-/***************************************************************************\r
- * Copyright (C) 2005 by Dominic Rath *\r
- * Dominic.Rath@gmx.de *\r
- * *\r
- * This program is free software; you can redistribute it and/or modify *\r
- * it under the terms of the GNU General Public License as published by *\r
- * the Free Software Foundation; either version 2 of the License, or *\r
- * (at your option) any later version. *\r
- * *\r
- * This program is distributed in the hope that it will be useful, *\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
- * GNU General Public License for more details. *\r
- * *\r
- * You should have received a copy of the GNU General Public License *\r
- * along with this program; if not, write to the *\r
- * Free Software Foundation, Inc., *\r
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
- ***************************************************************************/\r
-#ifdef HAVE_CONFIG_H\r
-#include "config.h"\r
-#endif\r
-\r
-#include "replacements.h"\r
-\r
-#include "server.h"\r
-\r
-#include "log.h"\r
-#include "telnet_server.h"\r
-#include "target.h"\r
-\r
-#include <command.h>\r
-#include <string.h>\r
-#include <stdlib.h>\r
-#include <errno.h>\r
-#include <unistd.h>\r
-#include <sys/types.h>\r
-#include <fcntl.h>\r
-#include <signal.h>\r
-\r
-service_t *services = NULL;\r
-\r
-/* shutdown_openocd == 1: exit the main event loop, and quit the debugger */\r
-static int shutdown_openocd = 0;\r
-int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int add_connection(service_t *service, command_context_t *cmd_ctx)\r
-{\r
- unsigned int address_size;\r
- connection_t *c, **p;\r
- int retval;\r
- \r
- c = malloc(sizeof(connection_t));\r
- c->fd = -1;\r
- memset(&c->sin, 0, sizeof(c->sin));\r
- c->cmd_ctx = copy_command_context(cmd_ctx);\r
- c->service = service;\r
- c->input_pending = 0;\r
- c->priv = NULL;\r
- c->next = NULL;\r
-\r
- address_size = sizeof(c->sin);\r
- c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);\r
- \r
- if ((retval = service->new_connection(c)) == ERROR_OK)\r
- {\r
- INFO("accepted '%s' connection from %i", service->name, c->sin.sin_port);\r
- }\r
- else\r
- {\r
- close_socket(c->fd);\r
- INFO("attempted '%s' connection rejected", service->name);\r
- free(c);\r
- }\r
- \r
- /* add to the end of linked list */\r
- for (p = &service->connections; *p; p = &(*p)->next);\r
- *p = c;\r
- \r
- service->max_connections--;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int remove_connection(service_t *service, connection_t *connection)\r
-{\r
- connection_t **p = &service->connections;\r
- connection_t *c;\r
- \r
- /* find connection */\r
- while(c = *p)\r
- { \r
- if (c->fd == connection->fd)\r
- { \r
- service->connection_closed(c);\r
- close_socket(c->fd);\r
- command_done(c->cmd_ctx);\r
- \r
- /* delete connection */\r
- *p = c->next;\r
- free(c);\r
- \r
- service->max_connections++;\r
- break;\r
- }\r
- \r
- /* redirect p to next list pointer */\r
- p = &(*p)->next; \r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-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)\r
-{\r
- service_t *c, **p;\r
- int so_reuseaddr_option = 1;\r
- \r
- c = malloc(sizeof(service_t));\r
- \r
- c->name = strdup(name);\r
- c->type = type;\r
- c->port = port;\r
- c->max_connections = max_connections;\r
- c->fd = -1;\r
- c->connections = NULL;\r
- c->new_connection = new_connection_handler;\r
- c->input = input_handler;\r
- c->connection_closed = connection_closed_handler;\r
- c->priv = priv;\r
- c->next = NULL;\r
- \r
- if ((c->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)\r
- {\r
- ERROR("error creating socket: %s", strerror(errno));\r
- exit(-1);\r
- }\r
- \r
- setsockopt(c->fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));\r
- \r
- socket_nonblock(c->fd);\r
- \r
- memset(&c->sin, 0, sizeof(c->sin));\r
- c->sin.sin_family = AF_INET;\r
- c->sin.sin_addr.s_addr = INADDR_ANY;\r
- c->sin.sin_port = htons(port);\r
- \r
- if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1)\r
- {\r
- ERROR("couldn't bind to socket: %s", strerror(errno));\r
- exit(-1);\r
- }\r
- \r
- if (listen(c->fd, 1) == -1)\r
- {\r
- ERROR("couldn't listen on socket: %s", strerror(errno));\r
- exit(-1);\r
- }\r
- \r
- /* add to the end of linked list */\r
- for (p = &services; *p; p = &(*p)->next);\r
- *p = c;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int remove_service(unsigned short port)\r
-{\r
- service_t **p = &services;\r
- service_t *c;\r
- \r
- /* find service */\r
- while(c = *p)\r
- { \r
- if (c->port == port)\r
- { \r
- if (c->name)\r
- free(c->name);\r
- \r
- if (c->priv)\r
- free(c->priv);\r
- \r
- /* delete service */\r
- *p = c->next;\r
- free(c);\r
- }\r
-\r
- /* redirect p to next list pointer */\r
- p = &(*p)->next;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int remove_services()\r
-{\r
- service_t *c = services;\r
-\r
- /* loop service */\r
- while(c)\r
- {\r
- service_t *next = c->next;\r
-\r
- if (c->name)\r
- free(c->name);\r
-\r
- if (c->priv)\r
- free(c->priv);\r
-\r
- /* delete service */\r
- free(c);\r
-\r
- /* remember the last service for unlinking */\r
- c = next;\r
- }\r
-\r
- services = NULL;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int server_loop(command_context_t *command_context)\r
-{\r
- service_t *service;\r
-\r
- /* used in select() */\r
- fd_set read_fds;\r
- struct timeval tv;\r
- int fd_max;\r
- \r
- /* used in accept() */\r
- int retval;\r
- \r
-#ifndef _WIN32\r
- if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)\r
- ERROR("couldn't set SIGPIPE to SIG_IGN");\r
-#endif\r
- \r
- /* do regular tasks after at most 10ms */\r
- tv.tv_sec = 0;\r
- tv.tv_usec = 10000;\r
- \r
- while(!shutdown_openocd)\r
- {\r
- /* monitor sockets for acitvity */\r
- fd_max = 0;\r
- FD_ZERO(&read_fds);\r
-\r
- /* add service and connection fds to read_fds */\r
- for (service = services; service; service = service->next)\r
- {\r
- if (service->fd != -1)\r
- {\r
- /* listen for new connections */\r
- FD_SET(service->fd, &read_fds);\r
-\r
- if (service->fd > fd_max)\r
- fd_max = service->fd;\r
- }\r
- \r
- if (service->connections)\r
- {\r
- connection_t *c;\r
- \r
- for (c = service->connections; c; c = c->next)\r
- {\r
- /* check for activity on the connection */\r
- FD_SET(c->fd, &read_fds);\r
- if (c->fd > fd_max)\r
- fd_max = c->fd;\r
- }\r
- }\r
- }\r
- \r
-#ifndef _WIN32\r
- /* add STDIN to read_fds */\r
- FD_SET(fileno(stdin), &read_fds);\r
-#endif\r
-\r
- retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv);\r
- \r
- if (retval == -1)\r
- {\r
-#ifdef _WIN32\r
-\r
- errno = WSAGetLastError();\r
-\r
- if (errno == WSAEINTR)\r
- FD_ZERO(&read_fds);\r
- else\r
- {\r
- ERROR("error during select: %s", strerror(errno));\r
- exit(-1);\r
- }\r
-#else\r
-\r
- if (errno == EINTR)\r
- {\r
- FD_ZERO(&read_fds);\r
- }\r
- else\r
- {\r
- ERROR("error during select: %s", strerror(errno));\r
- exit(-1);\r
- }\r
-#endif\r
- }\r
- \r
- target_call_timer_callbacks();\r
-\r
- if (retval == 0)\r
- {\r
- /* do regular tasks after at most 100ms */\r
- tv.tv_sec = 0;\r
- tv.tv_usec = 10000;\r
- FD_ZERO(&read_fds); /* eCos leaves read_fds unchanged in this case! */\r
- }\r
- \r
- for (service = services; service; service = service->next)\r
- {\r
- /* handle new connections on listeners */\r
- if ((service->fd != -1) \r
- && (FD_ISSET(service->fd, &read_fds))) \r
- {\r
- if (service->max_connections > 0)\r
- {\r
- add_connection(service, command_context);\r
- }\r
- else\r
- {\r
- struct sockaddr_in sin;\r
- unsigned int address_size = sizeof(sin);\r
- int tmp_fd;\r
- tmp_fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);\r
- close_socket(tmp_fd);\r
- INFO("rejected '%s' connection, no more connections allowed", service->name);\r
- }\r
- }\r
- \r
- /* handle activity on connections */\r
- if (service->connections)\r
- {\r
- connection_t *c;\r
- \r
- for (c = service->connections; c;)\r
- {\r
- if ((FD_ISSET(c->fd, &read_fds)) || c->input_pending)\r
- {\r
- if (service->input(c) != ERROR_OK)\r
- {\r
- connection_t *next = c->next;\r
- remove_connection(service, c);\r
- INFO("dropped '%s' connection", service->name);\r
- c = next;\r
- continue;\r
- }\r
- }\r
- c = c->next;\r
- }\r
- }\r
- }\r
- \r
-#ifndef _WIN32\r
- if (FD_ISSET(fileno(stdin), &read_fds))\r
- {\r
- if (getc(stdin) == 'x')\r
- {\r
- shutdown_openocd = 1;\r
- }\r
- }\r
-#else\r
- MSG msg;\r
- while (PeekMessage(&msg,NULL,0,0,PM_REMOVE))\r
- {\r
- if (msg.message == WM_QUIT)\r
- shutdown_openocd = 1;\r
- }\r
-#endif\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-#ifdef _WIN32\r
-BOOL WINAPI ControlHandler(DWORD dwCtrlType)\r
-{\r
- shutdown_openocd = 1;\r
- return TRUE;\r
-}\r
-\r
-void sig_handler(int sig) {\r
- shutdown_openocd = 1;\r
-}\r
-#endif\r
-\r
-int server_init()\r
-{\r
-#ifdef _WIN32\r
- WORD wVersionRequested;\r
- WSADATA wsaData;\r
-\r
- wVersionRequested = MAKEWORD( 2, 2 );\r
-\r
- if (WSAStartup(wVersionRequested, &wsaData) != 0)\r
- {\r
- ERROR("Failed to Open Winsock");\r
- exit(-1);\r
- }\r
-\r
- SetConsoleCtrlHandler( ControlHandler, TRUE );\r
-\r
- signal(SIGINT, sig_handler);\r
- signal(SIGTERM, sig_handler);\r
- signal(SIGBREAK, sig_handler);\r
- signal(SIGABRT, sig_handler);\r
-#endif\r
-\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int server_quit()\r
-{\r
- remove_services();\r
-\r
-#ifdef _WIN32\r
- WSACleanup();\r
- SetConsoleCtrlHandler( ControlHandler, FALSE );\r
-#endif\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int server_register_commands(command_context_t *context)\r
-{\r
- register_command(context, NULL, "shutdown", handle_shutdown_command,\r
- COMMAND_ANY, "shut the server down");\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-/* tell the server we want to shut down */\r
-int handle_shutdown_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- shutdown_openocd = 1;\r
-\r
- return ERROR_COMMAND_CLOSE_CONNECTION;\r
-}\r
-\r
-\r
+/***************************************************************************
+ * Copyright (C) 2005 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * *
+ * Copyright (C) 2007-2010 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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, see <http://www.gnu.org/licenses/>. *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "server.h"
+#include <target/target.h>
+#include <target/target_request.h>
+#include <target/openrisc/jsp_server.h>
+#include "openocd.h"
+#include "tcl_server.h"
+#include "telnet_server.h"
+
+#include <signal.h>
+
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#ifndef _WIN32
+#include <netinet/tcp.h>
+#endif
+
+static struct service *services;
+
+enum shutdown_reason {
+ CONTINUE_MAIN_LOOP, /* stay in main event loop */
+ SHUTDOWN_REQUESTED, /* set by shutdown command; exit the event loop and quit the debugger */
+ SHUTDOWN_WITH_ERROR_CODE, /* set by shutdown command; quit with non-zero return code */
+ SHUTDOWN_WITH_SIGNAL_CODE /* set by sig_handler; exec shutdown then exit with signal as return code */
+};
+static enum shutdown_reason shutdown_openocd = CONTINUE_MAIN_LOOP;
+
+/* store received signal to exit application by killing ourselves */
+static int last_signal;
+
+/* set the polling period to 100ms */
+static int polling_period = 100;
+
+/* address by name on which to listen for incoming TCP/IP connections */
+static char *bindto_name;
+
+static int add_connection(struct service *service, struct command_context *cmd_ctx)
+{
+ socklen_t address_size;
+ struct connection *c, **p;
+ int retval;
+ int flag = 1;
+
+ c = malloc(sizeof(struct connection));
+ c->fd = -1;
+ c->fd_out = -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;
+
+ if (service->type == CONNECTION_TCP) {
+ address_size = sizeof(c->sin);
+
+ c->fd = accept(service->fd, (struct sockaddr *)&service->sin, &address_size);
+ c->fd_out = c->fd;
+
+ /* This increases performance dramatically for e.g. GDB load which
+ * does not have a sliding window protocol.
+ *
+ * Ignore errors from this fn as it probably just means less performance
+ */
+ setsockopt(c->fd, /* socket affected */
+ IPPROTO_TCP, /* set option at TCP level */
+ TCP_NODELAY, /* name of option */
+ (char *)&flag, /* the cast is historical cruft */
+ sizeof(int)); /* length of option value */
+
+ LOG_INFO("accepting '%s' connection on tcp/%s", service->name, service->port);
+ retval = service->new_connection(c);
+ if (retval != ERROR_OK) {
+ close_socket(c->fd);
+ LOG_ERROR("attempted '%s' connection rejected", service->name);
+ command_done(c->cmd_ctx);
+ free(c);
+ return retval;
+ }
+ } else if (service->type == CONNECTION_STDINOUT) {
+ c->fd = service->fd;
+ c->fd_out = fileno(stdout);
+
+#ifdef _WIN32
+ /* we are using stdin/out so ignore ctrl-c under windoze */
+ SetConsoleCtrlHandler(NULL, TRUE);
+#endif
+
+ /* do not check for new connections again on stdin */
+ service->fd = -1;
+
+ LOG_INFO("accepting '%s' connection from pipe", service->name);
+ retval = service->new_connection(c);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("attempted '%s' connection rejected", service->name);
+ command_done(c->cmd_ctx);
+ free(c);
+ return retval;
+ }
+ } else if (service->type == CONNECTION_PIPE) {
+ c->fd = service->fd;
+ /* do not check for new connections again on stdin */
+ service->fd = -1;
+
+ char *out_file = alloc_printf("%so", service->port);
+ c->fd_out = open(out_file, O_WRONLY);
+ free(out_file);
+ if (c->fd_out == -1) {
+ LOG_ERROR("could not open %s", service->port);
+ command_done(c->cmd_ctx);
+ free(c);
+ return ERROR_FAIL;
+ }
+
+ LOG_INFO("accepting '%s' connection from pipe %s", service->name, service->port);
+ retval = service->new_connection(c);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("attempted '%s' connection rejected", service->name);
+ command_done(c->cmd_ctx);
+ free(c);
+ return retval;
+ }
+ }
+
+ /* add to the end of linked list */
+ for (p = &service->connections; *p; p = &(*p)->next)
+ ;
+ *p = c;
+
+ if (service->max_connections != CONNECTION_LIMIT_UNLIMITED)
+ service->max_connections--;
+
+ return ERROR_OK;
+}
+
+static int remove_connection(struct service *service, struct connection *connection)
+{
+ struct connection **p = &service->connections;
+ struct connection *c;
+
+ /* find connection */
+ while ((c = *p)) {
+ if (c->fd == connection->fd) {
+ service->connection_closed(c);
+ if (service->type == CONNECTION_TCP)
+ close_socket(c->fd);
+ else if (service->type == CONNECTION_PIPE) {
+ /* The service will listen to the pipe again */
+ c->service->fd = c->fd;
+ }
+
+ command_done(c->cmd_ctx);
+
+ /* delete connection */
+ *p = c->next;
+ free(c);
+
+ if (service->max_connections != CONNECTION_LIMIT_UNLIMITED)
+ service->max_connections++;
+
+ break;
+ }
+
+ /* redirect p to next list pointer */
+ p = &(*p)->next;
+ }
+
+ return ERROR_OK;
+}
+
+static void free_service(struct service *c)
+{
+ free(c->name);
+ free(c->port);
+ free(c);
+}
+
+int add_service(char *name,
+ const char *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)
+{
+ struct service *c, **p;
+ struct hostent *hp;
+ int so_reuseaddr_option = 1;
+
+ c = malloc(sizeof(struct service));
+
+ c->name = strdup(name);
+ c->port = strdup(port);
+ c->max_connections = 1; /* Only TCP/IP ports can support more than one connection */
+ 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;
+ long portnumber;
+ if (strcmp(c->port, "pipe") == 0)
+ c->type = CONNECTION_STDINOUT;
+ else {
+ char *end;
+ portnumber = strtol(c->port, &end, 0);
+ if (!*end && (parse_long(c->port, &portnumber) == ERROR_OK)) {
+ c->portnumber = portnumber;
+ c->type = CONNECTION_TCP;
+ } else
+ c->type = CONNECTION_PIPE;
+ }
+
+ if (c->type == CONNECTION_TCP) {
+ c->max_connections = max_connections;
+
+ c->fd = socket(AF_INET, SOCK_STREAM, 0);
+ if (c->fd == -1) {
+ LOG_ERROR("error creating socket: %s", strerror(errno));
+ free_service(c);
+ return ERROR_FAIL;
+ }
+
+ 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;
+
+ if (bindto_name == NULL)
+ c->sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ else {
+ hp = gethostbyname(bindto_name);
+ if (hp == NULL) {
+ LOG_ERROR("couldn't resolve bindto address: %s", bindto_name);
+ close_socket(c->fd);
+ free_service(c);
+ return ERROR_FAIL;
+ }
+ memcpy(&c->sin.sin_addr, hp->h_addr_list[0], hp->h_length);
+ }
+ c->sin.sin_port = htons(c->portnumber);
+
+ if (bind(c->fd, (struct sockaddr *)&c->sin, sizeof(c->sin)) == -1) {
+ LOG_ERROR("couldn't bind %s to socket on port %d: %s", name, c->portnumber, strerror(errno));
+ close_socket(c->fd);
+ free_service(c);
+ return ERROR_FAIL;
+ }
+
+#ifndef _WIN32
+ int segsize = 65536;
+ setsockopt(c->fd, IPPROTO_TCP, TCP_MAXSEG, &segsize, sizeof(int));
+#endif
+ int window_size = 128 * 1024;
+
+ /* These setsockopt()s must happen before the listen() */
+
+ setsockopt(c->fd, SOL_SOCKET, SO_SNDBUF,
+ (char *)&window_size, sizeof(window_size));
+ setsockopt(c->fd, SOL_SOCKET, SO_RCVBUF,
+ (char *)&window_size, sizeof(window_size));
+
+ if (listen(c->fd, 1) == -1) {
+ LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
+ close_socket(c->fd);
+ free_service(c);
+ return ERROR_FAIL;
+ }
+
+ struct sockaddr_in addr_in;
+ addr_in.sin_port = 0;
+ socklen_t addr_in_size = sizeof(addr_in);
+ if (getsockname(c->fd, (struct sockaddr *)&addr_in, &addr_in_size) == 0)
+ LOG_INFO("Listening on port %hu for %s connections",
+ ntohs(addr_in.sin_port), name);
+ } else if (c->type == CONNECTION_STDINOUT) {
+ c->fd = fileno(stdin);
+
+#ifdef _WIN32
+ /* for win32 set stdin/stdout to binary mode */
+ if (_setmode(_fileno(stdout), _O_BINARY) < 0)
+ LOG_WARNING("cannot change stdout mode to binary");
+ if (_setmode(_fileno(stdin), _O_BINARY) < 0)
+ LOG_WARNING("cannot change stdin mode to binary");
+ if (_setmode(_fileno(stderr), _O_BINARY) < 0)
+ LOG_WARNING("cannot change stderr mode to binary");
+#else
+ socket_nonblock(c->fd);
+#endif
+ } else if (c->type == CONNECTION_PIPE) {
+#ifdef _WIN32
+ /* we currenty do not support named pipes under win32
+ * so exit openocd for now */
+ LOG_ERROR("Named pipes currently not supported under this os");
+ free_service(c);
+ return ERROR_FAIL;
+#else
+ /* Pipe we're reading from */
+ c->fd = open(c->port, O_RDONLY | O_NONBLOCK);
+ if (c->fd == -1) {
+ LOG_ERROR("could not open %s", c->port);
+ free_service(c);
+ return ERROR_FAIL;
+ }
+#endif
+ }
+
+ /* add to the end of linked list */
+ for (p = &services; *p; p = &(*p)->next)
+ ;
+ *p = c;
+
+ return ERROR_OK;
+}
+
+static void remove_connections(struct service *service)
+{
+ struct connection *connection;
+
+ connection = service->connections;
+
+ while (connection) {
+ struct connection *tmp;
+
+ tmp = connection->next;
+ remove_connection(service, connection);
+ connection = tmp;
+ }
+}
+
+int remove_service(const char *name, const char *port)
+{
+ struct service *tmp;
+ struct service *prev;
+
+ prev = services;
+
+ for (tmp = services; tmp; prev = tmp, tmp = tmp->next) {
+ if (!strcmp(tmp->name, name) && !strcmp(tmp->port, port)) {
+ remove_connections(tmp);
+
+ if (tmp == services)
+ services = tmp->next;
+ else
+ prev->next = tmp->next;
+
+ if (tmp->type != CONNECTION_STDINOUT)
+ close_socket(tmp->fd);
+
+ free(tmp->priv);
+ free_service(tmp);
+
+ return ERROR_OK;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+static int remove_services(void)
+{
+ struct service *c = services;
+
+ /* loop service */
+ while (c) {
+ struct service *next = c->next;
+
+ remove_connections(c);
+
+ if (c->name)
+ free(c->name);
+
+ if (c->type == CONNECTION_PIPE) {
+ if (c->fd != -1)
+ close(c->fd);
+ }
+ if (c->port)
+ free(c->port);
+
+ 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(struct command_context *command_context)
+{
+ struct service *service;
+
+ bool poll_ok = true;
+
+ /* used in select() */
+ fd_set read_fds;
+ int fd_max;
+
+ /* used in accept() */
+ int retval;
+
+#ifndef _WIN32
+ if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
+ LOG_ERROR("couldn't set SIGPIPE to SIG_IGN");
+#endif
+
+ while (shutdown_openocd == CONTINUE_MAIN_LOOP) {
+ /* monitor sockets for activity */
+ 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) {
+ struct connection *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;
+ }
+ }
+ }
+
+ struct timeval tv;
+ tv.tv_sec = 0;
+ if (poll_ok) {
+ /* we're just polling this iteration, this is faster on embedded
+ * hosts */
+ tv.tv_usec = 0;
+ retval = socket_select(fd_max + 1, &read_fds, NULL, NULL, &tv);
+ } else {
+ /* Every 100ms, can be changed with "poll_period" command */
+ tv.tv_usec = polling_period * 1000;
+ /* Only while we're sleeping we'll let others run */
+ openocd_sleep_prelude();
+ kept_alive();
+ retval = socket_select(fd_max + 1, &read_fds, NULL, NULL, &tv);
+ openocd_sleep_postlude();
+ }
+
+ if (retval == -1) {
+#ifdef _WIN32
+
+ errno = WSAGetLastError();
+
+ if (errno == WSAEINTR)
+ FD_ZERO(&read_fds);
+ else {
+ LOG_ERROR("error during select: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+#else
+
+ if (errno == EINTR)
+ FD_ZERO(&read_fds);
+ else {
+ LOG_ERROR("error during select: %s", strerror(errno));
+ return ERROR_FAIL;
+ }
+#endif
+ }
+
+ if (retval == 0) {
+ /* We only execute these callbacks when there was nothing to do or we timed
+ *out */
+ target_call_timer_callbacks();
+ process_jim_events(command_context);
+
+ FD_ZERO(&read_fds); /* eCos leaves read_fds unchanged in this case! */
+
+ /* We timed out/there was nothing to do, timeout rather than poll next time
+ **/
+ poll_ok = false;
+ } else {
+ /* There was something to do, next time we'll just poll */
+ poll_ok = true;
+ }
+
+ /* This is a simple back-off algorithm where we immediately
+ * re-poll if we did something this time around.
+ *
+ * This greatly improves performance of DCC.
+ */
+ poll_ok = poll_ok || target_got_message();
+
+ 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 {
+ if (service->type == CONNECTION_TCP) {
+ struct sockaddr_in sin;
+ socklen_t address_size = sizeof(sin);
+ int tmp_fd;
+ tmp_fd = accept(service->fd,
+ (struct sockaddr *)&service->sin,
+ &address_size);
+ close_socket(tmp_fd);
+ }
+ LOG_INFO(
+ "rejected '%s' connection, no more connections allowed",
+ service->name);
+ }
+ }
+
+ /* handle activity on connections */
+ if (service->connections) {
+ struct connection *c;
+
+ for (c = service->connections; c; ) {
+ if ((FD_ISSET(c->fd, &read_fds)) || c->input_pending) {
+ retval = service->input(c);
+ if (retval != ERROR_OK) {
+ struct connection *next = c->next;
+ if (service->type == CONNECTION_PIPE ||
+ service->type == CONNECTION_STDINOUT) {
+ /* if connection uses a pipe then
+ * shutdown openocd on error */
+ shutdown_openocd = SHUTDOWN_REQUESTED;
+ }
+ remove_connection(service, c);
+ LOG_INFO("dropped '%s' connection",
+ service->name);
+ c = next;
+ continue;
+ }
+ }
+ c = c->next;
+ }
+ }
+ }
+
+#ifdef _WIN32
+ MSG msg;
+ while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
+ if (msg.message == WM_QUIT)
+ shutdown_openocd = SHUTDOWN_WITH_SIGNAL_CODE;
+ }
+#endif
+ }
+
+ /* when quit for signal or CTRL-C, run (eventually user implemented) "shutdown" */
+ if (shutdown_openocd == SHUTDOWN_WITH_SIGNAL_CODE)
+ command_run_line(command_context, "shutdown");
+
+ return shutdown_openocd == SHUTDOWN_WITH_ERROR_CODE ? ERROR_FAIL : ERROR_OK;
+}
+
+void sig_handler(int sig)
+{
+ /* store only first signal that hits us */
+ if (shutdown_openocd == CONTINUE_MAIN_LOOP) {
+ shutdown_openocd = SHUTDOWN_WITH_SIGNAL_CODE;
+ last_signal = sig;
+ LOG_DEBUG("Terminating on Signal %d", sig);
+ } else
+ LOG_DEBUG("Ignored extra Signal %d", sig);
+}
+
+
+#ifdef _WIN32
+BOOL WINAPI ControlHandler(DWORD dwCtrlType)
+{
+ shutdown_openocd = SHUTDOWN_WITH_SIGNAL_CODE;
+ return TRUE;
+}
+#else
+static void sigkey_handler(int sig)
+{
+ /* ignore keystroke generated signals if not in foreground process group */
+
+ if (tcgetpgrp(STDIN_FILENO) > 0)
+ sig_handler(sig);
+ else
+ LOG_DEBUG("Ignored Signal %d", sig);
+}
+#endif
+
+
+int server_preinit(void)
+{
+ /* this currently only calls WSAStartup on native win32 systems
+ * before any socket operations are performed.
+ * This is an issue if you call init in your config script */
+
+#ifdef _WIN32
+ WORD wVersionRequested;
+ WSADATA wsaData;
+
+ wVersionRequested = MAKEWORD(2, 2);
+
+ if (WSAStartup(wVersionRequested, &wsaData) != 0) {
+ LOG_ERROR("Failed to Open Winsock");
+ return ERROR_FAIL;
+ }
+
+ /* register ctrl-c handler */
+ SetConsoleCtrlHandler(ControlHandler, TRUE);
+
+ signal(SIGBREAK, sig_handler);
+ signal(SIGINT, sig_handler);
+#else
+ signal(SIGHUP, sig_handler);
+ signal(SIGPIPE, sig_handler);
+ signal(SIGQUIT, sigkey_handler);
+ signal(SIGINT, sigkey_handler);
+#endif
+ signal(SIGTERM, sig_handler);
+ signal(SIGABRT, sig_handler);
+
+ return ERROR_OK;
+}
+
+int server_init(struct command_context *cmd_ctx)
+{
+ int ret = tcl_init();
+
+ if (ret != ERROR_OK)
+ return ret;
+
+ ret = telnet_init("Open On-Chip Debugger");
+
+ if (ret != ERROR_OK) {
+ remove_services();
+ return ret;
+ }
+
+ return ERROR_OK;
+}
+
+int server_quit(void)
+{
+ remove_services();
+ target_quit();
+
+#ifdef _WIN32
+ WSACleanup();
+ SetConsoleCtrlHandler(ControlHandler, FALSE);
+
+ return ERROR_OK;
+#endif
+
+ /* return signal number so we can kill ourselves */
+ return last_signal;
+}
+
+void server_free(void)
+{
+ tcl_service_free();
+ telnet_service_free();
+ jsp_service_free();
+}
+
+void exit_on_signal(int sig)
+{
+#ifndef _WIN32
+ /* bring back default system handler and kill yourself */
+ signal(sig, SIG_DFL);
+ kill(getpid(), sig);
+#endif
+}
+
+int connection_write(struct connection *connection, const void *data, int len)
+{
+ if (len == 0) {
+ /* successful no-op. Sockets and pipes behave differently here... */
+ return 0;
+ }
+ if (connection->service->type == CONNECTION_TCP)
+ return write_socket(connection->fd_out, data, len);
+ else
+ return write(connection->fd_out, data, len);
+}
+
+int connection_read(struct connection *connection, void *data, int len)
+{
+ if (connection->service->type == CONNECTION_TCP)
+ return read_socket(connection->fd, data, len);
+ else
+ return read(connection->fd, data, len);
+}
+
+/* tell the server we want to shut down */
+COMMAND_HANDLER(handle_shutdown_command)
+{
+ LOG_USER("shutdown command invoked");
+
+ shutdown_openocd = SHUTDOWN_REQUESTED;
+
+ if (CMD_ARGC == 1) {
+ if (!strcmp(CMD_ARGV[0], "error")) {
+ shutdown_openocd = SHUTDOWN_WITH_ERROR_CODE;
+ return ERROR_FAIL;
+ }
+ }
+
+ return ERROR_COMMAND_CLOSE_CONNECTION;
+}
+
+COMMAND_HANDLER(handle_poll_period_command)
+{
+ if (CMD_ARGC == 0)
+ LOG_WARNING("You need to set a period value");
+ else
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], polling_period);
+
+ LOG_INFO("set servers polling period to %ums", polling_period);
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_bindto_command)
+{
+ switch (CMD_ARGC) {
+ case 0:
+ command_print(CMD_CTX, "bindto name: %s", bindto_name);
+ break;
+ case 1:
+ free(bindto_name);
+ bindto_name = strdup(CMD_ARGV[0]);
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ return ERROR_OK;
+}
+
+static const struct command_registration server_command_handlers[] = {
+ {
+ .name = "shutdown",
+ .handler = &handle_shutdown_command,
+ .mode = COMMAND_ANY,
+ .usage = "",
+ .help = "shut the server down",
+ },
+ {
+ .name = "poll_period",
+ .handler = &handle_poll_period_command,
+ .mode = COMMAND_ANY,
+ .usage = "",
+ .help = "set the servers polling period",
+ },
+ {
+ .name = "bindto",
+ .handler = &handle_bindto_command,
+ .mode = COMMAND_ANY,
+ .usage = "[name]",
+ .help = "Specify address by name on which to listen for "
+ "incoming TCP/IP connections",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+int server_register_commands(struct command_context *cmd_ctx)
+{
+ int retval = telnet_register_commands(cmd_ctx);
+ if (ERROR_OK != retval)
+ return retval;
+
+ retval = tcl_register_commands(cmd_ctx);
+ if (ERROR_OK != retval)
+ return retval;
+
+ retval = jsp_register_commands(cmd_ctx);
+ if (ERROR_OK != retval)
+ return retval;
+
+ return register_commands(cmd_ctx, NULL, server_command_handlers);
+}
+
+COMMAND_HELPER(server_port_command, unsigned short *out)
+{
+ switch (CMD_ARGC) {
+ case 0:
+ command_print(CMD_CTX, "%d", *out);
+ break;
+ case 1:
+ {
+ uint16_t port;
+ COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0], port);
+ *out = port;
+ break;
+ }
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ return ERROR_OK;
+}
+
+COMMAND_HELPER(server_pipe_command, char **out)
+{
+ switch (CMD_ARGC) {
+ case 0:
+ command_print(CMD_CTX, "%s", *out);
+ break;
+ case 1:
+ {
+ if (CMD_CTX->mode == COMMAND_EXEC) {
+ LOG_WARNING("unable to change server port after init");
+ return ERROR_COMMAND_ARGUMENT_INVALID;
+ }
+ free(*out);
+ *out = strdup(CMD_ARGV[0]);
+ break;
+ }
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ return ERROR_OK;
+}
Code Review / openocd.git / blobdiff