From 3594dff371450e4530bf26f3bc4b2ea195270bcd Mon Sep 17 00:00:00 2001 From: Simo Sorce Date: Fri, 10 Apr 2009 17:33:30 -0400 Subject: Split ldap backend into auth and identity files --- server/providers/ldap/ldap_auth.c | 31 +- server/providers/ldap/ldap_id.c | 786 ++++++++++++++++++++++++++++++++++++++ server/server.mk | 3 +- 3 files changed, 800 insertions(+), 20 deletions(-) create mode 100644 server/providers/ldap/ldap_id.c (limited to 'server') diff --git a/server/providers/ldap/ldap_auth.c b/server/providers/ldap/ldap_auth.c index 365b7d0b9..6a4dc895f 100644 --- a/server/providers/ldap/ldap_auth.c +++ b/server/providers/ldap/ldap_auth.c @@ -53,15 +53,9 @@ struct sdap_ctx { int opt_timeout; }; -struct sdap_ops; struct sdap_req; -struct sdap_ops { - void (*op)(struct sdap_req *); - struct sdap_ops *next; -}; - -enum sdap_int_ops { +enum sdap_auth_steps { SDAP_NOOP = 0x0000, SDAP_OP_INIT = 0x0001, SDAP_CHECK_INIT_RESULT, @@ -75,10 +69,9 @@ struct sdap_req { struct pam_data *pd; struct sdap_ctx *sdap_ctx; LDAP *ldap; - struct sdap_ops *ops; char *user_dn; tevent_fd_handler_t next_task; - enum sdap_int_ops next_op; + enum sdap_auth_steps next_step; int msgid; }; @@ -309,7 +302,7 @@ static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, lr = talloc_get_type(pvt, struct sdap_req); - switch (lr->next_op) { + switch (lr->next_step) { case SDAP_OP_INIT: ret = sdap_init(lr); if (ret != EOK) { @@ -332,7 +325,7 @@ static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, if (ret == 0) { DEBUG(1, ("ldap_result not ready yet, waiting.\n")); lr->next_task = sdap_pam_loop; - lr->next_op = SDAP_CHECK_INIT_RESULT; + lr->next_step = SDAP_CHECK_INIT_RESULT; ret = wait_for_fd(lr); if (ret != EOK) { DEBUG(1, ("schedule_next_task failed.\n")); @@ -380,7 +373,7 @@ static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, if (ret == 0) { DEBUG(1, ("ldap_result not ready yet, waiting.\n")); lr->next_task = sdap_pam_loop; - lr->next_op = SDAP_CHECK_STD_BIND; + lr->next_step = SDAP_CHECK_STD_BIND; ret = wait_for_fd(lr); if (ret != EOK) { DEBUG(1, ("schedule_next_task failed.\n")); @@ -438,7 +431,7 @@ static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, if (ret == 0) { DEBUG(1, ("ldap_result not ready yet, waiting.\n")); lr->next_task = sdap_pam_loop; - lr->next_op = SDAP_CHECK_SEARCH_DN_RESULT; + lr->next_step = SDAP_CHECK_SEARCH_DN_RESULT; ret = wait_for_fd(lr); if (ret != EOK) { DEBUG(1, ("schedule_next_task failed.\n")); @@ -519,7 +512,7 @@ static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, if (ret == 0) { DEBUG(1, ("ldap_result not ready yet, waiting.\n")); lr->next_task = sdap_pam_loop; - lr->next_op = SDAP_CHECK_USER_BIND; + lr->next_step = SDAP_CHECK_USER_BIND; ret = wait_for_fd(lr); if (ret != EOK) { DEBUG(1, ("schedule_next_task failed.\n")); @@ -570,7 +563,7 @@ static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, } break; default: - DEBUG(1, ("Unknown ldap backend operation %d.\n", lr->next_op)); + DEBUG(1, ("Unknown ldap backend operation %d.\n", lr->next_step)); pam_status = PAM_SYSTEM_ERR; } @@ -612,7 +605,7 @@ static void sdap_start(struct tevent_context *ev, struct tevent_timer *te, } lr->next_task = sdap_pam_loop; - lr->next_op = SDAP_CHECK_INIT_RESULT; + lr->next_step = SDAP_CHECK_INIT_RESULT; ret = wait_for_fd(lr); if (ret != EOK) { DEBUG(1, ("schedule_next_task failed.\n")); @@ -653,7 +646,7 @@ static void sdap_pam_handler(struct be_req *req) lr->sdap_ctx = sdap_ctx; lr->user_dn = NULL; lr->next_task = NULL; - lr->next_op = SDAP_NOOP; + lr->next_step = SDAP_NOOP; timeout.tv_sec=0; timeout.tv_usec=0; @@ -679,7 +672,7 @@ static void sdap_shutdown(struct be_req *req) req->fn(req, EOK, NULL); } -struct be_auth_ops sdap_mod_ops = { +struct be_auth_ops sdap_auth_ops = { .pam_handler = sdap_pam_handler, .finalize = sdap_shutdown }; @@ -761,7 +754,7 @@ int sssm_ldap_auth_init(struct be_ctx *bectx, if (ret != EOK) goto done; ctx->network_timeout = opt_timeout; - *ops = &sdap_mod_ops; + *ops = &sdap_auth_ops; *pvt_data = ctx; ret = EOK; diff --git a/server/providers/ldap/ldap_id.c b/server/providers/ldap/ldap_id.c new file mode 100644 index 000000000..744f29cac --- /dev/null +++ b/server/providers/ldap/ldap_id.c @@ -0,0 +1,786 @@ +/* + SSSD + + LDAP Identity Backend Module + + Authors: + Simo Sorce + + Copyright (C) 2008 Red Hat + + 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 + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +#include +#include +#include + +#include + +#include "util/util.h" +#include "providers/dp_backend.h" +#include "db/sysdb.h" +#include "../sss_client/sss_cli.h" + +struct sdap_conf_ctx { + char *base_dn; + + char *usr_base_dn; + int usr_search_scope; + char *usr_search_filter; + + char *usr_objectclass; + char *usr_attr_name; + char *usr_attr_pwd; + char *usr_attr_uidnum; + char *usr_attr_gidnum; + char *usr_attr_gecos; + char *usr_attr_homedir; + char *usr_attr_shell; + char **usr_attr_others; + + char *grp_base_dn; + int grp_search_scope; + char *grp_search_filter; + + char *grp_objectclass; + char *grp_attr_name; + char *grp_attr_pwd; + char *grp_attr_gidnum; + char *grp_attr_member; + char **grp_attr_others; + + enum sdap_schema { + SDAP_SCHEMA_RFC2307, + SDAP_SCHEMA_RFC2307BIS + } schema; +}; + +struct sdap_ctx { + char *ldap_uri; + + char *bind_dn; + char *auth_method; + char *secret; + int secret_size; + + struct sdap_conf_ctx *conf; + + LDAP *ldap; + int network_timeout; + int opt_timeout; +}; + +#if 0 +struct sdap_id_req { + struct be_req *req; + struct sdap_srv_ctx *srvctx; + + +}; + +static int schedule_next_task(struct sdap_id_req *lr, struct timeval tv, + tevent_timer_handler_t task) +{ + int ret; + struct tevent_timer *te; + struct timeval timeout; + + ret = gettimeofday(&timeout, NULL); + if (ret == -1) { + DEBUG(1, ("gettimeofday failed [%d][%s].\n", errno, strerror(errno))); + return ret; + } + timeout.tv_sec += tv.tv_sec; + timeout.tv_usec += tv.tv_usec; + + + te = tevent_add_timer(lr->req->be_ctx->ev, lr, timeout, task, lr); + if (te == NULL) { + return EIO; + } + + return EOK; +} + +static int wait_for_fd(struct sdap_req *lr) +{ + int ret; + int fd; + struct tevent_fd *fde; + + ret = ldap_get_option(lr->ldap, LDAP_OPT_DESC, &fd); + if (ret != LDAP_OPT_SUCCESS) { + DEBUG(1, ("ldap_get_option failed.\n")); + return ret; + } + + fde = tevent_add_fd(lr->req->be_ctx->ev, lr, fd, TEVENT_FD_READ, lr->next_task, lr); + if (fde == NULL) { + return EIO; + } + + return EOK; +} + +static int sdap_pam_chauthtok(struct sdap_req *lr) +{ + BerElement *ber=NULL; + int ret; + int pam_status=PAM_SUCCESS; + struct berval *bv; + int msgid; + LDAPMessage *result=NULL; + int ldap_ret; + + ber = ber_alloc_t( LBER_USE_DER ); + if (ber == NULL) { + DEBUG(1, ("ber_alloc_t failed.\n")); + return PAM_SYSTEM_ERR; + } + + ret = ber_printf( ber, "{tststs}", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, + lr->user_dn, + LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, lr->pd->authtok, + LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, lr->pd->newauthtok); + if (ret == -1) { + DEBUG(1, ("ber_printf failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto cleanup; + } + + ret = ber_flatten(ber, &bv); + if (ret == -1) { + DEBUG(1, ("ber_flatten failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto cleanup; + } + + ret = ldap_extended_operation(lr->ldap, LDAP_EXOP_MODIFY_PASSWD, bv, + NULL, NULL, &msgid); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_extended_operation failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto cleanup; + } + + ret = ldap_result(lr->ldap, msgid, FALSE, NULL, &result); + if (ret == -1) { + DEBUG(1, ("ldap_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto cleanup; + } + ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, NULL, NULL, + NULL, 0); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_parse_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto cleanup; + } + DEBUG(3, ("LDAP_EXOP_MODIFY_PASSWD result: [%d][%s]\n", ldap_ret, + ldap_err2string(ldap_ret))); + + ldap_msgfree(result); + + if (ldap_ret != LDAP_SUCCESS) pam_status = PAM_SYSTEM_ERR; + +cleanup: + ber_bvfree(bv); + ber_free(ber, 1); + return pam_status; +} + +static int sdap_init(struct sdap_req *lr) +{ + int ret; + int status=EOK; + int ldap_vers = LDAP_VERSION3; + int msgid; + struct timeval network_timeout; + struct timeval opt_timeout; + + ret = ldap_initialize(&(lr->ldap), lr->sdap_ctx->ldap_uri); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_initialize failed: %s\n", strerror(errno))); + return EIO; + } + + /* LDAPv3 is needed for TLS */ + ret = ldap_set_option(lr->ldap, LDAP_OPT_PROTOCOL_VERSION, &ldap_vers); + if (ret != LDAP_OPT_SUCCESS) { + DEBUG(1, ("ldap_set_option failed: %s\n", ldap_err2string(ret))); + status = EIO; + goto cleanup; + } + + network_timeout.tv_sec = lr->sdap_ctx->network_timeout; + network_timeout.tv_usec = 0; + opt_timeout.tv_sec = lr->sdap_ctx->opt_timeout; + opt_timeout.tv_usec = 0; + ret = ldap_set_option(lr->ldap, LDAP_OPT_NETWORK_TIMEOUT, &network_timeout); + if (ret != LDAP_OPT_SUCCESS) { + DEBUG(1, ("ldap_set_option failed: %s\n", ldap_err2string(ret))); + status = EIO; + goto cleanup; + } + ret = ldap_set_option(lr->ldap, LDAP_OPT_TIMEOUT, &opt_timeout); + if (ret != LDAP_OPT_SUCCESS) { + DEBUG(1, ("ldap_set_option failed: %s\n", ldap_err2string(ret))); + status = EIO; + goto cleanup; + } + + /* For now TLS is forced. Maybe it would be necessary to make this + * configurable to allow people to expose their passwords over the + * network. */ + ret = ldap_start_tls(lr->ldap, NULL, NULL, &msgid); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_start_tls failed: [%d][%s]\n", ret, + ldap_err2string(ret))); + if (ret == LDAP_SERVER_DOWN) { + status = EAGAIN; + } else { + status = EIO; + } + goto cleanup; + } + + lr->msgid = msgid; + + return EOK; + +cleanup: + ldap_unbind_ext(lr->ldap, NULL, NULL); + lr->ldap = NULL; + return status; +} + +static int sdap_bind(struct sdap_req *lr) +{ + int ret; + int msgid; + char *dn=NULL; + struct berval pw; + + pw.bv_len = 0; + pw.bv_val = NULL; + + if (lr->user_dn != NULL) { + dn = lr->user_dn; + pw.bv_len = lr->pd->authtok_size; + pw.bv_val = (char *) lr->pd->authtok; + } + if (lr->user_dn == NULL && lr->sdap_ctx->default_bind_dn != NULL) { + dn = lr->sdap_ctx->default_bind_dn; + pw.bv_len = lr->sdap_ctx->default_authtok_size; + pw.bv_val = lr->sdap_ctx->default_authtok; + } + + DEBUG(3, ("Trying to bind as [%s][%*s]\n", dn, pw.bv_len, pw.bv_val)); + ret = ldap_sasl_bind(lr->ldap, dn, LDAP_SASL_SIMPLE, &pw, NULL, NULL, + &msgid); + if (ret == -1 || msgid == -1) { + DEBUG(1, ("ldap_bind failed\n")); + return LDAP_OTHER; + } + lr->msgid = msgid; + return LDAP_SUCCESS; +} + +static void sdap_pam_loop(struct tevent_context *ev, struct tevent_fd *te, + uint16_t fd, void *pvt) +{ + int ret; + int pam_status=PAM_SUCCESS; + int ldap_ret; + struct sdap_req *lr; + struct pam_data *pd; + struct be_req *req; + LDAPMessage *result=NULL; + LDAPMessage *msg=NULL; + struct timeval no_timeout={0, 0}; + char *errmsgp = NULL; +/* FIXME: user timeout form config */ + char *filter=NULL; + char *attrs[] = { LDAP_NO_ATTRS, NULL }; + + lr = talloc_get_type(pvt, struct sdap_req); + + switch (lr->next_step) { + case SDAP_OP_INIT: + ret = sdap_init(lr); + if (ret != EOK) { + DEBUG(1, ("sdap_init failed.\n")); + lr->ldap = NULL; + if (ret == EAGAIN) { + pam_status = PAM_AUTHINFO_UNAVAIL; + } else { + pam_status = PAM_SYSTEM_ERR; + } + goto done; + } + case SDAP_CHECK_INIT_RESULT: + ret = ldap_result(lr->ldap, lr->msgid, FALSE, &no_timeout, &result); + if (ret == -1) { + DEBUG(1, ("ldap_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + if (ret == 0) { + DEBUG(1, ("ldap_result not ready yet, waiting.\n")); + lr->next_task = sdap_pam_loop; + lr->next_step = SDAP_CHECK_INIT_RESULT; + ret = wait_for_fd(lr); + if (ret != EOK) { + DEBUG(1, ("schedule_next_task failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + return; + } + + ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, NULL, NULL, NULL, 0); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_parse_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + DEBUG(3, ("ldap_start_tls result: [%d][%s]\n", ldap_ret, ldap_err2string(ldap_ret))); + + if (ldap_ret != LDAP_SUCCESS) { + DEBUG(1, ("setting up TLS failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + +/* FIXME: take care that ldap_install_tls might block */ + ret = ldap_install_tls(lr->ldap); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_install_tls failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + ret = sdap_bind(lr); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("sdap_bind failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + case SDAP_CHECK_STD_BIND: + ret = ldap_result(lr->ldap, lr->msgid, FALSE, &no_timeout, &result); + if (ret == -1) { + DEBUG(1, ("ldap_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + if (ret == 0) { + DEBUG(1, ("ldap_result not ready yet, waiting.\n")); + lr->next_task = sdap_pam_loop; + lr->next_step = SDAP_CHECK_STD_BIND; + ret = wait_for_fd(lr); + if (ret != EOK) { + DEBUG(1, ("schedule_next_task failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + return; + } + + ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, &errmsgp, + NULL, NULL, 0); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_parse_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + DEBUG(3, ("Bind result: [%d][%s][%s]\n", ldap_ret, + ldap_err2string(ldap_ret), errmsgp)); + if (ldap_ret != LDAP_SUCCESS) { + DEBUG(1, ("bind failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + filter = talloc_asprintf(lr->sdap_ctx, + "(&(%s=%s)(objectclass=%s))", + lr->sdap_ctx->user_name_attribute, + lr->pd->user, + lr->sdap_ctx->user_object_class); + + DEBUG(4, ("calling ldap_search_ext with [%s].\n", filter)); + ret = ldap_search_ext(lr->ldap, + lr->sdap_ctx->user_search_base, + LDAP_SCOPE_SUBTREE, + filter, + attrs, + TRUE, + NULL, + NULL, + NULL, + 0, + &(lr->msgid)); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_search_ext failed [%d][%s].\n", ret, ldap_err2string(ret))); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + case SDAP_CHECK_SEARCH_DN_RESULT: + ret = ldap_result(lr->ldap, lr->msgid, TRUE, &no_timeout, &result); + if (ret == -1) { + DEBUG(1, ("ldap_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + if (ret == 0) { + DEBUG(1, ("ldap_result not ready yet, waiting.\n")); + lr->next_task = sdap_pam_loop; + lr->next_step = SDAP_CHECK_SEARCH_DN_RESULT; + ret = wait_for_fd(lr); + if (ret != EOK) { + DEBUG(1, ("schedule_next_task failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + return; + } + + msg = ldap_first_message(lr->ldap, result); + if (msg == NULL) { + DEBUG(1, ("ldap_first_message failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + do { + switch ( ldap_msgtype(msg) ) { + case LDAP_RES_SEARCH_ENTRY: + if (lr->user_dn != NULL) { + DEBUG(1, ("Found more than one object with filter [%s].\n", + filter)); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + lr->user_dn = ldap_get_dn(lr->ldap, msg); + if (lr->user_dn == NULL) { + DEBUG(1, ("ldap_get_dn failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + if ( *(lr->user_dn) == '\0' ) { + DEBUG(1, ("No user found.\n")); + pam_status = PAM_USER_UNKNOWN; + goto done; + } + DEBUG(3, ("Found dn: %s\n",lr->user_dn)); + + ldap_msgfree(result); + result = NULL; + break; + default: + DEBUG(3, ("ignoring message with type %d.\n", ldap_msgtype(msg))); + } + } while( (msg=ldap_next_message(lr->ldap, msg)) != NULL ); + + switch (lr->pd->cmd) { + case SSS_PAM_AUTHENTICATE: + case SSS_PAM_CHAUTHTOK: + break; + case SSS_PAM_ACCT_MGMT: + case SSS_PAM_SETCRED: + case SSS_PAM_OPEN_SESSION: + case SSS_PAM_CLOSE_SESSION: + pam_status = PAM_SUCCESS; + goto done; + break; + default: + DEBUG(1, ("Unknown pam command %d.\n", lr->pd->cmd)); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + ret = sdap_bind(lr); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("sdap_bind failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + case SDAP_CHECK_USER_BIND: + ret = ldap_result(lr->ldap, lr->msgid, FALSE, &no_timeout, &result); + if (ret == -1) { + DEBUG(1, ("ldap_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + if (ret == 0) { + DEBUG(1, ("ldap_result not ready yet, waiting.\n")); + lr->next_task = sdap_pam_loop; + lr->next_step = SDAP_CHECK_USER_BIND; + ret = wait_for_fd(lr); + if (ret != EOK) { + DEBUG(1, ("schedule_next_task failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + return; + } + + ret = ldap_parse_result(lr->ldap, result, &ldap_ret, NULL, &errmsgp, + NULL, NULL, 0); + if (ret != LDAP_SUCCESS) { + DEBUG(1, ("ldap_parse_result failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + DEBUG(3, ("Bind result: [%d][%s][%s]\n", ldap_ret, + ldap_err2string(ldap_ret), errmsgp)); + switch (ldap_ret) { + case LDAP_SUCCESS: + pam_status = PAM_SUCCESS; + break; + case LDAP_INVALID_CREDENTIALS: + pam_status = PAM_CRED_INSUFFICIENT; + goto done; + break; + default: + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + switch (lr->pd->cmd) { + case SSS_PAM_AUTHENTICATE: + pam_status = PAM_SUCCESS; + break; + case SSS_PAM_CHAUTHTOK: + pam_status = sdap_pam_chauthtok(lr); + break; + case SSS_PAM_ACCT_MGMT: + case SSS_PAM_SETCRED: + case SSS_PAM_OPEN_SESSION: + case SSS_PAM_CLOSE_SESSION: + pam_status = PAM_SUCCESS; + break; + default: + DEBUG(1, ("Unknown pam command %d.\n", lr->pd->cmd)); + pam_status = PAM_SYSTEM_ERR; + } + break; + default: + DEBUG(1, ("Unknown ldap backend operation %d.\n", lr->next_step)); + pam_status = PAM_SYSTEM_ERR; + } + +done: + ldap_memfree(errmsgp); + ldap_msgfree(result); + talloc_free(filter); + if (lr->ldap != NULL) ldap_unbind_ext(lr->ldap, NULL, NULL); + req = lr->req; + pd = talloc_get_type(lr->req->req_data, struct pam_data); + pd->pam_status = pam_status; + + talloc_free(lr); + + req->fn(req, pam_status, NULL); +} + +static void sdap_start(struct tevent_context *ev, struct tevent_timer *te, + struct timeval tv, void *pvt) +{ + int ret; + int pam_status; + struct sdap_req *lr; + struct be_req *req; + struct pam_data *pd; + + lr = talloc_get_type(pvt, struct sdap_req); + + ret = sdap_init(lr); + if (ret != EOK) { + DEBUG(1, ("sdap_init failed.\n")); + lr->ldap = NULL; + if (ret == EAGAIN) { + pam_status = PAM_AUTHINFO_UNAVAIL; + } else { + pam_status = PAM_SYSTEM_ERR; + } + goto done; + } + + lr->next_task = sdap_pam_loop; + lr->next_step = SDAP_CHECK_INIT_RESULT; + ret = wait_for_fd(lr); + if (ret != EOK) { + DEBUG(1, ("schedule_next_task failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + return; + +done: + if (lr->ldap != NULL ) ldap_unbind_ext(lr->ldap, NULL, NULL); + req = lr->req; + pd = talloc_get_type(lr->req->req_data, struct pam_data); + pd->pam_status = pam_status; + + talloc_free(lr); + + req->fn(req, pam_status, NULL); +} + +static void sdap_pam_handler(struct be_req *req) +{ + int ret; + int pam_status=PAM_SUCCESS; + struct sdap_req *lr; + struct sdap_ctx *sdap_ctx; + struct pam_data *pd; + struct timeval timeout; + + pd = talloc_get_type(req->req_data, struct pam_data); + + sdap_ctx = talloc_get_type(req->be_ctx->pvt_auth_data, struct sdap_ctx); + + lr = talloc(req, struct sdap_req); + + lr->ldap = NULL; + lr->req = req; + lr->pd = pd; + lr->sdap_ctx = sdap_ctx; + lr->user_dn = NULL; + lr->next_task = NULL; + lr->next_step = SDAP_NOOP; + + timeout.tv_sec=0; + timeout.tv_usec=0; + ret = schedule_next_task(lr, timeout, sdap_start); + if (ret != EOK) { + DEBUG(1, ("schedule_next_task failed.\n")); + pam_status = PAM_SYSTEM_ERR; + goto done; + } + + return; + +done: + talloc_free(lr); + + pd->pam_status = pam_status; + req->fn(req, pam_status, NULL); +} + +static void sdap_shutdown(struct be_req *req) +{ + /* TODO: Clean up any internal data */ + req->fn(req, EOK, NULL); +} + +struct be_auth_ops sdap_auth_ops = { + .pam_handler = sdap_pam_handler, + .finalize = sdap_shutdown +}; + + +int sssm_ldap_init(struct be_ctx *bectx, + struct be_id_ops **ops, void **pvt_data) +{ + struct sdap_ctx *ctx; +} + + +{ + char *ldap_uri; + char *default_bind_dn; + char *default_authtok_type; + char *default_authtok; + char *user_search_base; + char *user_name_attribute; + char *user_object_class; + int network_timeout; + int opt_timeout; + int ret; + + ctx = talloc(bectx, struct sdap_ctx); + if (!ctx) { + return ENOMEM; + } + +/* TODO: add validation checks for ldapUri, user_search_base, + * user_name_attribute, etc */ + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "ldapUri", "ldap://localhost", &ldap_uri); + if (ret != EOK) goto done; + ctx->ldap_uri = ldap_uri; + + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "defaultBindDn", NULL, &default_bind_dn); + if (ret != EOK) goto done; + ctx->default_bind_dn = default_bind_dn; + + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "defaultAuthtokType", NULL, &default_authtok_type); + if (ret != EOK) goto done; + ctx->default_authtok_type = default_authtok_type; + + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "userSearchBase", NULL, &user_search_base); + if (ret != EOK) goto done; + if (user_search_base == NULL) { + DEBUG(1, ("missing userSearchBase.\n")); + ret = EINVAL; + goto done; + } + ctx->user_search_base = user_search_base; + + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "userNameAttribute", "uid", &user_name_attribute); + if (ret != EOK) goto done; + ctx->user_name_attribute = user_name_attribute; + + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "userObjectClass", "posixAccount", + &user_object_class); + if (ret != EOK) goto done; + ctx->user_object_class = user_object_class; + +/* TODO: better to have a blob object than a string here */ + ret = confdb_get_string(bectx->cdb, ctx, bectx->conf_path, + "defaultAuthtok", NULL, &default_authtok); + if (ret != EOK) goto done; + ctx->default_authtok = default_authtok; + ctx->default_authtok_size = (default_authtok==NULL?0:strlen(default_authtok)); + + ret = confdb_get_int(bectx->cdb, ctx, bectx->conf_path, + "network_timeout", 5, &network_timeout); + if (ret != EOK) goto done; + ctx->network_timeout = network_timeout; + + ret = confdb_get_int(bectx->cdb, ctx, bectx->conf_path, + "opt_timeout", 5, &opt_timeout); + if (ret != EOK) goto done; + ctx->network_timeout = opt_timeout; + + *ops = &sdap_auth_ops; + *pvt_data = ctx; + ret = EOK; + +done: + if (ret != EOK) { + talloc_free(ctx); + } + return ret; +} + +#endif diff --git a/server/server.mk b/server/server.mk index f5fd46ebc..f61cdf28e 100644 --- a/server/server.mk +++ b/server/server.mk @@ -38,7 +38,8 @@ PROXY_BE_OBJ = \ providers/proxy.o LDAP_BE_OBJ = \ - providers/ldap_be.o + providers/ldap/ldap_id.o \ + providers/ldap/ldap_auth.o NSSSRV_OBJ = \ responder/nss/nsssrv.o \ -- cgit