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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
memset(prompts[0].reply->data, '\0', prompts[0].reply->length);
if (prompts[0].reply->length > 0) {
if (data) {
- strncpy(prompts[0].reply->data, data, prompts[0].reply->length-1);
+ strncpy(prompts[0].reply->data, (const char *)data,
+ prompts[0].reply->length-1);
prompts[0].reply->length = strlen(prompts[0].reply->data);
} else {
prompts[0].reply->length = 0;
return 0;
}
+static bool smb_krb5_err_io_nstatus(TALLOC_CTX *mem_ctx,
+ DATA_BLOB *edata_blob,
+ KRB5_EDATA_NTSTATUS *edata)
+{
+ bool ret = False;
+ prs_struct ps;
+
+ if (!mem_ctx || !edata_blob || !edata)
+ return False;
+
+ if (!prs_init(&ps, edata_blob->length, mem_ctx, UNMARSHALL))
+ return False;
+
+ if (!prs_copy_data_in(&ps, (char *)edata_blob->data, edata_blob->length))
+ goto out;
+
+ prs_set_offset(&ps, 0);
+
+ if (!prs_ntstatus("ntstatus", &ps, 1, &edata->ntstatus))
+ goto out;
+
+ if (!prs_uint32("unknown1", &ps, 1, &edata->unknown1))
+ goto out;
+
+ if (!prs_uint32("unknown2", &ps, 1, &edata->unknown2)) /* only seen 00000001 here */
+ goto out;
+
+ ret = True;
+ out:
+ prs_mem_free(&ps);
+
+ return ret;
+}
+
+ static bool smb_krb5_get_ntstatus_from_krb5_error(krb5_error *error,
+ NTSTATUS *nt_status)
+{
+ DATA_BLOB edata;
+ DATA_BLOB unwrapped_edata;
+ TALLOC_CTX *mem_ctx;
+ KRB5_EDATA_NTSTATUS parsed_edata;
+
+#ifdef HAVE_E_DATA_POINTER_IN_KRB5_ERROR
+ edata = data_blob(error->e_data->data, error->e_data->length);
+#else
+ edata = data_blob(error->e_data.data, error->e_data.length);
+#endif /* HAVE_E_DATA_POINTER_IN_KRB5_ERROR */
+
+#ifdef DEVELOPER
+ dump_data(10, edata.data, edata.length);
+#endif /* DEVELOPER */
+
+ mem_ctx = talloc_init("smb_krb5_get_ntstatus_from_krb5_error");
+ if (mem_ctx == NULL) {
+ data_blob_free(&edata);
+ return False;
+ }
+
+ if (!unwrap_edata_ntstatus(mem_ctx, &edata, &unwrapped_edata)) {
+ data_blob_free(&edata);
+ TALLOC_FREE(mem_ctx);
+ return False;
+ }
+
+ data_blob_free(&edata);
+
+ if (!smb_krb5_err_io_nstatus(mem_ctx, &unwrapped_edata, &parsed_edata)) {
+ data_blob_free(&unwrapped_edata);
+ TALLOC_FREE(mem_ctx);
+ return False;
+ }
+
+ data_blob_free(&unwrapped_edata);
+
+ if (nt_status) {
+ *nt_status = parsed_edata.ntstatus;
+ }
+
+ TALLOC_FREE(mem_ctx);
+
+ return True;
+}
+
+ static bool smb_krb5_get_ntstatus_from_krb5_error_init_creds_opt(krb5_context ctx,
+ krb5_get_init_creds_opt *opt,
+ NTSTATUS *nt_status)
+{
+ bool ret = False;
+ krb5_error *error = NULL;
+
+#ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_GET_ERROR
+ ret = krb5_get_init_creds_opt_get_error(ctx, opt, &error);
+ if (ret) {
+ DEBUG(1,("krb5_get_init_creds_opt_get_error gave: %s\n",
+ error_message(ret)));
+ return False;
+ }
+#endif /* HAVE_KRB5_GET_INIT_CREDS_OPT_GET_ERROR */
+
+ if (!error) {
+ DEBUG(1,("no krb5_error\n"));
+ return False;
+ }
+
+#ifdef HAVE_E_DATA_POINTER_IN_KRB5_ERROR
+ if (!error->e_data) {
+#else
+ if (error->e_data.data == NULL) {
+#endif /* HAVE_E_DATA_POINTER_IN_KRB5_ERROR */
+ DEBUG(1,("no edata in krb5_error\n"));
+ krb5_free_error(ctx, error);
+ return False;
+ }
+
+ ret = smb_krb5_get_ntstatus_from_krb5_error(error, nt_status);
+
+ krb5_free_error(ctx, error);
+
+ return ret;
+}
+
/*
simulate a kinit, putting the tgt in the given cache location. If cache_name == NULL
place in default cache location.
time_t *expire_time,
time_t *renew_till_time,
const char *cache_name,
- BOOL request_pac,
- BOOL add_netbios_addr,
- time_t renewable_time)
+ bool request_pac,
+ bool add_netbios_addr,
+ time_t renewable_time,
+ NTSTATUS *ntstatus)
{
krb5_context ctx = NULL;
krb5_error_code code = 0;
krb5_ccache cc = NULL;
- krb5_principal me;
+ krb5_principal me = NULL;
krb5_creds my_creds;
- krb5_get_init_creds_opt opt;
+ krb5_get_init_creds_opt *opt = NULL;
smb_krb5_addresses *addr = NULL;
+ ZERO_STRUCT(my_creds);
+
initialize_krb5_error_table();
if ((code = krb5_init_context(&ctx)))
- return code;
+ goto out;
if (time_offset != 0) {
krb5_set_real_time(ctx, time(NULL) + time_offset, 0);
}
- DEBUG(10,("kerberos_kinit_password: using %s as ccache\n",
- cache_name ? cache_name: krb5_cc_default_name(ctx)));
+ DEBUG(10,("kerberos_kinit_password: using [%s] as ccache and config [%s]\n",
+ cache_name ? cache_name: krb5_cc_default_name(ctx),
+ getenv("KRB5_CONFIG")));
if ((code = krb5_cc_resolve(ctx, cache_name ? cache_name : krb5_cc_default_name(ctx), &cc))) {
- krb5_free_context(ctx);
- return code;
+ goto out;
}
if ((code = smb_krb5_parse_name(ctx, principal, &me))) {
- krb5_free_context(ctx);
- return code;
+ goto out;
}
- krb5_get_init_creds_opt_init(&opt);
- krb5_get_init_creds_opt_set_renew_life(&opt, renewable_time);
- krb5_get_init_creds_opt_set_forwardable(&opt, 1);
-
- if (request_pac) {
+ if ((code = smb_krb5_get_init_creds_opt_alloc(ctx, &opt))) {
+ goto out;
+ }
+
+ krb5_get_init_creds_opt_set_renew_life(opt, renewable_time);
+ krb5_get_init_creds_opt_set_forwardable(opt, True);
+#if 0
+ /* insane testing */
+ krb5_get_init_creds_opt_set_tkt_life(opt, 60);
+#endif
+
#ifdef HAVE_KRB5_GET_INIT_CREDS_OPT_SET_PAC_REQUEST
- code = krb5_get_init_creds_opt_set_pac_request(ctx, &opt, True);
- if (code) {
- krb5_free_principal(ctx, me);
- krb5_free_context(ctx);
- return code;
+ if (request_pac) {
+ if ((code = krb5_get_init_creds_opt_set_pac_request(ctx, opt, (krb5_boolean)request_pac))) {
+ goto out;
}
-#endif
}
-
+#endif
if (add_netbios_addr) {
- code = smb_krb5_gen_netbios_krb5_address(&addr);
- if (code) {
- krb5_free_principal(ctx, me);
- krb5_free_context(ctx);
- return code;
+ if ((code = smb_krb5_gen_netbios_krb5_address(&addr))) {
+ goto out;
}
- krb5_get_init_creds_opt_set_address_list(&opt, addr->addrs);
+ krb5_get_init_creds_opt_set_address_list(opt, addr->addrs);
}
if ((code = krb5_get_init_creds_password(ctx, &my_creds, me, CONST_DISCARD(char *,password),
- kerb_prompter, NULL, 0, NULL, &opt)))
- {
- smb_krb5_free_addresses(ctx, addr);
- krb5_free_principal(ctx, me);
- krb5_free_context(ctx);
- return code;
+ kerb_prompter, CONST_DISCARD(char *,password),
+ 0, NULL, opt))) {
+ goto out;
}
-
+
if ((code = krb5_cc_initialize(ctx, cc, me))) {
- smb_krb5_free_addresses(ctx, addr);
- krb5_free_cred_contents(ctx, &my_creds);
- krb5_free_principal(ctx, me);
- krb5_free_context(ctx);
- return code;
+ goto out;
}
if ((code = krb5_cc_store_cred(ctx, cc, &my_creds))) {
- krb5_cc_close(ctx, cc);
- smb_krb5_free_addresses(ctx, addr);
- krb5_free_cred_contents(ctx, &my_creds);
- krb5_free_principal(ctx, me);
- krb5_free_context(ctx);
- return code;
+ goto out;
}
if (expire_time) {
if (renew_till_time) {
*renew_till_time = (time_t) my_creds.times.renew_till;
}
+ out:
+ if (ntstatus) {
+
+ NTSTATUS status;
+
+ /* fast path */
+ if (code == 0) {
+ *ntstatus = NT_STATUS_OK;
+ goto cleanup;
+ }
+
+ /* try to get ntstatus code out of krb5_error when we have it
+ * inside the krb5_get_init_creds_opt - gd */
+
+ if (opt && smb_krb5_get_ntstatus_from_krb5_error_init_creds_opt(ctx, opt, &status)) {
+ *ntstatus = status;
+ goto cleanup;
+ }
- krb5_cc_close(ctx, cc);
- smb_krb5_free_addresses(ctx, addr);
+ /* fall back to self-made-mapping */
+ *ntstatus = krb5_to_nt_status(code);
+ }
+
+ cleanup:
krb5_free_cred_contents(ctx, &my_creds);
- krb5_free_principal(ctx, me);
- krb5_free_context(ctx);
-
- return 0;
+ if (me) {
+ krb5_free_principal(ctx, me);
+ }
+ if (addr) {
+ smb_krb5_free_addresses(ctx, addr);
+ }
+ if (opt) {
+ smb_krb5_get_init_creds_opt_free(ctx, opt);
+ }
+ if (cc) {
+ krb5_cc_close(ctx, cc);
+ }
+ if (ctx) {
+ krb5_free_context(ctx);
+ }
+ return code;
}
}
ret = kerberos_kinit_password_ext(s, ads->auth.password, ads->auth.time_offset,
- &ads->auth.expire, NULL, NULL, False, False, ads->auth.renewable);
+ &ads->auth.tgt_expire, NULL, NULL, False, False, ads->auth.renewable,
+ NULL);
if (ret) {
DEBUG(0,("kerberos_kinit_password %s failed: %s\n",
/************************************************************************
************************************************************************/
-BOOL kerberos_secrets_store_des_salt( const char* salt )
+bool kerberos_secrets_store_des_salt( const char* salt )
{
char* key;
- BOOL ret;
+ bool ret;
if ( (key = des_salt_key()) == NULL ) {
DEBUG(0,("kerberos_secrets_store_des_salt: failed to generate key!\n"));
Setting principal to NULL deletes this entry.
************************************************************************/
-BOOL kerberos_secrets_store_salting_principal(const char *service,
+bool kerberos_secrets_store_salting_principal(const char *service,
int enctype,
const char *principal)
{
char *key = NULL;
- BOOL ret = False;
+ bool ret = False;
krb5_context context = NULL;
krb5_principal princ = NULL;
char *princ_s = NULL;
cache_name,
False,
False,
- 0);
+ 0,
+ NULL);
+}
+
+/************************************************************************
+ Create a string list of available kdc's, possibly searching by sitename.
+ Does DNS queries.
+************************************************************************/
+
+static char *get_kdc_ip_string(char *mem_ctx, const char *realm, const char *sitename, struct in_addr primary_ip)
+{
+ int i;
+ struct ip_service *ip_srv_site = NULL;
+ struct ip_service *ip_srv_nonsite;
+ int count_site = 0;
+ int count_nonsite;
+ char *kdc_str = talloc_asprintf(mem_ctx, "\tkdc = %s\n",
+ inet_ntoa(primary_ip));
+
+ if (kdc_str == NULL) {
+ return NULL;
+ }
+
+ /* Get the KDC's only in this site. */
+
+ if (sitename) {
+
+ get_kdc_list(realm, sitename, &ip_srv_site, &count_site);
+
+ for (i = 0; i < count_site; i++) {
+ if (ip_equal(ip_srv_site[i].ip, primary_ip)) {
+ continue;
+ }
+ /* Append to the string - inefficient but not done often. */
+ kdc_str = talloc_asprintf(mem_ctx, "%s\tkdc = %s\n",
+ kdc_str, inet_ntoa(ip_srv_site[i].ip));
+ if (!kdc_str) {
+ SAFE_FREE(ip_srv_site);
+ return NULL;
+ }
+ }
+ }
+
+ /* Get all KDC's. */
+
+ get_kdc_list(realm, NULL, &ip_srv_nonsite, &count_nonsite);
+
+ for (i = 0; i < count_nonsite; i++) {
+ int j;
+
+ if (ip_equal(ip_srv_nonsite[i].ip, primary_ip)) {
+ continue;
+ }
+
+ /* Ensure this isn't an IP already seen (YUK! this is n*n....) */
+ for (j = 0; j < count_site; j++) {
+ if (ip_equal(ip_srv_nonsite[i].ip, ip_srv_site[j].ip)) {
+ break;
+ }
+ /* As the lists are sorted we can break early if nonsite > site. */
+ if (ip_service_compare(&ip_srv_nonsite[i], &ip_srv_site[j]) > 0) {
+ break;
+ }
+ }
+ if (j != i) {
+ continue;
+ }
+
+ /* Append to the string - inefficient but not done often. */
+ kdc_str = talloc_asprintf(mem_ctx, "%s\tkdc = %s\n",
+ kdc_str, inet_ntoa(ip_srv_nonsite[i].ip));
+ if (!kdc_str) {
+ SAFE_FREE(ip_srv_site);
+ SAFE_FREE(ip_srv_nonsite);
+ return NULL;
+ }
+ }
+
+
+ SAFE_FREE(ip_srv_site);
+ SAFE_FREE(ip_srv_nonsite);
+
+ DEBUG(10,("get_kdc_ip_string: Returning %s\n",
+ kdc_str ));
+
+ return kdc_str;
}
+/************************************************************************
+ Create a specific krb5.conf file in the private directory pointing
+ at a specific kdc for a realm. Keyed off domain name. Sets
+ KRB5_CONFIG environment variable to point to this file. Must be
+ run as root or will fail (which is a good thing :-).
+************************************************************************/
+
+bool create_local_private_krb5_conf_for_domain(const char *realm, const char *domain,
+ const char *sitename, struct in_addr ip)
+{
+ char *dname = talloc_asprintf(NULL, "%s/smb_krb5", lp_lockdir());
+ char *tmpname = NULL;
+ char *fname = NULL;
+ char *file_contents = NULL;
+ char *kdc_ip_string = NULL;
+ size_t flen = 0;
+ ssize_t ret;
+ int fd;
+ char *realm_upper = NULL;
+
+ if (!dname) {
+ return False;
+ }
+ if ((mkdir(dname, 0755)==-1) && (errno != EEXIST)) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: "
+ "failed to create directory %s. Error was %s\n",
+ dname, strerror(errno) ));
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ tmpname = talloc_asprintf(dname, "%s/smb_tmp_krb5.XXXXXX", lp_lockdir());
+ if (!tmpname) {
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ fname = talloc_asprintf(dname, "%s/krb5.conf.%s", dname, domain);
+ if (!fname) {
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ DEBUG(10,("create_local_private_krb5_conf_for_domain: fname = %s, realm = %s, domain = %s\n",
+ fname, realm, domain ));
+
+ realm_upper = talloc_strdup(fname, realm);
+ strupper_m(realm_upper);
+
+ kdc_ip_string = get_kdc_ip_string(dname, realm, sitename, ip);
+ if (!kdc_ip_string) {
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ file_contents = talloc_asprintf(fname, "[libdefaults]\n\tdefault_realm = %s\n\n"
+ "[realms]\n\t%s = {\n"
+ "\t%s\t}\n",
+ realm_upper, realm_upper, kdc_ip_string);
+
+ if (!file_contents) {
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ flen = strlen(file_contents);
+
+ fd = smb_mkstemp(tmpname);
+ if (fd == -1) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: smb_mkstemp failed,"
+ " for file %s. Errno %s\n",
+ tmpname, strerror(errno) ));
+ }
+
+ if (fchmod(fd, 0644)==-1) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: fchmod failed for %s."
+ " Errno %s\n",
+ tmpname, strerror(errno) ));
+ unlink(tmpname);
+ close(fd);
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ ret = write(fd, file_contents, flen);
+ if (flen != ret) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: write failed,"
+ " returned %d (should be %u). Errno %s\n",
+ (int)ret, (unsigned int)flen, strerror(errno) ));
+ unlink(tmpname);
+ close(fd);
+ TALLOC_FREE(dname);
+ return False;
+ }
+ if (close(fd)==-1) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: close failed."
+ " Errno %s\n", strerror(errno) ));
+ unlink(tmpname);
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ if (rename(tmpname, fname) == -1) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: rename "
+ "of %s to %s failed. Errno %s\n",
+ tmpname, fname, strerror(errno) ));
+ unlink(tmpname);
+ TALLOC_FREE(dname);
+ return False;
+ }
+
+ DEBUG(5,("create_local_private_krb5_conf_for_domain: wrote "
+ "file %s with realm %s KDC = %s\n",
+ fname, realm_upper, inet_ntoa(ip) ));
+
+ /* Set the environment variable to this file. */
+ setenv("KRB5_CONFIG", fname, 1);
+
+#if defined(OVERWRITE_SYSTEM_KRB5_CONF)
+
+#define SYSTEM_KRB5_CONF_PATH "/etc/krb5.conf"
+ /* Insanity, sheer insanity..... */
+
+ if (strequal(realm, lp_realm())) {
+ pstring linkpath;
+ int lret;
+
+ lret = readlink(SYSTEM_KRB5_CONF_PATH, linkpath, sizeof(linkpath)-1);
+ linkpath[sizeof(pstring)-1] = '\0';
+
+ if (lret == 0 || strcmp(linkpath, fname) == 0) {
+ /* Symlink already exists. */
+ TALLOC_FREE(dname);
+ return True;
+ }
+
+ /* Try and replace with a symlink. */
+ if (symlink(fname, SYSTEM_KRB5_CONF_PATH) == -1) {
+ if (errno != EEXIST) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: symlink "
+ "of %s to %s failed. Errno %s\n",
+ fname, SYSTEM_KRB5_CONF_PATH, strerror(errno) ));
+ TALLOC_FREE(dname);
+ return True; /* Not a fatal error. */
+ }
+
+ pstrcpy(linkpath, SYSTEM_KRB5_CONF_PATH);
+ pstrcat(linkpath, ".saved");
+
+ /* Yes, this is a race conditon... too bad. */
+ if (rename(SYSTEM_KRB5_CONF_PATH, linkpath) == -1) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: rename "
+ "of %s to %s failed. Errno %s\n",
+ SYSTEM_KRB5_CONF_PATH, linkpath,
+ strerror(errno) ));
+ TALLOC_FREE(dname);
+ return True; /* Not a fatal error. */
+ }
+
+ if (symlink(fname, "/etc/krb5.conf") == -1) {
+ DEBUG(0,("create_local_private_krb5_conf_for_domain: "
+ "forced symlink of %s to /etc/krb5.conf failed. Errno %s\n",
+ fname, strerror(errno) ));
+ TALLOC_FREE(dname);
+ return True; /* Not a fatal error. */
+ }
+ }
+ }
+#endif
+
+ TALLOC_FREE(dname);
+
+ return True;
+}
#endif
git.samba.org / jerry / samba.git / blobdiff