Unix SMB/Netbios implementation.
Version 3.0
- Winbind daemon - pam auuth funcions
+ Winbind daemon - pam auth funcions
Copyright (C) Andrew Tridgell 2000
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett 2001
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include "winbindd.h"
-/************************************************************************
-form a key for fetching a domain trust password
-************************************************************************/
-static char *trust_keystr(char *domain)
+
+/* Return a password structure from a username. */
+
+enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
{
- static fstring keystr;
- slprintf(keystr,sizeof(keystr),"%s/%s", SECRETS_MACHINE_ACCT_PASS, domain);
- return keystr;
+ NTSTATUS result;
+ fstring name_domain, name_user;
+ int passlen;
+ unsigned char trust_passwd[16];
+ time_t last_change_time;
+ uint32 smb_uid_low;
+ NET_USER_INFO_3 info3;
+ struct cli_state *cli = NULL;
+ uchar chal[8];
+ TALLOC_CTX *mem_ctx;
+ DATA_BLOB lm_resp;
+ DATA_BLOB nt_resp;
+
+ extern pstring global_myname;
+
+ DEBUG(3, ("[%5d]: pam auth %s\n", state->pid,
+ state->request.data.auth.user));
+
+ if (!(mem_ctx = talloc_init_named("winbind pam auth for %s", state->request.data.auth.user))) {
+ DEBUG(0, ("winbindd_pam_auth: could not talloc_init()!\n"));
+ return WINBINDD_ERROR;
+ }
+
+ /* Parse domain and username */
+
+ if (!parse_domain_user(state->request.data.auth.user, name_domain,
+ name_user)) {
+ DEBUG(5,("no domain seperator (%s) in username (%s) - failing fauth\n", lp_winbind_separator(), state->request.data.auth.user));
+ talloc_destroy(mem_ctx);
+ return WINBINDD_ERROR;
+ }
+
+ passlen = strlen(state->request.data.auth.pass);
+
+ if (!*state->request.data.auth.pass) {
+ return WINBINDD_ERROR;
+ talloc_destroy(mem_ctx);
+ } else {
+ unsigned char local_lm_response[24];
+ unsigned char local_nt_response[24];
+
+ generate_random_buffer(chal, 8, False);
+ SMBencrypt( (const uchar *)state->request.data.auth.pass, chal, local_lm_response);
+
+ SMBNTencrypt((const uchar *)state->request.data.auth.pass, chal, local_nt_response);
+
+ lm_resp = data_blob_talloc(mem_ctx, local_lm_response, sizeof(local_lm_response));
+ nt_resp = data_blob_talloc(mem_ctx, local_nt_response, sizeof(local_nt_response));
+ }
+
+ /*
+ * Get the machine account password for our primary domain
+ */
+
+ if (!secrets_fetch_trust_account_password(
+ lp_workgroup(), trust_passwd, &last_change_time)) {
+ DEBUG(0, ("winbindd_pam_auth: could not fetch trust account "
+ "password for domain %s\n", lp_workgroup()));
+ talloc_destroy(mem_ctx);
+ return WINBINDD_ERROR;
+ }
+
+ /* We really don't care what LUID we give the user. */
+
+ generate_random_buffer( (unsigned char *)&smb_uid_low, 4, False);
+
+ ZERO_STRUCT(info3);
+
+ result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, &cli);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
+ goto done;
+ }
+
+ result = cli_netlogon_sam_network_logon(cli, mem_ctx,
+ name_user, name_domain,
+ global_myname, chal,
+ lm_resp, nt_resp,
+ &info3);
+
+ uni_group_cache_store_netlogon(mem_ctx, &info3);
+done:
+
+ if (cli)
+ cli_shutdown(cli);
+
+ talloc_destroy(mem_ctx);
+
+ return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
+
+/* Challenge Response Authentication Protocol */
-/************************************************************************
- Routine to get the trust account password for a domain.
- The user of this function must have locked the trust password file.
-************************************************************************/
-static BOOL _get_trust_account_password(char *domain, unsigned char *ret_pwd, time_t *pass_last_set_time)
+enum winbindd_result winbindd_pam_auth_crap(struct winbindd_cli_state *state)
{
- struct machine_acct_pass *pass;
- size_t size;
+ NTSTATUS result;
+ unsigned char trust_passwd[16];
+ time_t last_change_time;
+ NET_USER_INFO_3 info3;
+ struct cli_state *cli = NULL;
+ TALLOC_CTX *mem_ctx;
- if (!(pass = secrets_fetch(trust_keystr(domain), &size)) ||
- size != sizeof(*pass)) return False;
+ DATA_BLOB lm_resp, nt_resp;
- if (pass_last_set_time) *pass_last_set_time = pass->mod_time;
- memcpy(ret_pwd, pass->hash, 16);
- free(pass);
- return True;
-}
+ extern pstring global_myname;
+ DEBUG(3, ("[%5d]: pam auth crap domain: %s user: %s\n", state->pid,
+ state->request.data.auth_crap.user, state->request.data.auth_crap.user));
+
+ if (!(mem_ctx = talloc_init_named("winbind pam auth crap for %s", state->request.data.auth.user))) {
+ DEBUG(0, ("winbindd_pam_auth_crap: could not talloc_init()!\n"));
+ return WINBINDD_ERROR;
+ }
+
+ lm_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.lm_resp, state->request.data.auth_crap.lm_resp_len);
+ nt_resp = data_blob_talloc(mem_ctx, state->request.data.auth_crap.nt_resp, state->request.data.auth_crap.nt_resp_len);
+
+ /*
+ * Get the machine account password for our primary domain
+ */
+
+ if (!secrets_fetch_trust_account_password(
+ lp_workgroup(), trust_passwd, &last_change_time)) {
+ DEBUG(0, ("winbindd_pam_auth: could not fetch trust account "
+ "password for domain %s\n", lp_workgroup()));
+ talloc_destroy(mem_ctx);
+ return WINBINDD_ERROR;
+ }
-/* Return a password structure from a username. Specify whether cached data
- can be returned. */
+ ZERO_STRUCT(info3);
-enum winbindd_result winbindd_pam_auth(struct winbindd_cli_state *state)
+ result = cm_get_netlogon_cli(lp_workgroup(), trust_passwd, &cli);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(3, ("could not open handle to NETLOGON pipe\n"));
+ goto done;
+ }
+
+ result = cli_netlogon_sam_network_logon(cli, mem_ctx,
+ state->request.data.auth_crap.user, state->request.data.auth_crap.domain,
+ global_myname, state->request.data.auth_crap.chal,
+ lm_resp, nt_resp,
+ &info3);
+
+ uni_group_cache_store_netlogon(mem_ctx, &info3);
+done:
+ talloc_destroy(mem_ctx);
+
+ if (cli)
+ cli_shutdown(cli);
+
+ return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
+}
+
+/* Change a user password */
+
+enum winbindd_result winbindd_pam_chauthtok(struct winbindd_cli_state *state)
{
- NET_USER_INFO_3 info3;
- uchar ntpw[16];
- uchar lmpw[16];
- uchar trust_passwd[16];
- uint32 status;
- fstring server;
- fstring name_domain, name_user;
- extern pstring global_myname;
+ char *oldpass, *newpass;
+ fstring domain, user;
+ uchar nt_oldhash[16];
+ uchar lm_oldhash[16];
- DEBUG(1,("winbindd_pam_auth user=%s\n",
- state->request.data.auth.user));
+ DEBUG(3, ("[%5d]: pam chauthtok %s\n", state->pid,
+ state->request.data.chauthtok.user));
- /* Parse domain and username */
- parse_domain_user(state->request.data.auth.user, name_domain, name_user);
+ /* Setup crap */
- /* don't allow the null domain */
- if (strcmp(name_domain,"") == 0) return WINBINDD_ERROR;
+ if (state == NULL)
+ return WINBINDD_ERROR;
- ZERO_STRUCT(info3);
+ if (!parse_domain_user(state->request.data.chauthtok.user, domain, user))
+ return WINBINDD_ERROR;
- if (!_get_trust_account_password(name_domain, trust_passwd, NULL)) return WINBINDD_ERROR;
+ oldpass = state->request.data.chauthtok.oldpass;
+ newpass = state->request.data.chauthtok.newpass;
- nt_lm_owf_gen(state->request.data.auth.pass, ntpw, lmpw);
+ nt_lm_owf_gen(oldpass, nt_oldhash, lm_oldhash);
- slprintf(server, sizeof(server), "\\\\%s", server_state.controller);
+ /* Change password */
- status = domain_client_validate_backend(server,
- name_user, name_domain,
- global_myname, SEC_CHAN_WKSTA,
- trust_passwd,
- NULL,
- lmpw, sizeof(lmpw),
- ntpw, sizeof(ntpw), &info3);
+#if 0
- if (status != NT_STATUS_NOPROBLEMO) return WINBINDD_ERROR;
+ /* XXX */
+ if (!msrpc_sam_ntchange_pwd(server_state.controller, domain, user,
+ lm_oldhash, nt_oldhash, newpass)) {
+ DEBUG(0, ("password change failed for user %s/%s\n", domain, user));
+ return WINBINDD_ERROR;
+ }
+#endif
+
return WINBINDD_OK;
}
-
git.samba.org / ira / wip.git / blobdiff