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path: root/source4/auth/ntlmssp/ntlmssp_sign.c
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Diffstat (limited to 'source4/auth/ntlmssp/ntlmssp_sign.c')
-rw-r--r--source4/auth/ntlmssp/ntlmssp_sign.c111
1 files changed, 66 insertions, 45 deletions
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;
generated by cgit (git 2.34.1) at 2024-11-01 19:58:06 +0000