X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=command.c;h=ad3f504103b4a773b392c25afe07be28e36dff2c;hp=e94fb8efa88748566e7904f81dd0a9c001a1cdf1;hb=60216e4058f4ecc24467df577e51cb2bd66508b0;hpb=c29a66c884d0e7f7329a3be2931490e47f0cd9ff diff --git a/command.c b/command.c index e94fb8ef..ad3f5041 100644 --- a/command.c +++ b/command.c @@ -18,7 +18,6 @@ /** \file command.c does client authentication and executes server commands */ -#include /* mallinfo */ #include /* gettimeofday */ #include "crypt.h" #include "server.cmdline.h" @@ -32,20 +31,15 @@ #include "net.h" #include "daemon.h" #include "string.h" +#include "fd.h" -void (*crypt_function_recv)(unsigned long len, const unsigned char *indata, - unsigned char *outdata) = NULL; -void (*crypt_function_send)(unsigned long len, const unsigned char *indata, - unsigned char *outdata) = NULL; static RC4_KEY rc4_recv_key; static RC4_KEY rc4_send_key; static unsigned char rc4_buf[2 * RC4_KEY_LEN]; extern const char *status_item_list[NUM_STAT_ITEMS]; extern struct misc_meta_data *mmd; -extern struct gengetopt_args_info conf; -extern struct audio_file_selector dblist[]; -extern struct audio_format afl[]; +extern struct audio_file_selector selectors[]; extern struct sender senders[]; extern char *user_list; struct sockaddr_in *in_addr; @@ -309,7 +303,7 @@ static struct server_command cmd_struct[] = { } }; -static void dummy(__unused int s) +static void dummy(__a_unused int s) {} static void mmd_dup(struct misc_meta_data *new_mmd) @@ -426,7 +420,7 @@ static char *get_status(struct misc_meta_data *nmmd) status_item_list[SI_STATUS_BAR], bar ? bar : "(none)", status_item_list[SI_STATUS], status, status_item_list[SI_STATUS_FLAGS], flags, - status_item_list[SI_SELECTOR], dblist[nmmd->selector_num].name, + status_item_list[SI_SELECTOR], selectors[nmmd->selector_num].name, status_item_list[SI_OFFSET], offset, status_item_list[SI_FORMAT], audio_format_name(nmmd->audio_format), @@ -434,9 +428,12 @@ static char *get_status(struct misc_meta_data *nmmd) nmmd->audio_file_info, status_item_list[SI_UPTIME], ut, - status_item_list[SI_STREAM_START], nmmd->stream_start.tv_sec, - nmmd->stream_start.tv_usec, - status_item_list[SI_CURRENT_TIME], now.tv_sec, now.tv_usec + status_item_list[SI_STREAM_START], + (long unsigned)nmmd->stream_start.tv_sec, + (long unsigned)nmmd->stream_start.tv_usec, + status_item_list[SI_CURRENT_TIME], + (long unsigned)now.tv_sec, + (long unsigned)now.tv_usec ); free(bar); @@ -453,22 +450,21 @@ static int check_sender_args(int argc, char **argv, struct sender_command_data * const char *subcmds[] = {"add", "delete", "allow", "deny", "on", "off", NULL}; scd->sender_num = -1; - if (argc < 0) + if (argc < 2) return -E_COMMAND_SYNTAX; for (i = 0; senders[i].name; i++) - if (!strcmp(senders[i].name, argv[0])) + if (!strcmp(senders[i].name, argv[1])) break; -// PARA_DEBUG_LOG("%d:%s\n", argc, argv[0]); + PARA_DEBUG_LOG("%d:%s\n", argc, argv[1]); if (!senders[i].name) return -E_COMMAND_SYNTAX; scd->sender_num = i; for (i = 0; subcmds[i]; i++) - if (!strcmp(subcmds[i], argv[1])) + if (!strcmp(subcmds[i], argv[2])) break; if (!subcmds[i]) return -E_COMMAND_SYNTAX; scd->cmd_num = i; -// scd->self = *in_addr; mmd_lock(); if (!senders[scd->sender_num].client_cmds[scd->cmd_num]) { mmd_unlock(); @@ -478,31 +474,31 @@ static int check_sender_args(int argc, char **argv, struct sender_command_data * switch (scd->cmd_num) { case SENDER_ON: case SENDER_OFF: - if (argc != 1) + if (argc != 3) return -E_COMMAND_SYNTAX; break; case SENDER_DENY: case SENDER_ALLOW: - if (argc != 2 && argc != 3) + if (argc != 4 && argc != 5) return -E_COMMAND_SYNTAX; - if (!inet_aton(argv[2], &scd->addr)) + if (!inet_aton(argv[3], &scd->addr)) return -E_COMMAND_SYNTAX; scd->netmask = 32; - if (argc == 3) { - scd->netmask = atoi(argv[3]); + if (argc == 5) { + scd->netmask = atoi(argv[4]); if (scd->netmask < 0 || scd->netmask > 32) return -E_COMMAND_SYNTAX; } break; case SENDER_ADD: case SENDER_DELETE: - if (argc != 2 && argc != 3) + if (argc != 4 && argc != 5) return -E_COMMAND_SYNTAX; - if (!inet_aton(argv[2], &scd->addr)) + if (!inet_aton(argv[3], &scd->addr)) return -E_COMMAND_SYNTAX; scd->port = -1; - if (argc == 3) { - scd->port = atoi(argv[3]); + if (argc == 5) { + scd->port = atoi(argv[4]); if (scd->port < 0 || scd->port > 65535) return -E_COMMAND_SYNTAX; } @@ -518,7 +514,7 @@ static int com_sender(int fd, int argc, char **argv) int i, ret; struct sender_command_data scd; - if (!argc) { + if (argc < 2) { char *msg = NULL; for (i = 0; senders[i].name; i++) { char *tmp = make_message("%s%s\n", @@ -530,7 +526,7 @@ static int com_sender(int fd, int argc, char **argv) free(msg); return ret; } - ret = check_sender_args(argc - 1, argv + 1, &scd); + ret = check_sender_args(argc, argv, &scd); if (ret < 0) { char *msg; if (scd.sender_num < 0) @@ -555,19 +551,18 @@ static int com_sender(int fd, int argc, char **argv) } /* server info */ -static int com_si(int fd, int argc, __unused char **argv) +static int com_si(int fd, int argc, __a_unused char **argv) { int i, ret; char *ut; - char *selectors = NULL, *sender_info = NULL, *sender_list = NULL; - struct mallinfo mi = mallinfo(); + char *selector_string = NULL, *sender_info = NULL, *sender_list = NULL; - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); - for (i = 0; dblist[i].name; i++) { - selectors = para_strcat(selectors, dblist[i].name); - selectors = para_strcat(selectors, " "); + for (i = 0; selectors[i].name; i++) { + selector_string = para_strcat(selector_string, selectors[i].name); + selector_string = para_strcat(selector_string, " "); } for (i = 0; senders[i].name; i++) { char *info = senders[i].info(); @@ -579,7 +574,6 @@ static int com_si(int fd, int argc, __unused char **argv) ut = uptime_str(); ret = send_va_buffer(fd, "up: %s\nplayed: %u\n" "pid: %d\n" - "mallinfo: %d\n" "connections (active/accepted/total): %u/%u/%u\n" "current loglevel: %i\n" "supported audio file selectors: %s\n" @@ -588,30 +582,30 @@ static int com_si(int fd, int argc, __unused char **argv) "%s", ut, mmd->num_played, getppid(), - mi.arena / 1024, mmd->active_connections, mmd->num_commands, mmd->num_connects, conf.loglevel_arg, - selectors, - SUPPORTED_AUDIO_FORMATS, + selector_string, + supported_audio_formats(), sender_list, sender_info ); mmd_unlock(); free(ut); - free(selectors); + free(selector_string); free(sender_list); free(sender_info); return ret; } /* version */ -static int com_version(int socket_fd, int argc, __unused char **argv) +static int com_version(int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; - return send_buffer(socket_fd, "para_server-" VERSION ", \"" CODENAME "\"\n" + return send_buffer(socket_fd, "para_server-" PACKAGE_VERSION ", \"" + CODENAME "\"\n" COPYRIGHT "\n" "built: " BUILD_DATE "\n" SYSTEM ", " CC_VERSION "\n" @@ -624,7 +618,7 @@ static int com_sc(int socket_fd, int argc, char **argv) char *name = NULL; int ret, old = 0, count = -1; /* print af change forever */ - if (argc) + if (argc > 1) count = atoi(argv[1]); repeat: mmd_lock(); @@ -639,7 +633,7 @@ repeat: name = NULL; if (ret < 0) return ret; - if (argc && !--count) + if (argc > 1 && !--count) return 1; } usleep(500000); @@ -654,7 +648,7 @@ static int com_sb(int socket_fd, int argc, char **argv) * times. Negative value means: print * forever */ - if (argc) + if (argc > 1) nr = atoi(argv[1]); while (nr) { mmd_lock(); @@ -684,7 +678,7 @@ static int com_stat(int socket_fd, int argc, char **argv) signal(SIGUSR1, dummy); - if (argc) + if (argc > 1) num = atoi(argv[1]); for (;;) { @@ -697,7 +691,9 @@ static int com_stat(int socket_fd, int argc, char **argv) ret = 1; if (num == 1) goto out; - usleep(500000 * 100); + sleep(50); + if (getppid() == 1) + return -E_SERVER_CRASH; } out: return ret; @@ -720,7 +716,7 @@ static int send_description(int fd, struct server_command *cmd, const char *hand return 1; } -/* always returns string that must be freed by the caller in handeler */ +/* always returns string that must be freed by the caller in handler */ static struct server_command *get_cmd_ptr(char *name, char **handler) { struct server_command *cmd = cmd_struct; @@ -735,8 +731,8 @@ static struct server_command *get_cmd_ptr(char *name, char **handler) mmd_lock(); if (handler) *handler = make_message("the %s selector", - dblist[mmd->selector_num].name); - cmd = dblist[mmd->selector_num].cmd_list; + selectors[mmd->selector_num].name); + cmd = selectors[mmd->selector_num].cmd_list; mmd_unlock(); for (; cmd->name; cmd++) if (!strcmp(cmd->name, name)) @@ -751,13 +747,13 @@ static int com_help(int fd, int argc, char **argv) char *perms, *handler; int ret; - if (!argc) { + if (argc < 2) { /* no argument given, print list of commands */ if ((ret = send_description(fd, cmd_struct, "server", 0)) < 0) return ret; mmd_lock(); - handler = para_strdup(dblist[mmd->selector_num].name); - cmd = dblist[mmd->selector_num].cmd_list; + handler = para_strdup(selectors[mmd->selector_num].name); + cmd = selectors[mmd->selector_num].cmd_list; mmd_unlock(); ret = send_description(fd, cmd, handler, 0); free(handler); @@ -792,26 +788,26 @@ static int com_help(int fd, int argc, char **argv) } /* hup */ -static int com_hup(__unused int socket_fd, int argc, __unused char **argv) +static int com_hup(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; kill(getppid(), SIGHUP); return 1; } /* term */ -static int com_term(__unused int socket_fd, int argc, __unused char **argv) +static int com_term(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; kill(getppid(), SIGTERM); return 1; } -static int com_play(__unused int socket_fd, int argc, __unused char **argv) +static int com_play(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); mmd->new_afs_status_flags |= AFS_PLAYING; @@ -822,9 +818,9 @@ static int com_play(__unused int socket_fd, int argc, __unused char **argv) } /* stop */ -static int com_stop(__unused int socket_fd, int argc, __unused char **argv) +static int com_stop(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); mmd->new_afs_status_flags &= ~AFS_PLAYING; @@ -835,9 +831,9 @@ static int com_stop(__unused int socket_fd, int argc, __unused char **argv) } /* pause */ -static int com_pause(__unused int socket_fd, int argc, __unused char **argv) +static int com_pause(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); if (!afs_paused()) @@ -852,20 +848,20 @@ static int com_chs(int fd, int argc, char **argv) { int i, ret; - if (!argc) { + if (argc == 1) { char *selector; mmd_lock(); - selector = para_strdup(dblist[mmd->selector_num].name); + selector = para_strdup(selectors[mmd->selector_num].name); mmd_unlock(); ret = send_va_buffer(fd, "%s\n", selector); free(selector); return ret; } - for (i = 0; dblist[i].name; i++) { - if (strcmp(dblist[i].name, argv[1])) + for (i = 0; selectors[i].name; i++) { + if (strcmp(selectors[i].name, argv[1])) continue; mmd_lock(); - mmd->dbt_change = i; + mmd->selector_change = i; mmd->events++; mmd_unlock(); return 1; @@ -874,20 +870,21 @@ static int com_chs(int fd, int argc, char **argv) } /* next */ -static int com_next(__unused int socket_fd, int argc, __unused char **argv) +static int com_next(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); + mmd->events++; mmd->new_afs_status_flags |= AFS_NEXT; mmd_unlock(); return 1; } /* nomore */ -static int com_nomore(__unused int socket_fd, int argc, __unused char **argv) +static int com_nomore(__a_unused int socket_fd, int argc, __a_unused char **argv) { - if (argc) + if (argc != 1) return -E_COMMAND_SYNTAX; mmd_lock(); if (afs_playing() || afs_paused()) @@ -897,14 +894,14 @@ static int com_nomore(__unused int socket_fd, int argc, __unused char **argv) } /* ff */ -static int com_ff(__unused int socket_fd, int argc, char **argv) +static int com_ff(__a_unused int socket_fd, int argc, char **argv) { long promille; int ret, backwards = 0; unsigned i; char c; - if (!argc) + if (argc != 2) return -E_COMMAND_SYNTAX; if (!(ret = sscanf(argv[1], "%u%c", &i, &c))) return -E_COMMAND_SYNTAX; @@ -936,12 +933,12 @@ out: } /* jmp */ -static int com_jmp(__unused int socket_fd, int argc, char **argv) +static int com_jmp(__a_unused int socket_fd, int argc, char **argv) { long unsigned int i; int ret; - if (!argc) + if (argc != 2) return -E_COMMAND_SYNTAX; if (sscanf(argv[1], "%lu", &i) <= 0) return -E_COMMAND_SYNTAX; @@ -1015,51 +1012,48 @@ static int get_user(struct user *user) { char line[MAXLINE]; /* keyword, user, key, perms */ char w[MAXLINE], n[MAXLINE], k[MAXLINE], p[MAXLINE], tmp[4][MAXLINE]; - int num; + int num, ret; file_ptr = open_user_list(user_list); if (!file_ptr) return -E_USERLIST; - while (fgets(line, MAXLINE, file_ptr)) { -// PARA_DEBUG_LOG("%s: Read line (%i bytes) " -// "from config file\n", __func__, strlen(line)); + for (;;) { + ret = para_fgets(line, MAXLINE, file_ptr); + if (ret < 0) + PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret)); + if (ret <= 0) + break; if (sscanf(line,"%200s %200s %200s %200s", w, n, k, p) < 3) continue; - if (!strcmp(w, "user") && !strcmp(user->name, n)) { - PARA_DEBUG_LOG("found entry for %s\n", n); - strcpy(user->name, n); - strcpy(user->pubkey_file, k); - user->perms = 0; - char_ptr = p; - num = sscanf(char_ptr, "%200[A-Z_],%200[A-Z_],%200[A-Z_],%200[A-Z_]", - tmp[0], tmp[1], tmp[2], tmp[3]); - PARA_DEBUG_LOG("found %i perm entries\n", - num); - user->perms = 0; - while (num > 0) { - num--; - //PARA_DEBUG_LOG("%s: tmp[%i]=%s\n", __func__, - // num, tmp[num]); - if (!strcmp(tmp[num], "AFS_READ")) - user->perms = - user->perms | AFS_READ; - else if (!strcmp(tmp[num], "AFS_WRITE")) - user->perms = - user->perms | AFS_WRITE; - else if (!strcmp(tmp[num], "DB_READ")) - user->perms = user->perms | DB_READ; - else if (!strcmp(tmp[num], "DB_WRITE")) - user->perms = user->perms | DB_WRITE; - else /* unknown permission */ - PARA_WARNING_LOG("unknown permission:" - "%s\n", tmp[num]); - } - fclose(file_ptr); - return 1; + if (strcmp(w, "user") || strcmp(user->name, n)) + continue; + PARA_DEBUG_LOG("found entry for %s\n", n); + strcpy(user->name, n); + strcpy(user->pubkey_file, k); + user->perms = 0; + char_ptr = p; + num = sscanf(char_ptr, "%200[A-Z_],%200[A-Z_],%200[A-Z_],%200[A-Z_]", + tmp[0], tmp[1], tmp[2], tmp[3]); + PARA_DEBUG_LOG("found %i perm entries\n", num); + user->perms = 0; + while (num > 0) { + num--; + if (!strcmp(tmp[num], "AFS_READ")) + user->perms = user->perms | AFS_READ; + else if (!strcmp(tmp[num], "AFS_WRITE")) + user->perms = user->perms | AFS_WRITE; + else if (!strcmp(tmp[num], "DB_READ")) + user->perms = user->perms | DB_READ; + else if (!strcmp(tmp[num], "DB_WRITE")) + user->perms = user->perms | DB_WRITE; + else /* unknown permission */ + PARA_WARNING_LOG("unknown permission: %s\n", + tmp[num]); } + break; } fclose(file_ptr); - return 0; + return ret; } static void init_rc4_keys(void) @@ -1075,12 +1069,14 @@ static void init_rc4_keys(void) RC4_set_key(&rc4_send_key, RC4_KEY_LEN, rc4_buf + RC4_KEY_LEN); } -static void rc4_recv(unsigned long len, const unsigned char *indata, unsigned char *outdata) +static void rc4_recv(unsigned long len, const unsigned char *indata, + unsigned char *outdata, __a_unused void *private_data) { RC4(&rc4_recv_key, len, indata, outdata); } -static void rc4_send(unsigned long len, const unsigned char *indata, unsigned char *outdata) +static void rc4_send(unsigned long len, const unsigned char *indata, + unsigned char *outdata, __a_unused void *private_data) { RC4(&rc4_send_key, len, indata, outdata); } @@ -1105,7 +1101,8 @@ int handle_connect(int fd, struct sockaddr_in *addr) in_addr = addr; challenge_nr = random(); /* send Welcome message */ - ret = send_va_buffer(fd, "This is para_server, version " VERSION ".\n" ); + ret = send_va_buffer(fd, "This is para_server, version " + PACKAGE_VERSION ".\n" ); if (ret < 0) goto err_out; /* recv auth request line */ @@ -1173,11 +1170,8 @@ int handle_connect(int fd, struct sockaddr_in *addr) ret = send_bin_buffer(fd, buf, numbytes); if (ret < 0) goto err_out; - if (use_rc4) { - crypt_function_recv = rc4_recv; - crypt_function_send = rc4_send; - PARA_INFO_LOG("%s", "rc4 encrytion activated\n"); - } + if (use_rc4) + enable_crypt(fd, rc4_recv, rc4_send, NULL); /* read command */ while ((numbytes = recv_buffer(fd, buf, sizeof(buf))) > 0) { // PARA_INFO_LOG("recvd: %s (%d)\n", buf, numbytes); @@ -1203,8 +1197,7 @@ int handle_connect(int fd, struct sockaddr_in *addr) goto err_out; /* valid command and sufficient perms */ alarm(0); - argc = split_args(command, &argv, '\n'); - argv[0] = cmd->name; + argc = split_args(command, &argv, "\n"); mmd_lock(); mmd->num_commands++; mmd_unlock();