diff options
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/net/socket.c b/net/socket.c index 16449d6daeca..6a9ab7a8b1d2 100644 --- a/net/socket.c +++ b/net/socket.c @@ -73,6 +73,7 @@ #include <linux/module.h> #include <linux/highmem.h> #include <linux/mount.h> +#include <linux/pseudo_fs.h> #include <linux/security.h> #include <linux/syscalls.h> #include <linux/compat.h> @@ -338,19 +339,22 @@ static const struct xattr_handler *sockfs_xattr_handlers[] = { NULL }; -static struct dentry *sockfs_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int sockfs_init_fs_context(struct fs_context *fc) { - return mount_pseudo_xattr(fs_type, "socket:", &sockfs_ops, - sockfs_xattr_handlers, - &sockfs_dentry_operations, SOCKFS_MAGIC); + struct pseudo_fs_context *ctx = init_pseudo(fc, SOCKFS_MAGIC); + if (!ctx) + return -ENOMEM; + ctx->ops = &sockfs_ops; + ctx->dops = &sockfs_dentry_operations; + ctx->xattr = sockfs_xattr_handlers; + return 0; } static struct vfsmount *sock_mnt __read_mostly; static struct file_system_type sock_fs_type = { .name = "sockfs", - .mount = sockfs_mount, + .init_fs_context = sockfs_init_fs_context, .kill_sb = kill_anon_super, }; @@ -2222,9 +2226,10 @@ static int copy_msghdr_from_user(struct msghdr *kmsg, kmsg->msg_iocb = NULL; - return import_iovec(save_addr ? READ : WRITE, + err = import_iovec(save_addr ? READ : WRITE, msg.msg_iov, msg.msg_iovlen, UIO_FASTIOV, iov, &kmsg->msg_iter); + return err < 0 ? err : 0; } static int ___sys_sendmsg(struct socket *sock, struct user_msghdr __user *msg, @@ -2326,6 +2331,13 @@ out_freeiov: /* * BSD sendmsg interface */ +long __sys_sendmsg_sock(struct socket *sock, struct user_msghdr __user *msg, + unsigned int flags) +{ + struct msghdr msg_sys; + + return ___sys_sendmsg(sock, msg, &msg_sys, flags, NULL, 0); +} long __sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned int flags, bool forbid_cmsg_compat) @@ -2500,6 +2512,14 @@ out_freeiov: * BSD recvmsg interface */ +long __sys_recvmsg_sock(struct socket *sock, struct user_msghdr __user *msg, + unsigned int flags) +{ + struct msghdr msg_sys; + + return ___sys_recvmsg(sock, msg, &msg_sys, flags, 0); +} + long __sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned int flags, bool forbid_cmsg_compat) { |
