diff options
Diffstat (limited to 'openbsc/src/telnet_interface.c')
| -rw-r--r-- | openbsc/src/telnet_interface.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/openbsc/src/telnet_interface.c b/openbsc/src/telnet_interface.c deleted file mode 100644 index 37e1c25ec..000000000 --- a/openbsc/src/telnet_interface.c +++ /dev/null @@ -1,203 +0,0 @@ -/* minimalistic telnet/network interface it might turn into a wire interface */ -/* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org> - * All Rights Reserved - * - * 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 program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#include <sys/socket.h> -#include <netinet/in.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include <osmocore/msgb.h> -#include <osmocore/talloc.h> -#include <osmocore/logging.h> -#include <openbsc/telnet_interface.h> - -#include <vty/buffer.h> - -/* per connection data */ -LLIST_HEAD(active_connections); - -static void *tall_telnet_ctx; - -/* per network data */ -static int telnet_new_connection(struct bsc_fd *fd, unsigned int what); - -static struct bsc_fd server_socket = { - .when = BSC_FD_READ, - .cb = telnet_new_connection, - .priv_nr = 0, -}; - -int telnet_init(void *tall_ctx, void *priv, int port) -{ - struct sockaddr_in sock_addr; - int fd, rc, on = 1; - - tall_telnet_ctx = talloc_named_const(tall_ctx, 1, - "telnet_connection"); - - fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); - - if (fd < 0) { - LOGP(0, LOGL_ERROR, "Telnet interface socket creation failed\n"); - return fd; - } - - setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); - - memset(&sock_addr, 0, sizeof(sock_addr)); - sock_addr.sin_family = AF_INET; - sock_addr.sin_port = htons(port); - sock_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); - - rc = bind(fd, (struct sockaddr*)&sock_addr, sizeof(sock_addr)); - if (bind < 0) { - LOGP(0, LOGL_ERROR, "Telnet interface failed to bind\n"); - close(fd); - return rc; - } - - rc = listen(fd, 0); - if (rc < 0) { - LOGP(0, LOGL_ERROR, "Telnet interface failed to listen\n"); - close(fd); - return rc; - } - - server_socket.data = priv; - server_socket.fd = fd; - bsc_register_fd(&server_socket); - - return 0; -} - -extern const char *openbsc_copyright; - -static void print_welcome(int fd) -{ - int ret; - static char *msg = - "Welcome to the OpenBSC Control interface\n"; - - ret = write(fd, msg, strlen(msg)); - ret = write(fd, openbsc_copyright, strlen(openbsc_copyright)); -} - -int telnet_close_client(struct bsc_fd *fd) -{ - struct telnet_connection *conn = (struct telnet_connection*)fd->data; - - close(fd->fd); - bsc_unregister_fd(fd); - - if (conn->dbg) { - log_del_target(conn->dbg); - talloc_free(conn->dbg); - } - - llist_del(&conn->entry); - talloc_free(conn); - return 0; -} - -static int client_data(struct bsc_fd *fd, unsigned int what) -{ - struct telnet_connection *conn = fd->data; - int rc = 0; - - if (what & BSC_FD_READ) { - conn->fd.when &= ~BSC_FD_READ; - rc = vty_read(conn->vty); - } - - /* vty might have been closed from vithin vty_read() */ - if (!conn->vty) - return rc; - - if (what & BSC_FD_WRITE) { - rc = buffer_flush_all(conn->vty->obuf, fd->fd); - if (rc == BUFFER_EMPTY) - conn->fd.when &= ~BSC_FD_WRITE; - } - - return rc; -} - -static int telnet_new_connection(struct bsc_fd *fd, unsigned int what) -{ - struct telnet_connection *connection; - struct sockaddr_in sockaddr; - socklen_t len = sizeof(sockaddr); - int new_connection = accept(fd->fd, (struct sockaddr*)&sockaddr, &len); - - if (new_connection < 0) { - LOGP(0, LOGL_ERROR, "telnet accept failed\n"); - return new_connection; - } - - connection = talloc_zero(tall_telnet_ctx, struct telnet_connection); - connection->priv = fd->data; - connection->fd.data = connection; - connection->fd.fd = new_connection; - connection->fd.when = BSC_FD_READ; - connection->fd.cb = client_data; - bsc_register_fd(&connection->fd); - llist_add_tail(&connection->entry, &active_connections); - - print_welcome(new_connection); - - connection->vty = vty_create(new_connection, connection); - if (!connection->vty) { - LOGP(0, LOGL_ERROR, "couldn't create VTY\n"); - close(new_connection); - talloc_free(connection); - return -1; - } - - return 0; -} - -/* callback from VTY code */ -void vty_event(enum event event, int sock, struct vty *vty) -{ - struct telnet_connection *connection = vty->priv; - struct bsc_fd *bfd = &connection->fd; - - if (vty->type != VTY_TERM) - return; - - switch (event) { - case VTY_READ: - bfd->when |= BSC_FD_READ; - break; - case VTY_WRITE: - bfd->when |= BSC_FD_WRITE; - break; - case VTY_CLOSED: - /* vty layer is about to free() vty */ - connection->vty = NULL; - telnet_close_client(bfd); - break; - default: - break; - } -} - |