void free_proxy(struct proxy_l* p)
{
if (p) {
free_hostent(&p->host);
free_dns_res( p );
}
}
void free_winsock_thread_block(PWINSOCK_THREAD_BLOCK p)
{
if (p)
{
if (p->Hostent) { free_hostent(p->Hostent); p->Hostent = 0; }
if (p->Getservbyname){}
if (p->Getservbyport) {}
}
}
static int
hostent_read_snapshot_func(struct hostent *ht, char *line)
{
StringList *sl1, *sl2;;
char *s, *ps, *ts;
int i, rv;
if (debug)
printf("1 line read from snapshot:\n%s\n", line);
rv = 0;
i = 0;
sl1 = sl2 = NULL;
ps = line;
memset(ht, 0, sizeof(struct hostent));
while ( (s = strsep(&ps, " ")) != NULL) {
switch (i) {
case 0:
ht->h_name = strdup(s);
assert(ht->h_name != NULL);
break;
case 1:
ht->h_addrtype = (int)strtol(s, &ts, 10);
if (*ts != '\0')
goto fin;
break;
case 2:
ht->h_length = (int)strtol(s, &ts, 10);
if (*ts != '\0')
goto fin;
break;
case 3:
if (sl1 == NULL) {
if (strcmp(s, "(null)") == 0)
return (0);
sl1 = sl_init();
assert(sl1 != NULL);
if (strcmp(s, "noaliases") != 0) {
ts = strdup(s);
assert(ts != NULL);
sl_add(sl1, ts);
}
} else {
if (strcmp(s, ":") == 0)
++i;
else {
ts = strdup(s);
assert(ts != NULL);
sl_add(sl1, ts);
}
}
break;
case 4:
if (sl2 == NULL) {
if (strcmp(s, "(null)") == 0)
return (0);
sl2 = sl_init();
assert(sl2 != NULL);
if (strcmp(s, "noaddrs") != 0) {
ts = (char *)malloc(ht->h_length);
assert(ts != NULL);
memset(ts, 0, ht->h_length);
rv = hostent_read_snapshot_addr(s,\
(unsigned char *)ts, ht->h_length);
sl_add(sl2, ts);
if (rv != 0)
goto fin;
}
} else {
ts = (char *)malloc(ht->h_length);
assert(ts != NULL);
memset(ts, 0, ht->h_length);
rv = hostent_read_snapshot_addr(s,\
(unsigned char *)ts, ht->h_length);
sl_add(sl2, ts);
if (rv != 0)
goto fin;
}
break;
default:
break;
};
if ((i != 3) && (i != 4))
++i;
}
fin:
if (sl1 != NULL) {
sl_add(sl1, NULL);
ht->h_aliases = sl1->sl_str;
}
if (sl2 != NULL) {
sl_add(sl2, NULL);
ht->h_addr_list = sl2->sl_str;
}
if ((i != 4) || (rv != 0)) {
free_hostent(ht);
memset(ht, 0, sizeof(struct hostent));
return (-1);
}
/* NOTE: is it a dirty hack or not? */
free(sl1);
free(sl2);
return (0);
}
/**
* _remove - Delete an entire AOR entry or just one or more of its Contacts
* Parameter format: _remove(domain, AOR[, Contact URI or plain hostname])
*
* @udomain: (udomain_t *)
* @aor_gp: address-of-record as a SIP URI (plain string or pvar)
* @contact_gp: contact to be deleted or domain in front of multiple contacts
*
* @return: 1 on success, negative on failure
*/
int _remove(struct sip_msg *msg, char *udomain, char *aor_gp, char *contact_gp)
{
struct sip_uri puri;
struct hostent delete_he, *he;
urecord_t *record;
ucontact_t *contact, *it;
str uri, aor_user, delete_user = { NULL, 0 };
int err, count = 0;
int delete_by_hostname = 0;
unsigned short delete_port;
memset(&delete_he, 0, sizeof delete_he);
if (fixup_get_svalue(msg, (gparam_p)aor_gp, &uri) != 0) {
LM_ERR("failed to get gparam_t value\n");
return E_UNSPEC;
}
if (extract_aor( &uri, &aor_user,0,0) < 0) {
LM_ERR("failed to extract Address Of Record\n");
return E_BAD_URI;
}
ul.lock_udomain((udomain_t *)udomain, &aor_user);
if (ul.get_urecord((udomain_t *)udomain, &aor_user, &record) != 0) {
LM_DBG("no record '%.*s' found!\n", aor_user.len, aor_user.s);
err = 1;
goto out_unlock;
}
/* if no contact uri param is given, delete the whole urecord entry */
if (!contact_gp) {
if (ul.delete_urecord((udomain_t *)udomain, &aor_user, record, 0) != 0) {
LM_ERR("failed to delete urecord for aor '%.*s'\n",
aor_user.len, aor_user.s);
err = E_UNSPEC;
goto out_unlock;
}
err = 1;
goto out_unlock;
}
if (fixup_get_svalue(msg, (gparam_p)contact_gp, &uri) != 0) {
LM_ERR("failed to retrieve value of contact pv\n");
err = E_UNSPEC;
goto out_unlock;
}
/* minimum two-letters for the domain name */
if (uri.len < 5) {
LM_ERR("Invalid domain given: '%.*s'\n", uri.len, uri.s);
err = E_INVALID_PARAMS;
goto out_unlock;
}
/* a domain/IP address was given instead of a SIP contact URI */
if (uri.s[0] != 's' || uri.s[1] != 'i' ||
uri.s[2] != 'p' || (uri.s[3] != ':' &&
(uri.s[3] != 's' || uri.s[4] != ':'))) {
delete_by_hostname = 1;
he = sip_resolvehost(&uri, &delete_port, NULL, 0, NULL);
if (!he) {
LM_ERR("cannot resolve given host: '%.*s'\n", uri.len, uri.s);
err = E_UNSPEC;
goto out_unlock;
}
LM_DBG("Delete by host: '%s'\n",
inet_ntoa(*(struct in_addr *)(he->h_addr_list[0])));
} else {
LM_DBG("parsing uri: %.*s\n", uri.len, uri.s);
if (parse_uri(uri.s, uri.len, &puri) != 0) {
LM_ERR("failed to parse contact uri: '%.*s'\n",
uri.len, uri.s);
err = E_BAD_URI;
goto out_unlock;
}
delete_user = puri.user;
he = sip_resolvehost(&puri.host, &delete_port, &puri.proto, 0, NULL);
if (!he) {
LM_ERR("cannot resolve given uri: '%.*s'\n", uri.len, uri.s);
err = E_UNSPEC;
goto out_unlock;
}
if (puri.port_no > 0)
delete_port = puri.port_no;
LM_DBG("Delete by contact: [ User %.*s | Host %s | Port %d ]\n",
delete_user.len, delete_user.s,
inet_ntoa(*(struct in_addr *)(he->h_addr_list[0])),
delete_port);
}
if (hostent_cpy(&delete_he, he) != 0) {
LM_ERR("no more pkg mem\n");
err = E_OUT_OF_MEM;
goto out_unlock;
}
for (it = record->contacts; it; ) {
contact = it;
it = it->next;
count++;
LM_DBG("parsing contact uri '%.*s'\n", contact->c.len, contact->c.s);
if (parse_uri(contact->c.s, contact->c.len, &puri) != 0) {
LM_ERR("failed to parse contact uri: '%.*s'\n",
contact->c.len, contact->c.s);
err = E_BAD_URI;
goto out_unlock;
}
/* if necessary, solve the next_hop towards the contact */
he = sip_resolvehost(&contact->next_hop.name,
&contact->next_hop.port,
&contact->next_hop.proto, 0, NULL);
if (!he) {
LM_ERR("failed to resolve next hop of contact '%.*s'\n",
contact->c.len, contact->c.s);
continue;
}
LM_DBG("Contact: [ User %.*s | Host %s | Port %d ]\n",
puri.user.len, puri.user.s,
inet_ntoa(*(struct in_addr *)(he->h_addr_list[0])),
puri.port_no);
if (delete_by_hostname) {
if (!memcmp(delete_he.h_addr_list[0],
he->h_addr_list[0], he->h_length))
{
ul.delete_ucontact(record, contact, 0);
count--;
}
} else {
if (delete_user.len == puri.user.len &&
delete_port == puri.port_no &&
!memcmp(delete_he.h_addr_list[0],
he->h_addr_list[0], he->h_length)
&& !memcmp(delete_user.s, puri.user.s, puri.user.len))
{
ul.delete_ucontact(record, contact, 0);
count--;
}
}
}
err = 1;
/* remove the AOR if no more contacts are attached */
if (count == 0) {
if (ul.delete_urecord((udomain_t *)udomain, &aor_user, record, 0) != 0) {
LM_ERR("failed to delete urecord for aor '%.*s'\n",
aor_user.len, aor_user.s);
err = 1;
}
}
out_unlock:
ul.unlock_udomain((udomain_t *)udomain, &aor_user);
free_hostent(&delete_he);
return err;
}
void free_proxy(struct proxy_l* p)
{
if (p) free_hostent(&p->host);
}
canl_err_code
canl_io_connect(canl_ctx cc, canl_io_handler io, const char *host,
const char *service, int port, gss_OID_set auth_mechs,
int flags, canl_principal *peer, struct timeval *timeout)
{
int err = 0;
io_handler *io_cc = (io_handler*) io;
glb_ctx *glb_cc = (glb_ctx*) cc;
struct _asyn_result ar;
int i = 0, k;
int addr_types[] = {AF_INET, AF_INET6}; //TODO ip versions policy?
int ipver = AF_INET6;
int j = 0, done;
struct canl_mech *mech;
gss_OID oid;
memset(&ar, 0, sizeof(ar));
if (!glb_cc) {
return EINVAL;
}
if (!io_cc)
return set_error(glb_cc, EINVAL, POSIX_ERROR,
"IO handler not initialized");
done = 0;
for (k = 0; k < sizeof(addr_types)/sizeof(*addr_types); k++) {
ipver = addr_types[k];
if (ar.ent) {
free_hostent(ar.ent);
memset(&ar, 0, sizeof(ar));
}
ar.ent = (struct hostent *) calloc (1, sizeof(struct hostent));
if (ar.ent == NULL)
return set_error(cc, ENOMEM, POSIX_ERROR, "Not enough memory");
switch (err = canl_asyn_getservbyname(ipver, &ar, host, NULL)) {
case NETDB_SUCCESS:
err = 0;
break;
case TRY_AGAIN:
err = update_error(glb_cc, ETIMEDOUT, POSIX_ERROR,
" Timeout reached when connecting to (%s)", host);
goto end;
case NETDB_INTERNAL:
err = update_error(glb_cc, errno, POSIX_ERROR,
"Cannot resolve the server hostname (%s)", host);
continue;
default:
err = update_error(glb_cc, err, NETDB_ERROR,
"Cannot resolve the server hostname (%s)", host);
continue;
}
j = 0;
do {
if (auth_mechs == GSS_C_NO_OID_SET || auth_mechs->count == 0)
oid = GSS_C_NO_OID;
else
oid = &auth_mechs->elements[j];
mech = find_mech(oid);
err = 0;
for (i = 0; ar.ent->h_addr_list[i]; i++) {
void *ctx = NULL;
if (err == ETIMEDOUT)
goto end;
err = try_connect(glb_cc, io_cc, ar.ent->h_addr_list[i],
ar.ent->h_addrtype, port, timeout);//TODO timeout
if (err)
continue;
err = mech->client_init(glb_cc, &ctx);
if (err) {
canl_io_close(glb_cc, io_cc);
continue;
}
err = mech->connect(glb_cc, io_cc, ctx, timeout, host);
if (err) {
canl_io_close(glb_cc, io_cc);
mech->finish(glb_cc, ctx);
ctx = NULL;
continue;
}
io_cc->conn_ctx = ctx;
done = 1;
/* If peer != NULL then client certificate is mandatory*/
if (peer) {
err = mech->get_peer(glb_cc, io_cc, ctx, peer);
if (err)
goto end;
}
break;
}
if (err == ETIMEDOUT)
goto end;
j++;
} while (auth_mechs != GSS_C_NO_OID_SET && j < auth_mechs->count && !done);
free_hostent(ar.ent);
ar.ent = NULL;
if (done)
break;
}
if (!done) {
err = ECONNREFUSED;
goto end;
}
err = 0;
end:
if (err) /* XXX: rather invent own error */
err = update_error(glb_cc, ECONNREFUSED, POSIX_ERROR,
"Failed to make network connection to server %s", host);
if (ar.ent != NULL)
free_hostent(ar.ent);
return err;
}
int our_getaddrinfo(dead_pool *pool, const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res)
{
show_msg(MSGDEBUG, "our_getaddrinfo: ('%s' '%s') requested\n", node, service);
int pos;
struct in_addr addr;
char *ipstr;
int ret;
if (node == NULL)
return getaddrinfo(NULL, service, hints, res);
if (hints->ai_flags & AI_NUMERICHOST)
return getaddrinfo(node, service, hints, res);
/* If "node" looks like a dotted-decimal ip address, then just call
the real getaddrinfo; otherwise we'll need to get an address from
our pool. */
/* TODO: work out what to do with AF_INET6 requests */
#ifdef HAVE_INET_ATON
if(inet_aton(node, &addr) == 0) {
#elif defined(HAVE_INET_ADDR)
/* If we're stuck with inet_addr, then getaddrinfo() won't work
properly with 255.255.255.255 (= -1). There's not much we can
do about this */
in_addr_t is_valid;
is_valid = inet_addr(node);
if(is_valid == -1) {
#endif
pos = store_pool_entry(pool, (char *) node, &addr);
if(pos == -1) {
return EAI_NONAME;
} else {
ipstr = strdup(inet_ntoa(addr));
ret = getaddrinfo(ipstr, service, hints, res);
free(ipstr);
}
} else {
ret = getaddrinfo(node, service, hints, res);
}
return ret;
}
struct hostent * our_getipnodebyname(dead_pool *pool, const char *name, int af, int flags, int *error_num)
{
show_msg(MSGDEBUG, "our_getipnodebyname: '%s' requested\n", name);
int pos;
struct hostent *he = NULL;
int want_4in6 = 0;
char addr_convert_buf[80];
struct in_addr pool_addr;
if(af == AF_INET6) {
/* Caller has requested an AF_INET6 address, and is not prepared to
accept IPv4-mapped IPV6 addresses. There's nothing we can do to
service their request. */
if((flags & AI_V4MAPPED) == 0) {
show_msg(MSGWARN, "getipnodebyname: asked for V6 addresses only, "
"but tsocks can't handle that\n");
*error_num = NO_RECOVERY;
return NULL;
} else {
want_4in6 = 1;
}
}
pos = store_pool_entry(pool, (char *)name, &pool_addr);
if(pos == -1) {
*error_num = HOST_NOT_FOUND;
return NULL;
}
he = alloc_hostent(af);
if(he == NULL) {
show_msg(MSGERR, "getipnodebyname: failed to allocate hostent\n");
*error_num = NO_RECOVERY;
return NULL;
}
if(want_4in6) {
/* Convert the ipv4 address in *addr to an IPv4 in IPv6 mapped
address. TODO: inet_ntoa() is thread-safe on Solaris but might
not be on other platforms. */
strcpy(addr_convert_buf, "::FFFF:");
strcpy(addr_convert_buf+7, inet_ntoa(pool_addr));
if(inet_pton(AF_INET6, addr_convert_buf, he->h_addr_list[0]) != 1) {
show_msg(MSGERR, "getipnodebyname: inet_pton() failed!\n");
free_hostent(he);
*error_num = NO_RECOVERY;
return NULL;
}
} else {
((struct in_addr *) he->h_addr_list[0])->s_addr = pool_addr.s_addr;
}
he->h_name = strdup(name);
return he;
}
/**
* _remove - Delete an entire AOR entry or one or more of its Contacts
*
* @domain: logical domain name (usually name of location table)
* @aor_gp: address-of-record as a SIP URI (plain string or pvar)
* @contact_gp: contact URI to be deleted
* @next_hop_gp: IP/domain in front of contacts to be deleted
* @sip_instance_gp: delete contacts with given "+sip_instance"
*
* @return: 1 on success, negative on failure
*/
int _remove(struct sip_msg *msg, void *udomain, str *aor_uri, str *match_ct,
str *match_next_hop, str *match_sin)
{
struct hostent delete_nh_he, *he;
urecord_t *record;
ucontact_t *contact, *it;
str aor_user;
int ret = 1;
unsigned short delete_port = 0;
if (extract_aor(aor_uri, &aor_user, 0, 0) < 0) {
LM_ERR("failed to extract Address Of Record\n");
return E_BAD_URI;
}
ul.lock_udomain((udomain_t *)udomain, &aor_user);
if (ul.get_urecord((udomain_t *)udomain, &aor_user, &record) != 0) {
LM_DBG("no record '%.*s' found!\n", aor_user.len, aor_user.s);
goto out_unlock;
}
/* without any additional filtering, delete the whole urecord entry */
if (!match_ct && !match_next_hop && !match_sin) {
if (ul.delete_urecord((udomain_t *)udomain, &aor_user, record, 0) != 0) {
LM_ERR("failed to delete urecord for aor '%.*s'\n",
aor_user.len, aor_user.s);
ret = E_UNSPEC;
goto out_unlock;
}
goto out_unlock;
}
if (match_ct && match_ct->s)
LM_DBG("Delete by contact: [%.*s]\n", match_ct->len, match_ct->s);
if (match_sin && match_sin->s)
LM_DBG("Delete by sip_instance: [%.*s]\n",
match_sin->len, match_sin->s);
if (match_next_hop->s) {
he = sip_resolvehost(match_next_hop, &delete_port, NULL, 0, NULL);
if (!he) {
LM_ERR("cannot resolve given host: '%.*s'\n",
match_next_hop->len, match_next_hop->s);
ret = E_UNSPEC;
goto out_unlock;
}
LM_DBG("Delete by host: '%s'\n",
inet_ntoa(*(struct in_addr *)(he->h_addr_list[0])));
if (hostent_cpy(&delete_nh_he, he) != 0) {
LM_ERR("no more pkg mem\n");
ret = E_OUT_OF_MEM;
goto out_unlock;
}
}
for (it = record->contacts; it; ) {
contact = it;
it = it->next;
LM_DBG("checking contact uri '%.*s'\n", contact->c.len, contact->c.s);
he = sip_resolvehost(&contact->next_hop.name,
&contact->next_hop.port,
&contact->next_hop.proto, 0, NULL);
if (!he) {
LM_ERR("failed to resolve next hop %.*s of contact '%.*s'\n",
contact->next_hop.name.len, contact->next_hop.name.s,
contact->c.len, contact->c.s);
continue;
}
LM_DBG("next hop is [%.*s] resolving to [%s]\n",
contact->next_hop.name.len, contact->next_hop.name.s,
inet_ntoa(*(struct in_addr *)(he->h_addr_list[0])));
if (match_next_hop->s) {
if (memcmp(delete_nh_he.h_addr_list[0],
he->h_addr_list[0], he->h_length))
continue;
}
if (match_ct->s) {
if (match_ct->len != contact->c.len ||
memcmp(match_ct->s, contact->c.s, match_ct->len))
continue;
}
if (match_sin->s) {
if (str_strcmp(match_sin, &contact->instance))
continue;
}
ul.delete_ucontact(record, contact, 0);
}
ul.release_urecord(record, 0);
out_unlock:
ul.unlock_udomain((udomain_t *)udomain, &aor_user);
if (match_next_hop->s)
free_hostent(&delete_nh_he);
return ret;
}
