diff options
Diffstat (limited to 'nsswitch/nsstest.c')
| -rw-r--r-- | nsswitch/nsstest.c | 500 |
1 files changed, 500 insertions, 0 deletions
diff --git a/nsswitch/nsstest.c b/nsswitch/nsstest.c new file mode 100644 index 0000000..45270cd --- /dev/null +++ b/nsswitch/nsstest.c @@ -0,0 +1,500 @@ +/* + Unix SMB/CIFS implementation. + nss tester for winbindd + Copyright (C) Andrew Tridgell 2001 + Copyright (C) Tim Potter 2003 + + 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 <http://www.gnu.org/licenses/>. +*/ + +#include "replace.h" +#include "nsswitch/nsstest.h" + +#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); (x)=NULL;} } while(0) + +static const char *so_path = "/lib/libnss_winbind.so"; +static const char *nss_name = "winbind"; +static int nss_errno; +static NSS_STATUS last_error; +static int total_errors; + +static void *find_fn(const char *name) +{ + char *s; + static void *h; + void *res; + + if (asprintf(&s, "_nss_%s_%s", nss_name, name) < 0) { + exit(1); + } + + if (!h) { + h = dlopen(so_path, RTLD_LAZY); + } + if (!h) { + printf("Can't open shared library %s\n", so_path); + exit(1); + } + res = dlsym(h, s); + if (!res) { + printf("Can't find function %s\n", s); + total_errors++; + SAFE_FREE(s); + return NULL; + } + SAFE_FREE(s); + return res; +} + +static void report_nss_error(const char *who, NSS_STATUS status) +{ + last_error = status; + total_errors++; + printf("ERROR %s: NSS_STATUS=%d %d (nss_errno=%d)\n", + who, status, NSS_STATUS_SUCCESS, nss_errno); +} + +static struct passwd *nss_getpwent(void) +{ + NSS_STATUS (*_nss_getpwent_r)(struct passwd *, char *, + size_t , int *) = + (NSS_STATUS (*)(struct passwd *, char *, + size_t, int *))find_fn("getpwent_r"); + static struct passwd pwd; + static char buf[1000]; + NSS_STATUS status; + + if (!_nss_getpwent_r) + return NULL; + + status = _nss_getpwent_r(&pwd, buf, sizeof(buf), &nss_errno); + if (status == NSS_STATUS_NOTFOUND) { + return NULL; + } + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("getpwent", status); + return NULL; + } + return &pwd; +} + +static struct passwd *nss_getpwnam(const char *name) +{ + NSS_STATUS (*_nss_getpwnam_r)(const char *, struct passwd *, char *, + size_t , int *) = + (NSS_STATUS (*)(const char *, struct passwd *, char *, + size_t, int *))find_fn("getpwnam_r"); + static struct passwd pwd; + static char buf[1000]; + NSS_STATUS status; + + if (!_nss_getpwnam_r) + return NULL; + + status = _nss_getpwnam_r(name, &pwd, buf, sizeof(buf), &nss_errno); + if (status == NSS_STATUS_NOTFOUND) { + return NULL; + } + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("getpwnam", status); + return NULL; + } + return &pwd; +} + +static struct passwd *nss_getpwuid(uid_t uid) +{ + NSS_STATUS (*_nss_getpwuid_r)(uid_t , struct passwd *, char *, + size_t , int *) = + (NSS_STATUS (*)(uid_t, struct passwd *, char *, + size_t, int *))find_fn("getpwuid_r"); + static struct passwd pwd; + static char buf[1000]; + NSS_STATUS status; + + if (!_nss_getpwuid_r) + return NULL; + + status = _nss_getpwuid_r(uid, &pwd, buf, sizeof(buf), &nss_errno); + if (status == NSS_STATUS_NOTFOUND) { + return NULL; + } + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("getpwuid", status); + return NULL; + } + return &pwd; +} + +static void samba_nss_setpwent(void) +{ + NSS_STATUS (*_nss_setpwent)(void) = + (NSS_STATUS(*)(void))find_fn("setpwent"); + NSS_STATUS status; + + if (!_nss_setpwent) + return; + + status = _nss_setpwent(); + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("setpwent", status); + } +} + +static void samba_nss_endpwent(void) +{ + NSS_STATUS (*_nss_endpwent)(void) = + (NSS_STATUS (*)(void))find_fn("endpwent"); + NSS_STATUS status; + + if (!_nss_endpwent) + return; + + status = _nss_endpwent(); + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("endpwent", status); + } +} + + +static struct group *nss_getgrent(void) +{ + NSS_STATUS (*_nss_getgrent_r)(struct group *, char *, + size_t , int *) = + (NSS_STATUS (*)(struct group *, char *, + size_t, int *))find_fn("getgrent_r"); + static struct group grp; + static char *buf; + static int buflen = 1024; + NSS_STATUS status; + + if (!_nss_getgrent_r) + return NULL; + + if (!buf) + buf = (char *)malloc(buflen); + +again: + status = _nss_getgrent_r(&grp, buf, buflen, &nss_errno); + if (status == NSS_STATUS_TRYAGAIN) { + char *oldbuf = buf; + buflen *= 2; + buf = (char *)realloc(buf, buflen); + if (!buf) { + SAFE_FREE(oldbuf); + return NULL; + } + goto again; + } + if (status == NSS_STATUS_NOTFOUND) { + SAFE_FREE(buf); + return NULL; + } + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("getgrent", status); + SAFE_FREE(buf); + return NULL; + } + return &grp; +} + +static struct group *nss_getgrnam(const char *name) +{ + NSS_STATUS (*_nss_getgrnam_r)(const char *, struct group *, char *, + size_t , int *) = + (NSS_STATUS (*)(const char *, struct group *, char *, + size_t, int *))find_fn("getgrnam_r"); + static struct group grp; + static char *buf; + static int buflen = 1000; + NSS_STATUS status; + + if (!_nss_getgrnam_r) + return NULL; + + if (!buf) + buf = (char *)malloc(buflen); +again: + status = _nss_getgrnam_r(name, &grp, buf, buflen, &nss_errno); + if (status == NSS_STATUS_TRYAGAIN) { + char *oldbuf = buf; + buflen *= 2; + buf = (char *)realloc(buf, buflen); + if (!buf) { + SAFE_FREE(oldbuf); + return NULL; + } + goto again; + } + if (status == NSS_STATUS_NOTFOUND) { + SAFE_FREE(buf); + return NULL; + } + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("getgrnam", status); + SAFE_FREE(buf); + return NULL; + } + return &grp; +} + +static struct group *nss_getgrgid(gid_t gid) +{ + NSS_STATUS (*_nss_getgrgid_r)(gid_t , struct group *, char *, + size_t , int *) = + (NSS_STATUS (*)(gid_t, struct group *, char *, + size_t, int *))find_fn("getgrgid_r"); + static struct group grp; + static char *buf; + static int buflen = 1000; + NSS_STATUS status; + + if (!_nss_getgrgid_r) + return NULL; + + if (!buf) + buf = (char *)malloc(buflen); + +again: + status = _nss_getgrgid_r(gid, &grp, buf, buflen, &nss_errno); + if (status == NSS_STATUS_TRYAGAIN) { + char *oldbuf = buf; + buflen *= 2; + buf = (char *)realloc(buf, buflen); + if (!buf) { + SAFE_FREE(oldbuf); + return NULL; + } + goto again; + } + if (status == NSS_STATUS_NOTFOUND) { + SAFE_FREE(buf); + return NULL; + } + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("getgrgid", status); + SAFE_FREE(buf); + return NULL; + } + return &grp; +} + +static void samba_nss_setgrent(void) +{ + NSS_STATUS (*_nss_setgrent)(void) = + (NSS_STATUS (*)(void))find_fn("setgrent"); + NSS_STATUS status; + + if (!_nss_setgrent) + return; + + status = _nss_setgrent(); + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("setgrent", status); + } +} + +static void samba_nss_endgrent(void) +{ + NSS_STATUS (*_nss_endgrent)(void) = + (NSS_STATUS (*)(void))find_fn("endgrent"); + NSS_STATUS status; + + if (!_nss_endgrent) + return; + + status = _nss_endgrent(); + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("endgrent", status); + } +} + +static int nss_initgroups(char *user, gid_t group, gid_t **groups, long int *start, long int *size) +{ + NSS_STATUS (*_nss_initgroups)(char *, gid_t , long int *, + long int *, gid_t **, long int , int *) = + (NSS_STATUS (*)(char *, gid_t, long int *, + long int *, gid_t **, + long int, int *))find_fn("initgroups_dyn"); + NSS_STATUS status; + + if (!_nss_initgroups) + return NSS_STATUS_UNAVAIL; + + status = _nss_initgroups(user, group, start, size, groups, 0, &nss_errno); + if (status != NSS_STATUS_SUCCESS) { + report_nss_error("initgroups", status); + } + return status; +} + +static void print_passwd(struct passwd *pwd) +{ + printf("%s:%s:%lu:%lu:%s:%s:%s\n", + pwd->pw_name, + pwd->pw_passwd, + (unsigned long)pwd->pw_uid, + (unsigned long)pwd->pw_gid, + pwd->pw_gecos, + pwd->pw_dir, + pwd->pw_shell); +} + +static void print_group(struct group *grp) +{ + int i; + printf("%s:%s:%lu:", + grp->gr_name, + grp->gr_passwd, + (unsigned long)grp->gr_gid); + + if (!grp->gr_mem[0]) { + printf("\n"); + return; + } + + for (i=0; grp->gr_mem[i+1]; i++) { + printf("%s,", grp->gr_mem[i]); + } + printf("%s\n", grp->gr_mem[i]); +} + +static void nss_test_initgroups(char *name, gid_t gid) +{ + long int size = 16; + long int start = 1; + gid_t *groups = NULL; + int i; + NSS_STATUS status; + + groups = (gid_t *)malloc(sizeof(gid_t) * size); + if (groups == NULL) { + printf("Unable to allocate memory for groups\n"); + return; + } + groups[0] = gid; + + status = nss_initgroups(name, gid, &groups, &start, &size); + if (status == NSS_STATUS_UNAVAIL) { + printf("No initgroups fn\n"); + return; + } + + for (i=0; i<start-1; i++) { + printf("%lu, ", (unsigned long)groups[i]); + } + printf("%lu\n", (unsigned long)groups[i]); +} + + +static void nss_test_users(void) +{ + struct passwd *pwd; + + samba_nss_setpwent(); + /* loop over all users */ + while ((pwd = nss_getpwent())) { + printf("Testing user %s\n", pwd->pw_name); + printf("getpwent: "); print_passwd(pwd); + pwd = nss_getpwuid(pwd->pw_uid); + if (!pwd) { + total_errors++; + printf("ERROR: can't getpwuid\n"); + continue; + } + printf("getpwuid: "); print_passwd(pwd); + pwd = nss_getpwnam(pwd->pw_name); + if (!pwd) { + total_errors++; + printf("ERROR: can't getpwnam\n"); + continue; + } + printf("getpwnam: "); print_passwd(pwd); + printf("initgroups: "); nss_test_initgroups(pwd->pw_name, pwd->pw_gid); + printf("\n"); + } + samba_nss_endpwent(); +} + +static void nss_test_groups(void) +{ + struct group *grp; + + samba_nss_setgrent(); + /* loop over all groups */ + while ((grp = nss_getgrent())) { + printf("Testing group %s\n", grp->gr_name); + printf("getgrent: "); print_group(grp); + grp = nss_getgrnam(grp->gr_name); + if (!grp) { + total_errors++; + printf("ERROR: can't getgrnam\n"); + continue; + } + printf("getgrnam: "); print_group(grp); + grp = nss_getgrgid(grp->gr_gid); + if (!grp) { + total_errors++; + printf("ERROR: can't getgrgid\n"); + continue; + } + printf("getgrgid: "); print_group(grp); + printf("\n"); + } + samba_nss_endgrent(); +} + +static void nss_test_errors(void) +{ + struct passwd *pwd; + struct group *grp; + + pwd = getpwnam("nosuchname"); + if (pwd || last_error != NSS_STATUS_NOTFOUND) { + total_errors++; + printf("ERROR Non existent user gave error %d\n", last_error); + } + + pwd = getpwuid(0xFF00); + if (pwd || last_error != NSS_STATUS_NOTFOUND) { + total_errors++; + printf("ERROR Non existent uid gave error %d\n", last_error); + } + + grp = getgrnam("nosuchgroup"); + if (grp || last_error != NSS_STATUS_NOTFOUND) { + total_errors++; + printf("ERROR Non existent group gave error %d\n", last_error); + } + + grp = getgrgid(0xFFF0); + if (grp || last_error != NSS_STATUS_NOTFOUND) { + total_errors++; + printf("ERROR Non existent gid gave error %d\n", last_error); + } +} + + int main(int argc, char *argv[]) +{ + if (argc > 1) so_path = argv[1]; + if (argc > 2) nss_name = argv[2]; + + nss_test_users(); + nss_test_groups(); + nss_test_errors(); + + printf("total_errors=%d\n", total_errors); + + return total_errors; +} |