diff options
Diffstat (limited to 'net/9p/trans_fd.c')
| -rw-r--r-- | net/9p/trans_fd.c | 112 |
1 files changed, 46 insertions, 66 deletions
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 4dd873e3a1b..be1cb909d8c 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -42,6 +42,8 @@ #include <net/9p/client.h> #include <net/9p/transport.h> +#include <linux/syscalls.h> /* killme */ + #define P9_PORT 564 #define MAX_SOCK_BUF (64*1024) #define MAXPOLLWADDR 2 @@ -788,24 +790,41 @@ static int p9_fd_open(struct p9_client *client, int rfd, int wfd) static int p9_socket_open(struct p9_client *client, struct socket *csocket) { - int fd, ret; + struct p9_trans_fd *p; + int ret, fd; + + p = kmalloc(sizeof(struct p9_trans_fd), GFP_KERNEL); + if (!p) + return -ENOMEM; csocket->sk->sk_allocation = GFP_NOIO; fd = sock_map_fd(csocket, 0); if (fd < 0) { P9_EPRINTK(KERN_ERR, "p9_socket_open: failed to map fd\n"); + sock_release(csocket); + kfree(p); return fd; } - ret = p9_fd_open(client, fd, fd); - if (ret < 0) { - P9_EPRINTK(KERN_ERR, "p9_socket_open: failed to open fd\n"); + get_file(csocket->file); + get_file(csocket->file); + p->wr = p->rd = csocket->file; + client->trans = p; + client->status = Connected; + + sys_close(fd); /* still racy */ + + p->rd->f_flags |= O_NONBLOCK; + + p->conn = p9_conn_create(client); + if (IS_ERR(p->conn)) { + ret = PTR_ERR(p->conn); + p->conn = NULL; + kfree(p); + sockfd_put(csocket); sockfd_put(csocket); return ret; } - - ((struct p9_trans_fd *)client->trans)->rd->f_flags |= O_NONBLOCK; - return 0; } @@ -883,7 +902,6 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args) struct socket *csocket; struct sockaddr_in sin_server; struct p9_fd_opts opts; - struct p9_trans_fd *p = NULL; /* this gets allocated in p9_fd_open */ err = parse_opts(args, &opts); if (err < 0) @@ -897,12 +915,11 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args) sin_server.sin_family = AF_INET; sin_server.sin_addr.s_addr = in_aton(addr); sin_server.sin_port = htons(opts.port); - sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket); + err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket); - if (!csocket) { + if (err) { P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem creating socket\n"); - err = -EIO; - goto error; + return err; } err = csocket->ops->connect(csocket, @@ -912,30 +929,11 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args) P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem connecting socket to %s\n", addr); - goto error; - } - - err = p9_socket_open(client, csocket); - if (err < 0) - goto error; - - p = (struct p9_trans_fd *) client->trans; - p->conn = p9_conn_create(client); - if (IS_ERR(p->conn)) { - err = PTR_ERR(p->conn); - p->conn = NULL; - goto error; - } - - return 0; - -error: - if (csocket) sock_release(csocket); + return err; + } - kfree(p); - - return err; + return p9_socket_open(client, csocket); } static int @@ -944,49 +942,33 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args) int err; struct socket *csocket; struct sockaddr_un sun_server; - struct p9_trans_fd *p = NULL; /* this gets allocated in p9_fd_open */ csocket = NULL; if (strlen(addr) > UNIX_PATH_MAX) { P9_EPRINTK(KERN_ERR, "p9_trans_unix: address too long: %s\n", addr); - err = -ENAMETOOLONG; - goto error; + return -ENAMETOOLONG; } sun_server.sun_family = PF_UNIX; strcpy(sun_server.sun_path, addr); - sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket); + err = sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket); + if (err < 0) { + P9_EPRINTK(KERN_ERR, "p9_trans_unix: problem creating socket\n"); + return err; + } err = csocket->ops->connect(csocket, (struct sockaddr *)&sun_server, sizeof(struct sockaddr_un) - 1, 0); if (err < 0) { P9_EPRINTK(KERN_ERR, "p9_trans_unix: problem connecting socket: %s: %d\n", addr, err); - goto error; - } - - err = p9_socket_open(client, csocket); - if (err < 0) - goto error; - - p = (struct p9_trans_fd *) client->trans; - p->conn = p9_conn_create(client); - if (IS_ERR(p->conn)) { - err = PTR_ERR(p->conn); - p->conn = NULL; - goto error; - } - - return 0; - -error: - if (csocket) sock_release(csocket); + return err; + } - kfree(p); - return err; + return p9_socket_open(client, csocket); } static int @@ -994,7 +976,7 @@ p9_fd_create(struct p9_client *client, const char *addr, char *args) { int err; struct p9_fd_opts opts; - struct p9_trans_fd *p = NULL; /* this get allocated in p9_fd_open */ + struct p9_trans_fd *p; parse_opts(args, &opts); @@ -1005,21 +987,19 @@ p9_fd_create(struct p9_client *client, const char *addr, char *args) err = p9_fd_open(client, opts.rfd, opts.wfd); if (err < 0) - goto error; + return err; p = (struct p9_trans_fd *) client->trans; p->conn = p9_conn_create(client); if (IS_ERR(p->conn)) { err = PTR_ERR(p->conn); p->conn = NULL; - goto error; + fput(p->rd); + fput(p->wr); + return err; } return 0; - -error: - kfree(p); - return err; } static struct p9_trans_module p9_tcp_trans = { |