/* -*-c-*-
*
- * $Id: tripe.c,v 1.6 2001/06/19 22:08:37 mdw Exp $
+ * $Id$
*
* Main program
*
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: tripe.c,v $
- * Revision 1.6 2001/06/19 22:08:37 mdw
- * Moved buffers to peer.c.
- *
- * Revision 1.5 2001/02/16 21:43:12 mdw
- * Provide a more helpful usage message.
- *
- * Revision 1.4 2001/02/16 21:41:31 mdw
- * Add a new buffer.
- *
- * Revision 1.3 2001/02/04 17:10:40 mdw
- * Remove a debugging @abort@ call.
- *
- * Revision 1.2 2001/02/03 22:33:00 mdw
- * Stuff more randomness into the pool in the interval timer.
- *
- * Revision 1.1 2001/02/03 20:26:37 mdw
- * Initial checkin.
- *
- */
-
/*----- Header files ------------------------------------------------------*/
#include "tripe.h"
* Use: Called periodically to do housekeeping tasks.
*/
-void interval(struct timeval *tv, void *v)
+static void interval(struct timeval *tv, void *v)
{
struct timeval tvv;
T( trace(T_PEER, "peer: interval timer"); )
- rand_seed(RAND_GLOBAL, HASHSZ);
+ rand_seed(RAND_GLOBAL, MAXHASHSZ);
p_interval();
tvv = *tv;
tvv.tv_sec += T_INTERVAL;
sel_addtimer(&sel, &it, &tvv, interval, v);
}
+/* --- @mystrieq@ --- *
+ *
+ * Arguments: @const char *x, *y@ = two strings
+ *
+ * Returns: True if @x@ and @y are equal, up to case.
+ */
+
+int mystrieq(const char *x, const char *y)
+{
+ for (;;) {
+ if (!*x && !*y) return (1);
+ if (tolower((unsigned char)*x) != tolower((unsigned char)*y))
+ return (0);
+ x++; y++;
+ }
+}
+
/* --- @main@ --- *
*
* Arguments: @int argc@ = number of command line arguments
static void usage(FILE *fp)
{
- pquis(fp, "Usage: $ [-D] [-p port] [-T trace-opts] [-d dir] [-a socket]\n\
- [-k priv-keyring] [-K pub-keyring] [-t key-tag]\n");
+ pquis(fp, "Usage: $ [-D] [-d DIR] [-b ADDR] [-p PORT] [-n TUNNEL]\n\
+ [-U USER] [-G GROUP] [-a SOCKET] [-T TRACE-OPTS]\n\
+ [-k PRIV-KEYRING] [-K PUB-KEYRING] [-t KEY-TAG]\n");
}
static void version(FILE *fp)
-h, --help Display this help text.\n\
-v, --version Display version number.\n\
-u, --usage Display pointless usage message.\n\
+ --tunnels Display IP tunnel drivers and exit.\n\
\n\
-D, --daemon Run in the background.\n\
--d, --directory=DIR Switch to directory DIR (default $TRIPEDIR).\n\
+-d, --directory=DIR Switch to directory DIR [default " CONFIGDIR "].\n\
+-b, --bind-address=ADDR Bind UDP socket to this IP ADDR.\n\
-p, --port=PORT Select UDP port to listen to.\n\
+-n, --tunnel=TUNNEL Seelect default tunnel driver.\n\
+-U, --setuid=USER Set uid to USER after initialization.\n\
+-G, --setgid=GROUP Set gid to GROUP after initialization.\n\
-k, --priv-keyring=FILE Get private key from FILE.\n\
-K, --pub-keyring=FILE Get public keys from FILE.\n\
-t, --tag=KEYTAG Use private key labelled TAG.\n\
-a, --admin-socket=FILE Use FILE as the adminstration socket.\n\
+" T( "\
-T, --trace=OPTIONS Turn on tracing options.\n\
+" ) "\
", fp);
}
{
const char *kr_priv = "keyring", *kr_pub = "keyring.pub";
const char *tag_priv = "tripe-dh";
- const char *csock = "tripesock";
- const char *dir = "/var/lib/tripe";
+ const char *csock = SOCKETDIR "/tripesock";
+ const char *dir = CONFIGDIR;
const char *p;
unsigned port = 0;
+ struct in_addr baddr = { INADDR_ANY };
unsigned f = 0;
+ int i;
+ int selerr = 0;
+ struct timeval tv;
uid_t u = -1;
gid_t g = -1;
#define f_daemon 2u
ego(argv[0]);
- trace_on(stderr, 0);
+ T( trace_on(stderr, 0); )
if ((p = getenv("TRIPEDIR")) != 0)
dir = p;
+ tun_default = tunnels[0];
for (;;) {
static const struct option opts[] = {
{ "help", 0, 0, 'h' },
{ "version", 0, 0, 'v' },
{ "usage", 0, 0, 'u' },
+ { "tunnels", 0, 0, '0' },
{ "daemon", 0, 0, 'D' },
{ "uid", OPTF_ARGREQ, 0, 'U' },
{ "setuid", OPTF_ARGREQ, 0, 'U' },
{ "gid", OPTF_ARGREQ, 0, 'G' },
{ "setgid", OPTF_ARGREQ, 0, 'G' },
+ { "bind-address", OPTF_ARGREQ, 0, 'b' },
+ { "tunnel", OPTF_ARGREQ, 0, 'n' },
{ "port", OPTF_ARGREQ, 0, 'p' },
{ "directory", OPTF_ARGREQ, 0, 'd' },
{ "priv-keyring", OPTF_ARGREQ, 0, 'k' },
{ 0, 0, 0, 0 }
};
- int i = mdwopt(argc, argv, "hvu DU:G: p:d:k:K:t:a:" T("T:"),
- opts, 0, 0, 0);
+ i = mdwopt(argc, argv, "hvuDU:G:b:p:d:k:K:t:a:" T("T:"),
+ opts, 0, 0, 0);
if (i < 0)
break;
switch (i) {
f |= f_daemon;
break;
case 'U': {
+ struct passwd *pw;
char *p;
unsigned long i = strtoul(optarg, &p, 0);
if (!*p)
- u = i;
- else {
- struct passwd *pw;
- if ((pw = getpwnam(optarg)) == 0)
- die(EXIT_FAILURE, "user name `%s' not found", optarg);
- u = pw->pw_uid;
- }
+ pw = getpwuid(i);
+ else
+ pw = getpwnam(optarg);
+ if (!pw)
+ die(EXIT_FAILURE, "user `%s' not found", optarg);
+ u = pw->pw_uid;
+ if (g == -1)
+ g = pw->pw_gid;
} break;
case 'G': {
+ struct group *gr;
char *p;
unsigned long i = strtoul(optarg, &p, 0);
if (!*p)
- g = i;
- else {
- struct group *gr;
- if ((gr = getgrnam(optarg)) == 0)
- die(EXIT_FAILURE, "group name `%s' not found", optarg);
- g = gr->gr_gid;
- }
+ gr = getgrgid(i);
+ else
+ gr = getgrnam(optarg);
+ if (!gr)
+ die(EXIT_FAILURE, "group `%s' not found", optarg);
+ g = gr->gr_gid;
+ } break;
+
+ case 'b': {
+ struct hostent *h = gethostbyname(optarg);
+ if (!h)
+ die(EXIT_FAILURE, "unknown host name `%s'", optarg);
+ memcpy(&baddr, h->h_addr, sizeof(struct in_addr));
} break;
-
case 'p': {
char *p;
unsigned long i = strtoul(optarg, &p, 0);
die(EXIT_FAILURE, "bad port number %lu", i);
port = i;
} break;
+ case 'n': {
+ int i;
+ for (i = 0;; i++) {
+ if (!tunnels[i])
+ die(EXIT_FAILURE, "unknown tunnel `%s'", optarg);
+ if (mystrieq(optarg, tunnels[i]->name))
+ break;
+ }
+ tun_default = tunnels[i];
+ } break;
case 'd':
dir = optarg;
break;
trace_level(tr_flags);
break;
#endif
+ case '0': {
+ int i;
+ for (i = 0; tunnels[i]; i++)
+ puts(tunnels[i]->name);
+ exit(0);
+ } break;
default:
f |= f_bogus;
break;
sel_init(&sel);
sig_init(&sel);
rand_noisesrc(RAND_GLOBAL, &noise_source);
- rand_seed(RAND_GLOBAL, RMD160_HASHSZ);
+ rand_seed(RAND_GLOBAL, MAXHASHSZ);
signal(SIGPIPE, SIG_IGN);
- tun_init();
- p_init(port);
- if (!(f & f_daemon))
- a_create(STDIN_FILENO, STDOUT_FILENO);
- if (g != -1) {
- if (setgid(g)) {
+ for (i = 0; tunnels[i]; i++)
+ tunnels[i]->init();
+ p_init(baddr, port);
+ if (!(f & f_daemon)) {
+#ifndef NTRACE
+ a_create(STDIN_FILENO, STDOUT_FILENO, AF_TRACE | AF_WARN);
+#else
+ a_create(STDIN_FILENO, STDOUT_FILENO, AF_WARN);
+#endif
+ }
+ if (g != (gid_t)-1) {
+ if (setgid(g) || (getuid() == 0 && setgroups(1, &g))) {
die(EXIT_FAILURE, "couldn't setgid to %u: %s",
(unsigned)g, strerror(errno));
}
}
- if (u != -1) {
+ if (u != (uid_t)-1) {
if (setuid(u)) {
die(EXIT_FAILURE, "couldn't setuid to %u: %s",
(unsigned)u, strerror(errno));
a_daemon();
}
- {
- struct timeval tv;
- tv.tv_sec = time(0) + T_INTERVAL;
- tv.tv_usec = 0;
- sel_addtimer(&sel, &it, &tv, interval, 0);
- }
+ tv.tv_sec = time(0) + T_INTERVAL;
+ tv.tv_usec = 0;
+ sel_addtimer(&sel, &it, &tv, interval, 0);
- {
- int selerr = 0;
- for (;;) {
- if (!sel_select(&sel))
- selerr = 0;
- else if (errno != EINTR && errno != EAGAIN) {
- a_warn("select failed: %s", strerror(errno));
- selerr++;
- if (selerr > 8) {
- a_warn("too many select errors: bailing out");
- a_quit();
- }
+ for (;;) {
+ if (!sel_select(&sel))
+ selerr = 0;
+ else if (errno != EINTR && errno != EAGAIN) {
+ a_warn("SERVER", "select-error", "?ERRNO", A_END);
+ selerr++;
+ if (selerr > 8) {
+ a_warn("ABORT", "repeated-select-errors", A_END);
+ abort();
}
}
}
~mdw / tripe / blobdiff