#include <string.h>
#include <errno.h>
#include <inttypes.h>
+#include <sys/types.h>
+#include <pwd.h>
+#include <grp.h>
+#include <arpa/inet.h>
#include <atalk/logger.h>
#include <atalk/afp.h>
#include "aclldap.h"
#include "cache.h"
-char *uuidtype[] = {"NULL","USER", "GROUP", "LOCAL"};
+char *uuidtype[] = {"USER", "GROUP", "LOCAL"};
/********************************************************
* Public helper function
********************************************************/
-/*
+static unsigned char local_group_uuid[] = {0xab, 0xcd, 0xef,
+ 0xab, 0xcd, 0xef,
+ 0xab, 0xcd, 0xef,
+ 0xab, 0xcd, 0xef};
+
+static unsigned char local_user_uuid[] = {0xff, 0xff, 0xee, 0xee, 0xdd, 0xdd,
+ 0xcc, 0xcc, 0xbb, 0xbb, 0xaa, 0xaa};
+
+void localuuid_from_id(unsigned char *buf, uuidtype_t type, unsigned int id)
+{
+ uint32_t tmp;
+
+ switch (type) {
+ case UUID_GROUP:
+ memcpy(buf, local_group_uuid, 12);
+ break;
+ case UUID_USER:
+ default:
+ memcpy(buf, local_user_uuid, 12);
+ break;
+ }
+
+ tmp = htonl(id);
+ memcpy(buf + 12, &tmp, 4);
+
+ return;
+}
+
+/*
* convert ascii string that can include dashes to binary uuid.
* caller must provide a buffer.
*/
-void uuid_string2bin( const char *uuidstring, uuidp_t uuid) {
+void uuid_string2bin( const char *uuidstring, unsigned char *uuid) {
int nibble = 1;
int i = 0;
unsigned char c, val = 0;
}
-/*!
+/*!
* Convert 16 byte binary uuid to neat ascii represantation including dashes.
- *
+ *
* Returns pointer to static buffer.
*/
-const char *uuid_bin2string(char *uuid) {
+const char *uuid_bin2string(const unsigned char *uuid) {
static char uuidstring[UUID_STRINGSIZE + 1];
- char ascii[16] = { "0123456789ABCDEF" };
- int nibble = 1;
+
int i = 0;
- int c;
-
+ unsigned char c;
+
while (i < UUID_STRINGSIZE) {
c = *uuid;
- if (nibble)
- c = c >> 4;
- else {
- c &= 0x0f;
- uuid++;
- }
- uuidstring[i] = ascii[c];
- nibble ^= 1;
- i++;
+ uuid++;
+ sprintf(uuidstring + i, "%02X", c);
+ i += 2;
if (i==8 || i==13 || i==18 || i==23)
uuidstring[i++] = '-';
}
* type: and type (UUID_USER or UUID_GROUP)
* uuid: pointer to uuid_t storage that the caller must provide
* returns 0 on success !=0 on errror
- */
-int getuuidfromname( const char *name, uuidtype_t type, uuidp_t uuid) {
+ */
+int getuuidfromname( const char *name, uuidtype_t type, unsigned char *uuid) {
int ret = 0;
+ uuidtype_t mytype = type;
+ char nulluuid[16] = {0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0};
+#ifdef HAVE_LDAP
char *uuid_string = NULL;
+#endif
+
+ ret = search_cachebyname(name, &mytype, uuid);
- ret = search_cachebyname( name, type, uuid);
if (ret == 0) {
/* found in cache */
- LOG(log_debug, logtype_afpd, "getuuidfromname{cache}: name: %s, type: %s -> UUID: %s",
- name, uuidtype[type], uuid_bin2string(uuid));
+ LOG(log_debug, logtype_afpd,
+ "getuuidfromname{cache}: name: %s, type%s: %s -> UUID: %s",
+ name,
+ (mytype & UUID_ENOENT) == UUID_ENOENT ? "[negative]" : "",
+ uuidtype[type & UUIDTYPESTR_MASK],
+ uuid_bin2string(uuid));
+ if ((mytype & UUID_ENOENT) == UUID_ENOENT)
+ return -1;
} else {
/* if not found in cache */
- ret = ldap_getuuidfromname( name, type, &uuid_string);
- if (ret != 0) {
- LOG(log_note, logtype_afpd, "getuuidfromname(\"%s\",t:%u): no result from ldap search",
+#ifdef HAVE_LDAP
+ if ((ret = ldap_getuuidfromname( name, type, &uuid_string)) == 0) {
+ uuid_string2bin( uuid_string, uuid);
+ LOG(log_debug, logtype_afpd, "getuuidfromname{LDAP}: name: %s, type: %s -> UUID: %s",
+ name, uuidtype[type & UUIDTYPESTR_MASK], uuid_bin2string(uuid));
+ } else {
+ LOG(log_debug, logtype_afpd, "getuuidfromname(\"%s\",t:%u): no result from ldap search",
name, type);
- goto cleanup;
}
- uuid_string2bin( uuid_string, uuid);
- add_cachebyname( name, uuid, type, 0);
- LOG(log_debug, logtype_afpd, "getuuidfromname{LDAP}: name: %s, type: %s -> UUID: %s",name, uuidtype[type], uuid_string);
+#endif
+ if (ret != 0) {
+ /* Build a local UUID */
+ if (type == UUID_USER) {
+ struct passwd *pwd;
+ if ((pwd = getpwnam(name)) == NULL) {
+ LOG(log_error, logtype_afpd, "getuuidfromname(\"%s\",t:%u): unknown user",
+ name, uuidtype[type & UUIDTYPESTR_MASK]);
+ mytype |= UUID_ENOENT;
+ memcpy(uuid, nulluuid, 16);
+ } else {
+ localuuid_from_id(uuid, UUID_USER, pwd->pw_uid);
+ ret = 0;
+ LOG(log_debug, logtype_afpd, "getuuidfromname{local}: name: %s, type: %s -> UUID: %s",
+ name, uuidtype[type & UUIDTYPESTR_MASK], uuid_bin2string(uuid));
+ }
+ } else {
+ struct group *grp;
+ if ((grp = getgrnam(name)) == NULL) {
+ LOG(log_error, logtype_afpd, "getuuidfromname(\"%s\",t:%u): unknown user",
+ name, uuidtype[type & UUIDTYPESTR_MASK]);
+ mytype |= UUID_ENOENT;
+ memcpy(uuid, nulluuid, 16);
+ } else {
+ localuuid_from_id(uuid, UUID_GROUP, grp->gr_gid);
+ ret = 0;
+ LOG(log_debug, logtype_afpd, "getuuidfromname{local}: name: %s, type: %s -> UUID: %s",
+ name, uuidtype[type & UUIDTYPESTR_MASK], uuid_bin2string(uuid));
+ }
+ }
+ }
+ add_cachebyname(name, uuid, mytype, 0);
}
cleanup:
+#ifdef HAVE_LDAP
if (uuid_string) free(uuid_string);
+#endif
return ret;
}
-static char local_group_uuid[] = {0xab, 0xcd, 0xef,
- 0xab, 0xcd, 0xef,
- 0xab, 0xcd, 0xef,
- 0xab, 0xcd, 0xef};
-
-static char local_user_uuid[] = {0xff, 0xff, 0xee, 0xee, 0xdd, 0xdd,
- 0xcc, 0xcc, 0xbb, 0xbb, 0xaa, 0xaa};
/*
* uuidp: pointer to a uuid
* Caller must free name appropiately.
*/
int getnamefromuuid(const uuidp_t uuidp, char **name, uuidtype_t *type) {
- int ret;
+ int ret = 0;
+ uid_t uid;
+ gid_t gid;
+ struct passwd *pwd;
+ struct group *grp;
- ret = search_cachebyuuid( uuidp, name, type);
- if (ret == 0) {
+ if (search_cachebyuuid(uuidp, name, type) == 0) {
/* found in cache */
- LOG(log_debug9, logtype_afpd, "getnamefromuuid{cache}: UUID: %s -> name: %s, type:%s",
- uuid_bin2string(uuidp), *name, uuidtype[*type]);
- } else {
- /* not found in cache */
-
- /* Check if UUID is a client local one */
- if (memcmp(uuidp, local_user_uuid, 12) == 0
- || memcmp(uuidp, local_group_uuid, 12) == 0) {
- LOG(log_debug, logtype_afpd, "getnamefromuuid: local UUID: %" PRIu32 "",
- ntohl(*(uint32_t *)(uuidp + 12)));
- *type = UUID_LOCAL;
- *name = strdup("UUID_LOCAL");
- return 0;
- }
+ LOG(log_debug, logtype_afpd,
+ "getnamefromuuid{cache}: UUID: %s -> name: %s, type%s: %s",
+ uuid_bin2string(uuidp),
+ *name,
+ (*type & UUID_ENOENT) == UUID_ENOENT ? "[negative]" : "",
+ uuidtype[(*type) & UUIDTYPESTR_MASK]);
+ if ((*type & UUID_ENOENT) == UUID_ENOENT)
+ return -1;
+ return 0;
+ }
- ret = ldap_getnamefromuuid(uuid_bin2string(uuidp), name, type);
- if (ret != 0) {
- LOG(log_warning, logtype_afpd, "getnamefromuuid(%s): no result from ldap_getnamefromuuid",
- uuid_bin2string(uuidp));
- goto cleanup;
+ /* not found in cache */
+
+ /* Check if UUID is a client local one */
+ if (memcmp(uuidp, local_user_uuid, 12) == 0) {
+ *type = UUID_USER;
+ uid = ntohl(*(uint32_t *)(uuidp + 12));
+ if ((pwd = getpwuid(uid)) == NULL) {
+ /* not found, add negative entry to cache */
+ add_cachebyuuid(uuidp, "UUID_ENOENT", UUID_ENOENT, 0);
+ ret = -1;
+ } else {
+ *name = strdup(pwd->pw_name);
+ add_cachebyuuid(uuidp, *name, *type, 0);
+ ret = 0;
+ }
+ LOG(log_debug, logtype_afpd,
+ "getnamefromuuid{local}: UUID: %s -> name: %s, type:%s",
+ uuid_bin2string(uuidp), *name, uuidtype[(*type) & UUIDTYPESTR_MASK]);
+ return ret;
+ } else if (memcmp(uuidp, local_group_uuid, 12) == 0) {
+ *type = UUID_GROUP;
+ gid = ntohl(*(uint32_t *)(uuidp + 12));
+ if ((grp = getgrgid(gid)) == NULL) {
+ /* not found, add negative entry to cache */
+ add_cachebyuuid(uuidp, "UUID_ENOENT", UUID_ENOENT, 0);
+ ret = -1;
+ } else {
+ *name = strdup(grp->gr_name);
+ add_cachebyuuid(uuidp, *name, *type, 0);
+ ret = 0;
}
- add_cachebyuuid( uuidp, *name, *type, 0);
- LOG(log_debug, logtype_afpd, "getnamefromuuid{LDAP}: UUID: %s -> name: %s, type:%s",
- uuid_bin2string(uuidp), *name, uuidtype[*type]);
+ return ret;
}
-cleanup:
- return ret;
+#ifdef HAVE_LDAP
+ ret = ldap_getnamefromuuid(uuid_bin2string(uuidp), name, type);
+ if (ret != 0) {
+ LOG(log_warning, logtype_afpd, "getnamefromuuid(%s): no result from ldap_getnamefromuuid",
+ uuid_bin2string(uuidp));
+ add_cachebyuuid(uuidp, "UUID_ENOENT", UUID_ENOENT, 0);
+ return -1;
+ }
+#endif
+
+ add_cachebyuuid(uuidp, *name, *type, 0);
+
+ LOG(log_debug, logtype_afpd, "getnamefromuuid{LDAP}: UUID: %s -> name: %s, type:%s",
+ uuid_bin2string(uuidp), *name, uuidtype[(*type) & UUIDTYPESTR_MASK]);
+
+ return 0;
}
projects / netatalk.git / blobdiff