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authorPavel Březina <pbrezina@redhat.com>2012-06-27 10:32:25 +0200
committerStephen Gallagher <sgallagh@redhat.com>2012-06-29 11:37:18 -0400
commit1bb62d67c6d54a8ebd111ca08344f2d17b1f6f52 (patch)
tree70f66f9217139c992d88f2614512f1a08f89458c /src
parent96549c5e03047c4f21cb7ea8c01f8ff8bcc91cd8 (diff)
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sudo ldap provider: do per-host updates
Add host information to LDAP filters.
Diffstat (limited to 'src')
-rw-r--r--src/providers/ldap/sdap_sudo.c163
1 files changed, 160 insertions, 3 deletions
diff --git a/src/providers/ldap/sdap_sudo.c b/src/providers/ldap/sdap_sudo.c
index c3c951929..1d33b5dc4 100644
--- a/src/providers/ldap/sdap_sudo.c
+++ b/src/providers/ldap/sdap_sudo.c
@@ -300,6 +300,139 @@ static void sdap_sudo_set_usn(struct sdap_server_opts *srv_opts, char *usn)
}
}
+static char *sdap_sudo_build_host_filter(TALLOC_CTX *mem_ctx,
+ struct sdap_attr_map *map,
+ char **hostnames,
+ char **ip_addr,
+ bool netgroups,
+ bool regexp)
+{
+ TALLOC_CTX *tmp_ctx = NULL;
+ char *filter = NULL;
+ int i;
+
+ tmp_ctx = talloc_new(NULL);
+ if (tmp_ctx == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
+ return NULL;
+ }
+
+ filter = talloc_strdup(tmp_ctx, "(|");
+ if (filter == NULL) {
+ goto done;
+ }
+
+ /* ALL */
+ filter = talloc_asprintf_append_buffer(filter, "(%s=ALL)",
+ map[SDAP_AT_SUDO_HOST].name);
+ if (filter == NULL) {
+ goto done;
+ }
+
+ /* hostnames */
+ if (hostnames != NULL) {
+ for (i = 0; hostnames[i] != NULL; i++) {
+ filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
+ map[SDAP_AT_SUDO_HOST].name,
+ hostnames[i]);
+ if (filter == NULL) {
+ goto done;
+ }
+ }
+ }
+
+ /* ip addresses and networks */
+ if (ip_addr != NULL) {
+ for (i = 0; ip_addr[i] != NULL; i++) {
+ filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
+ map[SDAP_AT_SUDO_HOST].name,
+ ip_addr[i]);
+ if (filter == NULL) {
+ goto done;
+ }
+ }
+ }
+
+ /* sudoHost contains netgroup - will be filtered more by sudo */
+ if (netgroups) {
+ filter = talloc_asprintf_append_buffer(filter, SDAP_SUDO_FILTER_NETGROUP,
+ map[SDAP_AT_SUDO_HOST].name,
+ "*");
+ if (filter == NULL) {
+ goto done;
+ }
+ }
+
+ /* sudoHost contains regexp - will be filtered more by sudo */
+ /* from sudo match.c :
+ * #define has_meta(s) (strpbrk(s, "\\?*[]") != NULL)
+ */
+ if (regexp) {
+ filter = talloc_asprintf_append_buffer(filter,
+ "(|(%s=*\\\\*)(%s=*?*)(%s=*\\**)"
+ "(%s=*[*]*))",
+ map[SDAP_AT_SUDO_HOST].name,
+ map[SDAP_AT_SUDO_HOST].name,
+ map[SDAP_AT_SUDO_HOST].name,
+ map[SDAP_AT_SUDO_HOST].name);
+ if (filter == NULL) {
+ goto done;
+ }
+ }
+
+ filter = talloc_strdup_append_buffer(filter, ")");
+ if (filter == NULL) {
+ goto done;
+ }
+
+ talloc_steal(mem_ctx, filter);
+
+done:
+ talloc_free(tmp_ctx);
+
+ return filter;
+}
+
+static char *sdap_sudo_get_filter(TALLOC_CTX *mem_ctx,
+ struct sdap_attr_map *map,
+ struct sdap_sudo_ctx *sudo_ctx,
+ const char *rule_filter)
+{
+ TALLOC_CTX *tmp_ctx = NULL;
+ char *host_filter = NULL;
+ char *filter = NULL;
+
+ if (!sudo_ctx->use_host_filter) {
+ return talloc_strdup(mem_ctx, filter);
+ }
+
+ tmp_ctx = talloc_new(NULL);
+ if (tmp_ctx == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
+ return NULL;
+ }
+
+ host_filter = sdap_sudo_build_host_filter(tmp_ctx, map,
+ sudo_ctx->hostnames,
+ sudo_ctx->ip_addr,
+ sudo_ctx->include_netgroups,
+ sudo_ctx->include_regexp);
+ if (host_filter == NULL) {
+ goto done;
+ }
+
+ filter = sdap_get_id_specific_filter(tmp_ctx, rule_filter, host_filter);
+ if (filter == NULL) {
+ goto done;
+ }
+
+ talloc_steal(mem_ctx, filter);
+
+done:
+ talloc_free(tmp_ctx);
+ return filter;
+}
+
static void sdap_sudo_reply(struct tevent_req *req)
{
struct be_req *be_req = NULL;
@@ -389,6 +522,7 @@ static struct tevent_req *sdap_sudo_full_refresh_send(TALLOC_CTX *mem_ctx,
struct sdap_id_ctx *id_ctx = sudo_ctx->id_ctx;
struct sdap_sudo_full_refresh_state *state = NULL;
char *ldap_filter = NULL;
+ char *ldap_full_filter = NULL;
char *sysdb_filter = NULL;
int ret;
@@ -409,6 +543,13 @@ static struct tevent_req *sdap_sudo_full_refresh_send(TALLOC_CTX *mem_ctx,
goto immediately;
}
+ ldap_full_filter = sdap_sudo_get_filter(state, id_ctx->opts->sudorule_map,
+ sudo_ctx, ldap_filter);
+ if (ldap_full_filter == NULL) {
+ ret = ENOMEM;
+ goto immediately;
+ }
+
/* Remove all rules from cache */
sysdb_filter = talloc_asprintf(state, "(%s=%s)",
SYSDB_OBJECTCLASS, SYSDB_SUDO_CACHE_AT_OC);
@@ -421,7 +562,7 @@ static struct tevent_req *sdap_sudo_full_refresh_send(TALLOC_CTX *mem_ctx,
subreq = sdap_sudo_refresh_send(state, id_ctx->be, id_ctx->opts,
id_ctx->conn_cache,
- ldap_filter, sysdb_filter);
+ ldap_full_filter, sysdb_filter);
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
@@ -431,6 +572,7 @@ static struct tevent_req *sdap_sudo_full_refresh_send(TALLOC_CTX *mem_ctx,
/* free filters */
talloc_free(ldap_filter);
+ talloc_free(ldap_full_filter);
talloc_free(sysdb_filter);
return req;
@@ -512,6 +654,7 @@ static struct tevent_req *sdap_sudo_rules_refresh_send(TALLOC_CTX *mem_ctx,
struct sdap_sudo_rules_refresh_state *state = NULL;
TALLOC_CTX *tmp_ctx = NULL;
char *ldap_filter = NULL;
+ char *ldap_full_filter = NULL;
char *sysdb_filter = NULL;
char *safe_rule = NULL;
int ret;
@@ -573,6 +716,13 @@ static struct tevent_req *sdap_sudo_rules_refresh_send(TALLOC_CTX *mem_ctx,
goto immediately;
}
+ ldap_full_filter = sdap_sudo_get_filter(tmp_ctx, opts->sudorule_map,
+ sudo_ctx, ldap_filter);
+ if (ldap_full_filter == NULL) {
+ ret = ENOMEM;
+ goto immediately;
+ }
+
sysdb_filter = talloc_asprintf(tmp_ctx, "(&(%s=%s)(|%s))",
SYSDB_OBJECTCLASS, SYSDB_SUDO_CACHE_AT_OC,
sysdb_filter);
@@ -582,7 +732,7 @@ static struct tevent_req *sdap_sudo_rules_refresh_send(TALLOC_CTX *mem_ctx,
}
subreq = sdap_sudo_refresh_send(req, be_ctx, opts, conn_cache,
- ldap_filter, sysdb_filter);
+ ldap_full_filter, sysdb_filter);
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
@@ -658,6 +808,7 @@ static struct tevent_req *sdap_sudo_smart_refresh_send(TALLOC_CTX *mem_ctx,
struct sdap_server_opts *srv_opts = id_ctx->srv_opts;
struct sdap_sudo_smart_refresh_state *state = NULL;
char *ldap_filter = NULL;
+ char *ldap_full_filter = NULL;
int ret;
req = tevent_req_create(mem_ctx, &state, struct sdap_sudo_smart_refresh_state);
@@ -688,6 +839,11 @@ static struct tevent_req *sdap_sudo_smart_refresh_send(TALLOC_CTX *mem_ctx,
goto immediately;
}
+ ldap_full_filter = sdap_sudo_get_filter(state, map, sudo_ctx, ldap_filter);
+ if (ldap_full_filter == NULL) {
+ goto immediately;
+ }
+
/* Do not remove any rules that are already in the sysdb
* sysdb_filter = NULL; */
@@ -696,7 +852,7 @@ static struct tevent_req *sdap_sudo_smart_refresh_send(TALLOC_CTX *mem_ctx,
subreq = sdap_sudo_refresh_send(state, id_ctx->be, id_ctx->opts,
id_ctx->conn_cache,
- ldap_filter, NULL);
+ ldap_full_filter, NULL);
if (subreq == NULL) {
ret = ENOMEM;
goto immediately;
@@ -707,6 +863,7 @@ static struct tevent_req *sdap_sudo_smart_refresh_send(TALLOC_CTX *mem_ctx,
/* free filters */
talloc_free(ldap_filter);
+ talloc_free(ldap_full_filter);
return req;