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-rw-r--r--source4/libcli/resolve/bcast.c117
-rw-r--r--source4/libcli/resolve/dns_ex.c671
-rw-r--r--source4/libcli/resolve/host.c60
-rw-r--r--source4/libcli/resolve/lmhosts.c133
-rw-r--r--source4/libcli/resolve/nbtlist.c223
-rw-r--r--source4/libcli/resolve/resolve.c342
-rw-r--r--source4/libcli/resolve/resolve.h53
-rw-r--r--source4/libcli/resolve/resolve_lp.c52
-rw-r--r--source4/libcli/resolve/testsuite.c92
-rw-r--r--source4/libcli/resolve/wins.c83
10 files changed, 1826 insertions, 0 deletions
diff --git a/source4/libcli/resolve/bcast.c b/source4/libcli/resolve/bcast.c
new file mode 100644
index 0000000..277a82d
--- /dev/null
+++ b/source4/libcli/resolve/bcast.c
@@ -0,0 +1,117 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ broadcast name resolution module
+
+ Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Jelmer Vernooij 2007
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/resolve/resolve.h"
+#include "system/network.h"
+#include "lib/socket/netif.h"
+#include "param/param.h"
+
+struct resolve_bcast_data {
+ struct interface *ifaces;
+ uint16_t nbt_port;
+ int nbt_timeout;
+};
+
+/**
+ broadcast name resolution method - async send
+ */
+static struct composite_context *resolve_name_bcast_send(
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ void *userdata, uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name)
+{
+ int num_interfaces;
+ const char **address_list;
+ struct composite_context *c;
+ int i, count=0;
+ struct resolve_bcast_data *data = talloc_get_type(userdata, struct resolve_bcast_data);
+
+ num_interfaces = iface_list_count(data->ifaces);
+
+ address_list = talloc_array(mem_ctx, const char *, num_interfaces+1);
+ if (address_list == NULL) return NULL;
+
+ for (i=0;i<num_interfaces;i++) {
+ bool ipv4 = iface_list_n_is_v4(data->ifaces, i);
+ const char *bcast;
+
+ if (!ipv4) {
+ continue;
+ }
+
+ bcast = iface_list_n_bcast(data->ifaces, i);
+ if (bcast == NULL) {
+ continue;
+ }
+
+ address_list[count] = talloc_strdup(address_list, bcast);
+ if (address_list[count] == NULL) {
+ talloc_free(address_list);
+ return NULL;
+ }
+ count++;
+ }
+ address_list[count] = NULL;
+
+ c = resolve_name_nbtlist_send(mem_ctx, event_ctx, flags, port, name,
+ address_list, data->ifaces, data->nbt_port,
+ data->nbt_timeout, true, false);
+ talloc_free(address_list);
+
+ return c;
+}
+
+/*
+ broadcast name resolution method - recv side
+ */
+static NTSTATUS resolve_name_bcast_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ NTSTATUS status = resolve_name_nbtlist_recv(c, mem_ctx, addrs, names);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
+ /* this makes much more sense for a bcast name resolution
+ timeout */
+ status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+ return status;
+}
+
+bool resolve_context_add_bcast_method(struct resolve_context *ctx, struct interface *ifaces, uint16_t nbt_port, int nbt_timeout)
+{
+ struct resolve_bcast_data *data = talloc(ctx, struct resolve_bcast_data);
+ data->ifaces = ifaces;
+ data->nbt_port = nbt_port;
+ data->nbt_timeout = nbt_timeout;
+ return resolve_context_add_method(ctx, resolve_name_bcast_send, resolve_name_bcast_recv, data);
+}
+
+bool resolve_context_add_bcast_method_lp(struct resolve_context *ctx, struct loadparm_context *lp_ctx)
+{
+ struct interface *ifaces;
+ load_interface_list(ctx, lp_ctx, &ifaces);
+ return resolve_context_add_bcast_method(ctx, ifaces, lpcfg_nbt_port(lp_ctx), lpcfg_parm_int(lp_ctx, NULL, "nbt", "timeout", 1));
+}
diff --git a/source4/libcli/resolve/dns_ex.c b/source4/libcli/resolve/dns_ex.c
new file mode 100644
index 0000000..09cc100
--- /dev/null
+++ b/source4/libcli/resolve/dns_ex.c
@@ -0,0 +1,671 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ async getaddrinfo()/dns_lookup() name resolution module
+
+ Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Stefan Metzmacher 2008
+ Copyright (C) Matthieu Patou 2011
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ this module uses a fork() per getaddrinfo() or dns_looup() call.
+ At first that might seem crazy, but it is actually very fast,
+ and solves many of the tricky problems of keeping a child
+ hanging around in a librar (like what happens when the parent forks).
+ We use a talloc destructor to ensure that the child is cleaned up
+ when we have finished with this name resolution.
+*/
+
+#include "includes.h"
+#include "system/network.h"
+#include "system/filesys.h"
+#include "lib/socket/socket.h"
+#include "libcli/composite/composite.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "libcli/resolve/resolve.h"
+#include "lib/util/util_net.h"
+#include "lib/addns/dnsquery.h"
+#include "lib/addns/dns.h"
+#include "lib/util/sys_rw.h"
+#include "lib/util/smb_strtox.h"
+#include <arpa/nameser.h>
+#include <resolv.h>
+
+struct dns_ex_state {
+ bool do_fallback;
+ uint32_t flags;
+ uint16_t port;
+ struct nbt_name name;
+ struct socket_address **addrs;
+ char **names;
+ pid_t child;
+ int child_fd;
+ struct tevent_fd *fde;
+ struct tevent_context *event_ctx;
+};
+
+/*
+ kill off a wayward child if needed. This allows us to stop an async
+ name resolution without leaving a potentially blocking call running
+ in a child
+*/
+static int dns_ex_destructor(struct dns_ex_state *state)
+{
+ int status;
+
+ kill(state->child, SIGTERM);
+ if (waitpid(state->child, &status, WNOHANG) == 0) {
+ kill(state->child, SIGKILL);
+ waitpid(state->child, &status, 0);
+ }
+
+ return 0;
+}
+
+struct dns_records_container {
+ char **list;
+ uint32_t count;
+};
+
+static int reply_to_addrs(TALLOC_CTX *mem_ctx, uint32_t *a_num,
+ char ***cur_addrs, uint32_t total,
+ struct dns_request *reply, int port)
+{
+ char addrstr[INET6_ADDRSTRLEN];
+ struct dns_rrec *rr;
+ char **addrs;
+ uint32_t i;
+ const char *addr;
+
+ /* at most we over-allocate here, but not by much */
+ addrs = talloc_realloc(mem_ctx, *cur_addrs, char *,
+ total + reply->num_answers);
+ if (!addrs) {
+ return 0;
+ }
+ *cur_addrs = addrs;
+
+ for (i = 0; i < reply->num_answers; i++) {
+ rr = reply->answers[i];
+
+ /* we are only interested in the IN class */
+ if (rr->r_class != DNS_CLASS_IN) {
+ continue;
+ }
+
+ if (rr->type == QTYPE_NS) {
+ /*
+ * After the record for NS will come the A or AAAA
+ * record of the NS.
+ */
+ break;
+ }
+
+ /* verify we actually have a record here */
+ if (!rr->data) {
+ continue;
+ }
+
+ /* we are only interested in A and AAAA records */
+ switch (rr->type) {
+ case QTYPE_A:
+ addr = inet_ntop(AF_INET,
+ (struct in_addr *)rr->data,
+ addrstr, sizeof(addrstr));
+ if (addr == NULL) {
+ continue;
+ }
+ break;
+ case QTYPE_AAAA:
+#ifdef HAVE_IPV6
+ addr = inet_ntop(AF_INET6,
+ (struct in6_addr *)rr->data,
+ addrstr, sizeof(addrstr));
+#else
+ addr = NULL;
+#endif
+ if (addr == NULL) {
+ continue;
+ }
+ break;
+ default:
+ continue;
+ }
+
+ addrs[total] = talloc_asprintf(addrs, "%s@%u/%s",
+ addrstr, port,
+ rr->name->pLabelList->label);
+ if (addrs[total]) {
+ total++;
+ if (rr->type == QTYPE_A) {
+ (*a_num)++;
+ }
+ }
+ }
+
+ return total;
+}
+
+static DNS_ERROR dns_lookup(TALLOC_CTX *mem_ctx, const char* name,
+ uint16_t q_type, struct dns_request **reply)
+{
+ int len, rlen;
+ uint8_t *answer;
+ bool loop;
+ struct dns_buffer buf;
+ DNS_ERROR err;
+
+ /* give space for a good sized answer by default */
+ answer = NULL;
+ len = 1500;
+ do {
+ answer = talloc_realloc(mem_ctx, answer, uint8_t, len);
+ if (!answer) {
+ return ERROR_DNS_NO_MEMORY;
+ }
+ rlen = res_search(name, DNS_CLASS_IN, q_type, answer, len);
+ if (rlen == -1) {
+ if (len >= 65535) {
+ return ERROR_DNS_SOCKET_ERROR;
+ }
+ /* retry once with max packet size */
+ len = 65535;
+ loop = true;
+ } else if (rlen > len) {
+ len = rlen;
+ loop = true;
+ } else {
+ loop = false;
+ }
+ } while(loop);
+
+ buf.data = answer;
+ buf.size = rlen;
+ buf.offset = 0;
+ buf.error = ERROR_DNS_SUCCESS;
+
+ err = dns_unmarshall_request(mem_ctx, &buf, reply);
+
+ TALLOC_FREE(answer);
+ return err;
+}
+
+static struct dns_records_container get_a_aaaa_records(TALLOC_CTX *mem_ctx,
+ const char* name,
+ int port)
+{
+ struct dns_request *reply;
+ struct dns_records_container ret;
+ char **addrs = NULL;
+ uint32_t a_num, total;
+ uint16_t qtype;
+ TALLOC_CTX *tmp_ctx;
+ DNS_ERROR err;
+
+ memset(&ret, 0, sizeof(struct dns_records_container));
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ return ret;
+ }
+
+ qtype = QTYPE_AAAA;
+
+ /* this is the blocking call we are going to lots of trouble
+ to avoid them in the parent */
+ err = dns_lookup(tmp_ctx, name, qtype, &reply);
+ if (!ERR_DNS_IS_OK(err)) {
+ qtype = QTYPE_A;
+ err = dns_lookup(tmp_ctx, name, qtype, &reply);
+ if (!ERR_DNS_IS_OK(err)) {
+ goto done;
+ }
+ }
+
+ a_num = total = 0;
+ total = reply_to_addrs(tmp_ctx, &a_num, &addrs, total, reply, port);
+
+ if (qtype == QTYPE_AAAA && a_num == 0) {
+ /*
+ * DNS server didn't returned A when asked for AAAA records.
+ * Most of the server do it, let's ask for A specifically.
+ */
+ err = dns_lookup(tmp_ctx, name, QTYPE_A, &reply);
+ if (ERR_DNS_IS_OK(err)) {
+ /*
+ * Ignore an error here and just return any AAAA
+ * records we already got. This may be an IPv6-only
+ * config.
+ */
+ total = reply_to_addrs(tmp_ctx, &a_num, &addrs, total,
+ reply, port);
+ }
+ }
+
+ if (total) {
+ talloc_steal(mem_ctx, addrs);
+ ret.count = total;
+ ret.list = addrs;
+ }
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return ret;
+}
+
+static struct dns_records_container get_srv_records(TALLOC_CTX *mem_ctx,
+ const char* name)
+{
+ struct dns_records_container ret = {0};
+ char **addrs = NULL;
+ struct dns_rr_srv *dclist;
+ NTSTATUS status;
+ size_t total;
+ size_t i;
+ size_t count = 0;
+
+ memset(&ret, 0, sizeof(struct dns_records_container));
+ /* this is the blocking call we are going to lots of trouble
+ to avoid them in the parent */
+ status = ads_dns_lookup_srv(mem_ctx, name, &dclist, &count);
+ if (!NT_STATUS_IS_OK(status)) {
+ return ret;
+ }
+ total = 0;
+ if (count == 0) {
+ return ret;
+ }
+
+ /* Loop over all returned records and pick the records */
+ for (i = 0; i < count; i++) {
+ struct dns_records_container c;
+ const char* tmp_str;
+
+ tmp_str = dclist[i].hostname;
+ if (strchr(tmp_str, '.') && tmp_str[strlen(tmp_str)-1] != '.') {
+ /* we are asking for a fully qualified name, but the
+ name doesn't end in a '.'. We need to prevent the
+ DNS library trying the search domains configured in
+ resolv.conf */
+ tmp_str = talloc_asprintf(mem_ctx, "%s.", tmp_str);
+ }
+
+ c = get_a_aaaa_records(mem_ctx, tmp_str, dclist[i].port);
+
+ /* wrap check */
+ if (total + c.count < total) {
+ /* possibly could just break here instead? */
+ TALLOC_FREE(addrs);
+ return ret;
+ }
+ total += c.count;
+ if (addrs == NULL) {
+ addrs = c.list;
+ } else {
+ unsigned j;
+
+ addrs = talloc_realloc(mem_ctx, addrs, char*, total);
+ for (j=0; j < c.count; j++) {
+ addrs[total - j - 1] = talloc_steal(addrs, c.list[j]);
+ }
+ }
+ }
+
+ if (total) {
+ ret.count = total;
+ ret.list = addrs;
+ }
+
+ return ret;
+}
+/*
+ the blocking child
+*/
+static void run_child_dns_lookup(struct dns_ex_state *state, int fd)
+{
+ bool first;
+ bool do_srv = (state->flags & RESOLVE_NAME_FLAG_DNS_SRV);
+ struct dns_records_container c;
+ char* addrs = NULL;
+ unsigned int i;
+
+ if (strchr(state->name.name, '.') && state->name.name[strlen(state->name.name)-1] != '.') {
+ /* we are asking for a fully qualified name, but the
+ name doesn't end in a '.'. We need to prevent the
+ DNS library trying the search domains configured in
+ resolv.conf */
+ state->name.name = talloc_strdup_append(discard_const_p(char, state->name.name),
+ ".");
+ }
+
+
+ if (do_srv) {
+ c = get_srv_records(state, state->name.name);
+ } else {
+ c = get_a_aaaa_records(state, state->name.name, state->port);
+ }
+
+ /* This line in critical - if we return without writing to the
+ * pipe, this is the signal that the name did not exist */
+ if (c.count == 0) {
+ goto done;
+ }
+
+ addrs = talloc_strdup(state, "");
+ if (!addrs) {
+ goto done;
+ }
+ first = true;
+
+ for (i=0; i < c.count; i++) {
+ addrs = talloc_asprintf_append_buffer(addrs, "%s%s",
+ first?"":",",
+ c.list[i]);
+ first = false;
+ }
+
+ if (addrs) {
+ DEBUG(11, ("Addrs = %s\n", addrs));
+ sys_write_v(fd, addrs, talloc_get_size(addrs));
+ }
+
+done:
+ close(fd);
+}
+
+/*
+ the blocking child
+*/
+static void run_child_getaddrinfo(struct dns_ex_state *state, int fd)
+{
+ int ret;
+ struct addrinfo hints;
+ struct addrinfo *res;
+ struct addrinfo *res_list = NULL;
+ char *addrs;
+ bool first;
+
+ ZERO_STRUCT(hints);
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_ADDRCONFIG | AI_NUMERICSERV;
+
+ ret = getaddrinfo(state->name.name, "0", &hints, &res_list);
+ /* try to fallback in case of error */
+ if (state->do_fallback) {
+ switch (ret) {
+#ifdef EAI_NODATA
+ case EAI_NODATA:
+#endif
+ case EAI_FAIL:
+ /* Linux returns EAI_NODATA on non-RFC1034-compliant names. FreeBSD returns EAI_FAIL */
+ case EAI_NONAME:
+ /* getaddrinfo() doesn't handle CNAME or non-RFC1034 compatible records */
+ run_child_dns_lookup(state, fd);
+ return;
+ default:
+ break;
+ }
+ }
+ if (ret != 0) {
+ goto done;
+ }
+
+ addrs = talloc_strdup(state, "");
+ if (!addrs) {
+ goto done;
+ }
+ first = true;
+ for (res = res_list; res; res = res->ai_next) {
+ char addrstr[INET6_ADDRSTRLEN];
+ if (!print_sockaddr_len(addrstr, sizeof(addrstr), (struct sockaddr *)res->ai_addr, res->ai_addrlen)) {
+ continue;
+ }
+ addrs = talloc_asprintf_append_buffer(addrs, "%s%s@%u/%s",
+ first?"":",",
+ addrstr,
+ state->port,
+ state->name.name);
+ if (!addrs) {
+ goto done;
+ }
+ first = false;
+ }
+
+ if (addrs) {
+ sys_write_v(fd, addrs, talloc_get_size(addrs));
+ }
+done:
+ if (res_list) {
+ freeaddrinfo(res_list);
+ }
+ close(fd);
+}
+
+/*
+ handle a read event on the pipe
+*/
+static void pipe_handler(struct tevent_context *ev, struct tevent_fd *fde,
+ uint16_t flags, void *private_data)
+{
+ struct composite_context *c = talloc_get_type(private_data, struct composite_context);
+ struct dns_ex_state *state = talloc_get_type(c->private_data,
+ struct dns_ex_state);
+ char *address;
+ uint32_t num_addrs, i;
+ char **addrs;
+ int ret;
+ int status;
+ int value = 0;
+
+ /* if we get any event from the child then we know that we
+ won't need to kill it off */
+ talloc_set_destructor(state, NULL);
+
+ if (ioctl(state->child_fd, FIONREAD, &value) != 0) {
+ value = 8192;
+ }
+
+ address = talloc_array(state, char, value+1);
+ if (address) {
+ /* yes, we don't care about EAGAIN or other niceities
+ here. They just can't happen with this parent/child
+ relationship, and even if they did then giving an error is
+ the right thing to do */
+ ret = read(state->child_fd, address, value);
+ } else {
+ ret = -1;
+ }
+ if (waitpid(state->child, &status, WNOHANG) == 0) {
+ kill(state->child, SIGKILL);
+ waitpid(state->child, &status, 0);
+ }
+
+ if (ret <= 0) {
+ /* The check for ret == 0 here is important, if the
+ * name does not exist, then no bytes are written to
+ * the pipe */
+ DEBUG(3,("dns child failed to find name '%s' of type %s\n",
+ state->name.name, (state->flags & RESOLVE_NAME_FLAG_DNS_SRV)?"SRV":"A"));
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return;
+ }
+
+ /* ensure the address looks good */
+ address[ret] = 0;
+
+ addrs = str_list_make(state, address, ",");
+ if (composite_nomem(addrs, c)) return;
+
+ num_addrs = str_list_length((const char * const *)addrs);
+
+ state->addrs = talloc_array(state, struct socket_address *,
+ num_addrs+1);
+ if (composite_nomem(state->addrs, c)) return;
+
+ state->names = talloc_array(state, char *, num_addrs+1);
+ if (composite_nomem(state->names, c)) return;
+
+ for (i=0; i < num_addrs; i++) {
+ uint32_t port = 0;
+ char *p = strrchr(addrs[i], '@');
+ char *n;
+ int error = 0;
+
+ if (!p) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return;
+ }
+
+ *p = '\0';
+ p++;
+
+ n = strrchr(p, '/');
+ if (!n) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return;
+ }
+
+ *n = '\0';
+ n++;
+
+ if (strcmp(addrs[i], "0.0.0.0") == 0) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return;
+ }
+ port = smb_strtoul(p, NULL, 10, &error, SMB_STR_STANDARD);
+ if (port > UINT16_MAX || error != 0) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return;
+ }
+ state->addrs[i] = socket_address_from_strings(state->addrs,
+ "ip",
+ addrs[i],
+ port);
+ if (composite_nomem(state->addrs[i], c)) return;
+
+ state->names[i] = talloc_strdup(state->names, n);
+ if (composite_nomem(state->names[i], c)) return;
+ }
+ state->addrs[i] = NULL;
+ state->names[i] = NULL;
+
+ composite_done(c);
+}
+
+/*
+ getaddrinfo() or dns_lookup() name resolution method - async send
+ */
+struct composite_context *resolve_name_dns_ex_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ void *privdata,
+ uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name,
+ bool do_fallback)
+{
+ struct composite_context *c;
+ struct dns_ex_state *state;
+ int fd[2] = { -1, -1 };
+ int ret;
+
+ c = composite_create(mem_ctx, event_ctx);
+ if (c == NULL) return NULL;
+
+ if (flags & RESOLVE_NAME_FLAG_FORCE_NBT) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return c;
+ }
+
+ state = talloc_zero(c, struct dns_ex_state);
+ if (composite_nomem(state, c)) return c;
+ c->private_data = state;
+
+ c->status = nbt_name_dup(state, name, &state->name);
+ if (!composite_is_ok(c)) return c;
+
+ /* setup a pipe to chat to our child */
+ ret = pipe(fd);
+ if (ret == -1) {
+ composite_error(c, map_nt_error_from_unix_common(errno));
+ return c;
+ }
+
+ state->do_fallback = do_fallback;
+ state->flags = flags;
+ state->port = port;
+
+ state->child_fd = fd[0];
+ state->event_ctx = c->event_ctx;
+
+ /* we need to put the child in our event context so
+ we know when the dns_lookup() has finished */
+ state->fde = tevent_add_fd(c->event_ctx, c, state->child_fd, TEVENT_FD_READ,
+ pipe_handler, c);
+ if (composite_nomem(state->fde, c)) {
+ close(fd[0]);
+ close(fd[1]);
+ return c;
+ }
+ tevent_fd_set_auto_close(state->fde);
+
+ state->child = fork();
+ if (state->child == (pid_t)-1) {
+ composite_error(c, map_nt_error_from_unix_common(errno));
+ return c;
+ }
+
+ if (state->child == 0) {
+ close(fd[0]);
+ if (state->flags & RESOLVE_NAME_FLAG_FORCE_DNS) {
+ run_child_dns_lookup(state, fd[1]);
+ } else {
+ run_child_getaddrinfo(state, fd[1]);
+ }
+ _exit(0);
+ }
+ close(fd[1]);
+
+ /* cleanup wayward children */
+ talloc_set_destructor(state, dns_ex_destructor);
+
+ return c;
+}
+
+/*
+ getaddrinfo() or dns_lookup() name resolution method - recv side
+*/
+NTSTATUS resolve_name_dns_ex_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ NTSTATUS status;
+
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct dns_ex_state *state = talloc_get_type(c->private_data,
+ struct dns_ex_state);
+ *addrs = talloc_steal(mem_ctx, state->addrs);
+ if (names) {
+ *names = talloc_steal(mem_ctx, state->names);
+ }
+ }
+
+ talloc_free(c);
+ return status;
+}
diff --git a/source4/libcli/resolve/host.c b/source4/libcli/resolve/host.c
new file mode 100644
index 0000000..755a4e8
--- /dev/null
+++ b/source4/libcli/resolve/host.c
@@ -0,0 +1,60 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ async "host" name resolution module
+
+ Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Stefan Metzmacher 2008
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "system/network.h"
+#include "system/filesys.h"
+#include "lib/socket/socket.h"
+#include "libcli/composite/composite.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "libcli/resolve/resolve.h"
+
+/*
+ getaddrinfo() (with fallback to dns_lookup()) name resolution method - async send
+ */
+struct composite_context *resolve_name_host_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ void *privdata, uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name)
+{
+ return resolve_name_dns_ex_send(mem_ctx, event_ctx, NULL, flags,
+ port, name, true);
+}
+
+/*
+ getaddrinfo() (with fallback to dns_lookup()) name resolution method - recv side
+*/
+NTSTATUS resolve_name_host_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ return resolve_name_dns_ex_recv(c, mem_ctx, addrs, names);
+}
+
+bool resolve_context_add_host_method(struct resolve_context *ctx)
+{
+ return resolve_context_add_method(ctx, resolve_name_host_send, resolve_name_host_recv,
+ NULL);
+}
diff --git a/source4/libcli/resolve/lmhosts.c b/source4/libcli/resolve/lmhosts.c
new file mode 100644
index 0000000..244a9a3
--- /dev/null
+++ b/source4/libcli/resolve/lmhosts.c
@@ -0,0 +1,133 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ lmhosts name resolution module
+
+ Copyright (C) Andrew Tridgell 1994-1998,2005
+ Copyright (C) Jeremy Allison 2007
+ Copyright (C) Jelmer Vernooij 2007
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009-2014
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/composite/composite.h"
+#include "libcli/resolve/resolve.h"
+#include "lib/socket/socket.h"
+#include "system/network.h"
+#include "lib/socket/netif.h"
+#include "param/param.h"
+#include "lib/util/util_net.h"
+#include "libcli/nbt/libnbt.h"
+#include "dynconfig.h"
+
+struct resolve_lmhosts_state {
+ struct socket_address **addrs;
+ char **names;
+};
+
+/**
+ lmhosts name resolution method - async send
+ */
+/*
+ general name resolution - async send
+ */
+static struct composite_context *resolve_name_lmhosts_send(
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ void *userdata, uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name)
+{
+ struct composite_context *c;
+ struct resolve_lmhosts_state *state;
+ struct sockaddr_storage *resolved_iplist;
+ size_t resolved_count = 0, i;
+
+ if (event_ctx == NULL) {
+ return NULL;
+ }
+
+ c = composite_create(mem_ctx, event_ctx);
+ if (c == NULL) return NULL;
+
+ if (composite_nomem(c->event_ctx, c)) return c;
+
+ state = talloc_zero(c, struct resolve_lmhosts_state);
+ if (composite_nomem(state, c)) return c;
+ c->private_data = state;
+
+ c->status = resolve_lmhosts_file_as_sockaddr(state,
+ dyn_LMHOSTSFILE,
+ name->name,
+ name->type,
+ &resolved_iplist,
+ &resolved_count);
+ if (!composite_is_ok(c)) return c;
+
+ for (i=0; i < resolved_count; i += 2) {
+ state->addrs = talloc_realloc(state, state->addrs, struct socket_address *, i+2);
+ if (composite_nomem(state->addrs, c)) return c;
+
+ set_sockaddr_port((struct sockaddr *)&resolved_iplist[i], port);
+
+ state->addrs[i] = socket_address_from_sockaddr(state->addrs, (struct sockaddr *)&resolved_iplist[i], sizeof(resolved_iplist[i]));
+ if (composite_nomem(state->addrs[i], c)) return c;
+
+ state->addrs[i+1] = NULL;
+
+
+ state->names = talloc_realloc(state, state->names, char *, i+2);
+ if (composite_nomem(state->addrs, c)) return c;
+
+ state->names[i] = talloc_strdup(state->names, name->name);
+ if (composite_nomem(state->names[i], c)) return c;
+
+ state->names[i+1] = NULL;
+
+ }
+
+ composite_done(c);
+ return c;
+}
+
+/*
+ general name resolution method - recv side
+ */
+static NTSTATUS resolve_name_lmhosts_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ NTSTATUS status;
+
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct resolve_lmhosts_state *state = talloc_get_type(c->private_data, struct resolve_lmhosts_state);
+ *addrs = talloc_steal(mem_ctx, state->addrs);
+ if (names) {
+ *names = talloc_steal(mem_ctx, state->names);
+ }
+ }
+
+ talloc_free(c);
+ return status;
+}
+
+
+bool resolve_context_add_lmhosts_method(struct resolve_context *ctx)
+{
+ return resolve_context_add_method(ctx, resolve_name_lmhosts_send, resolve_name_lmhosts_recv, NULL);
+}
diff --git a/source4/libcli/resolve/nbtlist.c b/source4/libcli/resolve/nbtlist.c
new file mode 100644
index 0000000..13f38ff
--- /dev/null
+++ b/source4/libcli/resolve/nbtlist.c
@@ -0,0 +1,223 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ nbt list of addresses name resolution module
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ TODO: we should lower the timeout, and add retries for each name
+*/
+
+#include "includes.h"
+#include "libcli/composite/composite.h"
+#include "system/network.h"
+#include "lib/socket/socket.h"
+#include "lib/socket/netif.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "../libcli/nbt/libnbt.h"
+#include "param/param.h"
+#include "libcli/resolve/resolve.h"
+
+struct nbtlist_state {
+ uint16_t flags;
+ uint16_t port;
+ struct nbt_name name;
+ struct nbt_name_socket *nbtsock;
+ int num_queries;
+ struct nbt_name_request **queries;
+ struct nbt_name_query *io_queries;
+ struct socket_address **addrs;
+ char **names;
+ struct interface *ifaces;
+};
+
+/*
+ handle events during nbtlist name resolution
+*/
+static void nbtlist_handler(struct nbt_name_request *req)
+{
+ struct composite_context *c = talloc_get_type(req->async.private_data,
+ struct composite_context);
+ struct nbtlist_state *state = talloc_get_type(c->private_data, struct nbtlist_state);
+ struct nbt_name_query *q;
+ int i;
+
+ for (i=0;i<state->num_queries;i++) {
+ if (req == state->queries[i]) break;
+ }
+
+ if (i == state->num_queries) {
+ /* not for us?! */
+ composite_error(c, NT_STATUS_INTERNAL_ERROR);
+ return;
+ }
+
+ q = &state->io_queries[i];
+
+ c->status = nbt_name_query_recv(req, state, q);
+
+ /* free the network resource directly */
+ talloc_free(state->nbtsock);
+ if (!composite_is_ok(c)) return;
+
+ if (q->out.num_addrs < 1) {
+ composite_error(c, NT_STATUS_UNEXPECTED_NETWORK_ERROR);
+ return;
+ }
+
+ state->addrs = talloc_array(state, struct socket_address *,
+ q->out.num_addrs + 1);
+ if (composite_nomem(state->addrs, c)) return;
+
+ state->names = talloc_array(state, char *, q->out.num_addrs + 1);
+ if (composite_nomem(state->names, c)) return;
+
+ for (i=0;i<q->out.num_addrs;i++) {
+ state->addrs[i] = socket_address_from_strings(state->addrs,
+ "ipv4",
+ q->out.reply_addrs[i],
+ state->port);
+ if (composite_nomem(state->addrs[i], c)) return;
+
+ state->names[i] = talloc_strdup(state->names, state->name.name);
+ if (composite_nomem(state->names[i], c)) return;
+ }
+ state->addrs[i] = NULL;
+ state->names[i] = NULL;
+
+ composite_done(c);
+}
+
+/*
+ nbtlist name resolution method - async send
+ */
+struct composite_context *resolve_name_nbtlist_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name,
+ const char * const *address_list,
+ struct interface *ifaces,
+ uint16_t nbt_port,
+ int nbt_timeout,
+ bool broadcast,
+ bool wins_lookup)
+{
+ struct composite_context *c;
+ struct nbtlist_state *state;
+ int i;
+
+ c = composite_create(mem_ctx, event_ctx);
+ if (c == NULL) return NULL;
+
+ if (flags & RESOLVE_NAME_FLAG_FORCE_DNS) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return c;
+ }
+
+ if (strlen(name->name) > 15) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return c;
+ }
+
+ state = talloc(c, struct nbtlist_state);
+ if (composite_nomem(state, c)) return c;
+ c->private_data = state;
+
+ state->flags = flags;
+ state->port = port;
+
+ c->status = nbt_name_dup(state, name, &state->name);
+ if (!composite_is_ok(c)) return c;
+
+ state->name.name = strupper_talloc(state, state->name.name);
+ if (composite_nomem(state->name.name, c)) return c;
+ if (state->name.scope) {
+ state->name.scope = strupper_talloc(state, state->name.scope);
+ if (composite_nomem(state->name.scope, c)) return c;
+ }
+
+ state->ifaces = talloc_reference(state, ifaces);
+
+ /*
+ * we can't push long names on the wire,
+ * so bail out here to give a useful error message
+ */
+ if (strlen(state->name.name) > 15) {
+ composite_error(c, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return c;
+ }
+
+ state->nbtsock = nbt_name_socket_init(state, event_ctx);
+ if (composite_nomem(state->nbtsock, c)) return c;
+
+ /* count the address_list size */
+ for (i=0;address_list[i];i++) /* noop */ ;
+
+ state->num_queries = i;
+ state->io_queries = talloc_array(state, struct nbt_name_query, state->num_queries);
+ if (composite_nomem(state->io_queries, c)) return c;
+
+ state->queries = talloc_array(state, struct nbt_name_request *, state->num_queries);
+ if (composite_nomem(state->queries, c)) return c;
+
+ for (i=0;i<state->num_queries;i++) {
+ state->io_queries[i].in.name = state->name;
+ state->io_queries[i].in.dest_addr = talloc_strdup(state->io_queries, address_list[i]);
+ state->io_queries[i].in.dest_port = nbt_port;
+ if (composite_nomem(state->io_queries[i].in.dest_addr, c)) return c;
+
+ state->io_queries[i].in.broadcast = broadcast;
+ state->io_queries[i].in.wins_lookup = wins_lookup;
+ state->io_queries[i].in.timeout = nbt_timeout;
+ state->io_queries[i].in.retries = 2;
+
+ state->queries[i] = nbt_name_query_send(state->nbtsock, &state->io_queries[i]);
+ if (composite_nomem(state->queries[i], c)) return c;
+
+ state->queries[i]->async.fn = nbtlist_handler;
+ state->queries[i]->async.private_data = c;
+ }
+
+ return c;
+}
+
+/*
+ nbt list of addresses name resolution method - recv side
+ */
+NTSTATUS resolve_name_nbtlist_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ NTSTATUS status;
+
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct nbtlist_state *state = talloc_get_type(c->private_data, struct nbtlist_state);
+ *addrs = talloc_steal(mem_ctx, state->addrs);
+ if (names) {
+ *names = talloc_steal(mem_ctx, state->names);
+ }
+ }
+
+ talloc_free(c);
+ return status;
+}
+
diff --git a/source4/libcli/resolve/resolve.c b/source4/libcli/resolve/resolve.c
new file mode 100644
index 0000000..db2606b
--- /dev/null
+++ b/source4/libcli/resolve/resolve.c
@@ -0,0 +1,342 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ general name resolution interface
+
+ Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Jelmer Vernooij 2007
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/composite/composite.h"
+#include "libcli/resolve/resolve.h"
+#include "librpc/gen_ndr/ndr_nbt.h"
+#include "system/network.h"
+#include "lib/socket/socket.h"
+#include "../lib/util/dlinklist.h"
+#include "lib/tsocket/tsocket.h"
+#include "lib/util/util_net.h"
+
+#undef strcasecmp
+
+struct resolve_state {
+ struct resolve_context *ctx;
+ struct resolve_method *method;
+ uint32_t flags;
+ uint16_t port;
+ struct nbt_name name;
+ struct composite_context *creq;
+ struct socket_address **addrs;
+ char **names;
+};
+
+static struct composite_context *setup_next_method(struct composite_context *c);
+
+
+struct resolve_context {
+ struct resolve_method {
+ resolve_name_send_fn send_fn;
+ resolve_name_recv_fn recv_fn;
+ void *privdata;
+ struct resolve_method *prev, *next;
+ } *methods;
+};
+
+/**
+ * Initialize a resolve context
+ */
+struct resolve_context *resolve_context_init(TALLOC_CTX *mem_ctx)
+{
+ return talloc_zero(mem_ctx, struct resolve_context);
+}
+
+/**
+ * Add a resolve method
+ */
+bool resolve_context_add_method(struct resolve_context *ctx, resolve_name_send_fn send_fn,
+ resolve_name_recv_fn recv_fn, void *userdata)
+{
+ struct resolve_method *method = talloc_zero(ctx, struct resolve_method);
+
+ if (method == NULL)
+ return false;
+
+ method->send_fn = send_fn;
+ method->recv_fn = recv_fn;
+ method->privdata = userdata;
+ DLIST_ADD_END(ctx->methods, method);
+ return true;
+}
+
+/**
+ handle completion of one name resolve method
+*/
+static void resolve_handler(struct composite_context *creq)
+{
+ struct composite_context *c = (struct composite_context *)creq->async.private_data;
+ struct resolve_state *state = talloc_get_type(c->private_data, struct resolve_state);
+ const struct resolve_method *method = state->method;
+
+ c->status = method->recv_fn(creq, state, &state->addrs, &state->names);
+
+ if (!NT_STATUS_IS_OK(c->status)) {
+ state->method = state->method->next;
+ state->creq = setup_next_method(c);
+ if (state->creq != NULL) {
+ return;
+ }
+ }
+
+ if (!NT_STATUS_IS_OK(c->status)) {
+ c->state = COMPOSITE_STATE_ERROR;
+ } else {
+ c->state = COMPOSITE_STATE_DONE;
+ }
+ if (c->async.fn) {
+ c->async.fn(c);
+ }
+}
+
+
+static struct composite_context *setup_next_method(struct composite_context *c)
+{
+ struct resolve_state *state = talloc_get_type(c->private_data, struct resolve_state);
+ struct composite_context *creq = NULL;
+
+ do {
+ if (state->method) {
+ creq = state->method->send_fn(c, c->event_ctx,
+ state->method->privdata,
+ state->flags,
+ state->port,
+ &state->name);
+ }
+ if (creq == NULL && state->method) state->method = state->method->next;
+
+ } while (!creq && state->method);
+
+ if (creq) {
+ creq->async.fn = resolve_handler;
+ creq->async.private_data = c;
+ }
+
+ return creq;
+}
+
+/*
+ general name resolution - async send
+ */
+struct composite_context *resolve_name_all_send(struct resolve_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint32_t flags, /* RESOLVE_NAME_FLAG_* */
+ uint16_t port,
+ struct nbt_name *name,
+ struct tevent_context *event_ctx)
+{
+ struct composite_context *c;
+ struct resolve_state *state;
+
+ if (event_ctx == NULL) {
+ return NULL;
+ }
+
+ c = composite_create(mem_ctx, event_ctx);
+ if (c == NULL) return NULL;
+
+ if (composite_nomem(c->event_ctx, c)) return c;
+
+ state = talloc(c, struct resolve_state);
+ if (composite_nomem(state, c)) return c;
+ c->private_data = state;
+
+ state->flags = flags;
+ state->port = port;
+
+ c->status = nbt_name_dup(state, name, &state->name);
+ if (!composite_is_ok(c)) return c;
+
+ state->ctx = talloc_reference(state, ctx);
+ if (composite_nomem(state->ctx, c)) return c;
+
+ if (is_ipaddress(state->name.name) ||
+ strcasecmp(state->name.name, "localhost") == 0) {
+ state->addrs = talloc_array(state, struct socket_address *, 2);
+ if (composite_nomem(state->addrs, c)) return c;
+ state->addrs[0] = socket_address_from_strings(state->addrs, "ip",
+ state->name.name, 0);
+ if (composite_nomem(state->addrs[0], c)) return c;
+ state->addrs[1] = NULL;
+ state->names = talloc_array(state, char *, 2);
+ if (composite_nomem(state->names, c)) return c;
+ state->names[0] = talloc_strdup(state->names, state->name.name);
+ if (composite_nomem(state->names[0], c)) return c;
+ state->names[1] = NULL;
+ composite_done(c);
+ return c;
+ }
+
+ state->method = ctx->methods;
+ if (state->method == NULL) {
+ composite_error(c, NT_STATUS_BAD_NETWORK_NAME);
+ return c;
+ }
+ state->creq = setup_next_method(c);
+ if (composite_nomem(state->creq, c)) return c;
+
+ return c;
+}
+
+/*
+ general name resolution method - recv side
+ */
+NTSTATUS resolve_name_all_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ NTSTATUS status;
+
+ status = composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct resolve_state *state = talloc_get_type(c->private_data, struct resolve_state);
+ *addrs = talloc_steal(mem_ctx, state->addrs);
+ if (names) {
+ *names = talloc_steal(mem_ctx, state->names);
+ }
+ }
+
+ talloc_free(c);
+ return status;
+}
+
+struct composite_context *resolve_name_ex_send(struct resolve_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint32_t flags, /* RESOLVE_NAME_FLAG_* */
+ uint16_t port,
+ struct nbt_name *name,
+ struct tevent_context *event_ctx)
+{
+ return resolve_name_all_send(ctx, mem_ctx, flags, port, name, event_ctx);
+}
+
+struct composite_context *resolve_name_send(struct resolve_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ struct nbt_name *name,
+ struct tevent_context *event_ctx)
+{
+ return resolve_name_ex_send(ctx, mem_ctx, 0, 0, name, event_ctx);
+}
+
+NTSTATUS resolve_name_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ const char **reply_addr)
+{
+ NTSTATUS status;
+ struct socket_address **addrs = NULL;
+
+ status = resolve_name_all_recv(c, mem_ctx, &addrs, NULL);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct tsocket_address *t_addr = socket_address_to_tsocket_address(addrs, addrs[0]);
+ if (!t_addr) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ *reply_addr = tsocket_address_inet_addr_string(t_addr, mem_ctx);
+ talloc_free(addrs);
+ if (!*reply_addr) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+
+ return status;
+}
+
+/*
+ receive multiple responses from resolve_name_send()
+ */
+NTSTATUS resolve_name_multiple_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ const char ***reply_addrs)
+{
+ NTSTATUS status;
+ struct socket_address **addrs = NULL;
+ int i;
+
+ status = resolve_name_all_recv(c, mem_ctx, &addrs, NULL);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ /* count the addresses */
+ for (i=0; addrs[i]; i++) ;
+
+ *reply_addrs = talloc_array(mem_ctx, const char *, i+1);
+ NT_STATUS_HAVE_NO_MEMORY(*reply_addrs);
+
+ for (i=0; addrs[i]; i++) {
+ struct tsocket_address *t_addr = socket_address_to_tsocket_address(addrs, addrs[i]);
+ NT_STATUS_HAVE_NO_MEMORY(t_addr);
+
+ (*reply_addrs)[i] = tsocket_address_inet_addr_string(t_addr, *reply_addrs);
+ NT_STATUS_HAVE_NO_MEMORY((*reply_addrs)[i]);
+ }
+ (*reply_addrs)[i] = NULL;
+
+ talloc_free(addrs);
+
+ return status;
+}
+
+/*
+ general name resolution - sync call
+ */
+NTSTATUS resolve_name_ex(struct resolve_context *ctx,
+ uint32_t flags, /* RESOLVE_NAME_FLAG_* */
+ uint16_t port,
+ struct nbt_name *name,
+ TALLOC_CTX *mem_ctx,
+ const char **reply_addr,
+ struct tevent_context *ev)
+{
+ struct composite_context *c = resolve_name_ex_send(ctx, mem_ctx, flags, port, name, ev);
+ return resolve_name_recv(c, mem_ctx, reply_addr);
+}
+
+
+/* Initialise a struct nbt_name with a NULL scope */
+
+void make_nbt_name(struct nbt_name *nbt, const char *name, int type)
+{
+ nbt->name = name;
+ nbt->scope = NULL;
+ nbt->type = type;
+}
+
+/* Initialise a struct nbt_name with a NBT_NAME_CLIENT (0x00) name */
+
+void make_nbt_name_client(struct nbt_name *nbt, const char *name)
+{
+ make_nbt_name(nbt, name, NBT_NAME_CLIENT);
+}
+
+/* Initialise a struct nbt_name with a NBT_NAME_SERVER (0x20) name */
+
+void make_nbt_name_server(struct nbt_name *nbt, const char *name)
+{
+ make_nbt_name(nbt, name, NBT_NAME_SERVER);
+}
+
+
diff --git a/source4/libcli/resolve/resolve.h b/source4/libcli/resolve/resolve.h
new file mode 100644
index 0000000..8ace574
--- /dev/null
+++ b/source4/libcli/resolve/resolve.h
@@ -0,0 +1,53 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ general name resolution interface
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __LIBCLI_RESOLVE_H__
+#define __LIBCLI_RESOLVE_H__
+
+struct socket_address;
+struct tevent_context;
+
+#include "../libcli/nbt/libnbt.h"
+
+/* force that only NBT name resolution is used */
+#define RESOLVE_NAME_FLAG_FORCE_NBT 0x00000001
+/* force that only DNS name resolution is used */
+#define RESOLVE_NAME_FLAG_FORCE_DNS 0x00000002
+/* tell the dns resolver to do a DNS SRV lookup */
+#define RESOLVE_NAME_FLAG_DNS_SRV 0x00000004
+/* allow the resolver to overwrite the given port, e.g. for DNS SRV */
+#define RESOLVE_NAME_FLAG_OVERWRITE_PORT 0x00000008
+
+typedef struct composite_context *(*resolve_name_send_fn)(TALLOC_CTX *mem_ctx,
+ struct tevent_context *,
+ void *privdata,
+ uint32_t flags,
+ uint16_t port,
+ struct nbt_name *);
+typedef NTSTATUS (*resolve_name_recv_fn)(struct composite_context *creq,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names);
+#include "libcli/resolve/proto.h"
+struct interface;
+#include "libcli/resolve/lp_proto.h"
+
+#endif /* __LIBCLI_RESOLVE_H__ */
diff --git a/source4/libcli/resolve/resolve_lp.c b/source4/libcli/resolve/resolve_lp.c
new file mode 100644
index 0000000..56c7b01
--- /dev/null
+++ b/source4/libcli/resolve/resolve_lp.c
@@ -0,0 +1,52 @@
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+ Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/resolve/resolve.h"
+#include "param/param.h"
+
+struct resolve_context *lpcfg_resolve_context(struct loadparm_context *lp_ctx)
+{
+ const char **methods = lpcfg_name_resolve_order(lp_ctx);
+ int i;
+ struct resolve_context *ret = resolve_context_init(lp_ctx);
+
+ if (ret == NULL)
+ return NULL;
+
+ for (i = 0; methods != NULL && methods[i] != NULL; i++) {
+ if (!strcmp(methods[i], "wins")) {
+ if (lpcfg_disable_netbios(lp_ctx) == false) {
+ resolve_context_add_wins_method_lp(ret, lp_ctx);
+ }
+ } else if (!strcmp(methods[i], "bcast")) {
+ if (lpcfg_disable_netbios(lp_ctx) == false) {
+ resolve_context_add_bcast_method_lp(ret, lp_ctx);
+ }
+ } else if (!strcmp(methods[i], "lmhosts")) {
+ resolve_context_add_lmhosts_method(ret);
+ } else if (!strcmp(methods[i], "host")) {
+ resolve_context_add_host_method(ret);
+ } else {
+ DEBUG(0, ("Unknown resolve method '%s'\n", methods[i]));
+ }
+ }
+
+ return ret;
+}
diff --git a/source4/libcli/resolve/testsuite.c b/source4/libcli/resolve/testsuite.c
new file mode 100644
index 0000000..2bf6e46
--- /dev/null
+++ b/source4/libcli/resolve/testsuite.c
@@ -0,0 +1,92 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ local test for async resolve code
+
+ Copyright (C) Andrew Tridgell 2004
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "libcli/resolve/resolve.h"
+#include "torture/torture.h"
+#include "torture/local/proto.h"
+#include "system/network.h"
+#include "lib/util/util_net.h"
+
+static bool test_async_resolve(struct torture_context *tctx)
+{
+ struct nbt_name n;
+ struct tevent_context *ev;
+ int timelimit = torture_setting_int(tctx, "timelimit", 2);
+ const char *host = torture_setting_string(tctx, "host", NULL);
+ int count = 0;
+ struct timeval tv = timeval_current();
+ TALLOC_CTX *mem_ctx = tctx;
+
+ ev = tctx->ev;
+
+ ZERO_STRUCT(n);
+ n.name = host;
+
+ torture_comment(tctx, "Testing async resolve of '%s' for %d seconds\n",
+ host, timelimit);
+ while (timeval_elapsed(&tv) < timelimit) {
+ struct socket_address **s;
+ struct composite_context *c = resolve_name_host_send(mem_ctx, ev, NULL, 0, 0, &n);
+ torture_assert(tctx, c != NULL, "resolve_name_host_send");
+ torture_assert_ntstatus_ok(tctx, resolve_name_host_recv(c, mem_ctx, &s, NULL),
+ "async resolve failed");
+ count++;
+ }
+
+ torture_comment(tctx, "async rate of %.1f resolves/sec\n",
+ count/timeval_elapsed(&tv));
+ return true;
+}
+
+/*
+ test resolution using sync method
+*/
+static bool test_sync_resolve(struct torture_context *tctx)
+{
+ int timelimit = torture_setting_int(tctx, "timelimit", 2);
+ struct timeval tv = timeval_current();
+ int count = 0;
+ const char *host = torture_setting_string(tctx, "host", NULL);
+
+ torture_comment(tctx, "Testing sync resolve of '%s' for %d seconds\n",
+ host, timelimit);
+ while (timeval_elapsed(&tv) < timelimit) {
+ inet_ntoa(interpret_addr2(host));
+ count++;
+ }
+
+ torture_comment(tctx, "sync rate of %.1f resolves/sec\n",
+ count/timeval_elapsed(&tv));
+ return true;
+}
+
+
+struct torture_suite *torture_local_resolve(TALLOC_CTX *mem_ctx)
+{
+ struct torture_suite *suite = torture_suite_create(mem_ctx, "resolve");
+
+ torture_suite_add_simple_test(suite, "async", test_async_resolve);
+ torture_suite_add_simple_test(suite, "sync", test_sync_resolve);
+
+ return suite;
+}
diff --git a/source4/libcli/resolve/wins.c b/source4/libcli/resolve/wins.c
new file mode 100644
index 0000000..541d3fe
--- /dev/null
+++ b/source4/libcli/resolve/wins.c
@@ -0,0 +1,83 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ wins name resolution module
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "../libcli/nbt/libnbt.h"
+#include "libcli/resolve/resolve.h"
+#include "param/param.h"
+#include "lib/socket/socket.h"
+#include "lib/socket/netif.h"
+
+struct resolve_wins_data {
+ char **address_list;
+ struct interface *ifaces;
+ uint16_t nbt_port;
+ int nbt_timeout;
+};
+
+/**
+ wins name resolution method - async send
+ */
+struct composite_context *resolve_name_wins_send(
+ TALLOC_CTX *mem_ctx,
+ struct tevent_context *event_ctx,
+ void *userdata,
+ uint32_t flags,
+ uint16_t port,
+ struct nbt_name *name)
+{
+ struct resolve_wins_data *wins_data = talloc_get_type(userdata, struct resolve_wins_data);
+ if (wins_data->address_list == NULL) return NULL;
+ return resolve_name_nbtlist_send(mem_ctx, event_ctx, flags, port, name,
+ (const char * const *)wins_data->address_list,
+ wins_data->ifaces,
+ wins_data->nbt_port, wins_data->nbt_timeout,
+ false, true);
+}
+
+/*
+ wins name resolution method - recv side
+ */
+NTSTATUS resolve_name_wins_recv(struct composite_context *c,
+ TALLOC_CTX *mem_ctx,
+ struct socket_address ***addrs,
+ char ***names)
+{
+ return resolve_name_nbtlist_recv(c, mem_ctx, addrs, names);
+}
+
+bool resolve_context_add_wins_method(struct resolve_context *ctx, const char **address_list, struct interface *ifaces, uint16_t nbt_port, int nbt_timeout)
+{
+ struct resolve_wins_data *wins_data = talloc(ctx, struct resolve_wins_data);
+ wins_data->address_list = str_list_copy(wins_data, address_list);
+ wins_data->ifaces = talloc_reference(wins_data, ifaces);
+ wins_data->nbt_port = nbt_port;
+ wins_data->nbt_timeout = nbt_timeout;
+ return resolve_context_add_method(ctx, resolve_name_wins_send, resolve_name_wins_recv,
+ wins_data);
+}
+
+bool resolve_context_add_wins_method_lp(struct resolve_context *ctx, struct loadparm_context *lp_ctx)
+{
+ struct interface *ifaces;
+ load_interface_list(ctx, lp_ctx, &ifaces);
+ return resolve_context_add_wins_method(ctx, lpcfg_wins_server_list(lp_ctx), ifaces, lpcfg_nbt_port(lp_ctx), lpcfg_parm_int(lp_ctx, NULL, "nbt", "timeout", 1));
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-08 04:39:19 +0000