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Diffstat (limited to 'src/pluto/rcv_whack.c')
-rw-r--r--src/pluto/rcv_whack.c728
1 files changed, 0 insertions, 728 deletions
diff --git a/src/pluto/rcv_whack.c b/src/pluto/rcv_whack.c
deleted file mode 100644
index 0a7b33ab5..000000000
--- a/src/pluto/rcv_whack.c
+++ /dev/null
@@ -1,728 +0,0 @@
-/* whack communicating routines
- * Copyright (C) 1997 Angelos D. Keromytis.
- * Copyright (C) 1998-2001 D. Hugh Redelmeier.
- *
- * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program 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.
- */
-
-#include <stdio.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <resolv.h>
-#include <arpa/nameser.h> /* missing from <resolv.h> on old systems */
-#include <sys/queue.h>
-#include <fcntl.h>
-
-#include <freeswan.h>
-
-#include "constants.h"
-#include "defs.h"
-#include "ca.h"
-#include "certs.h"
-#include "ac.h"
-#include "smartcard.h"
-#include "connections.h"
-#include "foodgroups.h"
-#include "whack.h" /* needs connections.h */
-#include "packet.h"
-#include "demux.h" /* needs packet.h */
-#include "state.h"
-#include "ipsec_doi.h" /* needs demux.h and state.h */
-#include "kernel.h"
-#include "rcv_whack.h"
-#include "log.h"
-#include "keys.h"
-#include "adns.h" /* needs <resolv.h> */
-#include "dnskey.h" /* needs keys.h and adns.h */
-#include "server.h"
-#include "fetch.h"
-#include "ocsp.h"
-#include "crl.h"
-#include "myid.h"
-#include "kernel_alg.h"
-#include "ike_alg.h"
-#include "plugin_list.h"
-#include "whack_attribute.h"
-
-/* helper variables and function to decode strings from whack message */
-
-static char *next_str
- , *str_roof;
-
-static bool unpack_str(char **p)
-{
- char *end = memchr(next_str, '\0', str_roof - next_str);
-
- if (end == NULL)
- {
- return FALSE; /* fishy: no end found */
- }
- else
- {
- *p = next_str == end? NULL : next_str;
- next_str = end + 1;
- return TRUE;
- }
-}
-
-/* bits loading keys from asynchronous DNS */
-
-enum key_add_attempt {
- ka_TXT,
-#ifdef USE_KEYRR
- ka_KEY,
-#endif
- ka_roof /* largest value + 1 */
-};
-
-struct key_add_common {
- int refCount;
- char *diag[ka_roof];
- int whack_fd;
- bool success;
-};
-
-struct key_add_continuation {
- struct adns_continuation ac; /* common prefix */
- struct key_add_common *common; /* common data */
- enum key_add_attempt lookingfor;
-};
-
-static void key_add_ugh(identification_t *keyid, err_t ugh)
-{
- loglog(RC_NOKEY, "failure to fetch key for %'Y' from DNS: %s", keyid, ugh);
-}
-
-/* last one out: turn out the lights */
-static void key_add_merge(struct key_add_common *oc, identification_t *keyid)
-{
- if (oc->refCount == 0)
- {
- enum key_add_attempt kaa;
-
- /* if no success, print all diagnostics */
- if (!oc->success)
- {
- for (kaa = ka_TXT; kaa != ka_roof; kaa++)
- {
- key_add_ugh(keyid, oc->diag[kaa]);
- }
- }
- for (kaa = ka_TXT; kaa != ka_roof; kaa++)
- {
- free(oc->diag[kaa]);
- }
- close(oc->whack_fd);
- free(oc);
- }
-}
-
-#ifdef ADNS
-
-static void key_add_continue(struct adns_continuation *ac, err_t ugh)
-{
- struct key_add_continuation *kc = (void *) ac;
- struct key_add_common *oc = kc->common;
-
- passert(whack_log_fd == NULL_FD);
- whack_log_fd = oc->whack_fd;
-
- if (ugh != NULL)
- {
- oc->diag[kc->lookingfor] = clone_str(ugh);
- }
- else
- {
- oc->success = TRUE;
- transfer_to_public_keys(kc->ac.gateways_from_dns
-#ifdef USE_KEYRR
- , &kc->ac.keys_from_dns
-#endif /* USE_KEYRR */
- );
- }
-
- oc->refCount--;
- key_add_merge(oc, ac->id);
- whack_log_fd = NULL_FD;
-}
-
-#endif /* ADNS */
-
-static void key_add_request(const whack_message_t *msg)
-{
- identification_t *key_id;
-
- key_id = identification_create_from_string(msg->keyid);
-
- if (!msg->whack_addkey)
- {
- delete_public_keys(key_id, msg->pubkey_alg, NULL, chunk_empty);
- }
- if (msg->keyval.len == 0)
- {
- struct key_add_common *oc = malloc_thing(struct key_add_common);
- enum key_add_attempt kaa;
- err_t ugh;
-
- /* initialize state shared by queries */
- oc->refCount = 0;
- oc->whack_fd = dup_any(whack_log_fd);
- oc->success = FALSE;
-
- for (kaa = ka_TXT; kaa != ka_roof; kaa++)
- {
- struct key_add_continuation *kc;
-
- oc->diag[kaa] = NULL;
- oc->refCount++;
- kc = malloc_thing(struct key_add_continuation);
- kc->common = oc;
- kc->lookingfor = kaa;
- ugh = NULL;
-
- switch (kaa)
- {
-#ifdef ADNS
- case ka_TXT:
- ugh = start_adns_query(key_id
- , key_id /* same */
- , T_TXT
- , key_add_continue
- , &kc->ac);
- break;
-#endif /* ADNS */
-#ifdef USE_KEYRR
- case ka_KEY:
- ugh = start_adns_query(key_id
- , NULL
- , T_KEY
- , key_add_continue
- , &kc->ac);
- break;
-#endif /* USE_KEYRR */
- default:
- bad_case(kaa); /* suppress gcc warning */
- }
- if (ugh)
- {
- oc->diag[kaa] = clone_str(ugh);
- oc->refCount--;
- }
- }
-
- /* Done launching queries. Handle total failure case. */
- key_add_merge(oc, key_id);
- }
- else
- {
- if (!add_public_key(key_id, DAL_LOCAL, msg->pubkey_alg, msg->keyval,
- &pubkeys))
- {
- loglog(RC_LOG_SERIOUS, "failed to add public key");
- }
- }
- key_id->destroy(key_id);
-}
-
-/* Handle a kernel request. Supposedly, there's a message in
- * the kernelsock socket.
- */
-void whack_handle(int whackctlfd)
-{
- whack_message_t msg;
- struct sockaddr_un whackaddr;
- int whackaddrlen = sizeof(whackaddr);
- int whackfd = accept(whackctlfd, (struct sockaddr *)&whackaddr, &whackaddrlen);
- /* Note: actual value in n should fit in int. To print, cast to int. */
- ssize_t n;
-
- if (whackfd < 0)
- {
- log_errno((e, "accept() failed in whack_handle()"));
- return;
- }
- if (fcntl(whackfd, F_SETFD, FD_CLOEXEC) < 0)
- {
- log_errno((e, "failed to set CLOEXEC in whack_handle()"));
- close(whackfd);
- return;
- }
-
- n = read(whackfd, &msg, sizeof(msg));
-
- if (n == -1)
- {
- log_errno((e, "read() failed in whack_handle()"));
- close(whackfd);
- return;
- }
-
- whack_log_fd = whackfd;
-
- /* sanity check message */
- {
- err_t ugh = NULL;
-
- next_str = msg.string;
- str_roof = (char *)&msg + n;
-
- if ((size_t)n < offsetof(whack_message_t, whack_shutdown) + sizeof(msg.whack_shutdown))
- {
- ugh = builddiag("ignoring runt message from whack: got %d bytes", (int)n);
- }
- else if (msg.magic != WHACK_MAGIC)
- {
- if (msg.magic == WHACK_BASIC_MAGIC)
- {
- /* Only shutdown command. Simpler inter-version compatibility. */
- if (msg.whack_shutdown)
- {
- plog("shutting down");
- exit_pluto(0); /* delete lock and leave, with 0 status */
- }
- ugh = ""; /* bail early, but without complaint */
- }
- else
- {
- ugh = builddiag("ignoring message from whack with bad magic %d; should be %d; probably wrong version"
- , msg.magic, WHACK_MAGIC);
- }
- }
- else if (next_str > str_roof)
- {
- ugh = builddiag("ignoring truncated message from whack: got %d bytes; expected %u"
- , (int) n, (unsigned) sizeof(msg));
- }
- else if (!unpack_str(&msg.name) /* string 1 */
- || !unpack_str(&msg.left.id) /* string 2 */
- || !unpack_str(&msg.left.cert) /* string 3 */
- || !unpack_str(&msg.left.ca) /* string 4 */
- || !unpack_str(&msg.left.groups) /* string 5 */
- || !unpack_str(&msg.left.updown) /* string 6 */
- || !unpack_str(&msg.left.sourceip) /* string 7 */
- || !unpack_str(&msg.left.virt) /* string 8 */
- || !unpack_str(&msg.right.id) /* string 9 */
- || !unpack_str(&msg.right.cert) /* string 10 */
- || !unpack_str(&msg.right.ca) /* string 11 */
- || !unpack_str(&msg.right.groups) /* string 12 */
- || !unpack_str(&msg.right.updown) /* string 13 */
- || !unpack_str(&msg.right.sourceip) /* string 14 */
- || !unpack_str(&msg.right.virt) /* string 15 */
- || !unpack_str(&msg.keyid) /* string 16 */
- || !unpack_str(&msg.myid) /* string 17 */
- || !unpack_str(&msg.cacert) /* string 18 */
- || !unpack_str(&msg.ldaphost) /* string 19 */
- || !unpack_str(&msg.ldapbase) /* string 20 */
- || !unpack_str(&msg.crluri) /* string 21 */
- || !unpack_str(&msg.crluri2) /* string 22 */
- || !unpack_str(&msg.ocspuri) /* string 23 */
- || !unpack_str(&msg.ike) /* string 24 */
- || !unpack_str(&msg.esp) /* string 25 */
- || !unpack_str(&msg.sc_data) /* string 26 */
- || !unpack_str(&msg.whack_lease_ip) /* string 27 */
- || !unpack_str(&msg.whack_lease_id) /* string 28 */
- || !unpack_str(&msg.xauth_identity) /* string 29 */
- || str_roof - next_str != (ptrdiff_t)msg.keyval.len) /* check chunk */
- {
- ugh = "message from whack contains bad string";
- }
- else
- {
- msg.keyval.ptr = next_str; /* grab chunk */
- }
-
- if (ugh != NULL)
- {
- if (*ugh != '\0')
- loglog(RC_BADWHACKMESSAGE, "%s", ugh);
- whack_log_fd = NULL_FD;
- close(whackfd);
- return;
- }
- }
-
- if (msg.whack_options)
- {
-#ifdef DEBUG
- if (msg.name == NULL)
- {
- /* we do a two-step so that if either old or new would
- * cause the message to print, it will be printed.
- */
- cur_debugging |= msg.debugging;
- DBG(DBG_CONTROL
- , DBG_log("base debugging = %s"
- , bitnamesof(debug_bit_names, msg.debugging)));
- cur_debugging = base_debugging = msg.debugging;
- }
- else if (!msg.whack_connection)
- {
- connection_t *c = con_by_name(msg.name, TRUE);
-
- if (c != NULL)
- {
- c->extra_debugging = msg.debugging;
- DBG(DBG_CONTROL
- , DBG_log("\"%s\" extra_debugging = %s"
- , c->name
- , bitnamesof(debug_bit_names, c->extra_debugging)));
- }
- }
-#endif
- }
-
- if (msg.whack_myid)
- {
- set_myid(MYID_SPECIFIED, msg.myid);
- }
-
- /* Deleting combined with adding a connection works as replace.
- * To make this more useful, in only this combination,
- * delete will silently ignore the lack of the connection.
- */
- if (msg.whack_delete)
- {
- if (msg.whack_ca)
- {
- find_ca_info_by_name(msg.name, TRUE);
- }
- else
- {
- delete_connections_by_name(msg.name, !msg.whack_connection);
- }
- }
-
- if (msg.whack_deletestate)
- {
- struct state *st = state_with_serialno(msg.whack_deletestateno);
-
- if (st == NULL)
- {
- loglog(RC_UNKNOWN_NAME, "no state #%lu to delete"
- , msg.whack_deletestateno);
- }
- else
- {
- delete_state(st);
- }
- }
-
- if (msg.whack_crash)
- {
- delete_states_by_peer(&msg.whack_crash_peer);
- }
-
- if (msg.whack_connection)
- {
- add_connection(&msg);
- }
-
- if (msg.whack_ca && msg.cacert != NULL)
- {
- add_ca_info(&msg);
- }
-
- /* process "listen" before any operation that could require it */
- if (msg.whack_listen)
- {
- close_peerlog(); /* close any open per-peer logs */
- plog("listening for IKE messages");
- listening = TRUE;
- daily_log_reset();
-#ifdef ADNS
- reset_adns_restart_count();
-#endif
- set_myFQDN();
- find_ifaces();
- load_preshared_secrets(NULL_FD);
- load_groups();
- }
- if (msg.whack_unlisten)
- {
- plog("no longer listening for IKE messages");
- listening = FALSE;
- }
-
- if (msg.whack_reread & REREAD_SECRETS)
- {
- load_preshared_secrets(whackfd);
- }
-
- if (msg.whack_reread & REREAD_CACERTS)
- {
- load_authcerts("ca", CA_CERT_PATH, X509_CA);
- }
-
- if (msg.whack_reread & REREAD_AACERTS)
- {
- load_authcerts("aa", AA_CERT_PATH, X509_AA);
- }
-
- if (msg.whack_reread & REREAD_OCSPCERTS)
- {
- load_authcerts("ocsp", OCSP_CERT_PATH, X509_OCSP_SIGNER);
- }
-
- if (msg.whack_reread & REREAD_ACERTS)
- {
- ac_load_certs();
- }
-
- if (msg.whack_reread & REREAD_CRLS)
- {
- load_crls();
- }
-
- if (msg.whack_purgeocsp)
- {
- free_ocsp_fetch();
- free_ocsp_cache();
- }
-
- if (msg.whack_leases)
- {
- list_leases(msg.name, msg.whack_lease_ip, msg.whack_lease_id);
- }
-
- if (msg.whack_list & LIST_PUBKEYS)
- {
- list_public_keys(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_CERTS)
- {
- cert_list(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_CACERTS)
- {
- list_authcerts("CA", X509_CA, msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_AACERTS)
- {
- list_authcerts("AA", X509_AA, msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_OCSPCERTS)
- {
- list_authcerts("OCSP", X509_OCSP_SIGNER, msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_ACERTS)
- {
- ac_list_certs(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_CAINFOS)
- {
- list_ca_infos(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_CRLS)
- {
- list_crls(msg.whack_utc, strict_crl_policy);
- list_crl_fetch_requests(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_OCSP)
- {
- list_ocsp_cache(msg.whack_utc, strict_crl_policy);
- list_ocsp_fetch_requests(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_CARDS)
- {
- scx_list(msg.whack_utc);
- }
-
- if (msg.whack_list & LIST_ALGS)
- {
- ike_alg_list();
- kernel_alg_list();
- }
-
- if (msg.whack_list & LIST_PLUGINS)
- {
- plugin_list();
- }
-
- if (msg.whack_key)
- {
- /* add a public key */
- key_add_request(&msg);
- }
-
- if (msg.whack_route)
- {
- if (!listening)
- {
- whack_log(RC_DEAF, "need --listen before --route");
- }
- if (msg.name == NULL)
- {
- whack_log(RC_UNKNOWN_NAME
- , "whack --route requires a connection name");
- }
- else
- {
- connection_t *c = con_by_name(msg.name, TRUE);
-
- if (c != NULL && c->ikev1)
- {
- set_cur_connection(c);
- if (!oriented(*c))
- {
- whack_log(RC_ORIENT
- , "we have no ipsecN interface for either end of this connection");
- }
- else if (c->policy & POLICY_GROUP)
- {
- route_group(c);
- }
- else if (!trap_connection(c))
- {
- whack_log(RC_ROUTE, "could not route");
- }
- reset_cur_connection();
- }
- }
- }
-
- if (msg.whack_unroute)
- {
- if (msg.name == NULL)
- {
- whack_log(RC_UNKNOWN_NAME
- , "whack --unroute requires a connection name");
- }
- else
- {
- connection_t *c = con_by_name(msg.name, TRUE);
-
- if (c != NULL && c->ikev1)
- {
- struct spd_route *sr;
- int fail = 0;
-
- set_cur_connection(c);
-
- for (sr = &c->spd; sr != NULL; sr = sr->next)
- {
- if (sr->routing >= RT_ROUTED_TUNNEL)
- {
- fail++;
- }
- }
- if (fail > 0)
- {
- whack_log(RC_RTBUSY, "cannot unroute: route busy");
- }
- else if (c->policy & POLICY_GROUP)
- {
- unroute_group(c);
- }
- else
- {
- unroute_connection(c);
- }
- reset_cur_connection();
- }
- }
- }
-
- if (msg.whack_initiate)
- {
- if (!listening)
- {
- whack_log(RC_DEAF, "need --listen before --initiate");
- }
- else if (msg.name == NULL)
- {
- whack_log(RC_UNKNOWN_NAME
- , "whack --initiate requires a connection name");
- }
- else
- {
- initiate_connection(msg.name
- , msg.whack_async? NULL_FD : dup_any(whackfd));
- }
- }
-
- if (msg.whack_oppo_initiate)
- {
- if (!listening)
- {
- whack_log(RC_DEAF, "need --listen before opportunistic initiation");
- }
- else
- {
- initiate_opportunistic(&msg.oppo_my_client, &msg.oppo_peer_client, 0
- , FALSE
- , msg.whack_async? NULL_FD : dup_any(whackfd));
- }
- }
-
- if (msg.whack_terminate)
- {
- if (msg.name == NULL)
- {
- whack_log(RC_UNKNOWN_NAME
- , "whack --terminate requires a connection name");
- }
- else
- {
- terminate_connection(msg.name);
- }
- }
-
- if (msg.whack_status)
- {
- show_status(msg.whack_statusall, msg.name);
- }
-
- if (msg.whack_shutdown)
- {
- plog("shutting down");
- exit_pluto(0); /* delete lock and leave, with 0 status */
- }
-
- if (msg.whack_sc_op != SC_OP_NONE)
- {
- if (pkcs11_proxy)
- {
- scx_op_via_whack(msg.sc_data, msg.inbase, msg.outbase
- , msg.whack_sc_op, msg.keyid, whackfd);
- }
- else
- {
- plog("pkcs11 access to smartcard not allowed (set pkcs11proxy=yes)");
- }
- }
-
- whack_log_fd = NULL_FD;
- close(whackfd);
-}
-
-/*
- * Local Variables:
- * c-basic-offset:4
- * c-style: pluto
- * End:
- */
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