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authorJeremy Allison <jra@samba.org>2006-04-18 18:00:57 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 11:16:25 -0500
commit0498f3b8890ec62eeb9275a6bf685a6c3d81fce5 (patch)
tree14e1ce1044945fadea94368365521636adae32f2
parent4549efe6967cf8abeac3e275b37754e59d87af5c (diff)
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r15129: Separate out mechanism and policy for NTLMSSP auth/sign/seal.
With this change (and setting lanman auth = no in smb.conf) we have *identical* NTLMSSP flags to W2K3 in SPNEGO auth. Jeremy (This used to be commit 93ca3eee55297eb7fdd38fca38103ce129987e2a)
-rw-r--r--source3/include/ntlmssp.h1
-rw-r--r--source3/libsmb/ntlmssp.c20
-rw-r--r--source3/rpc_client/cli_pipe.c18
-rw-r--r--source3/rpc_server/srv_pipe.c23
4 files changed, 57 insertions, 5 deletions
diff --git a/source3/include/ntlmssp.h b/source3/include/ntlmssp.h
index 30a37e06c3..a2dac7dc0b 100644
--- a/source3/include/ntlmssp.h
+++ b/source3/include/ntlmssp.h
@@ -60,6 +60,7 @@ enum NTLM_MESSAGE_TYPE
#define NTLMSSP_CHAL_NON_NT_SESSION_KEY 0x00040000
#define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
#define NTLMSSP_CHAL_TARGET_INFO 0x00800000
+#define NTLMSSP_UNKNOWN_02000000 0x02000000
#define NTLMSSP_NEGOTIATE_128 0x20000000 /* 128-bit encryption */
#define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
#define NTLMSSP_NEGOTIATE_56 0x80000000
diff --git a/source3/libsmb/ntlmssp.c b/source3/libsmb/ntlmssp.c
index e1ef69aed9..986fa8cce9 100644
--- a/source3/libsmb/ntlmssp.c
+++ b/source3/libsmb/ntlmssp.c
@@ -363,9 +363,6 @@ static void ntlmssp_handle_neg_flags(struct ntlmssp_state *ntlmssp_state,
if (!(neg_flags & NTLMSSP_NEGOTIATE_128)) {
ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_128;
- if (neg_flags & NTLMSSP_NEGOTIATE_56) {
- ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_56;
- }
}
if (!(neg_flags & NTLMSSP_NEGOTIATE_56)) {
@@ -376,10 +373,23 @@ static void ntlmssp_handle_neg_flags(struct ntlmssp_state *ntlmssp_state,
ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_KEY_EXCH;
}
+ if (!(neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
+ ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_SIGN;
+ }
+
+ if (!(neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
+ ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_SEAL;
+ }
+
+ /* Woop Woop - unknown flag for Windows compatibility...
+ What does this really do ? JRA. */
+ if (!(neg_flags & NTLMSSP_UNKNOWN_02000000)) {
+ ntlmssp_state->neg_flags &= ~NTLMSSP_UNKNOWN_02000000;
+ }
+
if ((neg_flags & NTLMSSP_REQUEST_TARGET)) {
ntlmssp_state->neg_flags |= NTLMSSP_REQUEST_TARGET;
}
-
}
/**
@@ -840,6 +850,8 @@ NTSTATUS ntlmssp_server_start(NTLMSSP_STATE **ntlmssp_state)
(*ntlmssp_state)->neg_flags =
NTLMSSP_NEGOTIATE_128 |
+ NTLMSSP_NEGOTIATE_56 |
+ NTLMSSP_UNKNOWN_02000000 |
NTLMSSP_NEGOTIATE_NTLM |
NTLMSSP_NEGOTIATE_NTLM2 |
NTLMSSP_NEGOTIATE_KEY_EXCH |
diff --git a/source3/rpc_client/cli_pipe.c b/source3/rpc_client/cli_pipe.c
index 37b1b2a671..11eb21df44 100644
--- a/source3/rpc_client/cli_pipe.c
+++ b/source3/rpc_client/cli_pipe.c
@@ -2141,6 +2141,24 @@ static NTSTATUS rpc_pipe_bind(struct rpc_pipe_client *cli,
return NT_STATUS_INVALID_INFO_CLASS;
}
+ /* For NTLMSSP ensure the server gave us the auth_level we wanted. */
+ if (auth_type == PIPE_AUTH_TYPE_NTLMSSP || auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP) {
+ if (auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
+ if (!(cli->auth.a_u.ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
+ DEBUG(0,("cli_finish_bind_auth: requested NTLMSSSP signing and server refused.\n"));
+ prs_mem_free(&rbuf);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ }
+ if (auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
+ if (!(cli->auth.a_u.ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
+ DEBUG(0,("cli_finish_bind_auth: requested NTLMSSSP sealing and server refused.\n"));
+ prs_mem_free(&rbuf);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ }
+ }
+
/* Pipe is bound - set up auth_type and auth_level data. */
cli->auth.auth_type = auth_type;
diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c
index 9b6fcb2f15..72298520e3 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -606,7 +606,7 @@ static BOOL pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
NTSTATUS status;
AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
- DEBUG(5,("pipe_ntlmssp_verify_final: checking user details\n"));
+ DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
ZERO_STRUCT(reply);
@@ -629,6 +629,27 @@ static BOOL pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
return False;
}
+ /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
+ ensure the underlying NTLMSSP flags are also set. If not we should
+ refuse the bind. */
+
+ if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
+ if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
+ DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
+ "but client declined signing.\n",
+ p->name ));
+ return False;
+ }
+ }
+ if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
+ if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
+ DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
+ "but client declined sealing.\n",
+ p->name ));
+ return False;
+ }
+ }
+
fstrcpy(p->user_name, a->ntlmssp_state->user);
fstrcpy(p->pipe_user_name, a->server_info->unix_name);
fstrcpy(p->domain, a->ntlmssp_state->domain);