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-rw-r--r--source3/include/rpc_dce.h4
-rw-r--r--source3/rpc_client/cli_pipe.c37
-rw-r--r--source3/rpc_parse/parse_prs.c14
-rw-r--r--source3/rpc_parse/parse_rpc.c14
-rw-r--r--source3/rpc_server/srv_pipe.c12
5 files changed, 49 insertions, 32 deletions
diff --git a/source3/include/rpc_dce.h b/source3/include/rpc_dce.h
index 22dae7ce36..b99639d68d 100644
--- a/source3/include/rpc_dce.h
+++ b/source3/include/rpc_dce.h
@@ -211,8 +211,8 @@ typedef struct rpc_hdr_auth_info
/* RPC_AUTH_NETSEC_NEG */
typedef struct rpc_auth_netsec_neg_info
{
- uint32 unknown1;
- uint32 unknown2;
+ uint32 type1; /* Always zero ? */
+ uint32 type2; /* Types 0x3 and 0x13 seen. Check AcquireSecurityContext() docs.... */
fstring domain; /* calling workstations's domain */
fstring myname; /* calling workstation's name */
} RPC_AUTH_NETSEC_NEG;
diff --git a/source3/rpc_client/cli_pipe.c b/source3/rpc_client/cli_pipe.c
index 93c6b98bc3..a0be3d9774 100644
--- a/source3/rpc_client/cli_pipe.c
+++ b/source3/rpc_client/cli_pipe.c
@@ -193,8 +193,8 @@ static BOOL rpc_auth_pipe(struct cli_state *cli, prs_struct *rdata, int len, int
BOOL auth_seal = ((cli->ntlmssp_srv_flgs & NTLMSSP_NEGOTIATE_SEAL) != 0);
BOOL auth_schannel = (cli->saved_netlogon_pipe_fnum != 0);
- DEBUG(5,("rpc_auth_pipe: len: %d auth_len: %d verify %s seal %s\n",
- len, auth_len, BOOLSTR(auth_verify), BOOLSTR(auth_seal)));
+ DEBUG(5,("rpc_auth_pipe: len: %d auth_len: %d verify %s seal %s schannel %s\n",
+ len, auth_len, BOOLSTR(auth_verify), BOOLSTR(auth_seal), BOOLSTR(auth_schannel)));
/*
* Unseal any sealed data in the PDU, not including the
@@ -302,16 +302,16 @@ static BOOL rpc_auth_pipe(struct cli_state *cli, prs_struct *rdata, int len, int
prs_struct auth_verf;
if (auth_len != RPC_AUTH_NETSEC_CHK_LEN) {
- DEBUG(0,("rpc_auth_pipe: wrong auth len %d\n", auth_len));
+ DEBUG(0,("rpc_auth_pipe: wrong schannel auth len %d\n", auth_len));
return False;
}
if (dp - prs_data_p(rdata) > prs_data_size(rdata)) {
- DEBUG(0,("rpc_auth_pipe: auth data > data size !\n"));
+ DEBUG(0,("rpc_auth_pipe: schannel auth data > data size !\n"));
return False;
}
- DEBUG(10,("rpc_auth_pipe: verify netsec\n"));
+ DEBUG(10,("rpc_auth_pipe: schannel verify netsec\n"));
dump_data(100, dp, auth_len);
memcpy(data, dp, sizeof(data));
@@ -324,17 +324,18 @@ static BOOL rpc_auth_pipe(struct cli_state *cli, prs_struct *rdata, int len, int
prs_give_memory(&auth_verf, data, RPC_AUTH_NETSEC_CHK_LEN, False);
- if (!smb_io_rpc_auth_netsec_chk("auth_sign", &chk, &auth_verf, 0)) {
- DEBUG(0, ("rpc_auth_pipe: unmarshalling "
+ if (!smb_io_rpc_auth_netsec_chk("schannel_auth_sign", &chk, &auth_verf, 0)) {
+ DEBUG(0, ("rpc_auth_pipe: schannel unmarshalling "
"RPC_AUTH_NETSECK_CHK failed\n"));
return False;
}
+ cli->auth_info.seq_num++;
+
if (!netsec_decode(&cli->auth_info, &chk, reply_data, data_len)) {
DEBUG(0, ("rpc_auth_pipe: Could not decode schannel\n"));
return False;
}
- cli->auth_info.seq_num++;
}
return True;
}
@@ -360,7 +361,7 @@ static BOOL rpc_auth_pipe(struct cli_state *cli, prs_struct *rdata, int len, int
+------------+-----------------+-------------+---------------+-------------+
Where the presence of the AUTH_HDR and AUTH are dependent on the
- signing & sealing being neogitated.
+ signing & sealing being negotiated.
****************************************************************************/
@@ -649,7 +650,7 @@ static BOOL create_rpc_bind_req(prs_struct *rpc_out, BOOL do_auth, BOOL do_netse
init_rpc_hdr_auth(&hdr_auth, NETSEC_AUTH_TYPE, NETSEC_AUTH_LEVEL,
0x00, 1);
- init_rpc_auth_netsec_neg(&netsec_neg, my_name, domain);
+ init_rpc_auth_netsec_neg(&netsec_neg, domain, my_name);
/*
* Use the 4k buffer to store the auth info.
@@ -1018,8 +1019,15 @@ BOOL rpc_api_pipe_req(struct cli_state *cli, uint8 op_num,
uchar sign[8];
prs_struct netsec_blob;
- memset(sign, 0, sizeof(sign));
- sign[4] = 0x80;
+ if ((cli->auth_info.seq_num & 1) != 0) {
+ DEBUG(0,("SCHANNEL ERROR: seq_num must be even in client (seq_num=%d)\n",
+ cli->auth_info.seq_num));
+ }
+
+ DEBUG(10,("SCHANNEL seq_num=%d\n", cli->auth_info.seq_num));
+
+ RSIVAL(sign, 0, cli->auth_info.seq_num);
+ SIVAL(sign, 4, 0x80);
if (!prs_init(&netsec_blob, send_size+auth_padding,
cli->mem_ctx, MARSHALL)) {
@@ -1047,12 +1055,15 @@ BOOL rpc_api_pipe_req(struct cli_state *cli, uint8 op_num,
init_rpc_auth_netsec_chk(&verf, netsec_sig, nullbytes,
sign, nullbytes);
- netsec_encode(&(cli->auth_info), &verf,
+ netsec_encode(&cli->auth_info, &verf,
prs_data_p(&netsec_blob),
prs_data_size(&netsec_blob));
prs_append_prs_data(&outgoing_packet, &netsec_blob);
prs_mem_free(&netsec_blob);
+
+ cli->auth_info.seq_num++;
+
} else {
if(!prs_append_some_prs_data(&outgoing_packet, data,
data_sent, send_size)) {
diff --git a/source3/rpc_parse/parse_prs.c b/source3/rpc_parse/parse_prs.c
index a22ae1bacd..696142905b 100644
--- a/source3/rpc_parse/parse_prs.c
+++ b/source3/rpc_parse/parse_prs.c
@@ -1392,14 +1392,13 @@ void netsec_encode(struct netsec_auth_struct *a,
uchar sess_kf0[16];
int i;
- /* store the sequence number */
- SIVAL(dataN, 0, a->seq_num);
+ SIVAL(dataN, 0, 0);
- for (i = 0; i < sizeof(sess_kf0); i++)
- {
+ for (i = 0; i < sizeof(sess_kf0); i++) {
sess_kf0[i] = a->sess_key[i] ^ 0xf0;
}
+ DEBUG(10,("SCHANNEL: netsec_encode seq_num=%d data_len=%d\n", a->seq_num, data_len));
dump_data_pw("a->sess_key:\n", a->sess_key, sizeof(a->sess_key));
dump_data_pw("a->seq_num :\n", dataN, sizeof(dataN));
@@ -1459,14 +1458,13 @@ BOOL netsec_decode(struct netsec_auth_struct *a,
uchar sess_kf0[16];
int i;
- /* store the sequence number */
- SIVAL(dataN, 0, a->seq_num);
+ SIVAL(dataN, 0, 0);
- for (i = 0; i < sizeof(sess_kf0); i++)
- {
+ for (i = 0; i < sizeof(sess_kf0); i++) {
sess_kf0[i] = a->sess_key[i] ^ 0xf0;
}
+ DEBUG(10,("SCHANNEL: netsec_decode seq_num=%d data_len=%d\n", a->seq_num, data_len));
dump_data_pw("a->sess_key:\n", a->sess_key, sizeof(a->sess_key));
dump_data_pw("a->seq_num :\n", dataN, sizeof(dataN));
hmac_md5(a->sess_key, dataN, 0x4, digest1);
diff --git a/source3/rpc_parse/parse_rpc.c b/source3/rpc_parse/parse_rpc.c
index 30909c6910..dd75ea1f55 100644
--- a/source3/rpc_parse/parse_rpc.c
+++ b/source3/rpc_parse/parse_rpc.c
@@ -1144,8 +1144,8 @@ creates an RPC_AUTH_NETSEC_NEG structure.
void init_rpc_auth_netsec_neg(RPC_AUTH_NETSEC_NEG *neg,
const char *domain, const char *myname)
{
- neg->unknown1 = 0;
- neg->unknown2 = 0x13;
+ neg->type1 = 0;
+ neg->type2 = 0x3;
fstrcpy(neg->domain, domain);
fstrcpy(neg->myname, myname);
}
@@ -1166,16 +1166,16 @@ BOOL smb_io_rpc_auth_netsec_neg(const char *desc, RPC_AUTH_NETSEC_NEG *neg,
if(!prs_align(ps))
return False;
- if(!prs_uint32("unknown1", ps, depth, &neg->unknown1))
+ if(!prs_uint32("type1", ps, depth, &neg->type1))
return False;
- if(!prs_uint32("unknown2", ps, depth, &neg->unknown2))
- return False;
- if(!prs_string("myname ", ps, depth, neg->myname,
- strlen(neg->myname), sizeof(neg->myname)))
+ if(!prs_uint32("type2", ps, depth, &neg->type2))
return False;
if(!prs_string("domain ", ps, depth, neg->domain,
strlen(neg->domain), sizeof(neg->domain)))
return False;
+ if(!prs_string("myname ", ps, depth, neg->myname,
+ strlen(neg->myname), sizeof(neg->myname)))
+ return False;
return True;
}
diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c
index 43fbb4edaa..df99c15777 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -279,8 +279,13 @@ BOOL create_next_pdu(pipes_struct *p)
prs_init(&rverf, 0, p->mem_ctx, MARSHALL);
prs_init(&rauth, 0, p->mem_ctx, MARSHALL);
- memset(sign, 0, sizeof(sign));
- sign[3] = 0x01;
+ if ((p->netsec_auth.seq_num & 1) == 0) {
+ DEBUG(0,("SCHANNEL ERROR: seq_num must be odd in server! (seq_num=%d)\n",
+ p->netsec_auth.seq_num));
+ }
+
+ RSIVAL(sign, 0, p->netsec_auth.seq_num);
+ SIVAL(sign, 4, 0);
init_rpc_auth_netsec_chk(&verf, netsec_sig, nullbytes, sign, nullbytes);
@@ -1340,6 +1345,9 @@ BOOL api_pipe_netsec_process(pipes_struct *p, prs_struct *rpc_in)
return False;
}
+ /* The sequence number gets incremented on both send and receive. */
+ p->netsec_auth.seq_num++;
+
return True;
}
generated by cgit (git 2.34.1) at 2024-12-18 21:57:46 +0000