OpenSolaris_b135/cmd/idmap/idmapd/server.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Service routines
*/
#include "idmapd.h"
#include "idmap_priv.h"
#include "nldaputils.h"
#include <signal.h>
#include <thread.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <ucred.h>
#include <pwd.h>
#include <auth_attr.h>
#include <secdb.h>
#include <sys/u8_textprep.h>
#include <note.h>
#define _VALIDATE_LIST_CB_DATA(col, val, siz)\
retcode = validate_list_cb_data(cb_data, argc, argv, col,\
(uchar_t **)val, siz);\
if (retcode == IDMAP_NEXT) {\
result->retcode = IDMAP_NEXT;\
return (0);\
} else if (retcode < 0) {\
result->retcode = retcode;\
return (1);\
}
#define PROCESS_LIST_SVC_SQL(rcode, db, dbname, sql, limit, flag, cb, res, len)\
rcode = process_list_svc_sql(db, dbname, sql, limit, flag, cb, res);\
if (rcode == IDMAP_ERR_BUSY)\
res->retcode = IDMAP_ERR_BUSY;\
else if (rcode == IDMAP_SUCCESS && len == 0)\
res->retcode = IDMAP_ERR_NOTFOUND;
#define STRDUP_OR_FAIL(to, from) \
if ((from) == NULL) \
to = NULL; \
else { \
if ((to = strdup(from)) == NULL) \
return (1); \
}
#define STRDUP_CHECK(to, from) \
if ((from) != NULL) { \
to = strdup(from); \
if (to == NULL) { \
result->retcode = IDMAP_ERR_MEMORY; \
goto out; \
} \
}
/* ARGSUSED */
bool_t
idmap_null_1_svc(void *result, struct svc_req *rqstp)
{
return (TRUE);
}
/*
* RPC layer allocates empty strings to replace NULL char *.
* This utility function frees these empty strings.
*/
static
void
sanitize_mapping_request(idmap_mapping *req)
{
if (EMPTY_STRING(req->id1name)) {
free(req->id1name);
req->id1name = NULL;
}
if (EMPTY_STRING(req->id1domain)) {
free(req->id1domain);
req->id1domain = NULL;
}
if (EMPTY_STRING(req->id2name)) {
free(req->id2name);
req->id2name = NULL;
}
if (EMPTY_STRING(req->id2domain)) {
free(req->id2domain);
req->id2domain = NULL;
}
req->direction = _IDMAP_F_DONE;
}
static
int
validate_mapped_id_by_name_req(idmap_mapping *req)
{
int e;
if (IS_REQUEST_UID(*req) || IS_REQUEST_GID(*req))
return (IDMAP_SUCCESS);
if (IS_REQUEST_SID(*req, 1)) {
if (!EMPTY_STRING(req->id1name) &&
u8_validate(req->id1name, strlen(req->id1name),
NULL, U8_VALIDATE_ENTIRE, &e) < 0)
return (IDMAP_ERR_BAD_UTF8);
if (!EMPTY_STRING(req->id1domain) &&
u8_validate(req->id1domain, strlen(req->id1domain),
NULL, U8_VALIDATE_ENTIRE, &e) < 0)
return (IDMAP_ERR_BAD_UTF8);
}
return (IDMAP_SUCCESS);
}
static
int
validate_rule(idmap_namerule *rule)
{
int e;
if (!EMPTY_STRING(rule->winname) &&
u8_validate(rule->winname, strlen(rule->winname),
NULL, U8_VALIDATE_ENTIRE, &e) < 0)
return (IDMAP_ERR_BAD_UTF8);
if (!EMPTY_STRING(rule->windomain) &&
u8_validate(rule->windomain, strlen(rule->windomain),
NULL, U8_VALIDATE_ENTIRE, &e) < 0)
return (IDMAP_ERR_BAD_UTF8);
return (IDMAP_SUCCESS);
}
static
bool_t
validate_rules(idmap_update_batch *batch)
{
idmap_update_op *up;
int i;
for (i = 0; i < batch->idmap_update_batch_len; i++) {
up = &(batch->idmap_update_batch_val[i]);
if (validate_rule(&(up->idmap_update_op_u.rule))
!= IDMAP_SUCCESS)
return (IDMAP_ERR_BAD_UTF8);
}
return (IDMAP_SUCCESS);
}
/* ARGSUSED */
bool_t
idmap_get_mapped_ids_1_svc(idmap_mapping_batch batch,
idmap_ids_res *result, struct svc_req *rqstp)
{
sqlite *cache = NULL, *db = NULL;
lookup_state_t state;
idmap_retcode retcode;
uint_t i;
/* Init */
(void) memset(result, 0, sizeof (*result));
(void) memset(&state, 0, sizeof (state));
/* Return success if nothing was requested */
if (batch.idmap_mapping_batch_len < 1)
goto out;
/* Get cache handle */
result->retcode = get_cache_handle(&cache);
if (result->retcode != IDMAP_SUCCESS)
goto out;
state.cache = cache;
/* Get db handle */
result->retcode = get_db_handle(&db);
if (result->retcode != IDMAP_SUCCESS)
goto out;
state.db = db;
/* Allocate result array */
result->ids.ids_val = calloc(batch.idmap_mapping_batch_len,
sizeof (idmap_id_res));
if (result->ids.ids_val == NULL) {
idmapdlog(LOG_ERR, "Out of memory");
result->retcode = IDMAP_ERR_MEMORY;
goto out;
}
result->ids.ids_len = batch.idmap_mapping_batch_len;
/* Allocate hash table to check for duplicate sids */
state.sid_history = calloc(batch.idmap_mapping_batch_len,
sizeof (*state.sid_history));
if (state.sid_history == NULL) {
idmapdlog(LOG_ERR, "Out of memory");
result->retcode = IDMAP_ERR_MEMORY;
goto out;
}
state.sid_history_size = batch.idmap_mapping_batch_len;
for (i = 0; i < state.sid_history_size; i++) {
state.sid_history[i].key = state.sid_history_size;
state.sid_history[i].next = state.sid_history_size;
}
state.batch = &batch;
state.result = result;
/* Get directory-based name mapping info */
result->retcode = load_cfg_in_state(&state);
if (result->retcode != IDMAP_SUCCESS)
goto out;
/* Init our 'done' flags */
state.sid2pid_done = state.pid2sid_done = TRUE;
/* First stage */
for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
state.curpos = i;
(void) sanitize_mapping_request(
&batch.idmap_mapping_batch_val[i]);
if (IS_BATCH_SID(batch, i)) {
retcode = sid2pid_first_pass(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i]);
} else if (IS_BATCH_UID(batch, i)) {
retcode = pid2sid_first_pass(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i], 1);
} else if (IS_BATCH_GID(batch, i)) {
retcode = pid2sid_first_pass(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i], 0);
} else {
result->ids.ids_val[i].retcode = IDMAP_ERR_IDTYPE;
continue;
}
if (IDMAP_FATAL_ERROR(retcode)) {
result->retcode = retcode;
goto out;
}
}
/* Check if we are done */
if (state.sid2pid_done == TRUE && state.pid2sid_done == TRUE)
goto out;
/*
* native LDAP lookups:
* pid2sid:
* - nldap or mixed mode. Lookup nldap by pid or unixname to get
* winname.
* sid2pid:
* - nldap mode. Got winname and sid (either given or found in
* name_cache). Lookup nldap by winname to get pid and
* unixname.
*/
if (state.nldap_nqueries) {
retcode = nldap_lookup_batch(&state, &batch, result);
if (IDMAP_FATAL_ERROR(retcode)) {
result->retcode = retcode;
goto out;
}
}
/*
* AD lookups:
* pid2sid:
* - nldap or mixed mode. Got winname from nldap lookup.
* winname2sid could not be resolved locally. Lookup AD
* by winname to get sid.
* - ad mode. Got unixname. Lookup AD by unixname to get
* winname and sid.
* sid2pid:
* - ad or mixed mode. Lookup AD by sid or winname to get
* winname, sid and unixname.
* - any mode. Got either sid or winname but not both. Lookup
* AD by sid or winname to get winname, sid.
*/
if (state.ad_nqueries) {
retcode = ad_lookup_batch(&state, &batch, result);
if (IDMAP_FATAL_ERROR(retcode)) {
result->retcode = retcode;
goto out;
}
}
/*
* native LDAP lookups:
* sid2pid:
* - nldap mode. Got winname and sid from AD lookup. Lookup nldap
* by winname to get pid and unixname.
*/
if (state.nldap_nqueries) {
retcode = nldap_lookup_batch(&state, &batch, result);
if (IDMAP_FATAL_ERROR(retcode)) {
result->retcode = retcode;
goto out;
}
}
/* Reset 'done' flags */
state.sid2pid_done = state.pid2sid_done = TRUE;
/* Second stage */
for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
state.curpos = i;
if (IS_BATCH_SID(batch, i)) {
retcode = sid2pid_second_pass(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i]);
} else if (IS_BATCH_UID(batch, i)) {
retcode = pid2sid_second_pass(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i], 1);
} else if (IS_BATCH_GID(batch, i)) {
retcode = pid2sid_second_pass(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i], 0);
} else {
/* First stage has already set the error */
continue;
}
if (IDMAP_FATAL_ERROR(retcode)) {
result->retcode = retcode;
goto out;
}
}
/* Check if we are done */
if (state.sid2pid_done == TRUE && state.pid2sid_done == TRUE)
goto out;
/* Reset our 'done' flags */
state.sid2pid_done = state.pid2sid_done = TRUE;
/* Update cache in a single transaction */
if (sql_exec_no_cb(cache, IDMAP_CACHENAME, "BEGIN TRANSACTION;")
!= IDMAP_SUCCESS)
goto out;
for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
state.curpos = i;
if (IS_BATCH_SID(batch, i)) {
(void) update_cache_sid2pid(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i]);
} else if ((IS_BATCH_UID(batch, i)) ||
(IS_BATCH_GID(batch, i))) {
(void) update_cache_pid2sid(
&state,
&batch.idmap_mapping_batch_val[i],
&result->ids.ids_val[i]);
}
}
/* Commit if we have at least one successful update */
if (state.sid2pid_done == FALSE || state.pid2sid_done == FALSE)
(void) sql_exec_no_cb(cache, IDMAP_CACHENAME,
"COMMIT TRANSACTION;");
else
(void) sql_exec_no_cb(cache, IDMAP_CACHENAME,
"END TRANSACTION;");
out:
cleanup_lookup_state(&state);
if (IDMAP_ERROR(result->retcode)) {
xdr_free(xdr_idmap_ids_res, (caddr_t)result);
result->ids.ids_len = 0;
result->ids.ids_val = NULL;
}
result->retcode = idmap_stat4prot(result->retcode);
return (TRUE);
}
/* ARGSUSED */
static
int
list_mappings_cb(void *parg, int argc, char **argv, char **colnames)
{
list_cb_data_t *cb_data;
char *str;
idmap_mappings_res *result;
idmap_retcode retcode;
int w2u, u2w;
char *end;
static int validated_column_names = 0;
idmap_how *how;
cb_data = (list_cb_data_t *)parg;
if (!validated_column_names) {
assert(strcmp(colnames[0], "rowid") == 0);
assert(strcmp(colnames[1], "sidprefix") == 0);
assert(strcmp(colnames[2], "rid") == 0);
assert(strcmp(colnames[3], "pid") == 0);
assert(strcmp(colnames[4], "w2u") == 0);
assert(strcmp(colnames[5], "u2w") == 0);
assert(strcmp(colnames[6], "windomain") == 0);
assert(strcmp(colnames[7], "canon_winname") == 0);
assert(strcmp(colnames[8], "unixname") == 0);
assert(strcmp(colnames[9], "is_user") == 0);
assert(strcmp(colnames[10], "is_wuser") == 0);
assert(strcmp(colnames[11], "map_type") == 0);
assert(strcmp(colnames[12], "map_dn") == 0);
assert(strcmp(colnames[13], "map_attr") == 0);
assert(strcmp(colnames[14], "map_value") == 0);
assert(strcmp(colnames[15], "map_windomain") == 0);
assert(strcmp(colnames[16], "map_winname") == 0);
assert(strcmp(colnames[17], "map_unixname") == 0);
assert(strcmp(colnames[18], "map_is_nt4") == 0);
validated_column_names = 1;
}
result = (idmap_mappings_res *)cb_data->result;
_VALIDATE_LIST_CB_DATA(19, &result->mappings.mappings_val,
sizeof (idmap_mapping));
result->mappings.mappings_len++;
if ((str = strdup(argv[1])) == NULL)
return (1);
result->mappings.mappings_val[cb_data->next].id1.idmap_id_u.sid.prefix =
str;
result->mappings.mappings_val[cb_data->next].id1.idmap_id_u.sid.rid =
strtoul(argv[2], &end, 10);
result->mappings.mappings_val[cb_data->next].id1.idtype =
strtol(argv[10], &end, 10) ? IDMAP_USID : IDMAP_GSID;
result->mappings.mappings_val[cb_data->next].id2.idmap_id_u.uid =
strtoul(argv[3], &end, 10);
result->mappings.mappings_val[cb_data->next].id2.idtype =
strtol(argv[9], &end, 10) ? IDMAP_UID : IDMAP_GID;
w2u = argv[4] ? strtol(argv[4], &end, 10) : 0;
u2w = argv[5] ? strtol(argv[5], &end, 10) : 0;
if (w2u > 0 && u2w == 0)
result->mappings.mappings_val[cb_data->next].direction =
IDMAP_DIRECTION_W2U;
else if (w2u == 0 && u2w > 0)
result->mappings.mappings_val[cb_data->next].direction =
IDMAP_DIRECTION_U2W;
else
result->mappings.mappings_val[cb_data->next].direction =
IDMAP_DIRECTION_BI;
STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id1domain,
argv[6]);
STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id1name,
argv[7]);
STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id2name,
argv[8]);
if (cb_data->flag & IDMAP_REQ_FLG_MAPPING_INFO) {
how = &result->mappings.mappings_val[cb_data->next].info.how;
how->map_type = strtoul(argv[11], &end, 10);
switch (how->map_type) {
case IDMAP_MAP_TYPE_DS_AD:
how->idmap_how_u.ad.dn =
strdup(argv[12]);
how->idmap_how_u.ad.attr =
strdup(argv[13]);
how->idmap_how_u.ad.value =
strdup(argv[14]);
break;
case IDMAP_MAP_TYPE_DS_NLDAP:
how->idmap_how_u.nldap.dn =
strdup(argv[12]);
how->idmap_how_u.nldap.attr =
strdup(argv[13]);
how->idmap_how_u.nldap.value =
strdup(argv[14]);
break;
case IDMAP_MAP_TYPE_RULE_BASED:
how->idmap_how_u.rule.windomain =
strdup(argv[15]);
how->idmap_how_u.rule.winname =
strdup(argv[16]);
how->idmap_how_u.rule.unixname =
strdup(argv[17]);
how->idmap_how_u.rule.is_nt4 =
strtoul(argv[18], &end, 10);
how->idmap_how_u.rule.is_user =
strtol(argv[9], &end, 10);
how->idmap_how_u.rule.is_wuser =
strtol(argv[10], &end, 10);
break;
case IDMAP_MAP_TYPE_EPHEMERAL:
break;
case IDMAP_MAP_TYPE_LOCAL_SID:
break;
case IDMAP_MAP_TYPE_IDMU:
how->idmap_how_u.idmu.dn =
strdup(argv[12]);
how->idmap_how_u.idmu.attr =
strdup(argv[13]);
how->idmap_how_u.idmu.value =
strdup(argv[14]);
break;
default:
/* Unknown mapping type */
assert(FALSE);
}
}
result->lastrowid = strtoll(argv[0], &end, 10);
cb_data->next++;
result->retcode = IDMAP_SUCCESS;
return (0);
}
/* ARGSUSED */
bool_t
idmap_list_mappings_1_svc(int64_t lastrowid, uint64_t limit, int32_t flag,
idmap_mappings_res *result, struct svc_req *rqstp)
{
sqlite *cache = NULL;
char lbuf[30], rbuf[30];
uint64_t maxlimit;
idmap_retcode retcode;
char *sql = NULL;
time_t curtime;
(void) memset(result, 0, sizeof (*result));
/* Current time */
errno = 0;
if ((curtime = time(NULL)) == (time_t)-1) {
idmapdlog(LOG_ERR, "Failed to get current time (%s)",
strerror(errno));
retcode = IDMAP_ERR_INTERNAL;
goto out;
}
RDLOCK_CONFIG();
maxlimit = _idmapdstate.cfg->pgcfg.list_size_limit;
UNLOCK_CONFIG();
/* Get cache handle */
result->retcode = get_cache_handle(&cache);
if (result->retcode != IDMAP_SUCCESS)
goto out;
result->retcode = IDMAP_ERR_INTERNAL;
/* Create LIMIT expression. */
if (limit == 0 || (maxlimit > 0 && maxlimit < limit))
limit = maxlimit;
if (limit > 0)
(void) snprintf(lbuf, sizeof (lbuf),
"LIMIT %" PRIu64, limit + 1ULL);
else
lbuf[0] = '\0';
(void) snprintf(rbuf, sizeof (rbuf), "rowid > %" PRIu64, lastrowid);
/*
* Combine all the above into a giant SELECT statement that
* will return the requested mappings
*/
sql = sqlite_mprintf("SELECT rowid, sidprefix, rid, pid, w2u, "
"u2w, windomain, canon_winname, unixname, is_user, is_wuser, "
"map_type, map_dn, map_attr, map_value, map_windomain, "
"map_winname, map_unixname, map_is_nt4 "
"FROM idmap_cache WHERE %s AND "
"(pid >= 2147483648 OR (expiration = 0 OR "
"expiration ISNULL OR expiration > %d)) "
"%s;",
rbuf, curtime, lbuf);
if (sql == NULL) {
result->retcode = IDMAP_ERR_MEMORY;
idmapdlog(LOG_ERR, "Out of memory");
goto out;
}
/* Execute the SQL statement and update the return buffer */
PROCESS_LIST_SVC_SQL(retcode, cache, IDMAP_CACHENAME, sql, limit,
flag, list_mappings_cb, result, result->mappings.mappings_len);
out:
if (sql)
sqlite_freemem(sql);
if (IDMAP_ERROR(result->retcode))
(void) xdr_free(xdr_idmap_mappings_res, (caddr_t)result);
result->retcode = idmap_stat4prot(result->retcode);
return (TRUE);
}
/* ARGSUSED */
static
int
list_namerules_cb(void *parg, int argc, char **argv, char **colnames)
{
list_cb_data_t *cb_data;
idmap_namerules_res *result;
idmap_retcode retcode;
int w2u_order, u2w_order;
char *end;
static int validated_column_names = 0;
if (!validated_column_names) {
assert(strcmp(colnames[0], "rowid") == 0);
assert(strcmp(colnames[1], "is_user") == 0);
assert(strcmp(colnames[2], "is_wuser") == 0);
assert(strcmp(colnames[3], "windomain") == 0);
assert(strcmp(colnames[4], "winname_display") == 0);
assert(strcmp(colnames[5], "is_nt4") == 0);
assert(strcmp(colnames[6], "unixname") == 0);
assert(strcmp(colnames[7], "w2u_order") == 0);
assert(strcmp(colnames[8], "u2w_order") == 0);
validated_column_names = 1;
}
cb_data = (list_cb_data_t *)parg;
result = (idmap_namerules_res *)cb_data->result;
_VALIDATE_LIST_CB_DATA(9, &result->rules.rules_val,
sizeof (idmap_namerule));
result->rules.rules_len++;
result->rules.rules_val[cb_data->next].is_user =
strtol(argv[1], &end, 10);
result->rules.rules_val[cb_data->next].is_wuser =
strtol(argv[2], &end, 10);
STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].windomain,
argv[3]);
STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].winname,
argv[4]);
result->rules.rules_val[cb_data->next].is_nt4 =
strtol(argv[5], &end, 10);
STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].unixname,
argv[6]);
w2u_order = argv[7] ? strtol(argv[7], &end, 10) : 0;
u2w_order = argv[8] ? strtol(argv[8], &end, 10) : 0;
if (w2u_order > 0 && u2w_order == 0)
result->rules.rules_val[cb_data->next].direction =
IDMAP_DIRECTION_W2U;
else if (w2u_order == 0 && u2w_order > 0)
result->rules.rules_val[cb_data->next].direction =
IDMAP_DIRECTION_U2W;
else
result->rules.rules_val[cb_data->next].direction =
IDMAP_DIRECTION_BI;
result->lastrowid = strtoll(argv[0], &end, 10);
cb_data->next++;
result->retcode = IDMAP_SUCCESS;
return (0);
}
/* ARGSUSED */
bool_t
idmap_list_namerules_1_svc(idmap_namerule rule, uint64_t lastrowid,
uint64_t limit, idmap_namerules_res *result,
struct svc_req *rqstp)
{
sqlite *db = NULL;
char lbuf[30], rbuf[30];
char *sql = NULL;
char *expr = NULL;
uint64_t maxlimit;
idmap_retcode retcode;
(void) memset(result, 0, sizeof (*result));
result->retcode = validate_rule(&rule);
if (result->retcode != IDMAP_SUCCESS)
goto out;
RDLOCK_CONFIG();
maxlimit = _idmapdstate.cfg->pgcfg.list_size_limit;
UNLOCK_CONFIG();
/* Get db handle */
result->retcode = get_db_handle(&db);
if (result->retcode != IDMAP_SUCCESS)
goto out;
result->retcode = gen_sql_expr_from_rule(&rule, &expr);
if (result->retcode != IDMAP_SUCCESS)
goto out;
/* Create LIMIT expression. */
if (limit == 0 || (maxlimit > 0 && maxlimit < limit))
limit = maxlimit;
if (limit > 0)
(void) snprintf(lbuf, sizeof (lbuf),
"LIMIT %" PRIu64, limit + 1ULL);
else
lbuf[0] = '\0';
(void) snprintf(rbuf, sizeof (rbuf), "rowid > %" PRIu64, lastrowid);
/*
* Combine all the above into a giant SELECT statement that
* will return the requested rules
*/
sql = sqlite_mprintf("SELECT rowid, is_user, is_wuser, windomain, "
"winname_display, is_nt4, unixname, w2u_order, u2w_order "
"FROM namerules WHERE "
" %s %s %s;",
rbuf, expr, lbuf);
if (sql == NULL) {
result->retcode = IDMAP_ERR_MEMORY;
idmapdlog(LOG_ERR, "Out of memory");
goto out;
}
/* Execute the SQL statement and update the return buffer */
PROCESS_LIST_SVC_SQL(retcode, db, IDMAP_DBNAME, sql, limit,
0, list_namerules_cb, result, result->rules.rules_len);
out:
if (expr)
sqlite_freemem(expr);
if (sql)
sqlite_freemem(sql);
if (IDMAP_ERROR(result->retcode))
(void) xdr_free(xdr_idmap_namerules_res, (caddr_t)result);
result->retcode = idmap_stat4prot(result->retcode);
return (TRUE);
}
#define IDMAP_RULES_AUTH "solaris.admin.idmap.rules"
static int
verify_rules_auth(struct svc_req *rqstp)
{
ucred_t *uc = NULL;
uid_t uid;
char buf[1024];
struct passwd pwd;
if (svc_getcallerucred(rqstp->rq_xprt, &uc) != 0) {
idmapdlog(LOG_ERR, "svc_getcallerucred failed during "
"authorization (%s)", strerror(errno));
return (-1);
}
uid = ucred_geteuid(uc);
if (uid == (uid_t)-1) {
idmapdlog(LOG_ERR, "ucred_geteuid failed during "
"authorization (%s)", strerror(errno));
ucred_free(uc);
return (-1);
}
if (getpwuid_r(uid, &pwd, buf, sizeof (buf)) == NULL) {
idmapdlog(LOG_ERR, "getpwuid_r(%u) failed during "
"authorization (%s)", uid, strerror(errno));
ucred_free(uc);
return (-1);
}
if (chkauthattr(IDMAP_RULES_AUTH, pwd.pw_name) != 1) {
idmapdlog(LOG_INFO, "%s is not authorized (%s)",
pwd.pw_name, IDMAP_RULES_AUTH);
ucred_free(uc);
return (-1);
}
ucred_free(uc);
return (1);
}
/*
* Meaning of the return values is the following: For retcode ==
* IDMAP_SUCCESS, everything went OK and error_index is
* undefined. Otherwise, error_index >=0 shows the failed batch
* element. errro_index == -1 indicates failure at the beginning,
* error_index == -2 at the end.
*/
/* ARGSUSED */
bool_t
idmap_update_1_svc(idmap_update_batch batch, idmap_update_res *res,
struct svc_req *rqstp)
{
sqlite *db = NULL;
idmap_update_op *up;
int i;
int trans = FALSE;
res->error_index = -1;
(void) memset(&res->error_rule, 0, sizeof (res->error_rule));
(void) memset(&res->conflict_rule, 0, sizeof (res->conflict_rule));
if (verify_rules_auth(rqstp) < 0) {
res->retcode = IDMAP_ERR_PERMISSION_DENIED;
goto out;
}
if (batch.idmap_update_batch_len == 0 ||
batch.idmap_update_batch_val == NULL) {
res->retcode = IDMAP_SUCCESS;
goto out;
}
res->retcode = validate_rules(&batch);
if (res->retcode != IDMAP_SUCCESS)
goto out;
/* Get db handle */
res->retcode = get_db_handle(&db);
if (res->retcode != IDMAP_SUCCESS)
goto out;
res->retcode = sql_exec_no_cb(db, IDMAP_DBNAME, "BEGIN TRANSACTION;");
if (res->retcode != IDMAP_SUCCESS)
goto out;
trans = TRUE;
for (i = 0; i < batch.idmap_update_batch_len; i++) {
up = &batch.idmap_update_batch_val[i];
switch (up->opnum) {
case OP_NONE:
res->retcode = IDMAP_SUCCESS;
break;
case OP_ADD_NAMERULE:
res->retcode = add_namerule(db,
&up->idmap_update_op_u.rule);
break;
case OP_RM_NAMERULE:
res->retcode = rm_namerule(db,
&up->idmap_update_op_u.rule);
break;
case OP_FLUSH_NAMERULES:
res->retcode = flush_namerules(db);
break;
default:
res->retcode = IDMAP_ERR_NOTSUPPORTED;
break;
};
if (res->retcode != IDMAP_SUCCESS) {
res->error_index = i;
if (up->opnum == OP_ADD_NAMERULE ||
up->opnum == OP_RM_NAMERULE) {
idmap_stat r2 =
idmap_namerule_cpy(&res->error_rule,
&up->idmap_update_op_u.rule);
if (r2 != IDMAP_SUCCESS)
res->retcode = r2;
}
goto out;
}
}
out:
if (trans) {
if (res->retcode == IDMAP_SUCCESS) {
res->retcode =
sql_exec_no_cb(db, IDMAP_DBNAME,
"COMMIT TRANSACTION;");
if (res->retcode != IDMAP_SUCCESS)
res->error_index = -2;
}
else
(void) sql_exec_no_cb(db, IDMAP_DBNAME,
"ROLLBACK TRANSACTION;");
}
res->retcode = idmap_stat4prot(res->retcode);
return (TRUE);
}
static
int
copy_string(char **to, char *from)
{
if (EMPTY_STRING(from)) {
*to = NULL;
} else {
*to = strdup(from);
if (*to == NULL) {
idmapdlog(LOG_ERR, "Out of memory");
return (IDMAP_ERR_MEMORY);
}
}
return (IDMAP_SUCCESS);
}
static
int
copy_id(idmap_id *to, idmap_id *from)
{
(void) memset(to, 0, sizeof (*to));
to->idtype = from->idtype;
if (IS_ID_SID(*from)) {
idmap_retcode retcode;
to->idmap_id_u.sid.rid = from->idmap_id_u.sid.rid;
retcode = copy_string(&to->idmap_id_u.sid.prefix,
from->idmap_id_u.sid.prefix);
return (retcode);
} else {
to->idmap_id_u.uid = from->idmap_id_u.uid;
return (IDMAP_SUCCESS);
}
}
static
int
copy_mapping(idmap_mapping *mapping, idmap_mapping *request)
{
idmap_retcode retcode;
(void) memset(mapping, 0, sizeof (*mapping));
mapping->flag = request->flag;
mapping->direction = _IDMAP_F_DONE;
retcode = copy_id(&mapping->id1, &request->id1);
if (retcode != IDMAP_SUCCESS)
goto errout;
retcode = copy_string(&mapping->id1domain, request->id1domain);
if (retcode != IDMAP_SUCCESS)
goto errout;
retcode = copy_string(&mapping->id1name, request->id1name);
if (retcode != IDMAP_SUCCESS)
goto errout;
retcode = copy_id(&mapping->id2, &request->id2);
if (retcode != IDMAP_SUCCESS)
goto errout;
retcode = copy_string(&mapping->id2domain, request->id2domain);
if (retcode != IDMAP_SUCCESS)
goto errout;
retcode = copy_string(&mapping->id2name, request->id2name);
if (retcode != IDMAP_SUCCESS)
goto errout;
return (IDMAP_SUCCESS);
errout:
if (IS_ID_SID(mapping->id1))
free(mapping->id1.idmap_id_u.sid.prefix);
free(mapping->id1domain);
free(mapping->id1name);
if (IS_ID_SID(mapping->id2))
free(mapping->id2.idmap_id_u.sid.prefix);
free(mapping->id2domain);
free(mapping->id2name);
(void) memset(mapping, 0, sizeof (*mapping));
return (retcode);
}
/* ARGSUSED */
bool_t
idmap_get_mapped_id_by_name_1_svc(idmap_mapping request,
idmap_mappings_res *result, struct svc_req *rqstp)
{
idmap_mapping_batch batch_request;
idmap_ids_res batch_result;
idmap_mapping *map;
/* Clear out things we might want to xdr_free on error */
(void) memset(&batch_result, 0, sizeof (batch_result));
(void) memset(result, 0, sizeof (*result));
result->retcode = validate_mapped_id_by_name_req(&request);
if (result->retcode != IDMAP_SUCCESS)
goto out;
/*
* Copy the request. We need to modify it, and
* what we have is a shallow copy. Freeing pointers from
* our copy will lead to problems, since the RPC framework
* has its own copy of those pointers. Besides, we need
* a copy to return.
*/
map = calloc(1, sizeof (idmap_mapping));
if (map == NULL) {
idmapdlog(LOG_ERR, "Out of memory");
result->retcode = IDMAP_ERR_MEMORY;
goto out;
}
/*
* Set up to return the filled-in mapping structure.
* Note that we xdr_free result on error, and that'll take
* care of freeing the mapping structure.
*/
result->mappings.mappings_val = map;
result->mappings.mappings_len = 1;
result->retcode = copy_mapping(map, &request);
if (result->retcode != IDMAP_SUCCESS)
goto out;
/* Set up for the request to the batch API */
batch_request.idmap_mapping_batch_val = map;
batch_request.idmap_mapping_batch_len = 1;
/* Do the real work. */
(void) idmap_get_mapped_ids_1_svc(batch_request,
&batch_result, rqstp);
/* Copy what we need out of the batch response */
if (batch_result.retcode != IDMAP_SUCCESS) {
result->retcode = batch_result.retcode;
goto out;
}
result->retcode = copy_id(&map->id2, &batch_result.ids.ids_val[0].id);
if (result->retcode != IDMAP_SUCCESS)
goto out;
map->direction = batch_result.ids.ids_val[0].direction;
result->retcode = batch_result.ids.ids_val[0].retcode;
if (map->flag & IDMAP_REQ_FLG_MAPPING_INFO ||
result->retcode != IDMAP_SUCCESS) {
(void) idmap_info_mov(&map->info,
&batch_result.ids.ids_val[0].info);
}
out:
if (IDMAP_FATAL_ERROR(result->retcode)) {
xdr_free(xdr_idmap_mappings_res, (caddr_t)result);
result->mappings.mappings_len = 0;
result->mappings.mappings_val = NULL;
}
result->retcode = idmap_stat4prot(result->retcode);
xdr_free(xdr_idmap_ids_res, (char *)&batch_result);
return (TRUE);
}
/* ARGSUSED */
bool_t
idmap_get_prop_1_svc(idmap_prop_type request,
idmap_prop_res *result, struct svc_req *rqstp)
{
idmap_pg_config_t *pgcfg;
/* Init */
(void) memset(result, 0, sizeof (*result));
result->retcode = IDMAP_SUCCESS;
result->value.prop = request;
RDLOCK_CONFIG();
/* Just shortcuts: */
pgcfg = &_idmapdstate.cfg->pgcfg;
switch (request) {
case PROP_LIST_SIZE_LIMIT:
result->value.idmap_prop_val_u.intval = pgcfg->list_size_limit;
result->auto_discovered = FALSE;
break;
case PROP_DEFAULT_DOMAIN:
result->auto_discovered = FALSE;
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->default_domain);
break;
case PROP_DOMAIN_NAME:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->domain_name);
result->auto_discovered =
pgcfg->domain_name_auto_disc;
break;
case PROP_MACHINE_SID:
result->auto_discovered = FALSE;
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->machine_sid);
break;
case PROP_DOMAIN_CONTROLLER:
if (pgcfg->domain_controller != NULL) {
(void) memcpy(&result->value.idmap_prop_val_u.dsval,
pgcfg->domain_controller,
sizeof (idmap_ad_disc_ds_t));
}
result->auto_discovered = pgcfg->domain_controller_auto_disc;
break;
case PROP_FOREST_NAME:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->forest_name);
result->auto_discovered = pgcfg->forest_name_auto_disc;
break;
case PROP_SITE_NAME:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->site_name);
result->auto_discovered = pgcfg->site_name_auto_disc;
break;
case PROP_GLOBAL_CATALOG:
if (pgcfg->global_catalog != NULL) {
(void) memcpy(&result->value.idmap_prop_val_u.dsval,
pgcfg->global_catalog, sizeof (idmap_ad_disc_ds_t));
}
result->auto_discovered = pgcfg->global_catalog_auto_disc;
break;
case PROP_AD_UNIXUSER_ATTR:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->ad_unixuser_attr);
result->auto_discovered = FALSE;
break;
case PROP_AD_UNIXGROUP_ATTR:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->ad_unixgroup_attr);
result->auto_discovered = FALSE;
break;
case PROP_NLDAP_WINNAME_ATTR:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
pgcfg->nldap_winname_attr);
result->auto_discovered = FALSE;
break;
case PROP_DIRECTORY_BASED_MAPPING:
STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
enum_lookup(pgcfg->directory_based_mapping,
directory_mapping_map));
result->auto_discovered = FALSE;
break;
default:
result->retcode = IDMAP_ERR_PROP_UNKNOWN;
break;
}
out:
UNLOCK_CONFIG();
if (IDMAP_FATAL_ERROR(result->retcode)) {
xdr_free(xdr_idmap_prop_res, (caddr_t)result);
result->value.prop = PROP_UNKNOWN;
}
result->retcode = idmap_stat4prot(result->retcode);
return (TRUE);
}
/* ARGSUSED */
int
idmap_prog_1_freeresult(SVCXPRT *transp, xdrproc_t xdr_result,
caddr_t result)
{
(void) xdr_free(xdr_result, result);
return (TRUE);
}
/*
* This function is called by rpc_svc.c when it encounters an error.
*/
NOTE(PRINTFLIKE(1))
void
idmap_rpc_msgout(const char *fmt, ...)
{
va_list va;
char buf[1000];
va_start(va, fmt);
(void) vsnprintf(buf, sizeof (buf), fmt, va);
va_end(va);
idmapdlog(LOG_ERR, "idmap RPC: %s", buf);
}