X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Ftincctl.c;h=7e08629e76fed5da76ec6ac93950588793149be4;hb=b1f8c65a2cfa307d9b8ed8cc3c8d4819f605e4f6;hp=5d65f3aa51d19812fde231f317c7a56472793ffe;hpb=8c6131deda546452386f3703af968ee664cadfbd;p=tinc diff --git a/src/tincctl.c b/src/tincctl.c index 5d65f3aa..7e08629e 100644 --- a/src/tincctl.c +++ b/src/tincctl.c @@ -30,8 +30,9 @@ #include -#include "protocol.h" #include "xalloc.h" +#include "protocol.h" +#include "control_common.h" /* The name this program was run with. */ char *program_name = NULL; @@ -88,6 +89,10 @@ static void usage(bool status) { " subnets - all known subnets in the VPN\n" " connections - all meta connections with ourself\n" " graph - graph of the VPN in dotty format\n" + " purge Purge unreachable nodes\n" + " debug N Set debug level\n" + " retry Retry all outgoing connections\n" + " reload Partial reload of configuration\n" "\n")); printf(_("Report bugs to tinc@tinc-vpn.org.\n")); } @@ -327,9 +332,118 @@ static void make_names(void) { } } +static int fullread(int fd, void *data, size_t datalen) { + int rv, len = 0; + + while(len < datalen) { + rv = read(fd, data + len, datalen - len); + if(rv == -1 && errno == EINTR) + continue; + else if(rv == -1) + return rv; + else if(rv == 0) { + errno = ENODATA; + return -1; + } + len += rv; + } + return 0; +} + +/* + Send a request (raw) +*/ +static int send_ctl_request(int fd, enum request_type type, + void const *outdata, size_t outdatalen, + int *res_errno_p, void **indata_p, + size_t *indatalen_p) { + tinc_ctl_request_t req; + int rv; + struct iovec vector[2] = { + {&req, sizeof(req)}, + {(void*) outdata, outdatalen} + }; + void *indata; + + if(res_errno_p == NULL) + return -1; + + memset(&req, 0, sizeof req); + req.length = sizeof req + outdatalen; + req.type = type; + req.res_errno = 0; + + while((rv = writev(fd, vector, 2)) == -1 && errno == EINTR) ; + if(rv != req.length) + return -1; + + if(fullread(fd, &req, sizeof req) == -1) + return -1; + + if(req.length < sizeof req) { + errno = EINVAL; + return -1; + } + + if(req.length > sizeof req) { + if(indata_p == NULL) { + errno = EINVAL; + return -1; + } + + indata = xmalloc(req.length - sizeof req); + + if(fullread(fd, indata, req.length - sizeof req) == -1) { + free(indata); + return -1; + } + + *indata_p = indata; + if(indatalen_p != NULL) + *indatalen_p = req.length - sizeof req; + } + + *res_errno_p = req.res_errno; + + return 0; +} + +/* + Send a request (with printfs) +*/ +static int send_ctl_request_cooked(int fd, enum request_type type, + void const *outdata, size_t outdatalen) +{ + int res_errno = -1; + char *buf = NULL; + size_t buflen = 0; + + if(send_ctl_request(fd, type, outdata, outdatalen, &res_errno, + (void**) &buf, &buflen)) { + fprintf(stderr, _("Error sending request: %s\n"), strerror(errno)); + return -1; + } + + if(buf != NULL) { + printf("%*s", buflen, buf); + free(buf); + } + + if(res_errno != 0) { + fprintf(stderr, _("Server reported error: %s\n"), strerror(res_errno)); + return -1; + } + + return 0; +} + int main(int argc, char *argv[], char *envp[]) { - int fd; struct sockaddr_un addr; + int fd; + int len; + tinc_ctl_greeting_t greeting; + tinc_ctl_request_t req; + program_name = argv[0]; setlocale(LC_ALL, ""); @@ -399,6 +513,18 @@ int main(int argc, char *argv[], char *envp[]) { return 1; } + if(fullread(fd, &greeting, sizeof greeting) == -1) { + fprintf(stderr, _("Cannot read greeting from control socket: %s\n"), + strerror(errno)); + return 1; + } + + if(greeting.version != TINC_CTL_VERSION_CURRENT) { + fprintf(stderr, _("Version mismatch: server %d, client %d\n"), + greeting.version, TINC_CTL_VERSION_CURRENT); + return 1; + } + struct ucred cred; socklen_t credlen = sizeof cred; @@ -413,18 +539,71 @@ int main(int argc, char *argv[], char *envp[]) { } if(!strcasecmp(argv[optind], "stop")) { - write(fd, "stop\n", 5); - return 0; + return send_ctl_request_cooked(fd, REQ_STOP, NULL, 0) != -1; } if(!strcasecmp(argv[optind], "reload")) { - write(fd, "reload\n", 7); - return 0; + return send_ctl_request_cooked(fd, REQ_RELOAD, NULL, 0) != -1; } if(!strcasecmp(argv[optind], "restart")) { - write(fd, "restart\n", 8); - return 0; + return send_ctl_request_cooked(fd, REQ_RESTART, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind], "dump")) { + if(argc < optind + 2) { + fprintf(stderr, _("Not enough arguments.\n")); + usage(true); + return 1; + } + + if(!strcasecmp(argv[optind+1], "nodes")) { + return send_ctl_request_cooked(fd, REQ_DUMP_NODES, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind+1], "edges")) { + return send_ctl_request_cooked(fd, REQ_DUMP_EDGES, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind+1], "subnets")) { + return send_ctl_request_cooked(fd, REQ_DUMP_SUBNETS, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind+1], "connections")) { + return send_ctl_request_cooked(fd, REQ_DUMP_CONNECTIONS, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind+1], "graph")) { + return send_ctl_request_cooked(fd, REQ_DUMP_GRAPH, NULL, 0) != -1; + } + + fprintf(stderr, _("Unknown dump type '%s'.\n"), argv[optind+1]); + usage(true); + return 1; + } + + if(!strcasecmp(argv[optind], "purge")) { + return send_ctl_request_cooked(fd, REQ_PURGE, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind], "debug")) { + int debuglevel; + + if(argc != optind + 2) { + fprintf(stderr, "Invalid arguments.\n"); + return 1; + } + debuglevel = atoi(argv[optind+1]); + return send_ctl_request_cooked(fd, REQ_SET_DEBUG, &debuglevel, + sizeof(debuglevel)) != -1; + } + + if(!strcasecmp(argv[optind], "retry")) { + return send_ctl_request_cooked(fd, REQ_RETRY, NULL, 0) != -1; + } + + if(!strcasecmp(argv[optind], "reload")) { + return send_ctl_request_cooked(fd, REQ_RELOAD, NULL, 0) != -1; } fprintf(stderr, _("Unknown command `%s'.\n"), argv[optind]);