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Stash pointer to user group vector in LDAP handle and only reuse

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the query if it has not changed.  We always allocate a new buffer
when we reset the group vector so a simple pointer check is sufficient.
This commit is contained in:
Todd C. Miller
2011-01-20 16:16:08 -05:00
parent 165dcfa37f
commit 215500bb55
1 changed files with 6 additions and 2 deletions
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8
plugins/sudoers/ldap.c
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@@ -326,6 +326,7 @@ struct sudo_ldap_handle {
LDAP *ld;
struct ldap_result *result;
char *username;
GETGROUPS_T *groups;
};
struct sudo_nss sudo_nss_ldap = {
@@ -1467,7 +1468,6 @@ sudo_ldap_display_entry_short(LDAP *ld, LDAPMessage *entry, struct lbuf *lbuf)
"NOSETENV: " : "SETENV: ";
if (tag != NULL)
lbuf_append(lbuf, tag, NULL);
/* XXX - ignores other options */
}
ldap_value_free_len(bv);
}
@@ -1991,6 +1991,7 @@ sudo_ldap_open(struct sudo_nss *nss)
handle->ld = ld;
handle->result = NULL;
handle->username = NULL;
handle->groups = NULL;
nss->handle = handle;
return(0);
@@ -2244,6 +2245,7 @@ sudo_ldap_result_free_nss(struct sudo_nss *nss)
efree(handle->username);
handle->username = NULL;
}
handle->groups = NULL;
handle->result = NULL;
}
}
@@ -2269,7 +2271,8 @@ sudo_ldap_result_get(struct sudo_nss *nss, struct passwd *pw)
* have to contact the LDAP server again.
*/
if (handle->result) {
if (strcmp(pw->pw_name, handle->username) == 0) {
if (handle->groups == user_groups &&
strcmp(pw->pw_name, handle->username) == 0) {
DPRINTF(("reusing previous result (user %s) with %d entries",
handle->username, handle->result->nentries), 1);
return(handle->result);
@@ -2342,6 +2345,7 @@ sudo_ldap_result_get(struct sudo_nss *nss, struct passwd *pw)
/* Store everything in the sudo_nss handle. */
handle->result = lres;
handle->username = estrdup(pw->pw_name);
handle->groups = user_groups;
return(lres);
}