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-rw-r--r--source4/auth/ntlmssp/ntlmssp.h39
-rw-r--r--source4/auth/ntlmssp/ntlmssp_server.c10
-rw-r--r--source4/auth/ntlmssp/ntlmssp_sign.c94
3 files changed, 74 insertions, 69 deletions
diff --git a/source4/auth/ntlmssp/ntlmssp.h b/source4/auth/ntlmssp/ntlmssp.h
index 2aa9aea810..65292b438b 100644
--- a/source4/auth/ntlmssp/ntlmssp.h
+++ b/source4/auth/ntlmssp/ntlmssp.h
@@ -106,10 +106,6 @@ struct ntlmssp_state
uint32_t neg_flags; /* the current state of negotiation with the NTLMSSP partner */
- /* internal variables used by NTLM2 */
- BOOL doing_ntlm2;
- uint8_t session_nonce[16];
-
/* internal variables used by KEY_EXCH (client-supplied user session key */
DATA_BLOB encrypted_session_key;
@@ -162,21 +158,28 @@ struct ntlmssp_state
const char *server_name;
const char *(*get_domain)(void);
- /* SMB Signing */
- uint32_t ntlm_seq_num;
- uint32_t ntlm2_send_seq_num;
- uint32_t ntlm2_recv_seq_num;
-
- /* ntlmv2 */
- DATA_BLOB send_sign_key;
- DATA_BLOB recv_sign_key;
-
- struct arcfour_state *send_seal_hash;
- struct arcfour_state *recv_seal_hash;
-
- /* ntlmv1 */
- struct arcfour_state *ntlmssp_hash;
+ BOOL doing_ntlm2;
+ union {
+ /* NTLM */
+ struct {
+ uint32_t seq_num;
+ struct arcfour_state *arcfour_state;
+ } ntlm;
+
+ /* NTLM2 */
+ struct {
+ uint32_t send_seq_num;
+ uint32_t recv_seq_num;
+ DATA_BLOB send_sign_key;
+ DATA_BLOB recv_sign_key;
+ struct arcfour_state *send_seal_arcfour_state;
+ struct arcfour_state *recv_seal_arcfour_state;
+
+ /* internal variables used by NTLM2 */
+ uint8_t session_nonce[16];
+ } ntlm2;
+ };
};
struct gensec_ntlmssp_state {
diff --git a/source4/auth/ntlmssp/ntlmssp_server.c b/source4/auth/ntlmssp/ntlmssp_server.c
index 374fafc0e5..74d3c722d7 100644
--- a/source4/auth/ntlmssp/ntlmssp_server.c
+++ b/source4/auth/ntlmssp/ntlmssp_server.c
@@ -386,11 +386,11 @@ static NTSTATUS ntlmssp_server_preauth(struct ntlmssp_state *ntlmssp_state,
ntlmssp_state->doing_ntlm2 = True;
- memcpy(ntlmssp_state->session_nonce, ntlmssp_state->internal_chal.data, 8);
- memcpy(&ntlmssp_state->session_nonce[8], ntlmssp_state->lm_resp.data, 8);
+ memcpy(ntlmssp_state->ntlm2.session_nonce, ntlmssp_state->internal_chal.data, 8);
+ memcpy(&ntlmssp_state->ntlm2.session_nonce[8], ntlmssp_state->lm_resp.data, 8);
MD5Init(&md5_session_nonce_ctx);
- MD5Update(&md5_session_nonce_ctx, ntlmssp_state->session_nonce, 16);
+ MD5Update(&md5_session_nonce_ctx, ntlmssp_state->ntlm2.session_nonce, 16);
MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
ntlmssp_state->chal = data_blob_talloc(ntlmssp_state,
@@ -440,8 +440,8 @@ static NTSTATUS ntlmssp_server_postauth(struct ntlmssp_state *ntlmssp_state,
if (ntlmssp_state->doing_ntlm2) {
if (user_session_key && user_session_key->data && user_session_key->length == 16) {
session_key = data_blob_talloc(ntlmssp_state, NULL, 16);
- hmac_md5(user_session_key->data, ntlmssp_state->session_nonce,
- sizeof(ntlmssp_state->session_nonce), session_key.data);
+ hmac_md5(user_session_key->data, ntlmssp_state->ntlm2.session_nonce,
+ sizeof(ntlmssp_state->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);
diff --git a/source4/auth/ntlmssp/ntlmssp_sign.c b/source4/auth/ntlmssp/ntlmssp_sign.c
index a47a0f334a..29204b3460 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 ntlmssp_state *ntlmssp_stat
switch (direction) {
case NTLMSSP_SEND:
- SIVAL(seq_num, 0, ntlmssp_state->ntlm2_send_seq_num);
- ntlmssp_state->ntlm2_send_seq_num++;
- hmac_md5_init_limK_to_64(ntlmssp_state->send_sign_key.data,
- ntlmssp_state->send_sign_key.length, &ctx);
+ SIVAL(seq_num, 0, ntlmssp_state->ntlm2.send_seq_num);
+ ntlmssp_state->ntlm2.send_seq_num++;
+ hmac_md5_init_limK_to_64(ntlmssp_state->ntlm2.send_sign_key.data,
+ ntlmssp_state->ntlm2.send_sign_key.length, &ctx);
break;
case NTLMSSP_RECEIVE:
- SIVAL(seq_num, 0, ntlmssp_state->ntlm2_recv_seq_num);
- ntlmssp_state->ntlm2_recv_seq_num++;
- hmac_md5_init_limK_to_64(ntlmssp_state->recv_sign_key.data,
- ntlmssp_state->recv_sign_key.length, &ctx);
+ SIVAL(seq_num, 0, ntlmssp_state->ntlm2.recv_seq_num);
+ ntlmssp_state->ntlm2.recv_seq_num++;
+ hmac_md5_init_limK_to_64(ntlmssp_state->ntlm2.recv_sign_key.data,
+ ntlmssp_state->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 ntlmssp_state *ntlmssp_stat
if (encrypt_sig && ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
switch (direction) {
case NTLMSSP_SEND:
- arcfour_crypt_sbox(ntlmssp_state->send_seal_hash, digest, 8);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm2.send_seal_arcfour_state, digest, 8);
break;
case NTLMSSP_RECEIVE:
- arcfour_crypt_sbox(ntlmssp_state->recv_seal_hash, digest, 8);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm2.recv_seal_arcfour_state, digest, 8);
break;
}
}
@@ -112,12 +112,12 @@ static NTSTATUS ntlmssp_make_packet_signature(struct ntlmssp_state *ntlmssp_stat
} else {
uint32_t crc;
crc = crc32_calc_buffer(data, length);
- if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlm_seq_num)) {
+ if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlm.seq_num)) {
return NT_STATUS_NO_MEMORY;
}
- ntlmssp_state->ntlm_seq_num++;
+ ntlmssp_state->ntlm.seq_num++;
- arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, sig->data+4, sig->length-4);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm.arcfour_state, sig->data+4, sig->length-4);
}
dump_data_pw("calculated ntlmssp signature\n", sig->data, sig->length);
return NT_STATUS_OK;
@@ -252,14 +252,14 @@ NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
data, length,
whole_pdu, pdu_length,
NTLMSSP_SEND, sig, False);
- arcfour_crypt_sbox(ntlmssp_state->send_seal_hash, data, length);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm2.send_seal_arcfour_state, data, length);
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
- arcfour_crypt_sbox(ntlmssp_state->send_seal_hash, sig->data+4, 8);
+ arcfour_crypt_sbox(ntlmssp_state->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, ntlmssp_state->ntlm_seq_num)) {
+ if (!msrpc_gen(sig_mem_ctx, sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlm.seq_num)) {
return NT_STATUS_NO_MEMORY;
}
@@ -269,10 +269,10 @@ NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
constant, but is is rather updated with each
iteration */
- arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, data, length);
- arcfour_crypt_sbox(ntlmssp_state->ntlmssp_hash, sig->data+4, sig->length-4);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm.arcfour_state, data, length);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm.arcfour_state, sig->data+4, sig->length-4);
/* increment counter on send */
- ntlmssp_state->ntlm_seq_num++;
+ ntlmssp_state->ntlm.seq_num++;
nt_status = NT_STATUS_OK;
}
dump_data_pw("ntlmssp signature\n", sig->data, sig->length);
@@ -307,7 +307,7 @@ NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
dump_data_pw("ntlmssp sealed data\n", data, length);
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- arcfour_crypt_sbox(ntlmssp_state->recv_seal_hash, data, length);
+ arcfour_crypt_sbox(ntlmssp_state->ntlm2.recv_seal_arcfour_state, data, length);
nt_status = ntlmssp_make_packet_signature(ntlmssp_state, sig_mem_ctx,
data, length,
@@ -333,7 +333,7 @@ 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(ntlmssp_state->ntlmssp_hash, data, length);
+ arcfour_crypt_sbox(ntlmssp_state->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);
}
@@ -383,10 +383,10 @@ NTSTATUS ntlmssp_sign_init(struct ntlmssp_state *ntlmssp_state)
return NT_STATUS_INTERNAL_ERROR;
}
- ntlmssp_state->send_seal_hash = talloc(ntlmssp_state, struct arcfour_state);
- NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->send_seal_hash);
- ntlmssp_state->recv_seal_hash = talloc(ntlmssp_state, struct arcfour_state);
- NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->recv_seal_hash);
+ ntlmssp_state->ntlm2.send_seal_arcfour_state = talloc(ntlmssp_state, struct arcfour_state);
+ NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->ntlm2.send_seal_arcfour_state);
+ ntlmssp_state->ntlm2.recv_seal_arcfour_state = talloc(ntlmssp_state, struct arcfour_state);
+ NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->ntlm2.send_seal_arcfour_state);
/**
Weaken NTLMSSP keys to cope with down-level clients, servers and export restrictions.
@@ -408,11 +408,11 @@ NTSTATUS ntlmssp_sign_init(struct ntlmssp_state *ntlmssp_state)
/* SEND */
calc_ntlmv2_key(ntlmssp_state,
- &ntlmssp_state->send_sign_key,
+ &ntlmssp_state->ntlm2.send_sign_key,
ntlmssp_state->session_key, send_sign_const);
dump_data_pw("NTLMSSP send sign key:\n",
- ntlmssp_state->send_sign_key.data,
- ntlmssp_state->send_sign_key.length);
+ ntlmssp_state->ntlm2.send_sign_key.data,
+ ntlmssp_state->ntlm2.send_sign_key.length);
calc_ntlmv2_key(ntlmssp_state,
&send_seal_key,
@@ -421,20 +421,20 @@ NTSTATUS ntlmssp_sign_init(struct ntlmssp_state *ntlmssp_state)
send_seal_key.data,
send_seal_key.length);
- arcfour_init(ntlmssp_state->send_seal_hash,
+ arcfour_init(ntlmssp_state->ntlm2.send_seal_arcfour_state,
&send_seal_key);
dump_data_pw("NTLMSSP send sesl hash:\n",
- ntlmssp_state->send_seal_hash->sbox,
- sizeof(ntlmssp_state->send_seal_hash->sbox));
+ ntlmssp_state->ntlm2.send_seal_arcfour_state->sbox,
+ sizeof(ntlmssp_state->ntlm2.send_seal_arcfour_state->sbox));
/* RECV */
calc_ntlmv2_key(ntlmssp_state,
- &ntlmssp_state->recv_sign_key,
+ &ntlmssp_state->ntlm2.recv_sign_key,
ntlmssp_state->session_key, recv_sign_const);
dump_data_pw("NTLMSSP recv sign key:\n",
- ntlmssp_state->recv_sign_key.data,
- ntlmssp_state->recv_sign_key.length);
+ ntlmssp_state->ntlm2.recv_sign_key.data,
+ ntlmssp_state->ntlm2.recv_sign_key.length);
calc_ntlmv2_key(ntlmssp_state,
&recv_seal_key,
@@ -442,27 +442,29 @@ NTSTATUS ntlmssp_sign_init(struct ntlmssp_state *ntlmssp_state)
dump_data_pw("NTLMSSP recv seal key:\n",
recv_seal_key.data,
recv_seal_key.length);
- arcfour_init(ntlmssp_state->recv_seal_hash,
+ arcfour_init(ntlmssp_state->ntlm2.recv_seal_arcfour_state,
&recv_seal_key);
dump_data_pw("NTLMSSP receive seal hash:\n",
- ntlmssp_state->recv_seal_hash->sbox,
- sizeof(ntlmssp_state->recv_seal_hash->sbox));
+ ntlmssp_state->ntlm2.recv_seal_arcfour_state->sbox,
+ sizeof(ntlmssp_state->ntlm2.recv_seal_arcfour_state->sbox));
+
+ ntlmssp_state->ntlm2.send_seq_num = 0;
+ ntlmssp_state->ntlm2.recv_seq_num = 0;
+
} else {
DEBUG(5, ("NTLMSSP Sign/Seal - using NTLM1\n"));
- ntlmssp_state->ntlmssp_hash = talloc(ntlmssp_state, struct arcfour_state);
- NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->ntlmssp_hash);
+ ntlmssp_state->ntlm.arcfour_state = talloc(ntlmssp_state, struct arcfour_state);
+ NT_STATUS_HAVE_NO_MEMORY(ntlmssp_state->ntlm.arcfour_state);
- arcfour_init(ntlmssp_state->ntlmssp_hash,
+ arcfour_init(ntlmssp_state->ntlm.arcfour_state,
&ntlmssp_state->session_key);
- dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlmssp_hash->sbox,
- sizeof(ntlmssp_state->ntlmssp_hash->sbox));
- }
+ dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlm.arcfour_state->sbox,
+ sizeof(ntlmssp_state->ntlm.arcfour_state->sbox));
- ntlmssp_state->ntlm_seq_num = 0;
- ntlmssp_state->ntlm2_send_seq_num = 0;
- ntlmssp_state->ntlm2_recv_seq_num = 0;
+ ntlmssp_state->ntlm.seq_num = 0;
+ }
return NT_STATUS_OK;
}