diff options
Diffstat (limited to 'source4/auth/gensec/gensec_gssapi.c')
| -rw-r--r-- | source4/auth/gensec/gensec_gssapi.c | 88 |
1 files changed, 71 insertions, 17 deletions
diff --git a/source4/auth/gensec/gensec_gssapi.c b/source4/auth/gensec/gensec_gssapi.c index ff4a23e7fc..0df40dc82f 100644 --- a/source4/auth/gensec/gensec_gssapi.c +++ b/source4/auth/gensec/gensec_gssapi.c @@ -65,6 +65,7 @@ struct gensec_gssapi_state { struct smb_krb5_context *smb_krb5_context; struct gssapi_creds_container *client_cred; struct gssapi_creds_container *server_cred; + gss_krb5_lucid_context_v1_t *lucid; gss_cred_id_t delegated_cred_handle; @@ -143,9 +144,45 @@ static int gensec_gssapi_destructor(struct gensec_gssapi_state *gensec_gssapi_st if (gensec_gssapi_state->client_name != GSS_C_NO_NAME) { maj_stat = gss_release_name(&min_stat, &gensec_gssapi_state->client_name); } + + if (gensec_gssapi_state->lucid) { + gss_krb5_free_lucid_sec_context(&min_stat, gensec_gssapi_state->lucid); + } + return 0; } +static NTSTATUS gensec_gssapi_init_lucid(struct gensec_gssapi_state *gensec_gssapi_state) +{ + OM_uint32 maj_stat, min_stat; + + if (gensec_gssapi_state->lucid) { + return NT_STATUS_OK; + } + + maj_stat = gss_krb5_export_lucid_sec_context(&min_stat, + &gensec_gssapi_state->gssapi_context, + 1, + (void **)&gensec_gssapi_state->lucid); + if (maj_stat != GSS_S_COMPLETE) { + DEBUG(0,("gensec_gssapi_init_lucid: %s\n", + gssapi_error_string(gensec_gssapi_state, + maj_stat, min_stat, + gensec_gssapi_state->gss_oid))); + return NT_STATUS_INTERNAL_ERROR; + } + + if (gensec_gssapi_state->lucid->version != 1) { + DEBUG(0,("gensec_gssapi_init_lucid: lucid version[%d] != 1\n", + gensec_gssapi_state->lucid->version)); + gss_krb5_free_lucid_sec_context(&min_stat, gensec_gssapi_state->lucid); + gensec_gssapi_state->lucid = NULL; + return NT_STATUS_INTERNAL_ERROR; + } + + return NT_STATUS_OK; +} + static NTSTATUS gensec_gssapi_start(struct gensec_security *gensec_security) { struct gensec_gssapi_state *gensec_gssapi_state; @@ -169,6 +206,7 @@ static NTSTATUS gensec_gssapi_start(struct gensec_security *gensec_security) gensec_gssapi_state->gssapi_context = GSS_C_NO_CONTEXT; gensec_gssapi_state->server_name = GSS_C_NO_NAME; gensec_gssapi_state->client_name = GSS_C_NO_NAME; + gensec_gssapi_state->lucid = NULL; /* TODO: Fill in channel bindings */ gensec_gssapi_state->input_chan_bindings = GSS_C_NO_CHANNEL_BINDINGS; @@ -1083,10 +1121,10 @@ static NTSTATUS gensec_gssapi_check_packet(struct gensec_security *gensec_securi if (gensec_security->want_features & GENSEC_FEATURE_SIGN_PKT_HEADER) { input_message.length = pdu_length; - input_message.value = whole_pdu; + input_message.value = discard_const(whole_pdu); } else { input_message.length = length; - input_message.value = data; + input_message.value = discard_const(data); } input_token.length = sig->length; @@ -1139,6 +1177,31 @@ static bool gensec_gssapi_have_feature(struct gensec_security *gensec_security, if (feature & GENSEC_FEATURE_DCE_STYLE) { return gensec_gssapi_state->got_flags & GSS_C_DCE_STYLE; } + if (feature & GENSEC_FEATURE_NEW_SPNEGO) { + NTSTATUS status; + + if (!(gensec_gssapi_state->got_flags & GSS_C_INTEG_FLAG)) { + return false; + } + + if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "force_new_spnego", false)) { + return true; + } + if (lp_parm_bool(gensec_security->lp_ctx, NULL, "gensec_gssapi", "disable_new_spnego", false)) { + return false; + } + + status = gensec_gssapi_init_lucid(gensec_gssapi_state); + if (!NT_STATUS_IS_OK(status)) { + return false; + } + + if (gensec_gssapi_state->lucid->protocol == 1) { + return true; + } + + return false; + } /* We can always do async (rather than strict request/reply) packets. */ if (feature & GENSEC_FEATURE_ASYNC_REPLIES) { return true; @@ -1386,8 +1449,7 @@ size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t da { struct gensec_gssapi_state *gensec_gssapi_state = talloc_get_type(gensec_security->private_data, struct gensec_gssapi_state); - OM_uint32 maj_stat, min_stat; - gss_krb5_lucid_context_v1_t *lucid = NULL; + NTSTATUS status; if (gensec_gssapi_state->sig_size) { return gensec_gssapi_state->sig_size; @@ -1399,18 +1461,12 @@ size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t da gensec_gssapi_state->sig_size = 37; } - maj_stat = gss_krb5_export_lucid_sec_context(&min_stat, - &gensec_gssapi_state->gssapi_context, - 1, (void **)&lucid); - if (maj_stat != GSS_S_COMPLETE) { - return gensec_gssapi_state->sig_size; - } - - if (lucid->version != 1) { + status = gensec_gssapi_init_lucid(gensec_gssapi_state); + if (!NT_STATUS_IS_OK(status)) { return gensec_gssapi_state->sig_size; } - if (lucid->protocol == 1) { + if (gensec_gssapi_state->lucid->protocol == 1) { if (gensec_gssapi_state->got_flags & GSS_C_CONF_FLAG) { /* * TODO: windows uses 76 here, but we don't know @@ -1420,8 +1476,8 @@ size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t da } else { gensec_gssapi_state->sig_size = 28; } - } else if (lucid->protocol == 0) { - switch (lucid->rfc1964_kd.ctx_key.type) { + } else if (gensec_gssapi_state->lucid->protocol == 0) { + switch (gensec_gssapi_state->lucid->rfc1964_kd.ctx_key.type) { case KEYTYPE_DES: case KEYTYPE_ARCFOUR: case KEYTYPE_ARCFOUR_56: @@ -1441,8 +1497,6 @@ size_t gensec_gssapi_sig_size(struct gensec_security *gensec_security, size_t da } } - gss_krb5_free_lucid_sec_context(&min_stat, lucid); - return gensec_gssapi_state->sig_size; } |