X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fsocket.c;h=dbd1a6851edd7921a46879dca01505fe02055611;hb=666002218d59db271e5c1ede1d80227170c51987;hp=6f2a178819726b7b878aa22a6d79954b61c1e239;hpb=6c89cce75c6f93088a5a2a25bb9674a9194592cc;p=linux-2.6 diff --git a/net/socket.c b/net/socket.c index 6f2a178819..dbd1a6851e 100644 --- a/net/socket.c +++ b/net/socket.c @@ -70,6 +70,8 @@ #include #include #include +#include +#include #include #include #include @@ -272,7 +274,7 @@ int move_addr_to_user(void *kaddr, int klen, void __user *uaddr, int __user *ule #define SOCKFS_MAGIC 0x534F434B -static kmem_cache_t * sock_inode_cachep; +static kmem_cache_t * sock_inode_cachep __read_mostly; static struct inode *sock_alloc_inode(struct super_block *sb) { @@ -331,7 +333,7 @@ static struct super_block *sockfs_get_sb(struct file_system_type *fs_type, return get_sb_pseudo(fs_type, "socket:", &sockfs_ops, SOCKFS_MAGIC); } -static struct vfsmount *sock_mnt; +static struct vfsmount *sock_mnt __read_mostly; static struct file_system_type sock_fs_type = { .name = "sockfs", @@ -404,6 +406,7 @@ int sock_map_fd(struct socket *sock) file->f_mode = FMODE_READ | FMODE_WRITE; file->f_flags = O_RDWR; file->f_pos = 0; + file->private_data = sock; fd_install(fd, file); } @@ -436,6 +439,9 @@ struct socket *sockfd_lookup(int fd, int *err) return NULL; } + if (file->f_op == &socket_file_ops) + return file->private_data; /* set in sock_map_fd */ + inode = file->f_dentry->d_inode; if (!S_ISSOCK(inode->i_mode)) { *err = -ENOTSOCK; @@ -661,7 +667,7 @@ static ssize_t sock_aio_read(struct kiocb *iocb, char __user *ubuf, } iocb->private = x; x->kiocb = iocb; - sock = SOCKET_I(iocb->ki_filp->f_dentry->d_inode); + sock = iocb->ki_filp->private_data; x->async_msg.msg_name = NULL; x->async_msg.msg_namelen = 0; @@ -703,7 +709,7 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const char __user *ubuf, } iocb->private = x; x->kiocb = iocb; - sock = SOCKET_I(iocb->ki_filp->f_dentry->d_inode); + sock = iocb->ki_filp->private_data; x->async_msg.msg_name = NULL; x->async_msg.msg_namelen = 0; @@ -720,13 +726,13 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const char __user *ubuf, return __sock_sendmsg(iocb, sock, &x->async_msg, size); } -ssize_t sock_sendpage(struct file *file, struct page *page, - int offset, size_t size, loff_t *ppos, int more) +static ssize_t sock_sendpage(struct file *file, struct page *page, + int offset, size_t size, loff_t *ppos, int more) { struct socket *sock; int flags; - sock = SOCKET_I(file->f_dentry->d_inode); + sock = file->private_data; flags = !(file->f_flags & O_NONBLOCK) ? 0 : MSG_DONTWAIT; if (more) @@ -735,14 +741,14 @@ ssize_t sock_sendpage(struct file *file, struct page *page, return sock->ops->sendpage(sock, page, offset, size, flags); } -static int sock_readv_writev(int type, struct inode * inode, +static int sock_readv_writev(int type, struct file * file, const struct iovec * iov, long count, size_t size) { struct msghdr msg; struct socket *sock; - sock = SOCKET_I(inode); + sock = file->private_data; msg.msg_name = NULL; msg.msg_namelen = 0; @@ -769,7 +775,7 @@ static ssize_t sock_readv(struct file *file, const struct iovec *vector, int i; for (i = 0 ; i < count ; i++) tot_len += vector[i].iov_len; - return sock_readv_writev(VERIFY_WRITE, file->f_dentry->d_inode, + return sock_readv_writev(VERIFY_WRITE, file, vector, count, tot_len); } @@ -780,7 +786,7 @@ static ssize_t sock_writev(struct file *file, const struct iovec *vector, int i; for (i = 0 ; i < count ; i++) tot_len += vector[i].iov_len; - return sock_readv_writev(VERIFY_READ, file->f_dentry->d_inode, + return sock_readv_writev(VERIFY_READ, file, vector, count, tot_len); } @@ -834,7 +840,7 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg) void __user *argp = (void __user *)arg; int pid, err; - sock = SOCKET_I(file->f_dentry->d_inode); + sock = file->private_data; if (cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) { err = dev_ioctl(cmd, argp); } else @@ -933,18 +939,18 @@ static unsigned int sock_poll(struct file *file, poll_table * wait) /* * We can't return errors to poll, so it's either yes or no. */ - sock = SOCKET_I(file->f_dentry->d_inode); + sock = file->private_data; return sock->ops->poll(file, sock, wait); } static int sock_mmap(struct file * file, struct vm_area_struct * vma) { - struct socket *sock = SOCKET_I(file->f_dentry->d_inode); + struct socket *sock = file->private_data; return sock->ops->mmap(file, sock, vma); } -int sock_close(struct inode *inode, struct file *filp) +static int sock_close(struct inode *inode, struct file *filp) { /* * It was possible the inode is NULL we were @@ -989,7 +995,7 @@ static int sock_fasync(int fd, struct file *filp, int on) return -ENOMEM; } - sock = SOCKET_I(filp->f_dentry->d_inode); + sock = filp->private_data; if ((sk=sock->sk) == NULL) { kfree(fna); @@ -1694,7 +1700,9 @@ asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags) struct socket *sock; char address[MAX_SOCK_ADDR]; struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; - unsigned char ctl[sizeof(struct cmsghdr) + 20]; /* 20 is size of ipv6_pktinfo */ + unsigned char ctl[sizeof(struct cmsghdr) + 20] + __attribute__ ((aligned (sizeof(__kernel_size_t)))); + /* 20 is size of ipv6_pktinfo */ unsigned char *ctl_buf = ctl; struct msghdr msg_sys; int err, ctl_len, iov_size, total_len; @@ -1739,10 +1747,11 @@ asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags) goto out_freeiov; ctl_len = msg_sys.msg_controllen; if ((MSG_CMSG_COMPAT & flags) && ctl_len) { - err = cmsghdr_from_user_compat_to_kern(&msg_sys, ctl, sizeof(ctl)); + err = cmsghdr_from_user_compat_to_kern(&msg_sys, sock->sk, ctl, sizeof(ctl)); if (err) goto out_freeiov; ctl_buf = msg_sys.msg_control; + ctl_len = msg_sys.msg_controllen; } else if (ctl_len) { if (ctl_len > sizeof(ctl)) { @@ -1855,7 +1864,8 @@ asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned int flag if (err < 0) goto out_freeiov; } - err = __put_user(msg_sys.msg_flags, COMPAT_FLAGS(msg)); + err = __put_user((msg_sys.msg_flags & ~MSG_CMSG_COMPAT), + COMPAT_FLAGS(msg)); if (err) goto out_freeiov; if (MSG_CMSG_COMPAT & flags) @@ -2023,9 +2033,6 @@ int sock_unregister(int family) return 0; } - -extern void sk_init(void); - void __init sock_init(void) { /*