diff options
Diffstat (limited to 'source4/winbind')
| -rw-r--r-- | source4/winbind/wb_pam_auth.c | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/source4/winbind/wb_pam_auth.c b/source4/winbind/wb_pam_auth.c index 68cd5fc4b2..0724875151 100644 --- a/source4/winbind/wb_pam_auth.c +++ b/source4/winbind/wb_pam_auth.c @@ -28,6 +28,7 @@ #include "smbd/service_stream.h" #include "libcli/auth/credentials.h" +/* Oh, there is so much to keep an eye on when authenticating a user. Oh my! */ struct pam_auth_crap_state { struct composite_context *ctx; struct event_context *event_ctx; @@ -51,6 +52,14 @@ static struct composite_context *crap_samlogon_send_req(struct wbsrv_domain *dom void *p); static NTSTATUS crap_samlogon_recv_req(struct composite_context *ctx, void *p); +/* NTLM authentication. + + Fill parameters into a control block to pass to the next function. + No application logic, this is done by the helper function paramters + to wb_domain_request_send() + +*/ + struct composite_context *wb_cmd_pam_auth_crap_send(struct wbsrv_call *call, uint32_t logon_parameters, const char *domain, @@ -104,6 +113,11 @@ struct composite_context *wb_cmd_pam_auth_crap_send(struct wbsrv_call *call, return NULL; } +/* + NTLM Authentication + + Send of a SamLogon request to authenticate a user. +*/ static struct composite_context *crap_samlogon_send_req(struct wbsrv_domain *domain, void *p) { @@ -149,6 +163,11 @@ static struct composite_context *crap_samlogon_send_req(struct wbsrv_domain *dom state, &state->r); } +/* + NTLM Authentication + + Check the SamLogon reply, decrypt and parse out the session keys and the info3 structure +*/ static NTSTATUS crap_samlogon_recv_req(struct composite_context *ctx, void *p) { @@ -161,9 +180,6 @@ static NTSTATUS crap_samlogon_recv_req(struct composite_context *ctx, status = composite_netr_LogonSamLogon_recv(ctx); if (!NT_STATUS_IS_OK(status)) return status; - status = state->r.out.result; - if (!NT_STATUS_IS_OK(status)) return status; - if ((state->r.out.return_authenticator == NULL) || (!creds_client_check(state->creds_state, &state->r.out.return_authenticator->cred))) { @@ -171,6 +187,12 @@ static NTSTATUS crap_samlogon_recv_req(struct composite_context *ctx, return NT_STATUS_ACCESS_DENIED; } + status = state->r.out.result; + if (!NT_STATUS_IS_OK(status)) return status; + + /* Decrypt the session keys before we reform the info3, so the + * person on the other end of winbindd pipe doesn't have to. + * They won't have the encryption key anyway */ creds_decrypt_samlogon(state->creds_state, state->r.in.validation_level, &state->r.out.validation); @@ -180,13 +202,17 @@ static NTSTATUS crap_samlogon_recv_req(struct composite_context *ctx, state->r.out.validation.sam3, (ndr_push_flags_fn_t)ndr_push_netr_SamInfo3); NT_STATUS_NOT_OK_RETURN(status); - + + /* The Samba3 protocol is a bit broken (due to non-IDL + * heritage, so for compatability we must add a non-zero 4 + * bytes to the info3 */ state->info3 = data_blob_talloc(state, NULL, tmp_blob.length+4); NT_STATUS_HAVE_NO_MEMORY(state->info3.data); SIVAL(state->info3.data, 0, 1); memcpy(state->info3.data+4, tmp_blob.data, tmp_blob.length); + /* We actually only ask for level 3, and assume it above, but anyway... */ base = NULL; switch(state->r.in.validation_level) { case 2: @@ -206,7 +232,9 @@ static NTSTATUS crap_samlogon_recv_req(struct composite_context *ctx, state->user_session_key = base->key; state->lm_key = base->LMSessKey; - /* Give the caller the most accurate username possible */ + /* Give the caller the most accurate username possible. + * Assists where case sensitive comparisons may be done by our + * ntlm_auth callers */ if (base->account_name.string) { state->user_name = base->account_name.string; talloc_steal(state, base->account_name.string); |