diff options
Diffstat (limited to 'src/server/server.c')
-rw-r--r-- | src/server/server.c | 900 |
1 files changed, 450 insertions, 450 deletions
diff --git a/src/server/server.c b/src/server/server.c index 0aa33834..6aa72b92 100644 --- a/src/server/server.c +++ b/src/server/server.c @@ -1,450 +1,450 @@ -/***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "replacements.h"
-
-#include "server.h"
-
-#include "log.h"
-#include "telnet_server.h"
-#include "target.h"
-
-#include <command.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <signal.h>
-
-service_t *services = NULL;
-
-/* shutdown_openocd == 1: exit the main event loop, and quit the debugger */
-static int shutdown_openocd = 0;
-int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-int add_connection(service_t *service, command_context_t *cmd_ctx)
-{
- unsigned int address_size;
- connection_t *c, **p;
- int retval;
-
- c = malloc(sizeof(connection_t));
- c->fd = -1;
- memset(&c->sin, 0, sizeof(c->sin));
- c->cmd_ctx = copy_command_context(cmd_ctx);
- c->service = service;
- c->input_pending = 0;
- c->priv = NULL;
- c->next = NULL;
-
- address_size = sizeof(c->sin);
- c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
-
- if ((retval = service->new_connection(c)) == ERROR_OK)
- {
- INFO("accepted '%s' connection from %i", service->name, c->sin.sin_port);
- }
- else
- {
- close_socket(c->fd);
- INFO("attempted '%s' connection rejected", service->name);
- free(c);
- }
-
- /* add to the end of linked list */
- for (p = &service->connections; *p; p = &(*p)->next);
- *p = c;
-
- service->max_connections--;
-
- return ERROR_OK;
-}
-
-int remove_connection(service_t *service, connection_t *connection)
-{
- connection_t **p = &service->connections;
- connection_t *c;
-
- /* find connection */
- while(c = *p)
- {
- if (c->fd == connection->fd)
- {
- service->connection_closed(c);
- close_socket(c->fd);
- command_done(c->cmd_ctx);
-
- /* delete connection */
- *p = c->next;
- free(c);
-
- service->max_connections++;
- break;
- }
-
- /* redirect p to next list pointer */
- p = &(*p)->next;
- }
-
- return ERROR_OK;
-}
-
-int add_service(char *name, enum connection_type type, unsigned short port, int max_connections, new_connection_handler_t new_connection_handler, input_handler_t input_handler, connection_closed_handler_t connection_closed_handler, void *priv)
-{
- service_t *c, **p;
- int so_reuseaddr_option = 1;
-
- c = malloc(sizeof(service_t));
-
- c->name = strdup(name);
- c->type = type;
- c->port = port;
- c->max_connections = max_connections;
- c->fd = -1;
- c->connections = NULL;
- c->new_connection = new_connection_handler;
- c->input = input_handler;
- c->connection_closed = connection_closed_handler;
- c->priv = priv;
- c->next = NULL;
-
- if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
- {
- ERROR("error creating socket: %s", strerror(errno));
- exit(-1);
- }
-
- setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));
-
- socket_nonblock(c->fd);
-
- memset(&c->sin, 0, sizeof(c->sin));
- c->sin.sin_family = AF_INET;
- c->sin.sin_addr.s_addr = INADDR_ANY;
- c->sin.sin_port = htons(port);
-
- if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1)
- {
- ERROR("couldn't bind to socket: %s", strerror(errno));
- exit(-1);
- }
-
- if (listen(c->fd, 1) == -1)
- {
- ERROR("couldn't listen on socket: %s", strerror(errno));
- exit(-1);
- }
-
- /* add to the end of linked list */
- for (p = &services; *p; p = &(*p)->next);
- *p = c;
-
- return ERROR_OK;
-}
-
-int remove_service(unsigned short port)
-{
- service_t **p = &services;
- service_t *c;
-
- /* find service */
- while(c = *p)
- {
- if (c->port == port)
- {
- if (c->name)
- free(c->name);
-
- if (c->priv)
- free(c->priv);
-
- /* delete service */
- *p = c->next;
- free(c);
- }
-
- /* redirect p to next list pointer */
- p = &(*p)->next;
- }
-
- return ERROR_OK;
-}
-
-int remove_services()
-{
- service_t *c = services;
-
- /* loop service */
- while(c)
- {
- service_t *next = c->next;
-
- if (c->name)
- free(c->name);
-
- if (c->priv)
- free(c->priv);
-
- /* delete service */
- free(c);
-
- /* remember the last service for unlinking */
- c = next;
- }
-
- services = NULL;
-
- return ERROR_OK;
-}
-
-int server_loop(command_context_t *command_context)
-{
- service_t *service;
-
- /* used in select() */
- fd_set read_fds;
- struct timeval tv;
- int fd_max;
-
- /* used in accept() */
- int retval;
-
-#ifndef _WIN32
- if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
- ERROR("couldn't set SIGPIPE to SIG_IGN");
-#endif
-
- /* do regular tasks after at most 10ms */
- tv.tv_sec = 0;
- tv.tv_usec = 10000;
-
- while(!shutdown_openocd)
- {
- /* monitor sockets for acitvity */
- fd_max = 0;
- FD_ZERO(&read_fds);
-
- /* add service and connection fds to read_fds */
- for (service = services; service; service = service->next)
- {
- if (service->fd != -1)
- {
- /* listen for new connections */
- FD_SET(service->fd, &read_fds);
-
- if (service->fd > fd_max)
- fd_max = service->fd;
- }
-
- if (service->connections)
- {
- connection_t *c;
-
- for (c = service->connections; c; c = c->next)
- {
- /* check for activity on the connection */
- FD_SET(c->fd, &read_fds);
- if (c->fd > fd_max)
- fd_max = c->fd;
- }
- }
- }
-
-#ifndef _WIN32
- /* add STDIN to read_fds */
- FD_SET(fileno(stdin), &read_fds);
-#endif
-
- retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv);
-
- if (retval == -1)
- {
-#ifdef _WIN32
-
- errno = WSAGetLastError();
-
- if (errno == WSAEINTR)
- FD_ZERO(&read_fds);
- else
- {
- ERROR("error during select: %s", strerror(errno));
- exit(-1);
- }
-#else
-
- if (errno == EINTR)
- {
- FD_ZERO(&read_fds);
- }
- else
- {
- ERROR("error during select: %s", strerror(errno));
- exit(-1);
- }
-#endif
- }
-
- target_call_timer_callbacks();
-
- if (retval == 0)
- {
- /* do regular tasks after at most 100ms */
- tv.tv_sec = 0;
- tv.tv_usec = 10000;
- FD_ZERO(&read_fds); /* eCos leaves read_fds unchanged in this case! */
- }
-
- for (service = services; service; service = service->next)
- {
- /* handle new connections on listeners */
- if ((service->fd != -1)
- && (FD_ISSET(service->fd, &read_fds)))
- {
- if (service->max_connections > 0)
- {
- add_connection(service, command_context);
- }
- else
- {
- struct sockaddr_in sin;
- unsigned int address_size = sizeof(sin);
- int tmp_fd;
- tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
- close_socket(tmp_fd);
- INFO("rejected '%s' connection, no more connections allowed", service->name);
- }
- }
-
- /* handle activity on connections */
- if (service->connections)
- {
- connection_t *c;
-
- for (c = service->connections; c;)
- {
- if ((FD_ISSET(c->fd, &read_fds)) || c->input_pending)
- {
- if (service->input(c) != ERROR_OK)
- {
- connection_t *next = c->next;
- remove_connection(service, c);
- INFO("dropped '%s' connection", service->name);
- c = next;
- continue;
- }
- }
- c = c->next;
- }
- }
- }
-
-#ifndef _WIN32
- if (FD_ISSET(fileno(stdin), &read_fds))
- {
- if (getc(stdin) == 'x')
- {
- shutdown_openocd = 1;
- }
- }
-#else
- MSG msg;
- while (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
- {
- if (msg.message == WM_QUIT)
- shutdown_openocd = 1;
- }
-#endif
- }
-
- return ERROR_OK;
-}
-
-#ifdef _WIN32
-BOOL WINAPI ControlHandler(DWORD dwCtrlType)
-{
- shutdown_openocd = 1;
- return TRUE;
-}
-
-void sig_handler(int sig) {
- shutdown_openocd = 1;
-}
-#endif
-
-int server_init()
-{
-#ifdef _WIN32
- WORD wVersionRequested;
- WSADATA wsaData;
-
- wVersionRequested = MAKEWORD( 2, 2 );
-
- if (WSAStartup(wVersionRequested, &wsaData) != 0)
- {
- ERROR("Failed to Open Winsock");
- exit(-1);
- }
-
- SetConsoleCtrlHandler( ControlHandler, TRUE );
-
- signal(SIGINT, sig_handler);
- signal(SIGTERM, sig_handler);
- signal(SIGBREAK, sig_handler);
- signal(SIGABRT, sig_handler);
-#endif
-
-
- return ERROR_OK;
-}
-
-int server_quit()
-{
- remove_services();
-
-#ifdef _WIN32
- WSACleanup();
- SetConsoleCtrlHandler( ControlHandler, FALSE );
-#endif
-
- return ERROR_OK;
-}
-
-int server_register_commands(command_context_t *context)
-{
- register_command(context, NULL, "shutdown", handle_shutdown_command,
- COMMAND_ANY, "shut the server down");
-
- return ERROR_OK;
-}
-
-/* tell the server we want to shut down */
-int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- shutdown_openocd = 1;
-
- return ERROR_COMMAND_CLOSE_CONNECTION;
-}
-
-
+/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * 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., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "replacements.h" + +#include "server.h" + +#include "log.h" +#include "telnet_server.h" +#include "target.h" + +#include <command.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <unistd.h> +#include <sys/types.h> +#include <fcntl.h> +#include <signal.h> + +service_t *services = NULL; + +/* shutdown_openocd == 1: exit the main event loop, and quit the debugger */ +static int shutdown_openocd = 0; +int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +int add_connection(service_t *service, command_context_t *cmd_ctx) +{ + unsigned int address_size; + connection_t *c, **p; + int retval; + + c = malloc(sizeof(connection_t)); + c->fd = -1; + memset(&c->sin, 0, sizeof(c->sin)); + c->cmd_ctx = copy_command_context(cmd_ctx); + c->service = service; + c->input_pending = 0; + c->priv = NULL; + c->next = NULL; + + address_size = sizeof(c->sin); + c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size); + + if ((retval = service->new_connection(c)) == ERROR_OK) + { + INFO("accepted '%s' connection from %i", service->name, c->sin.sin_port); + } + else + { + close_socket(c->fd); + INFO("attempted '%s' connection rejected", service->name); + free(c); + } + + /* add to the end of linked list */ + for (p = &service->connections; *p; p = &(*p)->next); + *p = c; + + service->max_connections--; + + return ERROR_OK; +} + +int remove_connection(service_t *service, connection_t *connection) +{ + connection_t **p = &service->connections; + connection_t *c; + + /* find connection */ + while(c = *p) + { + if (c->fd == connection->fd) + { + service->connection_closed(c); + close_socket(c->fd); + command_done(c->cmd_ctx); + + /* delete connection */ + *p = c->next; + free(c); + + service->max_connections++; + break; + } + + /* redirect p to next list pointer */ + p = &(*p)->next; + } + + return ERROR_OK; +} + +int add_service(char *name, enum connection_type type, unsigned short port, int max_connections, new_connection_handler_t new_connection_handler, input_handler_t input_handler, connection_closed_handler_t connection_closed_handler, void *priv) +{ + service_t *c, **p; + int so_reuseaddr_option = 1; + + c = malloc(sizeof(service_t)); + + c->name = strdup(name); + c->type = type; + c->port = port; + c->max_connections = max_connections; + c->fd = -1; + c->connections = NULL; + c->new_connection = new_connection_handler; + c->input = input_handler; + c->connection_closed = connection_closed_handler; + c->priv = priv; + c->next = NULL; + + if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1) + { + ERROR("error creating socket: %s", strerror(errno)); + exit(-1); + } + + setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int)); + + socket_nonblock(c->fd); + + memset(&c->sin, 0, sizeof(c->sin)); + c->sin.sin_family = AF_INET; + c->sin.sin_addr.s_addr = INADDR_ANY; + c->sin.sin_port = htons(port); + + if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1) + { + ERROR("couldn't bind to socket: %s", strerror(errno)); + exit(-1); + } + + if (listen(c->fd, 1) == -1) + { + ERROR("couldn't listen on socket: %s", strerror(errno)); + exit(-1); + } + + /* add to the end of linked list */ + for (p = &services; *p; p = &(*p)->next); + *p = c; + + return ERROR_OK; +} + +int remove_service(unsigned short port) +{ + service_t **p = &services; + service_t *c; + + /* find service */ + while(c = *p) + { + if (c->port == port) + { + if (c->name) + free(c->name); + + if (c->priv) + free(c->priv); + + /* delete service */ + *p = c->next; + free(c); + } + + /* redirect p to next list pointer */ + p = &(*p)->next; + } + + return ERROR_OK; +} + +int remove_services() +{ + service_t *c = services; + + /* loop service */ + while(c) + { + service_t *next = c->next; + + if (c->name) + free(c->name); + + if (c->priv) + free(c->priv); + + /* delete service */ + free(c); + + /* remember the last service for unlinking */ + c = next; + } + + services = NULL; + + return ERROR_OK; +} + +int server_loop(command_context_t *command_context) +{ + service_t *service; + + /* used in select() */ + fd_set read_fds; + struct timeval tv; + int fd_max; + + /* used in accept() */ + int retval; + +#ifndef _WIN32 + if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) + ERROR("couldn't set SIGPIPE to SIG_IGN"); +#endif + + /* do regular tasks after at most 10ms */ + tv.tv_sec = 0; + tv.tv_usec = 10000; + + while(!shutdown_openocd) + { + /* monitor sockets for acitvity */ + fd_max = 0; + FD_ZERO(&read_fds); + + /* add service and connection fds to read_fds */ + for (service = services; service; service = service->next) + { + if (service->fd != -1) + { + /* listen for new connections */ + FD_SET(service->fd, &read_fds); + + if (service->fd > fd_max) + fd_max = service->fd; + } + + if (service->connections) + { + connection_t *c; + + for (c = service->connections; c; c = c->next) + { + /* check for activity on the connection */ + FD_SET(c->fd, &read_fds); + if (c->fd > fd_max) + fd_max = c->fd; + } + } + } + +#ifndef _WIN32 + /* add STDIN to read_fds */ + FD_SET(fileno(stdin), &read_fds); +#endif + + retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv); + + if (retval == -1) + { +#ifdef _WIN32 + + errno = WSAGetLastError(); + + if (errno == WSAEINTR) + FD_ZERO(&read_fds); + else + { + ERROR("error during select: %s", strerror(errno)); + exit(-1); + } +#else + + if (errno == EINTR) + { + FD_ZERO(&read_fds); + } + else + { + ERROR("error during select: %s", strerror(errno)); + exit(-1); + } +#endif + } + + target_call_timer_callbacks(); + + if (retval == 0) + { + /* do regular tasks after at most 100ms */ + tv.tv_sec = 0; + tv.tv_usec = 10000; + FD_ZERO(&read_fds); /* eCos leaves read_fds unchanged in this case! */ + } + + for (service = services; service; service = service->next) + { + /* handle new connections on listeners */ + if ((service->fd != -1) + && (FD_ISSET(service->fd, &read_fds))) + { + if (service->max_connections > 0) + { + add_connection(service, command_context); + } + else + { + struct sockaddr_in sin; + unsigned int address_size = sizeof(sin); + int tmp_fd; + tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size); + close_socket(tmp_fd); + INFO("rejected '%s' connection, no more connections allowed", service->name); + } + } + + /* handle activity on connections */ + if (service->connections) + { + connection_t *c; + + for (c = service->connections; c;) + { + if ((FD_ISSET(c->fd, &read_fds)) || c->input_pending) + { + if (service->input(c) != ERROR_OK) + { + connection_t *next = c->next; + remove_connection(service, c); + INFO("dropped '%s' connection", service->name); + c = next; + continue; + } + } + c = c->next; + } + } + } + +#ifndef _WIN32 + if (FD_ISSET(fileno(stdin), &read_fds)) + { + if (getc(stdin) == 'x') + { + shutdown_openocd = 1; + } + } +#else + MSG msg; + while (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) + { + if (msg.message == WM_QUIT) + shutdown_openocd = 1; + } +#endif + } + + return ERROR_OK; +} + +#ifdef _WIN32 +BOOL WINAPI ControlHandler(DWORD dwCtrlType) +{ + shutdown_openocd = 1; + return TRUE; +} + +void sig_handler(int sig) { + shutdown_openocd = 1; +} +#endif + +int server_init() +{ +#ifdef _WIN32 + WORD wVersionRequested; + WSADATA wsaData; + + wVersionRequested = MAKEWORD( 2, 2 ); + + if (WSAStartup(wVersionRequested, &wsaData) != 0) + { + ERROR("Failed to Open Winsock"); + exit(-1); + } + + SetConsoleCtrlHandler( ControlHandler, TRUE ); + + signal(SIGINT, sig_handler); + signal(SIGTERM, sig_handler); + signal(SIGBREAK, sig_handler); + signal(SIGABRT, sig_handler); +#endif + + + return ERROR_OK; +} + +int server_quit() +{ + remove_services(); + +#ifdef _WIN32 + WSACleanup(); + SetConsoleCtrlHandler( ControlHandler, FALSE ); +#endif + + return ERROR_OK; +} + +int server_register_commands(command_context_t *context) +{ + register_command(context, NULL, "shutdown", handle_shutdown_command, + COMMAND_ANY, "shut the server down"); + + return ERROR_OK; +} + +/* tell the server we want to shut down */ +int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + shutdown_openocd = 1; + + return ERROR_COMMAND_CLOSE_CONNECTION; +} + + |