struct ul_opts *
rtpp_command_ul_opts_parse(struct cfg *cf, struct rtpp_command *cmd)
{
int len, tpf, n, i;
char c;
char *cp, *t;
const char *errmsg;
struct sockaddr_storage tia;
struct ul_opts *ulop;
ulop = rtpp_zmalloc(sizeof(struct ul_opts));
if (ulop == NULL) {
reply_error(cmd, ECODE_NOMEM_1);
goto err_undo_0;
}
ul_opts_init(cf, ulop);
if (cmd->cca.op == UPDATE && cmd->argc > 6) {
if (cmd->argc == 8) {
ulop->notify_socket = cmd->argv[6];
ulop->notify_tag = cmd->argv[7];
} else {
ulop->notify_socket = cmd->argv[5];
ulop->notify_tag = cmd->argv[6];
cmd->cca.to_tag = NULL;
}
len = url_unquote((uint8_t *)ulop->notify_tag, strlen(ulop->notify_tag));
if (len == -1) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR,
"command syntax error - invalid URL encoding");
reply_error(cmd, ECODE_PARSE_10);
goto err_undo_1;
}
ulop->notify_tag[len] = '\0';
}
ulop->addr = cmd->argv[2];
ulop->port = cmd->argv[3];
/* Process additional command modifiers */
for (cp = cmd->argv[0] + 1; *cp != '\0'; cp++) {
switch (*cp) {
case 'a':
case 'A':
ulop->asymmetric = 1;
break;
case 'e':
case 'E':
if (ulop->lidx < 0 || cf->stable->bindaddr[1] == NULL) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "command syntax error");
reply_error(cmd, ECODE_PARSE_11);
goto err_undo_1;
}
ulop->lia[ulop->lidx] = cf->stable->bindaddr[1];
ulop->lidx--;
break;
case 'i':
case 'I':
if (ulop->lidx < 0 || cf->stable->bindaddr[1] == NULL) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "command syntax error");
reply_error(cmd, ECODE_PARSE_12);
goto err_undo_1;
}
ulop->lia[ulop->lidx] = cf->stable->bindaddr[0];
ulop->lidx--;
break;
case '6':
ulop->pf = AF_INET6;
break;
case 's':
case 'S':
ulop->asymmetric = 0;
break;
case 'w':
case 'W':
ulop->weak = 1;
break;
case 'z':
case 'Z':
ulop->requested_ptime = strtol(cp + 1, &cp, 10);
if (ulop->requested_ptime <= 0) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "command syntax error");
reply_error(cmd, ECODE_PARSE_13);
goto err_undo_1;
}
cp--;
break;
case 'c':
case 'C':
cp += 1;
for (t = cp; *cp != '\0'; cp++) {
if (!isdigit(*cp) && *cp != ',')
break;
}
if (t == cp) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "command syntax error");
reply_error(cmd, ECODE_PARSE_14);
goto err_undo_1;
}
ulop->codecs = malloc(cp - t + 1);
if (ulop->codecs == NULL) {
reply_error(cmd, ECODE_NOMEM_2);
goto err_undo_1;
}
memcpy(ulop->codecs, t, cp - t);
ulop->codecs[cp - t] = '\0';
cp--;
break;
case 'l':
case 'L':
len = extractaddr(cp + 1, &t, &cp, &tpf);
if (len == -1) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "command syntax error");
reply_error(cmd, ECODE_PARSE_15);
goto err_undo_1;
}
c = t[len];
t[len] = '\0';
ulop->local_addr = host2bindaddr(cf, t, tpf, &errmsg);
if (ulop->local_addr == NULL) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR,
"invalid local address: %s: %s", t, errmsg);
reply_error(cmd, ECODE_INVLARG_1);
goto err_undo_1;
}
t[len] = c;
cp--;
break;
case 'r':
case 'R':
len = extractaddr(cp + 1, &t, &cp, &tpf);
if (len == -1) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "command syntax error");
reply_error(cmd, ECODE_PARSE_16);
goto err_undo_1;
}
c = t[len];
t[len] = '\0';
ulop->local_addr = alloca(sizeof(struct sockaddr_storage));
n = resolve(ulop->local_addr, tpf, t, SERVICE, AI_PASSIVE);
if (n != 0) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR,
"invalid remote address: %s: %s", t, gai_strerror(n));
reply_error(cmd, ECODE_INVLARG_2);
goto err_undo_1;
}
if (local4remote(ulop->local_addr, satoss(ulop->local_addr)) == -1) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR,
"can't find local address for remote address: %s", t);
reply_error(cmd, ECODE_INVLARG_3);
goto err_undo_1;
}
ulop->local_addr = addr2bindaddr(cf, ulop->local_addr, &errmsg);
if (ulop->local_addr == NULL) {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR,
"invalid local address: %s", errmsg);
reply_error(cmd, ECODE_INVLARG_4);
goto err_undo_1;
}
t[len] = c;
cp--;
break;
case 'n':
case 'N':
ulop->new_port = 1;
break;
default:
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "unknown command modifier `%c'",
*cp);
break;
}
}
if (ulop->addr != NULL && ulop->port != NULL && strlen(ulop->addr) >= 7) {
n = resolve(sstosa(&tia), ulop->pf, ulop->addr, ulop->port, AI_NUMERICHOST);
if (n == 0) {
if (!ishostnull(sstosa(&tia))) {
for (i = 0; i < 2; i++) {
ulop->ia[i] = malloc(SS_LEN(&tia));
if (ulop->ia[i] == NULL) {
reply_error(cmd, ECODE_NOMEM_3);
goto err_undo_1;
}
memcpy(ulop->ia[i], &tia, SS_LEN(&tia));
}
/* Set port for RTCP, will work both for IPv4 and IPv6 */
n = ntohs(satosin(ulop->ia[1])->sin_port);
satosin(ulop->ia[1])->sin_port = htons(n + 1);
}
} else {
RTPP_LOG(cf->stable->glog, RTPP_LOG_ERR, "getaddrinfo(pf=%d, addr=%s, port=%s): %s",
ulop->pf, ulop->addr, ulop->port, gai_strerror(n));
}
}
return (ulop);
err_undo_1:
rtpp_command_ul_opts_free(ulop);
err_undo_0:
return (NULL);
}
int
handle_command(struct cfg *cf, int controlfd, double dtime)
{
int len, argc, i, pidx, asymmetric;
int external, pf, lidx, playcount, weak, tpf;
int fds[2], lport, n;
socklen_t rlen;
char buf[1024 * 8];
char *cp, *call_id, *from_tag, *to_tag, *addr, *port, *cookie;
char *pname, *codecs, *recording_name, *t;
struct rtpp_session *spa, *spb;
char **ap, *argv[10];
const char *rname, *errmsg;
struct sockaddr *ia[2], *lia[2];
struct sockaddr_storage raddr;
int requested_nsamples;
enum {DELETE, RECORD, PLAY, NOPLAY, COPY, UPDATE, LOOKUP, QUERY} op;
int max_argc;
char *socket_name_u, *notify_tag;
struct sockaddr *local_addr;
char c;
requested_nsamples = -1;
ia[0] = ia[1] = NULL;
spa = spb = NULL;
lia[0] = lia[1] = cf->bindaddr[0];
lidx = 1;
fds[0] = fds[1] = -1;
recording_name = NULL;
socket_name_u = notify_tag = NULL;
local_addr = NULL;
codecs = NULL;
if (cf->umode == 0) {
for (;;) {
len = read(controlfd, buf, sizeof(buf) - 1);
if (len != -1 || (errno != EAGAIN && errno != EINTR))
break;
sched_yield();
}
} else {
rlen = sizeof(raddr);
len = recvfrom(controlfd, buf, sizeof(buf) - 1, 0,
sstosa(&raddr), &rlen);
}
if (len == -1) {
if (errno != EAGAIN && errno != EINTR)
rtpp_log_ewrite(RTPP_LOG_ERR, cf->glog, "can't read from control socket");
return -1;
}
buf[len] = '\0';
rtpp_log_write(RTPP_LOG_DBUG, cf->glog, "received command \"%s\"", buf);
cp = buf;
argc = 0;
memset(argv, 0, sizeof(argv));
for (ap = argv; (*ap = rtpp_strsep(&cp, "\r\n\t ")) != NULL;)
if (**ap != '\0') {
argc++;
if (++ap >= &argv[10])
break;
}
cookie = NULL;
if (argc < 1 || (cf->umode != 0 && argc < 2)) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 0);
return 0;
}
/* Stream communication mode doesn't use cookie */
if (cf->umode != 0) {
cookie = argv[0];
for (i = 1; i < argc; i++)
argv[i - 1] = argv[i];
argc--;
argv[argc] = NULL;
} else {
cookie = NULL;
}
addr = port = NULL;
switch (argv[0][0]) {
case 'u':
case 'U':
/* U[opts] callid remote_ip remote_port from_tag [to_tag] */
op = UPDATE;
rname = "update/create";
break;
case 'l':
case 'L':
op = LOOKUP;
rname = "lookup";
break;
case 'd':
case 'D':
op = DELETE;
rname = "delete";
break;
case 'p':
case 'P':
/*
* P callid pname codecs from_tag to_tag
*
* <codecs> could be either comma-separated list of supported
* payload types or word "session" (without quotes), in which
* case list saved on last session update will be used instead.
*/
op = PLAY;
rname = "play";
playcount = 1;
pname = argv[2];
codecs = argv[3];
break;
case 'r':
case 'R':
op = RECORD;
rname = "record";
break;
case 'c':
case 'C':
op = COPY;
rname = "copy";
break;
case 's':
case 'S':
op = NOPLAY;
rname = "noplay";
break;
case 'v':
case 'V':
if (argv[0][1] == 'F' || argv[0][1] == 'f') {
int i, known;
/*
* Wait for protocol version datestamp and check whether we
* know it.
*/
if (argc != 2 && argc != 3) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 2);
return 0;
}
/*
* Only list 20081224 protocol mod as supported if
* user actually enabled notification with -n
*/
if (strcmp(argv[1], "20081224") == 0 &&
cf->timeout_handler.socket_name == NULL) {
reply_number(cf, controlfd, &raddr, rlen, cookie, 0);
return 0;
}
for (known = i = 0; proto_caps[i].pc_id != NULL; ++i) {
if (!strcmp(argv[1], proto_caps[i].pc_id)) {
known = 1;
break;
}
}
reply_number(cf, controlfd, &raddr, rlen, cookie, known);
return 0;
}
if (argc != 1 && argc != 2) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 2);
return 0;
}
/* This returns base version. */
reply_number(cf, controlfd, &raddr, rlen, cookie, CPROTOVER);
return 0;
case 'i':
case 'I':
if (cookie == NULL)
len = sprintf(buf, "sessions created: %llu\nactive sessions: %d\n"
"active streams: %d\n", cf->sessions_created,
cf->sessions_active, cf->nsessions / 2);
else
len = sprintf(buf, "%s sessions created: %llu\nactive sessions: %d\n"
"active streams: %d\n", cookie, cf->sessions_created,
cf->sessions_active, cf->nsessions / 2);
for (i = 1; i < cf->nsessions; i++) {
char addrs[4][256];
spa = cf->sessions[i];
if (spa == NULL || spa->sidx[0] != i)
continue;
/* RTCP twin session */
if (spa->rtcp == NULL) {
spb = spa->rtp;
buf[len++] = '\t';
} else {
spb = spa->rtcp;
buf[len++] = '\t';
buf[len++] = 'C';
buf[len++] = ' ';
}
addr2char_r(spb->laddr[1], addrs[0], sizeof(addrs[0]));
if (spb->addr[1] == NULL) {
strcpy(addrs[1], "NONE");
} else {
sprintf(addrs[1], "%s:%d", addr2char(spb->addr[1]),
addr2port(spb->addr[1]));
}
addr2char_r(spb->laddr[0], addrs[2], sizeof(addrs[2]));
if (spb->addr[0] == NULL) {
strcpy(addrs[3], "NONE");
} else {
sprintf(addrs[3], "%s:%d", addr2char(spb->addr[0]),
addr2port(spb->addr[0]));
}
len += sprintf(buf + len,
"%s/%s: caller = %s:%d/%s, callee = %s:%d/%s, "
"stats = %lu/%lu/%lu/%lu, ttl = %d/%d\n",
spb->call_id, spb->tag, addrs[0], spb->ports[1], addrs[1],
addrs[2], spb->ports[0], addrs[3], spa->pcount[0], spa->pcount[1],
spa->pcount[2], spa->pcount[3], spb->ttl[0], spb->ttl[1]);
if (len + 512 > sizeof(buf)) {
doreply(cf, controlfd, buf, len, &raddr, rlen);
len = 0;
}
}
if (len > 0)
doreply(cf, controlfd, buf, len, &raddr, rlen);;
return 0;
break;
case 'q':
case 'Q':
op = QUERY;
rname = "query";
break;
case 'x':
case 'X':
/* Delete all active sessions */
rtpp_log_write(RTPP_LOG_INFO, cf->glog, "deleting all active sessions");
for (i = 1; i < cf->nsessions; i++) {
spa = cf->sessions[i];
if (spa == NULL || spa->sidx[0] != i)
continue;
/* Skip RTCP twin session */
if (spa->rtcp != NULL) {
remove_session(cf, spa);
}
}
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "unknown command");
reply_error(cf, controlfd, &raddr, rlen, cookie, 3);
return 0;
}
call_id = argv[1];
if (op == UPDATE || op == LOOKUP || op == PLAY) {
max_argc = (op == UPDATE ? 8 : 6);
if (argc < 5 || argc > max_argc) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 4);
return 0;
}
from_tag = argv[4];
to_tag = argv[5];
if (op == PLAY && argv[0][1] != '\0')
playcount = atoi(argv[0] + 1);
if (op == UPDATE && argc > 6) {
socket_name_u = argv[6];
if (strncmp("unix:", socket_name_u, 5) == 0)
socket_name_u += 5;
if (argc == 8) {
notify_tag = argv[7];
len = url_unquote((uint8_t *)notify_tag, strlen(notify_tag));
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog,
"command syntax error - invalid URL encoding");
reply_error(cf, controlfd, &raddr, rlen, cookie, 4);
return 0;
}
notify_tag[len] = '\0';
}
}
}
if (op == COPY) {
if (argc < 4 || argc > 5) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
recording_name = argv[2];
from_tag = argv[3];
to_tag = argv[4];
}
if (op == DELETE || op == RECORD || op == NOPLAY || op == QUERY) {
if (argc < 3 || argc > 4) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
from_tag = argv[2];
to_tag = argv[3];
}
if (op == DELETE || op == RECORD || op == COPY || op == NOPLAY) {
/* D, R and S commands don't take any modifiers */
if (argv[0][1] != '\0') {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
}
if (op == UPDATE || op == LOOKUP || op == DELETE) {
addr = argv[2];
port = argv[3];
/* Process additional command modifiers */
external = 1;
/* In bridge mode all clients are assumed to be asymmetric */
asymmetric = (cf->bmode != 0) ? 1 : 0;
pf = AF_INET;
weak = 0;
for (cp = argv[0] + 1; *cp != '\0'; cp++) {
switch (*cp) {
case 'a':
case 'A':
asymmetric = 1;
break;
case 'e':
case 'E':
if (lidx < 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
lia[lidx] = cf->bindaddr[1];
lidx--;
break;
case 'i':
case 'I':
if (lidx < 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
lia[lidx] = cf->bindaddr[0];
lidx--;
break;
case '6':
pf = AF_INET6;
break;
case 's':
case 'S':
asymmetric = 0;
break;
case 'w':
case 'W':
weak = 1;
break;
case 'z':
case 'Z':
requested_nsamples = (strtol(cp + 1, &cp, 10) / 10) * 80;
if (requested_nsamples <= 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
cp--;
break;
case 'c':
case 'C':
cp += 1;
for (t = cp; *cp != '\0'; cp++) {
if (!isdigit(*cp) && *cp != ',')
break;
}
if (t == cp) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
codecs = alloca(cp - t + 1);
memcpy(codecs, t, cp - t);
codecs[cp - t] = '\0';
cp--;
break;
case 'l':
case 'L':
len = extractaddr(cp + 1, &t, &cp, &tpf);
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
c = t[len];
t[len] = '\0';
local_addr = host2bindaddr(cf, t, tpf, &errmsg);
if (local_addr == NULL) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog,
"invalid local address: %s: %s", t, errmsg);
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
t[len] = c;
cp--;
break;
case 'r':
case 'R':
len = extractaddr(cp + 1, &t, &cp, &tpf);
if (len == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "command syntax error");
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
c = t[len];
t[len] = '\0';
local_addr = alloca(sizeof(struct sockaddr_storage));
n = resolve(local_addr, tpf, t, SERVICE, AI_PASSIVE);
if (n != 0) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog,
"invalid remote address: %s: %s", t, gai_strerror(n));
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
if (local4remote(cf, local_addr, satoss(local_addr)) == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog,
"can't find local address for remote address: %s", t);
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
local_addr = addr2bindaddr(cf, local_addr, &errmsg);
if (local_addr == NULL) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog,
"invalid local address: %s", errmsg);
reply_error(cf, controlfd, &raddr, rlen, cookie, 1);
return 0;
}
t[len] = c;
cp--;
break;
default:
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "unknown command modifier `%c'",
*cp);
break;
}
}
if (op != DELETE && addr != NULL && port != NULL && strlen(addr) >= 7) {
struct sockaddr_storage tia;
if ((n = resolve(sstosa(&tia), pf, addr, port,
AI_NUMERICHOST)) == 0) {
if (!ishostnull(sstosa(&tia))) {
for (i = 0; i < 2; i++) {
ia[i] = malloc(SS_LEN(&tia));
if (ia[i] == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie,
5, ia, fds, spa, spb);
return 0;
}
memcpy(ia[i], &tia, SS_LEN(&tia));
}
/* Set port for RTCP, will work both for IPv4 and IPv6 */
n = ntohs(satosin(ia[1])->sin_port);
satosin(ia[1])->sin_port = htons(n + 1);
}
} else {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "getaddrinfo: %s",
gai_strerror(n));
}
}
}
/*
* Record and delete need special handling since they apply to all
* streams in the session.
*/
switch (op) {
case DELETE:
i = handle_delete(cf, call_id, from_tag, to_tag, weak);
break;
case RECORD:
i = handle_record(cf, call_id, from_tag, to_tag);
break;
default:
i = find_stream(cf, call_id, from_tag, to_tag, &spa);
if (i != -1 && op != UPDATE)
i = NOT(i);
break;
}
if (i == -1 && op != UPDATE) {
rtpp_log_write(RTPP_LOG_INFO, cf->glog,
"%s request failed: session %s, tags %s/%s not found", rname,
call_id, from_tag, to_tag != NULL ? to_tag : "NONE");
if (op == LOOKUP) {
for (i = 0; i < 2; i++)
if (ia[i] != NULL)
free(ia[i]);
reply_port(cf, controlfd, &raddr, rlen, cookie, 0, lia);
return 0;
}
reply_error(cf, controlfd, &raddr, rlen, cookie, 8);
return 0;
}
switch (op) {
case DELETE:
case RECORD:
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case NOPLAY:
handle_noplay(cf, spa, i);
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case PLAY:
handle_noplay(cf, spa, i);
if (strcmp(codecs, "session") == 0) {
if (spa->codecs[i] == NULL) {
reply_error(cf, controlfd, &raddr, rlen, cookie, 6);
return 0;
}
codecs = spa->codecs[i];
}
if (playcount != 0 && handle_play(cf, spa, i, codecs, pname, playcount) != 0) {
reply_error(cf, controlfd, &raddr, rlen, cookie, 6);
return 0;
}
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case COPY:
handle_copy(cf, spa, i, recording_name);
reply_ok(cf, controlfd, &raddr, rlen, cookie);
return 0;
case QUERY:
handle_query(cf, controlfd, &raddr, rlen, cookie, spa, i);
return 0;
case LOOKUP:
case UPDATE:
/* those are handled below */
break;
default:
/* Programmatic error, should not happen */
abort();
}
pidx = 1;
lport = 0;
if (i != -1) {
assert(op == UPDATE || op == LOOKUP);
if (spa->fds[i] == -1) {
if (local_addr != NULL) {
spa->laddr[i] = local_addr;
}
if (create_listener(cf, spa->laddr[i], &lport, fds) == -1) {
rtpp_log_write(RTPP_LOG_ERR, spa->log, "can't create listener");
reply_error(cf, controlfd, &raddr, rlen, cookie, 7);
return 0;
}
assert(spa->fds[i] == -1);
spa->fds[i] = fds[0];
assert(spa->rtcp->fds[i] == -1);
spa->rtcp->fds[i] = fds[1];
spa->ports[i] = lport;
spa->rtcp->ports[i] = lport + 1;
spa->complete = spa->rtcp->complete = 1;
append_session(cf, spa, i);
append_session(cf, spa->rtcp, i);
}
if (weak)
spa->weak[i] = 1;
else if (op == UPDATE)
spa->strong = 1;
lport = spa->ports[i];
lia[0] = spa->laddr[i];
pidx = (i == 0) ? 1 : 0;
spa->ttl_mode = cf->ttl_mode;
spa->ttl[0] = cf->max_ttl;
spa->ttl[1] = cf->max_ttl;
if (op == UPDATE) {
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"adding %s flag to existing session, new=%d/%d/%d",
weak ? ( i ? "weak[1]" : "weak[0]" ) : "strong",
spa->strong, spa->weak[0], spa->weak[1]);
}
rtpp_log_write(RTPP_LOG_INFO, spa->log,
"lookup on ports %d/%d, session timer restarted", spa->ports[0],
spa->ports[1]);
} else {
assert(op == UPDATE);
rtpp_log_write(RTPP_LOG_INFO, cf->glog,
"new session %s, tag %s requested, type %s",
call_id, from_tag, weak ? "weak" : "strong");
if (local_addr != NULL) {
lia[0] = lia[1] = local_addr;
if (lia[0] == NULL) {
rtpp_log_write(RTPP_LOG_ERR, spa->log,
"can't create listener: %s", t);
reply_error(cf, controlfd, &raddr, rlen, cookie, 10);
return 0;
}
}
if (create_listener(cf, lia[0], &lport, fds) == -1) {
rtpp_log_write(RTPP_LOG_ERR, cf->glog, "can't create listener");
reply_error(cf, controlfd, &raddr, rlen, cookie, 10);
return 0;
}
/*
* Session creation. If creation is requested with weak flag,
* set weak[0].
*/
spa = malloc(sizeof(*spa));
if (spa == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 11, ia,
fds, spa, spb);
return 0;
}
/* spb is RTCP twin session for this one. */
spb = malloc(sizeof(*spb));
if (spb == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 12, ia,
fds, spa, spb);
return 0;
}
memset(spa, 0, sizeof(*spa));
memset(spb, 0, sizeof(*spb));
for (i = 0; i < 2; i++) {
spa->fds[i] = spb->fds[i] = -1;
spa->last_update[i] = 0;
spb->last_update[i] = 0;
}
spa->call_id = strdup(call_id);
if (spa->call_id == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 13, ia,
fds, spa, spb);
return 0;
}
spb->call_id = spa->call_id;
spa->tag = strdup(from_tag);
if (spa->tag == NULL) {
handle_nomem(cf, controlfd, &raddr, rlen, cookie, 14, ia,
fds, spa, spb);
return 0;
}
spb->tag = spa->tag;
for (i = 0; i < 2; i++) {
spa->rrcs[i] = NULL;
spb->rrcs[i] = NULL;
spa->laddr[i] = lia[i];
spb->laddr[i] = lia[i];
}
spa->strong = spa->weak[0] = spa->weak[1] = 0;
if (weak)
spa->weak[0] = 1;
else
spa->strong = 1;
assert(spa->fds[0] == -1);
spa->fds[0] = fds[0];
assert(spb->fds[0] == -1);
spb->fds[0] = fds[1];
spa->ports[0] = lport;
spb->ports[0] = lport + 1;
spa->ttl[0] = cf->max_ttl;
spa->ttl[1] = cf->max_ttl;
spb->ttl[0] = -1;
spb->ttl[1] = -1;
spa->log = rtpp_log_open(cf, "rtpproxy", spa->call_id, 0);
spb->log = spa->log;
spa->rtcp = spb;
spb->rtcp = NULL;
spa->rtp = NULL;
spb->rtp = spa;
spa->sridx = spb->sridx = -1;
append_session(cf, spa, 0);
append_session(cf, spa, 1);
append_session(cf, spb, 0);
append_session(cf, spb, 1);
hash_table_append(cf, spa);
cf->sessions_created++;
cf->sessions_active++;
/*
* Each session can consume up to 5 open file descriptors (2 RTP,
* 2 RTCP and 1 logging) so that warn user when he is likely to
* exceed 80% mark on hard limit.
*/
if (cf->sessions_active > (cf->nofile_limit.rlim_max * 80 / (100 * 5)) &&
cf->nofile_limit_warned == 0) {
cf->nofile_limit_warned = 1;
rtpp_log_write(RTPP_LOG_WARN, cf->glog, "passed 80%% "
"threshold on the open file descriptors limit (%d), "
"consider increasing the limit using -L command line "
"option", (int)cf->nofile_limit.rlim_max);
}
rtpp_log_write(RTPP_LOG_INFO, spa->log, "new session on a port %d created, "
"tag %s", lport, from_tag);
if (cf->record_all != 0) {
handle_copy(cf, spa, 0, NULL);
handle_copy(cf, spa, 1, NULL);
}
}
if (op == UPDATE) {
if (cf->timeout_handler.socket_name == NULL && socket_name_u != NULL)
rtpp_log_write(RTPP_LOG_ERR, spa->log, "must permit notification socket with -n");
if (spa->timeout_data.notify_tag != NULL) {
free(spa->timeout_data.notify_tag);
spa->timeout_data.notify_tag = NULL;
}
if (cf->timeout_handler.socket_name != NULL && socket_name_u != NULL) {
if (strcmp(cf->timeout_handler.socket_name, socket_name_u) != 0) {
rtpp_log_write(RTPP_LOG_ERR, spa->log, "invalid socket name %s", socket_name_u);
socket_name_u = NULL;
} else {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "setting timeout handler");
spa->timeout_data.handler = &cf->timeout_handler;
spa->timeout_data.notify_tag = strdup(notify_tag);
}
} else if (socket_name_u == NULL && spa->timeout_data.handler != NULL) {
spa->timeout_data.handler = NULL;
rtpp_log_write(RTPP_LOG_INFO, spa->log, "disabling timeout handler");
}
}
if (ia[0] != NULL && ia[1] != NULL) {
if (spa->addr[pidx] != NULL)
spa->last_update[pidx] = dtime;
if (spa->rtcp->addr[pidx] != NULL)
spa->rtcp->last_update[pidx] = dtime;
/*
* Unless the address provided by client historically
* cannot be trusted and address is different from one
* that we recorded update it.
*/
if (spa->untrusted_addr[pidx] == 0 && !(spa->addr[pidx] != NULL &&
SA_LEN(ia[0]) == SA_LEN(spa->addr[pidx]) &&
memcmp(ia[0], spa->addr[pidx], SA_LEN(ia[0])) == 0)) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "pre-filling %s's address "
"with %s:%s", (pidx == 0) ? "callee" : "caller", addr, port);
if (spa->addr[pidx] != NULL) {
if (spa->canupdate[pidx] == 0) {
if (spa->prev_addr[pidx] != NULL)
free(spa->prev_addr[pidx]);
spa->prev_addr[pidx] = spa->addr[pidx];
} else {
free(spa->addr[pidx]);
}
}
spa->addr[pidx] = ia[0];
ia[0] = NULL;
}
if (spa->rtcp->untrusted_addr[pidx] == 0 && !(spa->rtcp->addr[pidx] != NULL &&
SA_LEN(ia[1]) == SA_LEN(spa->rtcp->addr[pidx]) &&
memcmp(ia[1], spa->rtcp->addr[pidx], SA_LEN(ia[1])) == 0)) {
if (spa->rtcp->addr[pidx] != NULL) {
if (spa->rtcp->canupdate[pidx] == 0) {
if (spa->rtcp->prev_addr[pidx] != NULL)
free(spa->rtcp->prev_addr[pidx]);
spa->rtcp->prev_addr[pidx] = spa->rtcp->addr[pidx];
} else {
free(spa->rtcp->addr[pidx]);
}
}
spa->rtcp->addr[pidx] = ia[1];
ia[1] = NULL;
}
}
spa->asymmetric[pidx] = spa->rtcp->asymmetric[pidx] = asymmetric;
spa->canupdate[pidx] = spa->rtcp->canupdate[pidx] = NOT(asymmetric);
if (spa->codecs[pidx] != NULL) {
free(spa->codecs[pidx]);
spa->codecs[pidx] = NULL;
}
if (codecs != NULL)
spa->codecs[pidx] = strdup(codecs);
if (requested_nsamples > 0) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "RTP packets from %s "
"will be resized to %d milliseconds",
(pidx == 0) ? "callee" : "caller", requested_nsamples / 8);
} else if (spa->resizers[pidx].output_nsamples > 0) {
rtpp_log_write(RTPP_LOG_INFO, spa->log, "Resizing of RTP "
"packets from %s has been disabled",
(pidx == 0) ? "callee" : "caller");
}
spa->resizers[pidx].output_nsamples = requested_nsamples;
for (i = 0; i < 2; i++)
if (ia[i] != NULL)
free(ia[i]);
assert(lport != 0);
reply_port(cf, controlfd, &raddr, rlen, cookie, lport, lia);
return 0;
}
static void
init_config(struct cfg *cf, int argc, char **argv)
{
int ch, i;
char *bh[2], *bh6[2], *cp, *tp[2];
const char *errmsg;
struct passwd *pp;
struct group *gp;
double x, y;
bh[0] = bh[1] = bh6[0] = bh6[1] = NULL;
cf->stable->port_min = PORT_MIN;
cf->stable->port_max = PORT_MAX;
cf->stable->port_ctl = 0;
cf->stable->advaddr[0] = NULL;
cf->stable->advaddr[1] = NULL;
cf->stable->max_ttl = SESSION_TIMEOUT;
cf->stable->tos = TOS;
cf->stable->rrtcp = 1;
cf->stable->ttl_mode = TTL_UNIFIED;
cf->stable->log_level = -1;
cf->stable->log_facility = -1;
cf->stable->sched_offset = 0.0;
cf->stable->sched_hz = rtpp_get_sched_hz();
cf->stable->sched_policy = SCHED_OTHER;
cf->stable->target_pfreq = MIN(POLL_RATE, cf->stable->sched_hz);
#if defined(RTPP_DEBUG)
printf("target_pfreq = %f\n", cf->stable->target_pfreq);
#endif
cf->stable->slowshutdown = 0;
cf->timeout_handler = rtpp_th_init();
if (cf->timeout_handler == NULL)
err(1, "rtpp_th_init");
pthread_mutex_init(&cf->glock, NULL);
pthread_mutex_init(&cf->sessinfo.lock, NULL);
pthread_mutex_init(&cf->bindaddr_lock, NULL);
cf->stable->nofile_limit = malloc(sizeof(*cf->stable->nofile_limit));
if (cf->stable->nofile_limit == NULL)
err(1, "malloc");
if (getrlimit(RLIMIT_NOFILE, cf->stable->nofile_limit) != 0)
err(1, "getrlimit");
while ((ch = getopt(argc, argv, "vf2Rl:6:s:S:t:r:p:T:L:m:M:u:Fin:Pad:VN:c:A:")) != -1)
switch (ch) {
case 'c':
if (strcmp(optarg, "fifo") == 0) {
cf->stable->sched_policy = SCHED_FIFO;
break;
}
if (strcmp(optarg, "rr") == 0) {
cf->stable->sched_policy = SCHED_RR;
break;
}
errx(1, "%s: unknown scheduling policy", optarg);
break;
case 'N':
if (strcmp(optarg, "random") == 0) {
x = getdtime() * 1000000.0;
srand48((long)x);
cf->stable->sched_offset = drand48();
} else {
tp[0] = optarg;
tp[1] = strchr(tp[0], '/');
if (tp[1] == NULL) {
errx(1, "%s: -N should be in the format X/Y", optarg);
}
*tp[1] = '\0';
tp[1]++;
x = (double)strtol(tp[0], &tp[0], 10);
y = (double)strtol(tp[1], &tp[1], 10);
cf->stable->sched_offset = x / y;
}
x = (double)cf->stable->sched_hz / cf->stable->target_pfreq;
cf->stable->sched_offset = trunc(x * cf->stable->sched_offset) / x;
cf->stable->sched_offset /= cf->stable->target_pfreq;
warnx("sched_offset = %f", cf->stable->sched_offset);
break;
case 'f':
cf->stable->nodaemon = 1;
break;
case 'l':
bh[0] = optarg;
bh[1] = strchr(bh[0], '/');
if (bh[1] != NULL) {
*bh[1] = '\0';
bh[1]++;
cf->stable->bmode = 1;
}
break;
case '6':
bh6[0] = optarg;
bh6[1] = strchr(bh6[0], '/');
if (bh6[1] != NULL) {
*bh6[1] = '\0';
bh6[1]++;
cf->stable->bmode = 1;
}
break;
case 'A':
if (*optarg == '\0') {
errx(1, "first advertised address is invalid");
}
cf->stable->advaddr[0] = optarg;
cp = strchr(optarg, '/');
if (cp != NULL) {
*cp = '\0';
cp++;
if (*cp == '\0') {
errx(1, "second advertised address is invalid");
}
}
cf->stable->advaddr[1] = cp;
break;
case 's':
if (strncmp("udp:", optarg, 4) == 0) {
cf->stable->umode = 1;
optarg += 4;
} else if (strncmp("udp6:", optarg, 5) == 0) {
cf->stable->umode = 6;
optarg += 5;
} else if (strncmp("unix:", optarg, 5) == 0) {
cf->stable->umode = 0;
optarg += 5;
}
cmd_sock = optarg;
break;
case 't':
cf->stable->tos = atoi(optarg);
if (cf->stable->tos > 255)
errx(1, "%d: TOS is too large", cf->stable->tos);
break;
case '2':
cf->stable->dmode = 1;
break;
case 'v':
printf("Basic version: %d\n", CPROTOVER);
for (i = 1; proto_caps[i].pc_id != NULL; ++i) {
printf("Extension %s: %s\n", proto_caps[i].pc_id,
proto_caps[i].pc_description);
}
exit(0);
break;
case 'r':
cf->stable->rdir = optarg;
break;
case 'S':
cf->stable->sdir = optarg;
break;
case 'R':
cf->stable->rrtcp = 0;
break;
case 'p':
pid_file = optarg;
break;
case 'T':
cf->stable->max_ttl = atoi(optarg);
break;
case 'L':
cf->stable->nofile_limit->rlim_cur = cf->stable->nofile_limit->rlim_max = atoi(optarg);
if (setrlimit(RLIMIT_NOFILE, cf->stable->nofile_limit) != 0)
err(1, "setrlimit");
if (getrlimit(RLIMIT_NOFILE, cf->stable->nofile_limit) != 0)
err(1, "getrlimit");
if (cf->stable->nofile_limit->rlim_max < atoi(optarg))
warnx("limit allocated by setrlimit (%d) is less than "
"requested (%d)", (int) cf->stable->nofile_limit->rlim_max,
atoi(optarg));
break;
case 'm':
cf->stable->port_min = atoi(optarg);
break;
case 'M':
cf->stable->port_max = atoi(optarg);
break;
case 'u':
cf->stable->run_uname = optarg;
cp = strchr(optarg, ':');
if (cp != NULL) {
if (cp == optarg)
cf->stable->run_uname = NULL;
cp[0] = '\0';
cp++;
}
cf->stable->run_gname = cp;
cf->stable->run_uid = -1;
cf->stable->run_gid = -1;
if (cf->stable->run_uname != NULL) {
pp = getpwnam(cf->stable->run_uname);
if (pp == NULL)
err(1, "can't find ID for the user: %s", cf->stable->run_uname);
cf->stable->run_uid = pp->pw_uid;
if (cf->stable->run_gname == NULL)
cf->stable->run_gid = pp->pw_gid;
}
if (cf->stable->run_gname != NULL) {
gp = getgrnam(cf->stable->run_gname);
if (gp == NULL)
err(1, "can't find ID for the group: %s", cf->stable->run_gname);
cf->stable->run_gid = gp->gr_gid;
}
break;
case 'F':
cf->stable->no_check = 1;
break;
case 'i':
cf->stable->ttl_mode = TTL_INDEPENDENT;
break;
case 'n':
if(strncmp("unix:", optarg, 5) == 0)
optarg += 5;
if(strlen(optarg) == 0)
errx(1, "timeout notification socket name too short");
if (rtpp_th_set_sn(cf->timeout_handler, optarg, NULL) == NULL) {
err(1, "can't allocate memory");
}
break;
case 'P':
cf->stable->record_pcap = 1;
break;
case 'a':
cf->stable->record_all = 1;
break;
case 'd':
cp = strchr(optarg, ':');
if (cp != NULL) {
cf->stable->log_facility = rtpp_log_str2fac(cp + 1);
if (cf->stable->log_facility == -1)
errx(1, "%s: invalid log facility", cp + 1);
*cp = '\0';
}
cf->stable->log_level = rtpp_log_str2lvl(optarg);
if (cf->stable->log_level == -1)
errx(1, "%s: invalid log level", optarg);
break;
case 'V':
printf("%s\n", RTPP_SW_VERSION);
exit(0);
break;
case '?':
default:
usage();
}
if (cf->stable->rdir == NULL && cf->stable->sdir != NULL)
errx(1, "-S switch requires -r switch");
if (cf->stable->no_check == 0 && getuid() == 0 && cf->stable->run_uname == NULL) {
if (cf->stable->umode != 0) {
errx(1, "running this program as superuser in a remote control "
"mode is strongly not recommended, as it poses serious security "
"threat to your system. Use -u option to run as an unprivileged "
"user or -F is you want to run as a superuser anyway.");
} else {
warnx("WARNING!!! Running this program as superuser is strongly "
"not recommended, as it may pose serious security threat to "
"your system. Use -u option to run as an unprivileged user "
"or -F to surpress this warning.");
}
}
/* make sure that port_min and port_max are even */
if ((cf->stable->port_min % 2) != 0)
cf->stable->port_min++;
if ((cf->stable->port_max % 2) != 0) {
cf->stable->port_max--;
} else {
/*
* If port_max is already even then there is no
* "room" for the RTCP port, go back by two ports.
*/
cf->stable->port_max -= 2;
}
if (!IS_VALID_PORT(cf->stable->port_min))
errx(1, "invalid value of the port_min argument, "
"not in the range 1-65535");
if (!IS_VALID_PORT(cf->stable->port_max))
errx(1, "invalid value of the port_max argument, "
"not in the range 1-65535");
if (cf->stable->port_min > cf->stable->port_max)
errx(1, "port_min should be less than port_max");
cf->sessinfo.sessions = malloc((sizeof cf->sessinfo.sessions[0]) *
(((cf->stable->port_max - cf->stable->port_min + 1)) + 1));
cf->rtp_servers = malloc((sizeof cf->rtp_servers[0]) *
(((cf->stable->port_max - cf->stable->port_min + 1) * 2) + 1));
cf->sessinfo.pfds_rtp = malloc((sizeof cf->sessinfo.pfds_rtp[0]) *
(((cf->stable->port_max - cf->stable->port_min + 1)) + 1));
cf->sessinfo.pfds_rtcp = malloc((sizeof cf->sessinfo.pfds_rtcp[0]) *
(((cf->stable->port_max - cf->stable->port_min + 1)) + 1));
if (bh[0] == NULL && bh[1] == NULL && bh6[0] == NULL && bh6[1] == NULL) {
bh[0] = "*";
}
for (i = 0; i < 2; i++) {
if (bh[i] != NULL && *bh[i] == '\0')
bh[i] = NULL;
if (bh6[i] != NULL && *bh6[i] == '\0')
bh6[i] = NULL;
}
i = ((bh[0] == NULL) ? 0 : 1) + ((bh[1] == NULL) ? 0 : 1) +
((bh6[0] == NULL) ? 0 : 1) + ((bh6[1] == NULL) ? 0 : 1);
if (cf->stable->bmode != 0) {
if (bh[0] != NULL && bh6[0] != NULL)
errx(1, "either IPv4 or IPv6 should be configured for external "
"interface in bridging mode, not both");
if (bh[1] != NULL && bh6[1] != NULL)
errx(1, "either IPv4 or IPv6 should be configured for internal "
"interface in bridging mode, not both");
if (cf->stable->advaddr[0] != NULL && cf->stable->advaddr[1] == NULL)
errx(1, "two advertised addresses are required for internal "
"and external interfaces in bridging mode");
if (i != 2)
errx(1, "incomplete configuration of the bridging mode - exactly "
"2 listen addresses required, %d provided", i);
} else if (i != 1) {
errx(1, "exactly 1 listen addresses required, %d provided", i);
}
for (i = 0; i < 2; i++) {
cf->stable->bindaddr[i] = NULL;
if (bh[i] != NULL) {
cf->stable->bindaddr[i] = host2bindaddr(cf, bh[i], AF_INET, &errmsg);
if (cf->stable->bindaddr[i] == NULL)
errx(1, "host2bindaddr: %s", errmsg);
continue;
}
if (bh6[i] != NULL) {
cf->stable->bindaddr[i] = host2bindaddr(cf, bh6[i], AF_INET6, &errmsg);
if (cf->stable->bindaddr[i] == NULL)
errx(1, "host2bindaddr: %s", errmsg);
continue;
}
}
if (cf->stable->bindaddr[0] == NULL) {
cf->stable->bindaddr[0] = cf->stable->bindaddr[1];
cf->stable->bindaddr[1] = NULL;
}
}
static void
init_config(struct cfg *cf, int argc, char **argv)
{
int ch, i;
char *bh[2], *bh6[2], *cp;
const char *errmsg;
struct passwd *pp;
struct group *gp;
bh[0] = bh[1] = bh6[0] = bh6[1] = NULL;
cf->stable.port_min = PORT_MIN;
cf->stable.port_max = PORT_MAX;
cf->stable.max_ttl = SESSION_TIMEOUT;
cf->stable.tos = TOS;
cf->stable.rrtcp = 1;
cf->stable.ttl_mode = TTL_UNIFIED;
cf->stable.log_level = -1;
cf->stable.log_facility = -1;
pthread_mutex_init(&cf->glock, NULL);
pthread_mutex_init(&cf->sessinfo.lock, NULL);
pthread_mutex_init(&cf->bindaddr_lock, NULL);
if (getrlimit(RLIMIT_NOFILE, &(cf->stable.nofile_limit)) != 0)
err(1, "getrlimit");
while ((ch = getopt(argc, argv, "vf2Rl:6:s:S:t:r:p:T:L:m:M:u:Fin:Pad:")) != -1)
switch (ch) {
case 'f':
cf->stable.nodaemon = 1;
break;
case 'l':
bh[0] = optarg;
bh[1] = strchr(bh[0], '/');
if (bh[1] != NULL) {
*bh[1] = '\0';
bh[1]++;
cf->stable.bmode = 1;
}
break;
case '6':
bh6[0] = optarg;
bh6[1] = strchr(bh6[0], '/');
if (bh6[1] != NULL) {
*bh6[1] = '\0';
bh6[1]++;
cf->stable.bmode = 1;
}
break;
case 's':
if (strncmp("udp:", optarg, 4) == 0) {
cf->stable.umode = 1;
optarg += 4;
} else if (strncmp("udp6:", optarg, 5) == 0) {
cf->stable.umode = 6;
optarg += 5;
} else if (strncmp("unix:", optarg, 5) == 0) {
cf->stable.umode = 0;
optarg += 5;
}
cmd_sock = optarg;
break;
case 't':
cf->stable.tos = atoi(optarg);
if (cf->stable.tos > 255)
errx(1, "%d: TOS is too large", cf->stable.tos);
break;
case '2':
cf->stable.dmode = 1;
break;
case 'v':
printf("Basic version: %d\n", CPROTOVER);
for (i = 1; proto_caps[i].pc_id != NULL; ++i) {
printf("Extension %s: %s\n", proto_caps[i].pc_id,
proto_caps[i].pc_description);
}
exit(0);
break;
case 'r':
cf->stable.rdir = optarg;
break;
case 'S':
cf->stable.sdir = optarg;
break;
case 'R':
cf->stable.rrtcp = 0;
break;
case 'p':
pid_file = optarg;
break;
case 'T':
cf->stable.max_ttl = atoi(optarg);
break;
case 'L':
cf->stable.nofile_limit.rlim_cur = cf->stable.nofile_limit.rlim_max = atoi(optarg);
if (setrlimit(RLIMIT_NOFILE, &(cf->stable.nofile_limit)) != 0)
err(1, "setrlimit");
if (getrlimit(RLIMIT_NOFILE, &(cf->stable.nofile_limit)) != 0)
err(1, "getrlimit");
if (cf->stable.nofile_limit.rlim_max < atoi(optarg))
warnx("limit allocated by setrlimit (%d) is less than "
"requested (%d)", (int) cf->stable.nofile_limit.rlim_max,
atoi(optarg));
break;
case 'm':
cf->stable.port_min = atoi(optarg);
break;
case 'M':
cf->stable.port_max = atoi(optarg);
break;
case 'u':
cf->stable.run_uname = optarg;
cp = strchr(optarg, ':');
if (cp != NULL) {
if (cp == optarg)
cf->stable.run_uname = NULL;
cp[0] = '\0';
cp++;
}
cf->stable.run_gname = cp;
cf->stable.run_uid = -1;
cf->stable.run_gid = -1;
if (cf->stable.run_uname != NULL) {
pp = getpwnam(cf->stable.run_uname);
if (pp == NULL)
err(1, "can't find ID for the user: %s", cf->stable.run_uname);
cf->stable.run_uid = pp->pw_uid;
if (cf->stable.run_gname == NULL)
cf->stable.run_gid = pp->pw_gid;
}
if (cf->stable.run_gname != NULL) {
gp = getgrnam(cf->stable.run_gname);
if (gp == NULL)
err(1, "can't find ID for the group: %s", cf->stable.run_gname);
cf->stable.run_gid = gp->gr_gid;
}
break;
case 'F':
cf->stable.no_check = 1;
break;
case 'i':
cf->stable.ttl_mode = TTL_INDEPENDENT;
break;
case 'n':
if(strncmp("unix:", optarg, 5) == 0)
optarg += 5;
if(strlen(optarg) == 0)
errx(1, "timeout notification socket name too short");
cf->timeout_socket = optarg;
break;
case 'P':
cf->stable.record_pcap = 1;
break;
case 'a':
cf->stable.record_all = 1;
break;
case 'd':
cp = strchr(optarg, ':');
if (cp != NULL) {
cf->stable.log_facility = rtpp_log_str2fac(cp + 1);
if (cf->stable.log_facility == -1)
errx(1, "%s: invalid log facility", cp + 1);
*cp = '\0';
}
cf->stable.log_level = rtpp_log_str2lvl(optarg);
if (cf->stable.log_level == -1)
errx(1, "%s: invalid log level", optarg);
break;
case '?':
default:
usage();
}
if (cf->stable.rdir == NULL && cf->stable.sdir != NULL)
errx(1, "-S switch requires -r switch");
if (cf->stable.no_check == 0 && getuid() == 0 && cf->stable.run_uname == NULL) {
if (cf->stable.umode != 0) {
errx(1, "running this program as superuser in a remote control "
"mode is strongly not recommended, as it poses serious security "
"threat to your system. Use -u option to run as an unprivileged "
"user or -F is you want to run as a superuser anyway.");
} else {
warnx("WARNING!!! Running this program as superuser is strongly "
"not recommended, as it may pose serious security threat to "
"your system. Use -u option to run as an unprivileged user "
"or -F to surpress this warning.");
}
}
/* make sure that port_min and port_max are even */
if ((cf->stable.port_min % 2) != 0)
cf->stable.port_min++;
if ((cf->stable.port_max % 2) != 0) {
cf->stable.port_max--;
} else {
/*
* If port_max is already even then there is no
* "room" for the RTCP port, go back by two ports.
*/
cf->stable.port_max -= 2;
}
if (!IS_VALID_PORT(cf->stable.port_min))
errx(1, "invalid value of the port_min argument, "
"not in the range 1-65535");
if (!IS_VALID_PORT(cf->stable.port_max))
errx(1, "invalid value of the port_max argument, "
"not in the range 1-65535");
if (cf->stable.port_min > cf->stable.port_max)
errx(1, "port_min should be less than port_max");
cf->sessinfo.sessions = malloc((sizeof cf->sessinfo.sessions[0]) *
(((cf->stable.port_max - cf->stable.port_min + 1) * 2) + 1));
cf->rtp_servers = malloc((sizeof cf->rtp_servers[0]) *
(((cf->stable.port_max - cf->stable.port_min + 1) * 2) + 1));
cf->sessinfo.pfds = malloc((sizeof cf->sessinfo.pfds[0]) *
(((cf->stable.port_max - cf->stable.port_min + 1) * 2) + 1));
if (bh[0] == NULL && bh[1] == NULL && bh6[0] == NULL && bh6[1] == NULL) {
bh[0] = "*";
}
for (i = 0; i < 2; i++) {
if (bh[i] != NULL && *bh[i] == '\0')
bh[i] = NULL;
if (bh6[i] != NULL && *bh6[i] == '\0')
bh6[i] = NULL;
}
i = ((bh[0] == NULL) ? 0 : 1) + ((bh[1] == NULL) ? 0 : 1) +
((bh6[0] == NULL) ? 0 : 1) + ((bh6[1] == NULL) ? 0 : 1);
if (cf->stable.bmode != 0) {
if (bh[0] != NULL && bh6[0] != NULL)
errx(1, "either IPv4 or IPv6 should be configured for external "
"interface in bridging mode, not both");
if (bh[1] != NULL && bh6[1] != NULL)
errx(1, "either IPv4 or IPv6 should be configured for internal "
"interface in bridging mode, not both");
if (i != 2)
errx(1, "incomplete configuration of the bridging mode - exactly "
"2 listen addresses required, %d provided", i);
} else if (i != 1) {
errx(1, "exactly 1 listen addresses required, %d provided", i);
}
for (i = 0; i < 2; i++) {
cf->stable.bindaddr[i] = NULL;
if (bh[i] != NULL) {
cf->stable.bindaddr[i] = host2bindaddr(cf, bh[i], AF_INET, &errmsg);
if (cf->stable.bindaddr[i] == NULL)
errx(1, "host2bindaddr: %s", errmsg);
continue;
}
if (bh6[i] != NULL) {
cf->stable.bindaddr[i] = host2bindaddr(cf, bh6[i], AF_INET6, &errmsg);
if (cf->stable.bindaddr[i] == NULL)
errx(1, "host2bindaddr: %s", errmsg);
continue;
}
}
if (cf->stable.bindaddr[0] == NULL) {
cf->stable.bindaddr[0] = cf->stable.bindaddr[1];
cf->stable.bindaddr[1] = NULL;
}
}
