*
* This file is part of Trivial IP Encryption (TrIPE).
*
- * TrIPE 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.
+ * TrIPE 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 3 of the License, or (at your
+ * option) any later version.
*
- * TrIPE 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.
+ * TrIPE 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 TrIPE; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * along with TrIPE. If not, see <https://www.gnu.org/licenses/>.
*/
/*----- Header files ------------------------------------------------------*/
/*----- Static variables --------------------------------------------------*/
+#ifdef HAVE_LIBADNS
+ static adns_state ads;
+ sel_hook hook;
+#endif
static admin *admins;
static admin *a_dead;
static sel_file sock;
-static const char *sockname;
+static const char *sockname = 0;
static sym_table a_svcs;
static unsigned flags = 0;
static admin *a_stdin = 0;
} else if (*fmt == '?') {
if (strcmp(fmt, "?ADDR") == 0) {
const addr *a = va_arg(*ap, const addr *);
- switch (a->sa.sa_family) {
- case AF_INET:
- u_quotify(d, "INET");
- u_quotify(d, inet_ntoa(a->sin.sin_addr));
- dstr_putf(d, " %u", (unsigned)ntohs(a->sin.sin_port));
- break;
- default:
- abort();
+ char name[NI_MAXHOST], serv[NI_MAXSERV];
+ int ix, err;
+ if ((err = getnameinfo(&a->sa, addrsz(a),
+ name, sizeof(name), serv, sizeof(serv),
+ (NI_NUMERICHOST | NI_NUMERICSERV |
+ NI_DGRAM)))) {
+ dstr_putf(d, " E%d", err);
+ u_quotify(d, gai_strerror(err));
+ } else {
+ ix = afix(a->sa.sa_family); assert(ix >= 0);
+ u_quotify(d, aftab[ix].name);
+ u_quotify(d, name);
+ u_quotify(d, serv);
}
} else if (strcmp(fmt, "?B64") == 0) {
const octet *p = va_arg(*ap, const octet *);
size_t n = va_arg(*ap, size_t);
- base64_ctx b64;
+ codec *b64 = base64_class.encoder(CDCF_NOEQPAD, "", 0);
dstr_putc(d, ' ');
- base64_init(&b64);
- b64.indent = "";
- b64.maxline = 0;
- base64_encode(&b64, p, n, d);
- base64_encode(&b64, 0, 0, d);
- while (d->len && d->buf[d->len - 1] == '=') d->len--;
+ b64->ops->code(b64, p, n, d);
+ b64->ops->code(b64, 0, 0, d);
+ b64->ops->destroy(b64);
} else if (strcmp(fmt, "?TOKENS") == 0) {
const char *const *av = va_arg(*ap, const char *const *);
while (*av) u_quotify(d, *av++);
va_end(ap);
}
-/* --- @a_ok@, @a_info@, @a_fail@ --- *
+/* --- @a_ok@, @a_fail@ --- *
*
* Arguments: @admin *a@ = connection
* @const char *fmt@ = format string
static void a_ok(admin *a) { a_write(a, "OK", 0, A_END); }
-static void a_info(admin *a, const char *fmt, ...)
+static void a_fail(admin *a, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
- a_vwrite(a, "INFO", 0, fmt, &ap);
+ a_vwrite(a, "FAIL", 0, fmt, &ap);
va_end(ap);
}
-static void a_fail(admin *a, const char *fmt, ...)
+/* --- @a_info@ --- *
+ *
+ * Arguments: @admin *a@ = connection
+ * @const char *fmt@ = format string
+ * @...@ = other arguments
+ *
+ * Returns: ---
+ *
+ * Use: Report information to an admin client.
+ */
+
+void a_info(admin *a, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
- a_vwrite(a, "FAIL", 0, fmt, &ap);
+ a_vwrite(a, "INFO", 0, fmt, &ap);
va_end(ap);
}
void a_quit(void)
{
close(sock.fd);
- unlink(sockname);
- FOREACH_PEER(p, { p_destroy(p); });
+ if (sockname) unlink(sockname);
+ FOREACH_PEER(p, { p_destroy(p, 1); });
ps_quit();
exit(0);
}
/*----- Name resolution operations ----------------------------------------*/
+#ifdef HAVE_LIBADNS
+
+/* --- @before_select@ --- *
+ *
+ * Arguments: @sel_state *s@ = the @sel@ multiplexor (unused)
+ * @sel_args *a@ = input to @select@, to be updated
+ * @void *p@ = a context pointer (unused)
+ *
+ * Returns: ---
+ *
+ * Use: An I/O multiplexor hook, called just before waiting for I/O
+ * events.
+ *
+ * Currently its main purpose is to wire ADNS into the event
+ * loop.
+ */
+
+static void before_select(sel_state *s, sel_args *a, void *p)
+{
+ struct timeval now;
+ adns_query q;
+ adns_answer *n;
+ admin_resop *r;
+ int any = 0;
+
+ /* --- Check for name-resolution progress --- *
+ *
+ * If there is any, then clobber the timeout: one of the resolver
+ * callbacks might have renewed its interest in a file descriptor, but too
+ * late to affect this @select@ call.
+ *
+ * I think, strictly, this is an mLib bug, but it's cheap enough to hack
+ * around here. Fixing it will wait for mLib 3.
+ */
+
+ for (;;) {
+ q = 0;
+ if (adns_check(ads, &q, &n, &p)) break;
+ r = p;
+ any = 1;
+ if (n->status != adns_s_ok) {
+ T( trace(T_ADMIN, "admin: resop %s failed: %s",
+ BGTAG(r), adns_strerror(n->status)); )
+ a_bgfail(&r->bg, "resolve-error", "%s", r->addr, A_END);
+ r->func(r, ARES_FAIL);
+ } else {
+ T( trace(T_ADMIN, "admin: resop %s ok", BGTAG(r)); )
+ assert(n->type == adns_r_addr);
+ assert(n->nrrs > 0);
+ assert(n->rrs.addr[0].len <= sizeof(r->sa));
+ memcpy(&r->sa, &n->rrs.addr[0].addr, n->rrs.addr[0].len);
+ setport(&r->sa, r->port);
+ r->func(r, ARES_OK);
+ }
+ free(n);
+ sel_rmtimer(&r->t);
+ xfree(r->addr);
+ a_bgrelease(&r->bg);
+ }
+
+ if (any) { a->tvp = &a->tv; a->tv.tv_sec = 0; a->tv.tv_usec = 0; }
+
+ gettimeofday(&now, 0);
+ adns_beforeselect(ads, &a->maxfd,
+ &a->fd[SEL_READ], &a->fd[SEL_WRITE], &a->fd[SEL_EXC],
+ &a->tvp, &a->tv, &now);
+}
+
+/* --- @after_select@ --- *
+ *
+ * Arguments: @sel_state *s@ = the @sel@ multiplexor (unused)
+ * @sel_args *a@ = input to @select@, to be updated
+ * @void *p@ = a context pointer (unused)
+ *
+ * Returns: ---
+ *
+ * Use: An I/O multiplexor hook, called just after waiting for I/O
+ * events.
+ *
+ * Currently its main purpose is to wire ADNS into the event
+ * loop.
+ */
+
+static void after_select(sel_state *s, sel_args *a, void *p)
+{
+ struct timeval now;
+
+ gettimeofday(&now, 0);
+ adns_afterselect(ads, a->maxfd,
+ &a->fd[SEL_READ], &a->fd[SEL_WRITE], &a->fd[SEL_EXC],
+ &now);
+}
+
+#else
+
/* --- @a_resolved@ --- *
*
* Arguments: @struct hostent *h@ = pointer to resolved hostname
{
admin_resop *r = v;
- T( trace(T_ADMIN, "admin: resop %s resolved", BGTAG(r)); )
QUICKRAND;
if (!h) {
+ T( trace(T_ADMIN, "admin: resop %s failed: %s",
+ BGTAG(r), hstrerror(h_errno)); )
a_bgfail(&r->bg, "resolve-error", "%s", r->addr, A_END);
r->func(r, ARES_FAIL);
} else {
+ T( trace(T_ADMIN, "admin: resop %s ok", BGTAG(r)); )
+ r->sa.sin.sin_family = AF_INET;
memcpy(&r->sa.sin.sin_addr, h->h_addr, sizeof(struct in_addr));
+ setport(&r->sa, r->port);
r->func(r, ARES_OK);
}
sel_rmtimer(&r->t);
a_bgrelease(&r->bg);
}
+#endif
+
/* --- @a_restimer@ --- *
*
* Arguments: @struct timeval *tv@ = timer
T( trace(T_ADMIN, "admin: resop %s timeout", BGTAG(r)); )
a_bgfail(&r->bg, "resolver-timeout", "%s", r->addr, A_END);
r->func(r, ARES_FAIL);
+#ifdef HAVE_LIBADNS
+ adns_cancel(r->q);
+#else
bres_abort(&r->r);
+#endif
xfree(r->addr);
a_bgrelease(&r->bg);
}
r->func(r, ARES_FAIL);
sel_rmtimer(&r->t);
xfree(r->addr);
+#ifdef HAVE_LIBADNS
+ adns_cancel(r->q);
+#else
bres_abort(&r->r);
+#endif
}
/* --- @a_resolve@ --- *
{
struct timeval tv;
unsigned long pt;
+ int af = AF_UNSPEC;
+ const char *fam = "ANY";
char *p;
- int i = 0;
+ int i = 0, j;
+ struct addrinfo *ai, *ailist, aihint = { 0 };
+#ifdef HAVE_LIBADNS
+ int err;
+ adns_queryflags qf;
+#endif
/* --- Fill in the easy bits of address --- */
r->bg.tag = "<starting>";
r->addr = 0;
r->func = func;
- if (mystrieq(av[i], "inet")) i++;
+ if (mystrieq(av[i], "any"))
+ { fam = "ANY"; af = AF_UNSPEC; i++; }
+ else for (j = 0; j < NADDRFAM; j++) {
+ if (mystrieq(av[i], aftab[j].name)) {
+ if (udpsock[j].sf.fd < 0) {
+ a_fail(a, "disabled-address-family", "%s", aftab[j].name, A_END);
+ goto fail;
+ }
+ fam = aftab[j].name;
+ af = aftab[j].af;
+ i++;
+ break;
+ }
+ }
if (ac - i != 1 && ac - i != 2) {
- a_fail(a, "bad-addr-syntax", "[inet] ADDRESS [PORT]", A_END);
+ a_fail(a, "bad-addr-syntax", "[FAMILY] ADDRESS [PORT]", A_END);
goto fail;
}
- r->sa.sin.sin_family = AF_INET;
- r->sasz = sizeof(r->sa.sin);
r->addr = xstrdup(av[i]);
if (!av[i + 1])
pt = TRIPE_PORT;
a_fail(a, "invalid-port", "%lu", pt, A_END);
goto fail;
}
- r->sa.sin.sin_port = htons(pt);
+ r->port = pt;
/* --- Report backgrounding --- *
*
if (a_bgadd(a, &r->bg, tag, a_rescancel))
goto fail;
- T( trace(T_ADMIN, "admin: %u, resop %s, hostname `%s'",
- a->seq, BGTAG(r), r->addr); )
+ T( trace(T_ADMIN, "admin: %u, resop %s, hostname `%s', family `%s'",
+ a->seq, BGTAG(r), r->addr, fam); )
/* --- If the name is numeric, do it the easy way --- */
- if (inet_aton(av[i], &r->sa.sin.sin_addr)) {
- T( trace(T_ADMIN, "admin: resop %s done the easy way", BGTAG(r)); )
- func(r, ARES_OK);
+ aihint.ai_family = af;
+ aihint.ai_socktype = SOCK_DGRAM;
+ aihint.ai_protocol = IPPROTO_UDP;
+ aihint.ai_flags = AI_NUMERICHOST;
+ if (!getaddrinfo(av[i], 0, &aihint, &ailist)) {
+ for (ai = ailist; ai; ai = ai->ai_next) {
+ if ((j = afix(ai->ai_family)) >= 0 && udpsock[j].sf.fd >= 0)
+ break;
+ }
+ if (!ai) {
+ T( trace(T_ADMIN, "admin: resop %s failed: "
+ "no suitable addresses returned", BGTAG(r)); )
+ a_bgfail(&r->bg, "resolve-error", "%s" , r->addr, A_END);
+ func(r, ARES_FAIL);
+ } else {
+ T( trace(T_ADMIN, "admin: resop %s done the easy way", BGTAG(r)); )
+ assert(ai->ai_addrlen <= sizeof(r->sa));
+ memcpy(&r->sa, ai->ai_addr, ai->ai_addrlen);
+ setport(&r->sa, r->port);
+ func(r, ARES_OK);
+ }
+ freeaddrinfo(ailist);
xfree(r->addr);
a_bgrelease(&r->bg);
return;
gettimeofday(&tv, 0);
tv.tv_sec += T_RESOLVE;
sel_addtimer(&sel, &r->t, &tv, a_restimer, r);
+#ifdef HAVE_LIBADNS
+ qf = adns_qf_search;
+ for (j = 0; j < NADDRFAM; j++) {
+ if ((af == AF_UNSPEC || af == aftab[i].af) && udpsock[j].sf.fd >= 0)
+ qf |= aftab[j].qf;
+ }
+ if ((err = adns_submit(ads, r->addr, adns_r_addr, qf, r, &r->q)) != 0) {
+ T( trace(T_ADMIN, "admin: resop %s adns_submit failed: %s",
+ BGTAG(r), strerror(err)); )
+ a_bgfail(&r->bg, "resolve-error", "%s", r->addr, A_END);
+ goto fail_release;
+ }
+#else
+ if (af != AF_UNSPEC && af != AF_INET) {
+ T( trace(T_ADMIN, "admin: resop %s failed: unsupported address family",
+ BGTAG(r)); )
+ a_bgfail(&r->bg, "resolve-error", "%s", r->addr, A_END);
+ goto fail_release;
+ }
+ if (udpsock[AFIX_INET].sf.fd < 0) {
+ a_bgfail(&r->bg, "disabled-address-family", "INET", A_END);
+ goto fail_release;
+ }
bres_byname(&r->r, r->addr, a_resolved, r);
+#endif
return;
fail:
func(r, ARES_FAIL);
if (r->addr) xfree(r->addr);
xfree(r);
+ return;
+
+fail_release:
+ func(r, ARES_FAIL);
+ xfree(r->addr);
+ a_bgrelease(&r->bg);
}
/*----- Option parsing ----------------------------------------------------*/
T( trace(T_ADMIN, "admin: done add op %s", BGTAG(add)); )
if (rc == ARES_OK) {
- add->peer.sasz = add->r.sasz;
add->peer.sa = add->r.sa;
if (p_findbyaddr(&add->r.sa))
a_bgfail(&add->r.bg, "peer-addr-exists", "?ADDR", &add->r.sa, A_END);
}
if (add->peer.tag) xfree(add->peer.tag);
+ if (add->peer.privtag) xfree(add->peer.privtag);
+ if (add->peer.knock) xfree(add->peer.knock);
xfree(add->peer.name);
}
add->peer.name = 0;
add->peer.tag = 0;
add->peer.privtag = 0;
+ add->peer.knock = 0;
add->peer.t_ka = 0;
add->peer.tops = tun_default;
add->peer.f = 0;
})
OPTTIME("-keepalive", t, { add->peer.t_ka = t; })
OPT("-cork", { add->peer.f |= KXF_CORK; })
+ OPT("-ephemeral", { add->peer.f |= PSF_EPHEM; })
OPTARG("-key", arg, {
- if (add->peer.tag)
- xfree(add->peer.tag);
+ if (add->peer.tag) xfree(add->peer.tag);
add->peer.tag = xstrdup(arg);
})
- OPT("-mobile", { add->peer.f |= PSF_MOBILE; })
+ OPT("-mobile", { add->peer.f |= PSF_MOBILE | PSF_EPHEM; })
OPTARG("-priv", arg, {
- if (add->peer.privtag)
- xfree(add->peer.privtag);
+ if (add->peer.privtag) xfree(add->peer.privtag);
add->peer.privtag = xstrdup(arg);
})
+ OPTARG("-knock", arg, {
+ if (add->peer.knock) xfree(add->peer.knock);
+ add->peer.knock = xstrdup(arg);
+ add->peer.f |= PSF_EPHEM;
+ })
});
/* --- Make sure someone's not got there already --- */
if (add->peer.name) xfree(add->peer.name);
if (add->peer.tag) xfree(add->peer.tag);
if (add->peer.privtag) xfree(add->peer.privtag);
+ if (add->peer.knock) xfree(add->peer.knock);
xfree(add);
return;
}
{ alertcmd(a, AF_WARN, AF_WARN, "WARN", av); }
static void acmd_port(admin *a, unsigned ac, char *av[])
- { a_info(a, "%u", p_port(), A_END); a_ok(a); }
+{
+ int i;
+
+ if (ac) {
+ for (i = 0; i < NADDRFAM; i++)
+ if (mystrieq(av[0], aftab[i].name)) goto found;
+ a_fail(a, "unknown-address-family", "%s", av[0], A_END);
+ return;
+ found:
+ if (udpsock[i].sf.fd < 0) {
+ a_fail(a, "disabled-address-family", "%s", aftab[i].name, A_END);
+ return;
+ }
+ } else {
+ for (i = 0; i < NADDRFAM; i++)
+ if (udpsock[i].sf.fd >= 0) goto found;
+ abort();
+ }
+ a_info(a, "%u", udpsock[i].port, A_END);
+ a_ok(a);
+}
static void acmd_daemon(admin *a, unsigned ac, char *av[])
{
{
peer *p;
const kdata *kd;
- const group *g;
+ const dhgrp *g;
const algswitch *algs;
if (!ac)
if ((p = a_findpeer(a, av[0])) == 0) return;
kd = p->kx.kpriv;
}
- g = kd->g;
+ g = kd->grp;
algs = &kd->algs;
- a_info(a,
- "kx-group=%s", g->ops->name,
- "kx-group-order-bits=%lu", (unsigned long)mp_bits(g->r),
- "kx-group-elt-bits=%lu", (unsigned long)g->nbits,
- A_END);
+ g->ops->grpinfo(g, a);
a_info(a,
"hash=%s", algs->h->name,
"mgf=%s", algs->mgf->name,
"hash-sz=%lu", (unsigned long)algs->h->hashsz,
A_END);
a_info(a,
- "bulk-transform=%s", algs->bulk->name,
- "bulk-overhead=%lu", (unsigned long)algs->bulk->overhead(algs),
+ "bulk-transform=%s", algs->bulk->ops->name,
+ "bulk-overhead=%lu",
+ (unsigned long)algs->bulk->ops->overhead(algs->bulk),
A_END);
- if (algs->c) {
- a_info(a,
- "cipher=%s", algs->c->name,
- "cipher-keysz=%lu", (unsigned long)algs->cksz,
- "cipher-blksz=%lu", (unsigned long)algs->c->blksz,
- A_END);
- }
+ algs->bulk->ops->alginfo(algs->bulk, a);
a_info(a,
- "cipher-data-limit=%lu", (unsigned long)algs->expsz,
+ "cipher-data-limit=%lu",
+ (unsigned long)algs->bulk->ops->expsz(algs->bulk),
A_END);
- if (algs->m) {
- a_info(a,
- "mac=%s", algs->m->name,
- "mac-keysz=%lu", (unsigned long)algs->mksz,
- "mac-tagsz=%lu", (unsigned long)algs->tagsz,
- A_END);
- }
- if (algs->b) {
- a_info(a,
- "blkc=%.*s", strlen(algs->b->name) - 4, algs->b->name,
- "blkc-keysz=%lu", (unsigned long)algs->bksz,
- "blkc-blksz=%lu", (unsigned long)algs->b->blksz,
- A_END);
- }
a_ok(a);
}
buf b;
buf_init(&b, buf_i, PKBUFSZ);
- c_new(&b);
+ c_new(0, 0, &b);
a_info(a, "?B64", BBASE(&b), (size_t)BLEN(&b), A_END);
a_ok(a);
}
static void acmd_checkchal(admin *a, unsigned ac, char *av[])
{
- base64_ctx b64;
+ codec *b64 = base64_class.decoder(CDCF_NOEQPAD);
+ int err;
buf b;
dstr d = DSTR_INIT;
- base64_init(&b64);
- base64_decode(&b64, av[0], strlen(av[0]), &d);
- base64_decode(&b64, 0, 0, &d);
- buf_init(&b, d.buf, d.len);
- if (c_check(&b) || BBAD(&b) || BLEFT(&b))
- a_fail(a, "invalid-challenge", A_END);
- else
- a_ok(a);
+ if ((err = b64->ops->code(b64, av[0], strlen(av[0]), &d)) != 0 ||
+ (err = b64->ops->code(b64, 0, 0, &d)) != 0)
+ a_fail(a, "bad-base64", "%s", codec_strerror(err), A_END);
+ else {
+ buf_init(&b, d.buf, d.len);
+ if (c_check(0, 0, &b) || BBAD(&b) || BLEFT(&b))
+ a_fail(a, "invalid-challenge", A_END);
+ else
+ a_ok(a);
+ }
+ b64->ops->destroy(b64);
dstr_destroy(&d);
}
static void acmd_greet(admin *a, unsigned ac, char *av[])
{
peer *p;
- base64_ctx b64;
+ int err;
+ codec *b64;
dstr d = DSTR_INIT;
- if ((p = a_findpeer(a, av[0])) != 0) {
- base64_init(&b64);
- base64_decode(&b64, av[1], strlen(av[1]), &d);
- base64_decode(&b64, 0, 0, &d);
+ if ((p = a_findpeer(a, av[0])) == 0) return;
+ b64 = base64_class.decoder(CDCF_NOEQPAD);
+ if ((err = b64->ops->code(b64, av[1], strlen(av[1]), &d)) != 0 ||
+ (err = b64->ops->code(b64, 0, 0, &d)) != 0)
+ a_fail(a, "bad-base64", "%s", codec_strerror(err), A_END);
+ else {
p_greet(p, d.buf, d.len);
- dstr_destroy(&d);
a_ok(a);
}
+ b64->ops->destroy(b64);
+ dstr_destroy(&d);
}
static void acmd_addr(admin *a, unsigned ac, char *av[])
if ((p = a_findpeer(a, av[0])) != 0) {
ad = p_addr(p);
- assert(ad->sa.sa_family == AF_INET);
a_info(a, "?ADDR", ad, A_END);
a_ok(a);
}
if ((p = a_findpeer(a, av[0])) != 0) {
ps = p_spec(p);
a_info(a, "tunnel=%s", ps->tops->name, A_END);
+ if (ps->knock) a_info(a, "knock=%s", ps->knock, A_END);
a_info(a, "key=%s", p_tag(p),
"current-key=%s", p->kx.kpub->tag, A_END);
if ((ptag = p_privtag(p)) == 0) ptag = "(default)";
a_info(a, "private-key=%s", ptag,
"current-private-key=%s", p->kx.kpriv->tag, A_END);
a_info(a, "keepalive=%lu", ps->t_ka, A_END);
+ a_info(a, "corked=%s", BOOL(p->kx.f&KXF_CORK),
+ "mobile=%s", BOOL(ps->f&PSF_MOBILE),
+ "ephemeral=%s", BOOL(ps->f&PSF_EPHEM),
+ A_END);
a_ok(a);
}
}
peer *p;
if ((p = a_findpeer(a, av[0])) != 0) {
- p_destroy(p);
+ p_destroy(p, 1);
a_ok(a);
}
}
{ "notify", "MESSAGE ...", 1, 0xffff, acmd_notify },
{ "peerinfo", "PEER", 1, 1, acmd_peerinfo },
{ "ping", "[OPTIONS] PEER", 1, 0xffff, acmd_ping },
- { "port", 0, 0, 0, acmd_port },
+ { "port", "[FAMILY]", 0, 1, acmd_port },
{ "quit", 0, 0, 0, acmd_quit },
{ "reload", 0, 0, 0, acmd_reload },
{ "servinfo", 0, 0, 0, acmd_servinfo },
{ "setifname", "PEER NEW-NAME", 2, 2, acmd_setifname },
+ { "stats", "PEER", 1, 1, acmd_stats },
{ "svcclaim", "SERVICE VERSION", 2, 2, acmd_svcclaim },
{ "svcensure", "SERVICE [VERSION]", 1, 2, acmd_svcensure },
{ "svcfail", "JOBID TOKENS...", 1, 0xffff, acmd_svcfail },
{ "svcrelease", "SERVICE", 1, 1, acmd_svcrelease },
{ "svcsubmit", "[OPTIONS] SERVICE TOKENS...",
2, 0xffff, acmd_svcsubmit },
- { "stats", "PEER", 1, 1, acmd_stats },
#ifndef NTRACE
{ "trace", "[OPTIONS]", 0, 1, acmd_trace },
#endif
*
* Returns: ---
*
- * Use: Creates a new admin connection.
+ * Use: Creates a new admin connection. It's safe to call this
+ * before @a_init@ -- and, indeed, this makes sense if you also
+ * call @a_switcherr@ to report initialization errors through
+ * the administration machinery.
*/
void a_create(int fd_in, int fd_out, unsigned f)
void a_daemon(void) { flags |= F_DAEMON; }
-/* --- @a_init@ --- *
+/* --- @a_listen@ --- *
*
* Arguments: @const char *name@ = socket name to create
* @uid_t u@ = user to own the socket
* Use: Creates the admin listening socket.
*/
-void a_init(const char *name, uid_t u, gid_t g, mode_t m)
+void a_listen(const char *name, uid_t u, gid_t g, mode_t m)
{
int fd;
int n = 5;
struct sockaddr_un sun;
- struct sigaction sa;
size_t sz;
mode_t omask;
- /* --- Create services table --- */
-
- sym_create(&a_svcs);
-
/* --- Set up the socket address --- */
sz = strlen(name) + 1;
sel_initfile(&sel, &sock, fd, SEL_READ, a_accept, 0);
sel_addfile(&sock);
sockname = name;
- bres_init(&sel);
+}
+
+/* --- @a_switcherr@ --- *
+ *
+ * Arguments: ---
+ *
+ * Returns: ---
+ *
+ * Use: Arrange to report warnings, trace messages, etc. to
+ * administration clients rather than the standard-error stream.
+ *
+ * Obviously this makes no sense unless there is at least one
+ * client established. Calling @a_listen@ won't help with this,
+ * because the earliest a new client can connect is during the
+ * first select-loop iteration, which is too late: some initial
+ * client must have been added manually using @a_create@.
+ */
+
+void a_switcherr(void)
+{
T( trace_custom(a_trace, 0);
trace(T_ADMIN, "admin: enabled custom tracing"); )
flags |= F_INIT;
+}
- /* --- Set up signal handlers --- */
+/* --- @a_signals@ --- *
+ *
+ * Arguments: ---
+ *
+ * Returns: ---
+ *
+ * Use: Establishes handlers for the obvious signals.
+ */
+
+void a_signals(void)
+{
+ struct sigaction sa;
sig_add(&s_term, SIGTERM, a_sigdie, 0);
sig_add(&s_hup, SIGHUP, a_sighup, 0);
- signal(SIGPIPE, SIG_IGN);
sigaction(SIGINT, 0, &sa);
if (sa.sa_handler != SIG_IGN)
sig_add(&s_int, SIGINT, a_sigdie, 0);
}
+/* --- @a_init@ --- *
+ *
+ * Arguments: ---
+ *
+ * Returns: ---
+ *
+ * Use: Creates the admin listening socket.
+ */
+
+void a_init(void)
+{
+#ifdef HAVE_LIBADNS
+ int err;
+#endif
+
+ /* --- Create services table --- */
+
+ sym_create(&a_svcs);
+
+ /* --- Prepare the background name resolver --- */
+
+#ifdef HAVE_LIBADNS
+ if ((err = adns_init(&ads,
+ (adns_if_permit_ipv4 | adns_if_permit_ipv6 |
+ adns_if_noserverwarn | adns_if_nosigpipe |
+ adns_if_noautosys),
+ 0)) != 0)
+ die(EXIT_FAILURE, "failed to initialize ADNS: %s", strerror(errno));
+ sel_addhook(&sel, &hook, before_select, after_select, 0);
+#else
+ bres_init(&sel);
+#endif
+}
+
/*----- That's all, folks -------------------------------------------------*/
~mdw / tripe / blobdiff