 2667 2668 |
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... |
2669 2670 2671 |
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 ... |
2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 |
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... |
2682 |
i = ((i / sizeof(struct ifreq)) * sizeof(struct compat_ifreq)); |
7a229387d net: copy socket ... |
2683 2684 2685 2686 |
ifc32.ifc_len = i; } else { ifc32.ifc_len = i; } |
6b96018b2 compat: move sock... |
2687 |
if (copy_to_user(uifc32, &ifc32, sizeof(struct compat_ifconf))) |
7a229387d net: copy socket ... |
2688 2689 2690 2691 |
return -EFAULT; return 0; } |
6b96018b2 compat: move sock... |
2692 |
static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32) |
7a229387d net: copy socket ... |
2693 |
{ |
3a7da39d1 ethtool: Compat h... |
2694 2695 2696 2697 |
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 ... |
2698 |
struct ifreq __user *ifr; |
3a7da39d1 ethtool: Compat h... |
2699 2700 |
u32 rule_cnt = 0, actual_rule_cnt; u32 ethcmd; |
7a229387d net: copy socket ... |
2701 |
u32 data; |
3a7da39d1 ethtool: Compat h... |
2702 |
int ret; |
7a229387d net: copy socket ... |
2703 |
|
3a7da39d1 ethtool: Compat h... |
2704 2705 |
if (get_user(data, &ifr32->ifr_ifru.ifru_data)) return -EFAULT; |
7a229387d net: copy socket ... |
2706 |
|
3a7da39d1 ethtool: Compat h... |
2707 2708 2709 |
compat_rxnfc = compat_ptr(data); if (get_user(ethcmd, &compat_rxnfc->cmd)) |
7a229387d net: copy socket ... |
2710 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 |
/* 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... |
2728 |
case ETHTOOL_SRXCLSRLINS: |
3a7da39d1 ethtool: Compat h... |
2729 2730 2731 |
convert_out = true; /* fall through */ case ETHTOOL_SRXCLSRLDEL: |
3a7da39d1 ethtool: Compat h... |
2732 2733 2734 2735 2736 2737 |
buf_size += sizeof(struct ethtool_rxnfc); convert_in = true; break; } ifr = compat_alloc_user_space(buf_size); |
954b12445 ethtool: fix spar... |
2738 |
rxnfc = (void __user *)ifr + ALIGN(sizeof(struct ifreq), 8); |
3a7da39d1 ethtool: Compat h... |
2739 2740 |
if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ)) |
7a229387d net: copy socket ... |
2741 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2742 2743 |
if (put_user(convert_in ? rxnfc : compat_ptr(data), &ifr->ifr_ifru.ifru_data)) |
7a229387d net: copy socket ... |
2744 |
return -EFAULT; |
3a7da39d1 ethtool: Compat h... |
2745 |
if (convert_in) { |
127fe533a v3 ethtool: add n... |
2746 |
/* We expect there to be holes between fs.m_ext and |
3a7da39d1 ethtool: Compat h... |
2747 2748 |
* fs.ring_cookie and at the end of fs, but nowhere else. */ |
127fe533a v3 ethtool: add n... |
2749 2750 2751 2752 |
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... |
2753 2754 2755 2756 2757 2758 2759 |
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... |
2760 2761 |
(void __user *)(&rxnfc->fs.m_ext + 1) - (void __user *)rxnfc) || |
3a7da39d1 ethtool: Compat h... |
2762 2763 |
copy_in_user(&rxnfc->fs.ring_cookie, &compat_rxnfc->fs.ring_cookie, |
954b12445 ethtool: fix spar... |
2764 2765 |
(void __user *)(&rxnfc->fs.location + 1) - (void __user *)&rxnfc->fs.ring_cookie) || |
3a7da39d1 ethtool: Compat h... |
2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 |
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... |
2777 2778 |
(const void __user *)(&rxnfc->fs.m_ext + 1) - (const void __user *)rxnfc) || |
3a7da39d1 ethtool: Compat h... |
2779 2780 |
copy_in_user(&compat_rxnfc->fs.ring_cookie, &rxnfc->fs.ring_cookie, |
954b12445 ethtool: fix spar... |
2781 2782 |
(const void __user *)(&rxnfc->fs.location + 1) - (const void __user *)&rxnfc->fs.ring_cookie) || |
3a7da39d1 ethtool: Compat h... |
2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 |
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 ... |
2808 |
} |
7a50a240c net/compat_ioctl:... |
2809 2810 2811 2812 2813 |
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... |
2814 |
uifr = compat_alloc_user_space(sizeof(*uifr)); |
7a50a240c net/compat_ioctl:... |
2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 |
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... |
2828 2829 |
static int bond_ioctl(struct net *net, unsigned int cmd, struct compat_ifreq __user *ifr32) |
7a229387d net: copy socket ... |
2830 2831 |
{ struct ifreq kifr; |
7a229387d net: copy socket ... |
2832 2833 |
mm_segment_t old_fs; int err; |
7a229387d net: copy socket ... |
2834 2835 2836 2837 2838 2839 |
switch (cmd) { case SIOCBONDENSLAVE: case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: case SIOCBONDCHANGEACTIVE: |
6b96018b2 compat: move sock... |
2840 |
if (copy_from_user(&kifr, ifr32, sizeof(struct compat_ifreq))) |
7a229387d net: copy socket ... |
2841 2842 2843 |
return -EFAULT; old_fs = get_fs(); |
c6d409cfd From abbffa2aa9bd... |
2844 |
set_fs(KERNEL_DS); |
c3f52ae6a socket: suppress ... |
2845 2846 |
err = dev_ioctl(net, cmd, (struct ifreq __user __force *) &kifr); |
c6d409cfd From abbffa2aa9bd... |
2847 |
set_fs(old_fs); |
7a229387d net: copy socket ... |
2848 2849 |
return err; |
7a229387d net: copy socket ... |
2850 |
default: |
07d106d0a vfs: fix up ENOIO... |
2851 |
return -ENOIOCTLCMD; |
ccbd6a5a4 net: Remove unnec... |
2852 |
} |
7a229387d net: copy socket ... |
2853 |
} |
590d4693f net/compat: Merge... |
2854 2855 |
/* 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... |
2856 |
struct compat_ifreq __user *u_ifreq32) |
7a229387d net: copy socket ... |
2857 2858 |
{ struct ifreq __user *u_ifreq64; |
7a229387d net: copy socket ... |
2859 2860 2861 2862 2863 2864 2865 |
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... |
2866 |
if (get_user(data32, &u_ifreq32->ifr_ifru.ifru_data)) |
7a229387d net: copy socket ... |
2867 2868 2869 2870 |
return -EFAULT; data64 = compat_ptr(data32); u_ifreq64 = compat_alloc_user_space(sizeof(*u_ifreq64)); |
7a229387d net: copy socket ... |
2871 2872 2873 |
if (copy_to_user(&u_ifreq64->ifr_ifrn.ifrn_name[0], &tmp_buf[0], IFNAMSIZ)) return -EFAULT; |
417c3522b net/compat: Fix m... |
2874 |
if (put_user(data64, &u_ifreq64->ifr_ifru.ifru_data)) |
7a229387d net: copy socket ... |
2875 |
return -EFAULT; |
6b96018b2 compat: move sock... |
2876 |
return dev_ioctl(net, cmd, u_ifreq64); |
7a229387d net: copy socket ... |
2877 |
} |
6b96018b2 compat: move sock... |
2878 2879 |
static int dev_ifsioc(struct net *net, struct socket *sock, unsigned int cmd, struct compat_ifreq __user *uifr32) |
7a229387d net: copy socket ... |
2880 |
{ |
a2116ed22 net/compat: fix d... |
2881 |
struct ifreq __user *uifr; |
7a229387d net: copy socket ... |
2882 |
int err; |
a2116ed22 net/compat: fix d... |
2883 2884 2885 2886 2887 |
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 ... |
2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 |
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... |
2900 |
case SIOCGIFPFLAGS: |
7a229387d net: copy socket ... |
2901 |
case SIOCGIFTXQLEN: |
fab2532ba net, compat_ioctl... |
2902 2903 |
case SIOCGMIIPHY: case SIOCGMIIREG: |
a2116ed22 net/compat: fix d... |
2904 |
if (copy_in_user(uifr32, uifr, sizeof(*uifr32))) |
7a229387d net: copy socket ... |
2905 2906 2907 2908 2909 2910 |
err = -EFAULT; break; } } return err; } |
a2116ed22 net/compat: fix d... |
2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 |
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 ... |
2921 2922 2923 2924 2925 2926 |
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... |
2927 2928 2929 2930 |
if (err) return -EFAULT; old_fs = get_fs(); |
c6d409cfd From abbffa2aa9bd... |
2931 |
set_fs(KERNEL_DS); |
c3f52ae6a socket: suppress ... |
2932 |
err = dev_ioctl(net, cmd, (void __user __force *)&ifr); |
c6d409cfd From abbffa2aa9bd... |
2933 |
set_fs(old_fs); |
a2116ed22 net/compat: fix d... |
2934 2935 2936 |
if (cmd == SIOCGIFMAP && !err) { err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name)); |
3ddc5b46a kernel-wide: fix ... |
2937 2938 2939 2940 2941 2942 |
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... |
2943 2944 2945 2946 2947 |
if (err) err = -EFAULT; } return err; } |
7a229387d net: copy socket ... |
2948 |
struct rtentry32 { |
c6d409cfd From abbffa2aa9bd... |
2949 |
u32 rt_pad1; |
7a229387d net: copy socket ... |
2950 2951 2952 |
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... |
2953 2954 2955 2956 2957 2958 2959 |
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 ... |
2960 |
/* char * */ u32 rt_dev; /* forcing the device at add */ |
c6d409cfd From abbffa2aa9bd... |
2961 2962 |
u32 rt_mtu; /* per route MTU/Window */ u32 rt_window; /* Window clamping */ |
7a229387d net: copy socket ... |
2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 |
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... |
2978 2979 |
static int routing_ioctl(struct net *net, struct socket *sock, unsigned int cmd, void __user *argp) |
7a229387d net: copy socket ... |
2980 2981 2982 2983 2984 2985 2986 2987 |
{ 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... |
2988 2989 |
if (sock && sock->sk && sock->sk->sk_family == AF_INET6) { /* ipv6 */ struct in6_rtmsg32 __user *ur6 = argp; |
c6d409cfd From abbffa2aa9bd... |
2990 |
ret = copy_from_user(&r6.rtmsg_dst, &(ur6->rtmsg_dst), |
7a229387d net: copy socket ... |
2991 |
3 * sizeof(struct in6_addr)); |
3ddc5b46a kernel-wide: fix ... |
2992 2993 2994 2995 2996 2997 2998 |
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 ... |
2999 3000 3001 |
r = (void *) &r6; } else { /* ipv4 */ |
6b96018b2 compat: move sock... |
3002 |
struct rtentry32 __user *ur4 = argp; |
c6d409cfd From abbffa2aa9bd... |
3003 |
ret = copy_from_user(&r4.rt_dst, &(ur4->rt_dst), |
7a229387d net: copy socket ... |
3004 |
3 * sizeof(struct sockaddr)); |
3ddc5b46a kernel-wide: fix ... |
3005 3006 3007 3008 3009 3010 |
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 ... |
3011 |
if (rtdev) { |
c6d409cfd From abbffa2aa9bd... |
3012 |
ret |= copy_from_user(devname, compat_ptr(rtdev), 15); |
c3f52ae6a socket: suppress ... |
3013 3014 |
r4.rt_dev = (char __user __force *)devname; devname[15] = 0; |
7a229387d net: copy socket ... |
3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 |
} else r4.rt_dev = NULL; r = (void *) &r4; } if (ret) { ret = -EFAULT; goto out; } |
c6d409cfd From abbffa2aa9bd... |
3025 |
set_fs(KERNEL_DS); |
6b96018b2 compat: move sock... |
3026 |
ret = sock_do_ioctl(net, sock, cmd, (unsigned long) r); |
c6d409cfd From abbffa2aa9bd... |
3027 |
set_fs(old_fs); |
7a229387d net: copy socket ... |
3028 3029 |
out: |
7a229387d net: copy socket ... |
3030 3031 3032 3033 3034 |
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... |
3035 |
* use compatible ioctls |
7a229387d net: copy socket ... |
3036 |
*/ |
6b96018b2 compat: move sock... |
3037 |
static int old_bridge_ioctl(compat_ulong_t __user *argp) |
7a229387d net: copy socket ... |
3038 |
{ |
6b96018b2 compat: move sock... |
3039 |
compat_ulong_t tmp; |
7a229387d net: copy socket ... |
3040 |
|
6b96018b2 compat: move sock... |
3041 |
if (get_user(tmp, argp)) |
7a229387d net: copy socket ... |
3042 3043 3044 3045 3046 |
return -EFAULT; if (tmp == BRCTL_GET_VERSION) return BRCTL_VERSION + 1; return -EINVAL; } |
6b96018b2 compat: move sock... |
3047 3048 3049 3050 3051 3052 |
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 ... |
3053 |
|
6b96018b2 compat: move sock... |
3054 |
if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) |
590d4693f net/compat: Merge... |
3055 |
return compat_ifr_data_ioctl(net, cmd, argp); |
6b96018b2 compat: move sock... |
3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 |
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:... |
3067 3068 |
case SIOCWANDEV: return compat_siocwandev(net, argp); |
a2116ed22 net/compat: fix d... |
3069 3070 3071 |
case SIOCGIFMAP: case SIOCSIFMAP: return compat_sioc_ifmap(net, cmd, argp); |
6b96018b2 compat: move sock... |
3072 3073 3074 |
case SIOCBONDENSLAVE: case SIOCBONDRELEASE: case SIOCBONDSETHWADDR: |
6b96018b2 compat: move sock... |
3075 3076 3077 3078 3079 3080 3081 3082 3083 |
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... |
3084 3085 |
case SIOCBONDSLAVEINFOQUERY: case SIOCBONDINFOQUERY: |
a2116ed22 net/compat: fix d... |
3086 |
case SIOCSHWTSTAMP: |
fd468c74b net_tstamp: Add S... |
3087 |
case SIOCGHWTSTAMP: |
590d4693f net/compat: Merge... |
3088 |
return compat_ifr_data_ioctl(net, cmd, argp); |
6b96018b2 compat: move sock... |
3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 |
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... |
3115 3116 3117 |
case SIOCGIFADDR: case SIOCSIFADDR: case SIOCSIFHWBROADCAST: |
6b96018b2 compat: move sock... |
3118 |
case SIOCDIFADDR: |
6b96018b2 compat: move sock... |
3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 |
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... |
3131 3132 3133 3134 |
case SIOCSIFNAME: case SIOCGMIIPHY: case SIOCGMIIREG: case SIOCSMIIREG: |
6b96018b2 compat: move sock... |
3135 |
return dev_ifsioc(net, sock, cmd, argp); |
9177efd39 net, compat_ioctl... |
3136 |
|
6b96018b2 compat: move sock... |
3137 3138 3139 |
case SIOCSARP: case SIOCGARP: case SIOCDARP: |
6b96018b2 compat: move sock... |
3140 |
case SIOCATMARK: |
9177efd39 net, compat_ioctl... |
3141 3142 |
return sock_do_ioctl(net, sock, cmd, arg); } |
6b96018b2 compat: move sock... |
3143 3144 |
return -ENOIOCTLCMD; } |
7a229387d net: copy socket ... |
3145 |
|
95c961747 net: cleanup unsi... |
3146 |
static long compat_sock_ioctl(struct file *file, unsigned int cmd, |
89bddce58 [NET] socket: cod... |
3147 |
unsigned long arg) |
89bbfc95d [NET]: allow 32 b... |
3148 3149 3150 |
{ struct socket *sock = file->private_data; int ret = -ENOIOCTLCMD; |
87de87d5e wext: Dispatch an... |
3151 3152 3153 3154 3155 |
struct sock *sk; struct net *net; sk = sock->sk; net = sock_net(sk); |
89bbfc95d [NET]: allow 32 b... |
3156 3157 3158 |
if (sock->ops->compat_ioctl) ret = sock->ops->compat_ioctl(sock, cmd, arg); |
87de87d5e wext: Dispatch an... |
3159 3160 3161 |
if (ret == -ENOIOCTLCMD && (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)) ret = compat_wext_handle_ioctl(net, cmd, arg); |
6b96018b2 compat: move sock... |
3162 3163 |
if (ret == -ENOIOCTLCMD) ret = compat_sock_ioctl_trans(file, sock, cmd, arg); |
89bbfc95d [NET]: allow 32 b... |
3164 3165 3166 |
return ret; } #endif |
ac5a488ef [NET]: Round out ... |
3167 3168 3169 3170 |
int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen) { return sock->ops->bind(sock, addr, addrlen); } |
c6d409cfd From abbffa2aa9bd... |
3171 |
EXPORT_SYMBOL(kernel_bind); |
ac5a488ef [NET]: Round out ... |
3172 3173 3174 3175 3176 |
int kernel_listen(struct socket *sock, int backlog) { return sock->ops->listen(sock, backlog); } |
c6d409cfd From abbffa2aa9bd... |
3177 |
EXPORT_SYMBOL(kernel_listen); |
ac5a488ef [NET]: Round out ... |
3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 |
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... |
3192 |
*newsock = NULL; |
ac5a488ef [NET]: Round out ... |
3193 3194 3195 3196 |
goto done; } (*newsock)->ops = sock->ops; |
1b08534e5 net: Fix module r... |
3197 |
__module_get((*newsock)->ops->owner); |
ac5a488ef [NET]: Round out ... |
3198 3199 3200 3201 |
done: return err; } |
c6d409cfd From abbffa2aa9bd... |
3202 |
EXPORT_SYMBOL(kernel_accept); |
ac5a488ef [NET]: Round out ... |
3203 3204 |
int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen, |
4768fbcbc [NET]: Fix whites... |
3205 |
int flags) |
ac5a488ef [NET]: Round out ... |
3206 3207 3208 |
{ return sock->ops->connect(sock, addr, addrlen, flags); } |
c6d409cfd From abbffa2aa9bd... |
3209 |
EXPORT_SYMBOL(kernel_connect); |
ac5a488ef [NET]: Round out ... |
3210 3211 3212 3213 3214 3215 |
int kernel_getsockname(struct socket *sock, struct sockaddr *addr, int *addrlen) { return sock->ops->getname(sock, addr, addrlen, 0); } |
c6d409cfd From abbffa2aa9bd... |
3216 |
EXPORT_SYMBOL(kernel_getsockname); |
ac5a488ef [NET]: Round out ... |
3217 3218 3219 3220 3221 3222 |
int kernel_getpeername(struct socket *sock, struct sockaddr *addr, int *addrlen) { return sock->ops->getname(sock, addr, addrlen, 1); } |
c6d409cfd From abbffa2aa9bd... |
3223 |
EXPORT_SYMBOL(kernel_getpeername); |
ac5a488ef [NET]: Round out ... |
3224 3225 3226 3227 3228 |
int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval, int *optlen) { mm_segment_t oldfs = get_fs(); |
fb8621bb6 net: remove addre... |
3229 3230 |
char __user *uoptval; int __user *uoptlen; |
ac5a488ef [NET]: Round out ... |
3231 |
int err; |
fb8621bb6 net: remove addre... |
3232 3233 |
uoptval = (char __user __force *) optval; uoptlen = (int __user __force *) optlen; |
ac5a488ef [NET]: Round out ... |
3234 3235 |
set_fs(KERNEL_DS); if (level == SOL_SOCKET) |
fb8621bb6 net: remove addre... |
3236 |
err = sock_getsockopt(sock, level, optname, uoptval, uoptlen); |
ac5a488ef [NET]: Round out ... |
3237 |
else |
fb8621bb6 net: remove addre... |
3238 3239 |
err = sock->ops->getsockopt(sock, level, optname, uoptval, uoptlen); |
ac5a488ef [NET]: Round out ... |
3240 3241 3242 |
set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3243 |
EXPORT_SYMBOL(kernel_getsockopt); |
ac5a488ef [NET]: Round out ... |
3244 3245 |
int kernel_setsockopt(struct socket *sock, int level, int optname, |
b7058842c net: Make setsock... |
3246 |
char *optval, unsigned int optlen) |
ac5a488ef [NET]: Round out ... |
3247 3248 |
{ mm_segment_t oldfs = get_fs(); |
fb8621bb6 net: remove addre... |
3249 |
char __user *uoptval; |
ac5a488ef [NET]: Round out ... |
3250 |
int err; |
fb8621bb6 net: remove addre... |
3251 |
uoptval = (char __user __force *) optval; |
ac5a488ef [NET]: Round out ... |
3252 3253 |
set_fs(KERNEL_DS); if (level == SOL_SOCKET) |
fb8621bb6 net: remove addre... |
3254 |
err = sock_setsockopt(sock, level, optname, uoptval, optlen); |
ac5a488ef [NET]: Round out ... |
3255 |
else |
fb8621bb6 net: remove addre... |
3256 |
err = sock->ops->setsockopt(sock, level, optname, uoptval, |
ac5a488ef [NET]: Round out ... |
3257 3258 3259 3260 |
optlen); set_fs(oldfs); return err; } |
c6d409cfd From abbffa2aa9bd... |
3261 |
EXPORT_SYMBOL(kernel_setsockopt); |
ac5a488ef [NET]: Round out ... |
3262 3263 3264 3265 3266 3267 3268 3269 3270 |
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... |
3271 |
EXPORT_SYMBOL(kernel_sendpage); |
ac5a488ef [NET]: Round out ... |
3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 |
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... |
3284 |
EXPORT_SYMBOL(kernel_sock_ioctl); |
ac5a488ef [NET]: Round out ... |
3285 |
|
91cf45f02 [NET]: Add the he... |
3286 3287 3288 3289 |
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how) { return sock->ops->shutdown(sock, how); } |
91cf45f02 [NET]: Add the he... |
3290 |
EXPORT_SYMBOL(kernel_sock_shutdown); |