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-rw-r--r--source3/include/client.h5
-rw-r--r--source3/libsmb/cliconnect.c87
-rw-r--r--source3/libsmb/clientgen.c11
3 files changed, 81 insertions, 22 deletions
diff --git a/source3/include/client.h b/source3/include/client.h
index 4179ae0f52..cdf8069dfb 100644
--- a/source3/include/client.h
+++ b/source3/include/client.h
@@ -62,7 +62,6 @@ struct cli_state {
char *share;
char *dev;
- DATA_BLOB secblob; /* cryptkey or negTokenInit */
int serverzone;
uint32 servertime;
int timeout; /* in milliseconds. */
@@ -137,6 +136,10 @@ struct cli_state {
bool lockread;
bool writeunlock;
uint32_t session_key;
+ struct GUID guid;
+ DATA_BLOB gss_blob;
+ uint8_t challenge[8];
+ const char *workgroup;
} server;
uint32_t capabilities;
diff --git a/source3/libsmb/cliconnect.c b/source3/libsmb/cliconnect.c
index 4963332c0d..a02e7dd7d3 100644
--- a/source3/libsmb/cliconnect.c
+++ b/source3/libsmb/cliconnect.c
@@ -33,6 +33,7 @@
#include "async_smb.h"
#include "libsmb/nmblib.h"
#include "read_smb.h"
+#include "librpc/ndr/libndr.h"
static const struct {
int prot;
@@ -2622,8 +2623,14 @@ static void cli_negprot_done(struct tevent_req *subreq)
bool server_writebraw = false;
bool server_lockread = false;
bool server_writeunlock = false;
+ struct GUID server_guid = GUID_zero();
+ DATA_BLOB server_gss_blob = data_blob_null;
+ uint8_t server_challenge[8];
+ char *server_workgroup = NULL;
enum protocol_types protocol;
+ ZERO_STRUCT(server_challenge);
+
status = cli_smb_recv(subreq, state, &inbuf, 1, &wct, &vwv,
&num_bytes, &bytes);
TALLOC_FREE(subreq);
@@ -2663,6 +2670,7 @@ static void cli_negprot_done(struct tevent_req *subreq)
bool server_allowed;
const char *server_signing = NULL;
bool ok;
+ uint16_t key_len;
if (wct != 0x11) {
tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
@@ -2680,6 +2688,9 @@ static void cli_negprot_done(struct tevent_req *subreq)
ts = interpret_long_date(((char *)(vwv+11))+1);
cli->servertime = ts.tv_sec;
server_capabilities = IVAL(vwv + 9, 1);
+
+ key_len = CVAL(vwv + 16, 1);
+
if (server_capabilities & CAP_RAW_MODE) {
server_readbraw = true;
server_writebraw = true;
@@ -2687,22 +2698,53 @@ static void cli_negprot_done(struct tevent_req *subreq)
if (server_capabilities & CAP_LOCK_AND_READ) {
server_lockread = true;
}
+
if (server_capabilities & CAP_EXTENDED_SECURITY) {
+ DATA_BLOB blob1, blob2;
+
if (num_bytes < 16) {
- tevent_req_nterror(req,
- NT_STATUS_INVALID_NETWORK_RESPONSE);
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
return;
}
- cli->secblob = data_blob(bytes+16, num_bytes-16);
+
+ blob1 = data_blob_const(bytes, 16);
+ GUID_from_data_blob(&blob1, &server_guid);
+
+ blob1 = data_blob_const(bytes+16, num_bytes-16);
+ blob2 = data_blob_dup_talloc(state, &blob1);
+ if (blob1.length > 0 &&
+ tevent_req_nomem(blob2.data, req)) {
+ return;
+ }
+ server_gss_blob = blob2;
} else {
- cli->secblob = data_blob(bytes, MIN(num_bytes, 8));
- /* work out if they sent us a workgroup */
- if (num_bytes > 8) {
- ssize_t ret;
- status = smb_bytes_talloc_string(
- cli, (char *)inbuf, &cli->server_domain,
- bytes + 8, num_bytes - 8, &ret);
- if (tevent_req_nterror(req, status)) {
+ DATA_BLOB blob1;
+ ssize_t ret;
+
+ if (num_bytes < key_len) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (key_len != 0 && key_len != 8) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (key_len == 8) {
+ memcpy(server_challenge, bytes, 8);
+ }
+
+ blob1 = data_blob_const(bytes+key_len, num_bytes-key_len);
+ if (blob1.length > 0) {
+ ret = pull_string_talloc(state,
+ (char *)inbuf,
+ SVAL(inbuf, smb_flg2),
+ &server_workgroup,
+ blob1.data, blob1.length,
+ STR_TERMINATE);
+ if (ret == -1) {
+ tevent_req_oom(req);
return;
}
}
@@ -2754,7 +2796,15 @@ static void cli_negprot_done(struct tevent_req *subreq)
(char *)(vwv + 8), cli->serverzone);
server_readbraw = ((SVAL(vwv + 5, 0) & 0x1) != 0);
server_writebraw = ((SVAL(vwv + 5, 0) & 0x2) != 0);
- cli->secblob = data_blob(bytes, MIN(num_bytes, 8));
+
+ if (num_bytes != 0 && num_bytes != 8) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (num_bytes == 8) {
+ memcpy(server_challenge, bytes, 8);
+ }
} else {
/* the old core protocol */
cli->serverzone = get_time_zone(time(NULL));
@@ -2787,6 +2837,13 @@ static void cli_negprot_done(struct tevent_req *subreq)
max_xmit = MIN(client_max_xmit, server_max_xmit);
+ if (server_workgroup) {
+ cli->server_domain = talloc_strdup(cli, server_workgroup);
+ if (tevent_req_nomem(cli->server_domain, req)) {
+ return;
+ }
+ }
+
cli->conn.protocol = protocol;
cli->conn.smb1.server.capabilities = server_capabilities;
@@ -2806,6 +2863,12 @@ static void cli_negprot_done(struct tevent_req *subreq)
cli->conn.smb1.server.session_key = server_session_key;
+ talloc_steal(cli, server_gss_blob.data);
+ cli->conn.smb1.server.gss_blob = server_gss_blob;
+ cli->conn.smb1.server.guid = server_guid;
+ memcpy(cli->conn.smb1.server.challenge, server_challenge, 8);
+ cli->conn.smb1.server.workgroup = talloc_move(cli, &server_workgroup);
+
tevent_req_done(req);
}
diff --git a/source3/libsmb/clientgen.c b/source3/libsmb/clientgen.c
index 80d99a7b66..05cbb9c80c 100644
--- a/source3/libsmb/clientgen.c
+++ b/source3/libsmb/clientgen.c
@@ -399,7 +399,6 @@ static void _cli_shutdown(struct cli_state *cli)
cli_tdis(cli);
}
- data_blob_free(&cli->secblob);
data_blob_free(&cli->user_session_key);
cli_state_disconnect(cli);
@@ -568,18 +567,12 @@ uint16_t cli_state_max_requests(struct cli_state *cli)
const uint8_t *cli_state_server_challenge(struct cli_state *cli)
{
- static const uint8_t zero;
-
- if (cli->secblob.length == 8)
- return cli->secblob.data;
- }
-
- return zero;
+ return cli->conn.smb1.server.challenge;
}
const DATA_BLOB *cli_state_server_gss_blob(struct cli_state *cli)
{
- return &cli->secblob;
+ return &cli->conn.smb1.server.gss_blob;
}
uint16_t cli_state_security_mode(struct cli_state *cli)
generated by cgit (git 2.34.1) at 2024-11-17 14:25:26 +0000