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authorAndrew Bartlett <abartlet@samba.org>2005-05-11 19:22:22 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:16:40 -0500
commitc64ac2fc5a084203ed277ba0d71c67a02872d92e (patch)
tree57f5e24fac293f125c84467e8250575465ae6c57 /source4
parent0aef77698e0f927b9d492edc56195217b1b59c07 (diff)
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r6738: My version of the patch by metze that I just reverted (-r 6734).
This also includes other changes to reduce memory use by GENSEC when not being used for sign/seal operations. This should lower tridge's K 'per connection' benchmark further. Andrew Bartlett (This used to be commit 4a5829401b20c10091185bbd93236477523459b2)
Diffstat (limited to 'source4')
-rw-r--r--source4/auth/ntlmssp/ntlmssp.h2
-rw-r--r--source4/auth/ntlmssp/ntlmssp_server.c26
-rw-r--r--source4/auth/ntlmssp/ntlmssp_sign.c111
3 files changed, 83 insertions, 56 deletions
diff --git a/source4/auth/ntlmssp/ntlmssp.h b/source4/auth/ntlmssp/ntlmssp.h
index 270beb151f..9d6b827fbc 100644
--- a/source4/auth/ntlmssp/ntlmssp.h
+++ b/source4/auth/ntlmssp/ntlmssp.h
@@ -178,7 +178,7 @@ struct gensec_ntlmssp_state
/* internal variables used by NTLM2 */
uint8_t session_nonce[16];
} ntlm2;
- };
+ } crypt;
struct auth_context *auth_context;
struct auth_serversupplied_info *server_info;
diff --git a/source4/auth/ntlmssp/ntlmssp_server.c b/source4/auth/ntlmssp/ntlmssp_server.c
index c54d30abdc..db169684d6 100644
--- a/source4/auth/ntlmssp/ntlmssp_server.c
+++ b/source4/auth/ntlmssp/ntlmssp_server.c
@@ -350,11 +350,11 @@ static NTSTATUS ntlmssp_server_preauth(struct gensec_ntlmssp_state *gensec_ntlms
gensec_ntlmssp_state->doing_ntlm2 = True;
- memcpy(gensec_ntlmssp_state->ntlm2.session_nonce, gensec_ntlmssp_state->internal_chal.data, 8);
- memcpy(&gensec_ntlmssp_state->ntlm2.session_nonce[8], gensec_ntlmssp_state->lm_resp.data, 8);
+ memcpy(gensec_ntlmssp_state->crypt.ntlm2.session_nonce, gensec_ntlmssp_state->internal_chal.data, 8);
+ memcpy(&gensec_ntlmssp_state->crypt.ntlm2.session_nonce[8], gensec_ntlmssp_state->lm_resp.data, 8);
MD5Init(&md5_session_nonce_ctx);
- MD5Update(&md5_session_nonce_ctx, gensec_ntlmssp_state->ntlm2.session_nonce, 16);
+ MD5Update(&md5_session_nonce_ctx, gensec_ntlmssp_state->crypt.ntlm2.session_nonce, 16);
MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
gensec_ntlmssp_state->chal = data_blob_talloc(gensec_ntlmssp_state,
@@ -366,7 +366,7 @@ static NTSTATUS ntlmssp_server_preauth(struct gensec_ntlmssp_state *gensec_ntlms
/* We changed the effective challenge - set it */
if (!NT_STATUS_IS_OK(nt_status =
gensec_ntlmssp_state->set_challenge(gensec_ntlmssp_state,
- &gensec_ntlmssp_state->chal))) {
+ &gensec_ntlmssp_state->chal))) {
/* zero this out */
data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
return nt_status;
@@ -387,10 +387,11 @@ static NTSTATUS ntlmssp_server_preauth(struct gensec_ntlmssp_state *gensec_ntlms
* @return Errors or NT_STATUS_OK.
*/
-static NTSTATUS ntlmssp_server_postauth(struct gensec_ntlmssp_state *gensec_ntlmssp_state,
+static NTSTATUS ntlmssp_server_postauth(struct gensec_security *gensec_security,
DATA_BLOB *user_session_key,
DATA_BLOB *lm_session_key)
{
+ struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
NTSTATUS nt_status;
DATA_BLOB session_key = data_blob(NULL, 0);
@@ -404,8 +405,8 @@ static NTSTATUS ntlmssp_server_postauth(struct gensec_ntlmssp_state *gensec_ntlm
if (gensec_ntlmssp_state->doing_ntlm2) {
if (user_session_key && user_session_key->data && user_session_key->length == 16) {
session_key = data_blob_talloc(gensec_ntlmssp_state, NULL, 16);
- hmac_md5(user_session_key->data, gensec_ntlmssp_state->ntlm2.session_nonce,
- sizeof(gensec_ntlmssp_state->ntlm2.session_nonce), session_key.data);
+ hmac_md5(user_session_key->data, gensec_ntlmssp_state->crypt.ntlm2.session_nonce,
+ sizeof(gensec_ntlmssp_state->crypt.ntlm2.session_nonce), session_key.data);
DEBUG(10,("ntlmssp_server_auth: Created NTLM2 session key.\n"));
dump_data_pw("NTLM2 session key:\n", session_key.data, session_key.length);
@@ -500,7 +501,12 @@ static NTSTATUS ntlmssp_server_postauth(struct gensec_ntlmssp_state *gensec_ntlm
/* The server might need us to use a partial-strength session key */
ntlmssp_weaken_keys(gensec_ntlmssp_state);
- nt_status = ntlmssp_sign_init(gensec_ntlmssp_state);
+ if ((gensec_security->want_features & GENSEC_FEATURE_SIGN)
+ || (gensec_security->want_features & GENSEC_FEATURE_SEAL)) {
+ nt_status = ntlmssp_sign_init(gensec_ntlmssp_state);
+ } else {
+ nt_status = NT_STATUS_OK;
+ }
data_blob_free(&gensec_ntlmssp_state->encrypted_session_key);
@@ -531,7 +537,7 @@ static NTSTATUS ntlmssp_server_postauth(struct gensec_ntlmssp_state *gensec_ntlm
NTSTATUS ntlmssp_server_auth(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out)
-{
+{
struct gensec_ntlmssp_state *gensec_ntlmssp_state = gensec_security->private_data;
DATA_BLOB user_session_key = data_blob(NULL, 0);
DATA_BLOB lm_session_key = data_blob(NULL, 0);
@@ -559,7 +565,7 @@ NTSTATUS ntlmssp_server_auth(struct gensec_security *gensec_security,
}
if (gensec_ntlmssp_state->server_use_session_keys) {
- return ntlmssp_server_postauth(gensec_ntlmssp_state, &user_session_key, &lm_session_key);
+ return ntlmssp_server_postauth(gensec_security, &user_session_key, &lm_session_key);
} else {
gensec_ntlmssp_state->session_key = data_blob(NULL, 0);
return NT_STATUS_OK;
diff --git a/source4/auth/ntlmssp/ntlmssp_sign.c b/source4/auth/ntlmssp/ntlmssp_sign.c
index 2a8073ded6..d8a5a0f909 100644
--- a/source4/auth/ntlmssp/ntlmssp_sign.c
+++ b/source4/auth/ntlmssp/ntlmssp_sign.c
@@ -78,16 +78,16 @@ static NTSTATUS ntlmssp_make_packet_signature(struct gensec_ntlmssp_state *gense
switch (direction) {
case NTLMSSP_SEND:
- SIVAL(seq_num, 0, gensec_ntlmssp_state->ntlm2.send_seq_num);
- gensec_ntlmssp_state->ntlm2.send_seq_num++;
- hmac_md5_init_limK_to_64(gensec_ntlmssp_state->ntlm2.send_sign_key.data,
- gensec_ntlmssp_state->ntlm2.send_sign_key.length, &ctx);
+ SIVAL(seq_num, 0, gensec_ntlmssp_state->crypt.ntlm2.send_seq_num);
+ gensec_ntlmssp_state->crypt.ntlm2.send_seq_num++;
+ hmac_md5_init_limK_to_64(gensec_ntlmssp_state->crypt.ntlm2.send_sign_key.data,
+ gensec_ntlmssp_state->crypt.ntlm2.send_sign_key.length, &ctx);
break;
case NTLMSSP_RECEIVE:
- SIVAL(seq_num, 0, gensec_ntlmssp_state->ntlm2.recv_seq_num);
- gensec_ntlmssp_state->ntlm2.recv_seq_num++;
- hmac_md5_init_limK_to_64(gensec_ntlmssp_state->ntlm2.recv_sign_key.data,
- gensec_ntlmssp_state->ntlm2.recv_sign_key.length, &ctx);
+ SIVAL(seq_num, 0, gensec_ntlmssp_state->crypt.ntlm2.recv_seq_num);
+ gensec_ntlmssp_state->crypt.ntlm2.recv_seq_num++;
+ hmac_md5_init_limK_to_64(gensec_ntlmssp_state->crypt.ntlm2.recv_sign_key.data,
+ gensec_ntlmssp_state->crypt.ntlm2.recv_sign_key.length, &ctx);
break;
}
hmac_md5_update(seq_num, sizeof(seq_num), &ctx);
@@ -97,10 +97,10 @@ static NTSTATUS ntlmssp_make_packet_signature(struct gensec_ntlmssp_state *gense
if (encrypt_sig && gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
switch (direction) {
case NTLMSSP_SEND:
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state, digest, 8);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state, digest, 8);
break;
case NTLMSSP_RECEIVE:
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm2.recv_seal_arcfour_state, digest, 8);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm2.recv_seal_arcfour_state, digest, 8);
break;
}
}
@@ -112,12 +112,12 @@ static NTSTATUS ntlmssp_make_packet_signature(struct gensec_ntlmssp_state *gense
} else {
uint32_t crc;
crc = crc32_calc_buffer(data, length);
- if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, gensec_ntlmssp_state->ntlm.seq_num)) {
+ if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, gensec_ntlmssp_state->crypt.ntlm.seq_num)) {
return NT_STATUS_NO_MEMORY;
}
- gensec_ntlmssp_state->ntlm.seq_num++;
+ gensec_ntlmssp_state->crypt.ntlm.seq_num++;
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm.arcfour_state, sig->data+4, sig->length-4);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm.arcfour_state, sig->data+4, sig->length-4);
}
dump_data_pw("calculated ntlmssp signature\n", sig->data, sig->length);
return NT_STATUS_OK;
@@ -136,6 +136,11 @@ NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
return NT_STATUS_NO_USER_SESSION_KEY;
}
+ if (!(gensec_security->want_features & GENSEC_FEATURE_SIGN)) {
+ DEBUG(3, ("GENSEC Signing not requested - cannot seal packet!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
if (!gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
DEBUG(3, ("NTLMSSP Signing not negotiated - cannot sign packet!\n"));
return NT_STATUS_INVALID_PARAMETER;
@@ -168,6 +173,11 @@ NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
return NT_STATUS_NO_USER_SESSION_KEY;
}
+ if (!(gensec_security->want_features & (GENSEC_FEATURE_SEAL|GENSEC_FEATURE_SIGN))) {
+ DEBUG(3, ("GENSEC Signing/Sealing not requested - cannot check packet!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
if (sig->length < 8) {
DEBUG(0, ("NTLMSSP packet check failed due to short signature (%lu bytes)!\n",
(unsigned long)sig->length));
@@ -234,11 +244,17 @@ NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
return NT_STATUS_NO_USER_SESSION_KEY;
}
+ if (!(gensec_security->want_features & GENSEC_FEATURE_SEAL)) {
+ DEBUG(3, ("GENSEC Sealing not requested - cannot seal packet!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
if (!gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
DEBUG(3, ("NTLMSSP Sealing not negotiated - cannot seal packet!\n"));
return NT_STATUS_INVALID_PARAMETER;
}
+
DEBUG(10,("ntlmssp_seal_data: seal\n"));
dump_data_pw("ntlmssp clear data\n", data, length);
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
@@ -249,14 +265,14 @@ NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
data, length,
whole_pdu, pdu_length,
NTLMSSP_SEND, sig, False);
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state, data, length);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state, data, length);
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state, sig->data+4, 8);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state, sig->data+4, 8);
}
} else {
uint32_t crc;
crc = crc32_calc_buffer(data, length);
- if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, gensec_ntlmssp_state->ntlm.seq_num)) {
+ if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, gensec_ntlmssp_state->crypt.ntlm.seq_num)) {
return NT_STATUS_NO_MEMORY;
}
@@ -266,10 +282,10 @@ NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
constant, but is is rather updated with each
iteration */
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm.arcfour_state, data, length);
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm.arcfour_state, sig->data+4, sig->length-4);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm.arcfour_state, data, length);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm.arcfour_state, sig->data+4, sig->length-4);
/* increment counter on send */
- gensec_ntlmssp_state->ntlm.seq_num++;
+ gensec_ntlmssp_state->crypt.ntlm.seq_num++;
nt_status = NT_STATUS_OK;
}
dump_data_pw("ntlmssp signature\n", sig->data, sig->length);
@@ -301,9 +317,14 @@ NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
return NT_STATUS_NO_USER_SESSION_KEY;
}
+ if (!(gensec_security->want_features & GENSEC_FEATURE_SEAL)) {
+ DEBUG(3, ("GENSEC Sealing not requested - cannot unseal packet!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
dump_data_pw("ntlmssp sealed data\n", data, length);
if (gensec_ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm2.recv_seal_arcfour_state, data, length);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm2.recv_seal_arcfour_state, data, length);
nt_status = ntlmssp_make_packet_signature(gensec_ntlmssp_state, sig_mem_ctx,
data, length,
@@ -329,7 +350,7 @@ NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
dump_data_pw("ntlmssp clear data\n", data, length);
return NT_STATUS_OK;
} else {
- arcfour_crypt_sbox(gensec_ntlmssp_state->ntlm.arcfour_state, data, length);
+ arcfour_crypt_sbox(gensec_ntlmssp_state->crypt.ntlm.arcfour_state, data, length);
dump_data_pw("ntlmssp clear data\n", data, length);
return gensec_ntlmssp_check_packet(gensec_security, sig_mem_ctx, data, length, whole_pdu, pdu_length, sig);
}
@@ -379,10 +400,10 @@ NTSTATUS ntlmssp_sign_init(struct gensec_ntlmssp_state *gensec_ntlmssp_state)
return NT_STATUS_INTERNAL_ERROR;
}
- gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state = talloc(gensec_ntlmssp_state, struct arcfour_state);
- NT_STATUS_HAVE_NO_MEMORY(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state);
- gensec_ntlmssp_state->ntlm2.recv_seal_arcfour_state = talloc(gensec_ntlmssp_state, struct arcfour_state);
- NT_STATUS_HAVE_NO_MEMORY(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state);
+ gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state = talloc(gensec_ntlmssp_state, struct arcfour_state);
+ NT_STATUS_HAVE_NO_MEMORY(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state);
+ gensec_ntlmssp_state->crypt.ntlm2.recv_seal_arcfour_state = talloc(gensec_ntlmssp_state, struct arcfour_state);
+ NT_STATUS_HAVE_NO_MEMORY(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state);
/**
Weaken NTLMSSP keys to cope with down-level clients, servers and export restrictions.
@@ -404,11 +425,11 @@ NTSTATUS ntlmssp_sign_init(struct gensec_ntlmssp_state *gensec_ntlmssp_state)
/* SEND */
calc_ntlmv2_key(gensec_ntlmssp_state,
- &gensec_ntlmssp_state->ntlm2.send_sign_key,
+ &gensec_ntlmssp_state->crypt.ntlm2.send_sign_key,
gensec_ntlmssp_state->session_key, send_sign_const);
dump_data_pw("NTLMSSP send sign key:\n",
- gensec_ntlmssp_state->ntlm2.send_sign_key.data,
- gensec_ntlmssp_state->ntlm2.send_sign_key.length);
+ gensec_ntlmssp_state->crypt.ntlm2.send_sign_key.data,
+ gensec_ntlmssp_state->crypt.ntlm2.send_sign_key.length);
calc_ntlmv2_key(gensec_ntlmssp_state,
&send_seal_key,
@@ -417,20 +438,20 @@ NTSTATUS ntlmssp_sign_init(struct gensec_ntlmssp_state *gensec_ntlmssp_state)
send_seal_key.data,
send_seal_key.length);
- arcfour_init(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state,
+ arcfour_init(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state,
&send_seal_key);
dump_data_pw("NTLMSSP send sesl hash:\n",
- gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state->sbox,
- sizeof(gensec_ntlmssp_state->ntlm2.send_seal_arcfour_state->sbox));
+ gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state->sbox,
+ sizeof(gensec_ntlmssp_state->crypt.ntlm2.send_seal_arcfour_state->sbox));
/* RECV */
calc_ntlmv2_key(gensec_ntlmssp_state,
- &gensec_ntlmssp_state->ntlm2.recv_sign_key,
+ &gensec_ntlmssp_state->crypt.ntlm2.recv_sign_key,
gensec_ntlmssp_state->session_key, recv_sign_const);
dump_data_pw("NTLMSSP recv sign key:\n",
- gensec_ntlmssp_state->ntlm2.recv_sign_key.data,
- gensec_ntlmssp_state->ntlm2.recv_sign_key.length);
+ gensec_ntlmssp_state->crypt.ntlm2.recv_sign_key.data,
+ gensec_ntlmssp_state->crypt.ntlm2.recv_sign_key.length);
calc_ntlmv2_key(gensec_ntlmssp_state,
&recv_seal_key,
@@ -438,28 +459,28 @@ NTSTATUS ntlmssp_sign_init(struct gensec_ntlmssp_state *gensec_ntlmssp_state)
dump_data_pw("NTLMSSP recv seal key:\n",
recv_seal_key.data,
recv_seal_key.length);
- arcfour_init(gensec_ntlmssp_state->ntlm2.recv_seal_arcfour_state,
+ arcfour_init(gensec_ntlmssp_state->crypt.ntlm2.recv_seal_arcfour_state,
&recv_seal_key);
dump_data_pw("NTLMSSP receive seal hash:\n",
- gensec_ntlmssp_state->ntlm2.recv_seal_arcfour_state->sbox,
- sizeof(gensec_ntlmssp_state->ntlm2.recv_seal_arcfour_state->sbox));
+ gensec_ntlmssp_state->crypt.ntlm2.recv_seal_arcfour_state->sbox,
+ sizeof(gensec_ntlmssp_state->crypt.ntlm2.recv_seal_arcfour_state->sbox));
- gensec_ntlmssp_state->ntlm2.send_seq_num = 0;
- gensec_ntlmssp_state->ntlm2.recv_seq_num = 0;
+ gensec_ntlmssp_state->crypt.ntlm2.send_seq_num = 0;
+ gensec_ntlmssp_state->crypt.ntlm2.recv_seq_num = 0;
} else {
DEBUG(5, ("NTLMSSP Sign/Seal - using NTLM1\n"));
- gensec_ntlmssp_state->ntlm.arcfour_state = talloc(gensec_ntlmssp_state, struct arcfour_state);
- NT_STATUS_HAVE_NO_MEMORY(gensec_ntlmssp_state->ntlm.arcfour_state);
+ gensec_ntlmssp_state->crypt.ntlm.arcfour_state = talloc(gensec_ntlmssp_state, struct arcfour_state);
+ NT_STATUS_HAVE_NO_MEMORY(gensec_ntlmssp_state->crypt.ntlm.arcfour_state);
- arcfour_init(gensec_ntlmssp_state->ntlm.arcfour_state,
+ arcfour_init(gensec_ntlmssp_state->crypt.ntlm.arcfour_state,
&gensec_ntlmssp_state->session_key);
- dump_data_pw("NTLMSSP hash:\n", gensec_ntlmssp_state->ntlm.arcfour_state->sbox,
- sizeof(gensec_ntlmssp_state->ntlm.arcfour_state->sbox));
+ dump_data_pw("NTLMSSP hash:\n", gensec_ntlmssp_state->crypt.ntlm.arcfour_state->sbox,
+ sizeof(gensec_ntlmssp_state->crypt.ntlm.arcfour_state->sbox));
- gensec_ntlmssp_state->ntlm.seq_num = 0;
+ gensec_ntlmssp_state->crypt.ntlm.seq_num = 0;
}
return NT_STATUS_OK;