Add notion of `ephemeral' associations and a goodbye protocol.

[tripe] / server / admin.c

diff --git a/server/admin.c b/server/admin.c
index 3774da0..54883af 100644 (file)
--- a/server/admin.c
+++ b/server/admin.c
@@ -551,7 +551,7 @@ void a_quit(void)
 {
   close(sock.fd);
   unlink(sockname);
-  FOREACH_PEER(p, { p_destroy(p); });
+  FOREACH_PEER(p, { p_destroy(p, 1); });
   ps_quit();
   exit(0);
 }
@@ -1110,7 +1110,6 @@ static void a_resolve(admin *a, admin_resop *r, const char *tag,
     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;
@@ -1223,7 +1222,6 @@ static void a_doadd(admin_resop *r, int rc)
   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);
@@ -1237,6 +1235,7 @@ static void a_doadd(admin_resop *r, int rc)
 
   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);
 }
 
@@ -1262,6 +1261,7 @@ static void acmd_add(admin *a, unsigned ac, char *av[])
   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;
@@ -1285,17 +1285,21 @@ static void acmd_add(admin *a, unsigned ac, char *av[])
     })
     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 --- */
@@ -1322,6 +1326,7 @@ fail:
   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;
 }
@@ -1780,7 +1785,7 @@ static void acmd_getchal(admin *a, unsigned ac, char *av[])
   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);
 }
@@ -1797,7 +1802,7 @@ static void acmd_checkchal(admin *a, unsigned ac, char *av[])
     a_fail(a, "bad-base64", "%s", codec_strerror(err), A_END);
   else {
     buf_init(&b, d.buf, d.len);
-    if (c_check(&b) || BBAD(&b) || BLEFT(&b))
+    if (c_check(0, 0, &b) || BBAD(&b) || BLEFT(&b))
       a_fail(a, "invalid-challenge", A_END);
     else
       a_ok(a);
@@ -1848,12 +1853,17 @@ static void acmd_peerinfo(admin *a, unsigned ac, char *av[])
   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);
   }
 }
@@ -1908,7 +1918,7 @@ static void acmd_kill(admin *a, unsigned ac, char *av[])
   peer *p;
 
   if ((p = a_findpeer(a, av[0])) != 0) {
-    p_destroy(p);
+    p_destroy(p, 1);
     a_ok(a);
   }
 }
@@ -1983,6 +1993,7 @@ static const acmd acmdtab[] = {
   { "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 },
@@ -1993,7 +2004,6 @@ static const acmd acmdtab[] = {
   { "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
@@ -2362,7 +2372,6 @@ again:
 
   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);