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-rw-r--r--source4/auth/credentials/credentials.c562
-rw-r--r--source4/auth/credentials/credentials_files.c293
-rw-r--r--source4/auth/credentials/credentials_krb5.c248
3 files changed, 1103 insertions, 0 deletions
diff --git a/source4/auth/credentials/credentials.c b/source4/auth/credentials/credentials.c
new file mode 100644
index 0000000000..11b413b1c6
--- /dev/null
+++ b/source4/auth/credentials/credentials.c
@@ -0,0 +1,562 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ User credentials handling
+
+ Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+
+ 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
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "lib/ldb/include/ldb.h"
+#include "librpc/gen_ndr/ndr_samr.h" /* for struct samrPassword */
+
+
+/**
+ * Create a new credentials structure
+ * @param mem_ctx TALLOC_CTX parent for credentials structure
+ */
+struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx)
+{
+ struct cli_credentials *cred = talloc(mem_ctx, struct cli_credentials);
+ if (!cred) {
+ return cred;
+ }
+
+ cred->netlogon_creds = NULL;
+ cred->machine_account_pending = False;
+ cred->workstation_obtained = CRED_UNINITIALISED;
+ cred->username_obtained = CRED_UNINITIALISED;
+ cred->password_obtained = CRED_UNINITIALISED;
+ cred->domain_obtained = CRED_UNINITIALISED;
+ cred->realm_obtained = CRED_UNINITIALISED;
+ cred->ccache_obtained = CRED_UNINITIALISED;
+ cred->principal_obtained = CRED_UNINITIALISED;
+ return cred;
+}
+
+/**
+ * Obtain the username for this credentials context.
+ * @param cred credentials context
+ * @retval The username set on this context.
+ * @note Return value will never be NULL except by programmer error.
+ */
+const char *cli_credentials_get_username(struct cli_credentials *cred)
+{
+ if (cred->machine_account_pending) {
+ cli_credentials_set_machine_account(cred);
+ }
+
+ if (cred->username_obtained == CRED_CALLBACK) {
+ cred->username = cred->username_cb(cred);
+ cred->username_obtained = CRED_SPECIFIED;
+ }
+
+ return cred->username;
+}
+
+BOOL cli_credentials_set_username(struct cli_credentials *cred,
+ const char *val, enum credentials_obtained obtained)
+{
+ if (obtained >= cred->username_obtained) {
+ cred->username = talloc_strdup(cred, val);
+ cred->username_obtained = obtained;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_username_callback(struct cli_credentials *cred,
+ const char *(*username_cb) (struct cli_credentials *))
+{
+ if (cred->username_obtained < CRED_CALLBACK) {
+ cred->username_cb = username_cb;
+ cred->username_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+
+
+/**
+ * Obtain the client principal for this credentials context.
+ * @param cred credentials context
+ * @retval The username set on this context.
+ * @note Return value will never be NULL except by programmer error.
+ */
+const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx)
+{
+ if (cred->machine_account_pending) {
+ cli_credentials_set_machine_account(cred);
+ }
+
+ if (cred->principal_obtained == CRED_CALLBACK) {
+ cred->principal = cred->principal_cb(cred);
+ cred->principal_obtained = CRED_SPECIFIED;
+ }
+
+ if (cred->principal_obtained < cred->username_obtained) {
+ if (cred->domain_obtained > cred->realm_obtained) {
+ return talloc_asprintf(mem_ctx, "%s@%s",
+ cli_credentials_get_username(cred),
+ cli_credentials_get_domain(cred));
+ } else {
+ return talloc_asprintf(mem_ctx, "%s@%s",
+ cli_credentials_get_username(cred),
+ cli_credentials_get_realm(cred));
+ }
+ }
+ return talloc_reference(mem_ctx, cred->principal);
+}
+
+BOOL cli_credentials_set_principal(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->principal_obtained) {
+ cred->principal = talloc_strdup(cred, val);
+ cred->principal_obtained = obtained;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_principal_callback(struct cli_credentials *cred,
+ const char *(*principal_cb) (struct cli_credentials *))
+{
+ if (cred->principal_obtained < CRED_CALLBACK) {
+ cred->principal_cb = principal_cb;
+ cred->principal_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_authentication_requested(struct cli_credentials *cred)
+{
+ if (cred->principal_obtained >= CRED_SPECIFIED) {
+ return True;
+ }
+ if (cred->username_obtained >= CRED_SPECIFIED) {
+ return True;
+ }
+ return False;
+}
+
+/**
+ * Obtain the password for this credentials context.
+ * @param cred credentials context
+ * @retval If set, the cleartext password, otherwise NULL
+ */
+const char *cli_credentials_get_password(struct cli_credentials *cred)
+{
+ if (cred->machine_account_pending) {
+ cli_credentials_set_machine_account(cred);
+ }
+
+ if (cred->password_obtained == CRED_CALLBACK) {
+ cred->password = cred->password_cb(cred);
+ cred->password_obtained = CRED_SPECIFIED;
+ }
+
+ return cred->password;
+}
+
+BOOL cli_credentials_set_password(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->password_obtained) {
+ cred->password = talloc_strdup(cred, val);
+ cred->password_obtained = obtained;
+
+ cred->nt_hash = NULL;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_password_callback(struct cli_credentials *cred,
+ const char *(*password_cb) (struct cli_credentials *))
+{
+ if (cred->password_obtained < CRED_CALLBACK) {
+ cred->password_cb = password_cb;
+ cred->password_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+/**
+ * Obtain the password for this credentials context.
+ * @param cred credentials context
+ * @retval If set, the cleartext password, otherwise NULL
+ */
+const struct samr_Password *cli_credentials_get_nt_hash(struct cli_credentials *cred,
+ TALLOC_CTX *mem_ctx)
+{
+ const char *password = cli_credentials_get_password(cred);
+
+ if (password) {
+ struct samr_Password *nt_hash = talloc(mem_ctx, struct samr_Password);
+ if (!nt_hash) {
+ return NULL;
+ }
+
+ E_md4hash(password, nt_hash->hash);
+
+ return nt_hash;
+ } else {
+ return cred->nt_hash;
+ }
+}
+
+BOOL cli_credentials_set_nt_hash(struct cli_credentials *cred,
+ const struct samr_Password *nt_hash,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->password_obtained) {
+ cli_credentials_set_password(cred, NULL, obtained);
+ cred->nt_hash = talloc(cred, struct samr_Password);
+ *cred->nt_hash = *nt_hash;
+ return True;
+ }
+
+ return False;
+}
+
+/**
+ * Obtain the 'short' or 'NetBIOS' domain for this credentials context.
+ * @param cred credentials context
+ * @retval The domain set on this context.
+ * @note Return value will never be NULL except by programmer error.
+ */
+const char *cli_credentials_get_domain(struct cli_credentials *cred)
+{
+ if (cred->machine_account_pending) {
+ cli_credentials_set_machine_account(cred);
+ }
+
+ if (cred->domain_obtained == CRED_CALLBACK) {
+ cred->domain = cred->domain_cb(cred);
+ cred->domain_obtained = CRED_SPECIFIED;
+ }
+
+ return cred->domain;
+}
+
+
+BOOL cli_credentials_set_domain(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->domain_obtained) {
+ cred->domain = talloc_strdup(cred, val);
+ cred->domain_obtained = obtained;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_domain_callback(struct cli_credentials *cred,
+ const char *(*domain_cb) (struct cli_credentials *))
+{
+ if (cred->domain_obtained < CRED_CALLBACK) {
+ cred->domain_cb = domain_cb;
+ cred->domain_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+void cli_credentials_get_ntlm_username_domain(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
+ const char **username,
+ const char **domain)
+{
+ if (cred->principal_obtained > cred->username_obtained) {
+ *domain = talloc_strdup(mem_ctx, "");
+ *username = cli_credentials_get_principal(cred, mem_ctx);
+ } else {
+ *domain = cli_credentials_get_domain(cred);
+ *username = cli_credentials_get_username(cred);
+ }
+}
+
+/**
+ * Obtain the Kerberos realm for this credentials context.
+ * @param cred credentials context
+ * @retval The realm set on this context.
+ * @note Return value will never be NULL except by programmer error.
+ */
+const char *cli_credentials_get_realm(struct cli_credentials *cred)
+{
+ if (cred->machine_account_pending) {
+ cli_credentials_set_machine_account(cred);
+ }
+
+ if (cred->realm_obtained == CRED_CALLBACK) {
+ cred->realm = cred->realm_cb(cred);
+ cred->realm_obtained = CRED_SPECIFIED;
+ }
+
+ return cred->realm;
+}
+
+/**
+ * Set the realm for this credentials context, and force it to
+ * uppercase for the sainity of our local kerberos libraries
+ */
+BOOL cli_credentials_set_realm(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->realm_obtained) {
+ cred->realm = strupper_talloc(cred, val);
+ cred->realm_obtained = obtained;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_realm_callback(struct cli_credentials *cred,
+ const char *(*realm_cb) (struct cli_credentials *))
+{
+ if (cred->realm_obtained < CRED_CALLBACK) {
+ cred->realm_cb = realm_cb;
+ cred->realm_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+/**
+ * Obtain the 'short' or 'NetBIOS' workstation name for this credentials context.
+ *
+ * @param cred credentials context
+ * @retval The workstation name set on this context.
+ * @note Return value will never be NULL except by programmer error.
+ */
+const char *cli_credentials_get_workstation(struct cli_credentials *cred)
+{
+ if (cred->workstation_obtained == CRED_CALLBACK) {
+ cred->workstation = cred->workstation_cb(cred);
+ cred->workstation_obtained = CRED_SPECIFIED;
+ }
+
+ return cred->workstation;
+}
+
+BOOL cli_credentials_set_workstation(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->workstation_obtained) {
+ cred->workstation = talloc_strdup(cred, val);
+ cred->workstation_obtained = obtained;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_workstation_callback(struct cli_credentials *cred,
+ const char *(*workstation_cb) (struct cli_credentials *))
+{
+ if (cred->workstation_obtained < CRED_CALLBACK) {
+ cred->workstation_cb = workstation_cb;
+ cred->workstation_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+/**
+ * Given a string, typically obtained from a -U argument, parse it into domain, username, realm and password fields
+ *
+ * The format accepted is [domain\\]user[%password] or user[@realm][%password]
+ *
+ * @param credentials Credentials structure on which to set the password
+ * @param data the string containing the username, password etc
+ * @param obtained This enum describes how 'specified' this password is
+ */
+
+void cli_credentials_parse_string(struct cli_credentials *credentials, const char *data, enum credentials_obtained obtained)
+{
+ char *uname, *p;
+
+ if (strcmp("%",data) == 0) {
+ cli_credentials_set_anonymous(credentials);
+ return;
+ }
+
+ uname = talloc_strdup(credentials, data);
+ if ((p = strchr_m(uname,'%'))) {
+ *p = 0;
+ cli_credentials_set_password(credentials, p+1, obtained);
+ }
+
+ if ((p = strchr_m(uname,'@'))) {
+ cli_credentials_set_principal(credentials, uname, obtained);
+ *p = 0;
+ cli_credentials_set_realm(credentials, p+1, obtained);
+ return;
+ } else if ((p = strchr_m(uname,'\\')) || (p = strchr_m(uname, '/'))) {
+ *p = 0;
+ cli_credentials_set_domain(credentials, uname, obtained);
+ uname = p+1;
+ }
+ cli_credentials_set_username(credentials, uname, obtained);
+}
+
+/**
+ * Specifies default values for domain, workstation and realm
+ * from the smb.conf configuration file
+ *
+ * @param cred Credentials structure to fill in
+ */
+void cli_credentials_set_conf(struct cli_credentials *cred)
+{
+ cli_credentials_set_username(cred, "", CRED_UNINITIALISED);
+ cli_credentials_set_domain(cred, lp_workgroup(), CRED_UNINITIALISED);
+ cli_credentials_set_workstation(cred, lp_netbios_name(), CRED_UNINITIALISED);
+ cli_credentials_set_realm(cred, lp_realm(), CRED_UNINITIALISED);
+}
+
+/**
+ * Guess defaults for credentials from environment variables,
+ * and from the configuration file
+ *
+ * @param cred Credentials structure to fill in
+ */
+void cli_credentials_guess(struct cli_credentials *cred)
+{
+ char *p;
+
+ cli_credentials_set_conf(cred);
+
+ if (getenv("LOGNAME")) {
+ cli_credentials_set_username(cred, getenv("LOGNAME"), CRED_GUESS_ENV);
+ }
+
+ if (getenv("USER")) {
+ cli_credentials_parse_string(cred, getenv("USER"), CRED_GUESS_ENV);
+ if ((p = strchr_m(getenv("USER"),'%'))) {
+ memset(p,0,strlen(cred->password));
+ }
+ }
+
+ if (getenv("DOMAIN")) {
+ cli_credentials_set_domain(cred, getenv("DOMAIN"), CRED_GUESS_ENV);
+ }
+
+ if (getenv("PASSWD")) {
+ cli_credentials_set_password(cred, getenv("PASSWD"), CRED_GUESS_ENV);
+ }
+
+ if (getenv("PASSWD_FD")) {
+ cli_credentials_parse_password_fd(cred, atoi(getenv("PASSWD_FD")), CRED_GUESS_FILE);
+ }
+
+ if (getenv("PASSWD_FILE")) {
+ cli_credentials_parse_password_file(cred, getenv("PASSWD_FILE"), CRED_GUESS_FILE);
+ }
+
+ cli_credentials_set_ccache(cred, NULL, CRED_GUESS_FILE);
+}
+
+/**
+ * Attach NETLOGON credentials for use with SCHANNEL
+ */
+
+void cli_credentials_set_netlogon_creds(struct cli_credentials *cred,
+ struct creds_CredentialState *netlogon_creds)
+{
+ cred->netlogon_creds = talloc_reference(cred, netlogon_creds);
+}
+
+/**
+ * Return attached NETLOGON credentials
+ */
+
+struct creds_CredentialState *cli_credentials_get_netlogon_creds(struct cli_credentials *cred)
+{
+ return cred->netlogon_creds;
+}
+
+/**
+ * Set NETLOGON secure channel type
+ */
+
+void cli_credentials_set_secure_channel_type(struct cli_credentials *cred,
+ enum netr_SchannelType secure_channel_type)
+{
+ cred->secure_channel_type = secure_channel_type;
+}
+
+/**
+ * Return NETLOGON secure chanel type
+ */
+
+enum netr_SchannelType cli_credentials_get_secure_channel_type(struct cli_credentials *cred)
+{
+ return cred->secure_channel_type;
+}
+
+/**
+ * Fill in a credentials structure as the anonymous user
+ */
+void cli_credentials_set_anonymous(struct cli_credentials *cred)
+{
+ cli_credentials_set_username(cred, "", CRED_SPECIFIED);
+ cli_credentials_set_domain(cred, "", CRED_SPECIFIED);
+ cli_credentials_set_password(cred, NULL, CRED_SPECIFIED);
+}
+
+/**
+ * Describe a credentials context as anonymous or authenticated
+ * @retval True if anonymous, False if a username is specified
+ */
+
+BOOL cli_credentials_is_anonymous(struct cli_credentials *cred)
+{
+ TALLOC_CTX *tmp_ctx = talloc_new(cred);
+ const char *username = cli_credentials_get_username(cred);
+
+ /* Yes, it is deliberate that we die if we have a NULL pointer
+ * here - anonymous is "", not NULL, which is 'never specified,
+ * never guessed', ie programmer bug */
+ if (!username[0]) {
+ talloc_free(tmp_ctx);
+ return True;
+ }
+
+ talloc_free(tmp_ctx);
+ return False;
+}
diff --git a/source4/auth/credentials/credentials_files.c b/source4/auth/credentials/credentials_files.c
new file mode 100644
index 0000000000..353ff61720
--- /dev/null
+++ b/source4/auth/credentials/credentials_files.c
@@ -0,0 +1,293 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ User credentials handling (as regards on-disk files)
+
+ Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+
+ 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
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "lib/ldb/include/ldb.h"
+#include "librpc/gen_ndr/ndr_samr.h" /* for struct samrPassword */
+#include "include/secrets.h"
+#include "system/filesys.h"
+
+/**
+ * Read a file descriptor, and parse it for a password (eg from a file or stdin)
+ *
+ * @param credentials Credentials structure on which to set the password
+ * @param fd open file descriptor to read the password from
+ * @param obtained This enum describes how 'specified' this password is
+ */
+
+BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials,
+ int fd, enum credentials_obtained obtained)
+{
+ char *p;
+ char pass[128];
+
+ for(p = pass, *p = '\0'; /* ensure that pass is null-terminated */
+ p && p - pass < sizeof(pass);) {
+ switch (read(fd, p, 1)) {
+ case 1:
+ if (*p != '\n' && *p != '\0') {
+ *++p = '\0'; /* advance p, and null-terminate pass */
+ break;
+ }
+ case 0:
+ if (p - pass) {
+ *p = '\0'; /* null-terminate it, just in case... */
+ p = NULL; /* then force the loop condition to become false */
+ break;
+ } else {
+ fprintf(stderr, "Error reading password from file descriptor %d: %s\n", fd, "empty password\n");
+ return False;
+ }
+
+ default:
+ fprintf(stderr, "Error reading password from file descriptor %d: %s\n",
+ fd, strerror(errno));
+ return False;
+ }
+ }
+
+ cli_credentials_set_password(credentials, pass, obtained);
+ return True;
+}
+
+/**
+ * Read a named file, and parse it for a password
+ *
+ * @param credentials Credentials structure on which to set the password
+ * @param file a named file to read the password from
+ * @param obtained This enum describes how 'specified' this password is
+ */
+
+BOOL cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained)
+{
+ int fd = open(file, O_RDONLY, 0);
+ BOOL ret;
+
+ if (fd < 0) {
+ fprintf(stderr, "Error opening PASSWD_FILE %s: %s\n",
+ file, strerror(errno));
+ return False;
+ }
+
+ ret = cli_credentials_parse_password_fd(credentials, fd, obtained);
+
+ close(fd);
+
+ return ret;
+}
+
+/**
+ * Read a named file, and parse it for username, domain, realm and password
+ *
+ * @param credentials Credentials structure on which to set the password
+ * @param file a named file to read the details from
+ * @param obtained This enum describes how 'specified' this password is
+ */
+
+BOOL cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained)
+{
+ uint16_t len = 0;
+ char *ptr, *val, *param;
+ char **lines;
+ int i, numlines;
+
+ lines = file_lines_load(file, &numlines, NULL);
+
+ if (lines == NULL)
+ {
+ /* fail if we can't open the credentials file */
+ d_printf("ERROR: Unable to open credentials file!\n");
+ return False;
+ }
+
+ for (i = 0; i < numlines; i++) {
+ len = strlen(lines[i]);
+
+ if (len == 0)
+ continue;
+
+ /* break up the line into parameter & value.
+ * will need to eat a little whitespace possibly */
+ param = lines[i];
+ if (!(ptr = strchr_m (lines[i], '=')))
+ continue;
+
+ val = ptr+1;
+ *ptr = '\0';
+
+ /* eat leading white space */
+ while ((*val!='\0') && ((*val==' ') || (*val=='\t')))
+ val++;
+
+ if (strwicmp("password", param) == 0) {
+ cli_credentials_set_password(cred, val, obtained);
+ } else if (strwicmp("username", param) == 0) {
+ cli_credentials_set_username(cred, val, obtained);
+ } else if (strwicmp("domain", param) == 0) {
+ cli_credentials_set_domain(cred, val, obtained);
+ } else if (strwicmp("realm", param) == 0) {
+ cli_credentials_set_realm(cred, val, obtained);
+ }
+ memset(lines[i], 0, len);
+ }
+
+ talloc_free(lines);
+
+ return True;
+}
+
+
+/**
+ * Fill in credentials for the machine trust account, from the secrets database.
+ *
+ * @param cred Credentials structure to fill in
+ * @retval NTSTATUS error detailing any failure
+ */
+NTSTATUS cli_credentials_set_machine_account(struct cli_credentials *cred)
+{
+ TALLOC_CTX *mem_ctx;
+
+ struct ldb_context *ldb;
+ int ldb_ret;
+ struct ldb_message **msgs;
+ const char *attrs[] = {
+ "secret",
+ "samAccountName",
+ "flatname",
+ "realm",
+ "secureChannelType",
+ "ntPwdHash",
+ "msDS-KeyVersionNumber",
+ NULL
+ };
+
+ const char *machine_account;
+ const char *password;
+ const char *domain;
+ const char *realm;
+ enum netr_SchannelType sct;
+
+ /* ok, we are going to get it now, don't recurse back here */
+ cred->machine_account_pending = False;
+
+ mem_ctx = talloc_named(cred, 0, "cli_credentials fetch machine password");
+ /* Local secrets are stored in secrets.ldb */
+ ldb = secrets_db_connect(mem_ctx);
+ if (!ldb) {
+ DEBUG(1, ("Could not open secrets.ldb\n"));
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ /* search for the secret record */
+ ldb_ret = gendb_search(ldb,
+ mem_ctx, ldb_dn_explode(mem_ctx, SECRETS_PRIMARY_DOMAIN_DN),
+ &msgs, attrs,
+ SECRETS_PRIMARY_DOMAIN_FILTER,
+ cli_credentials_get_domain(cred));
+ if (ldb_ret == 0) {
+ DEBUG(1, ("Could not find join record to domain: %s\n",
+ cli_credentials_get_domain(cred)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ } else if (ldb_ret != 1) {
+ DEBUG(1, ("Found more than one (%d) join records to domain: %s\n",
+ ldb_ret, cli_credentials_get_domain(cred)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ password = ldb_msg_find_string(msgs[0], "secret", NULL);
+
+ machine_account = ldb_msg_find_string(msgs[0], "samAccountName", NULL);
+
+ if (!machine_account) {
+ DEBUG(1, ("Could not find 'samAccountName' in join record to domain: %s\n",
+ cli_credentials_get_domain(cred)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ sct = ldb_msg_find_int(msgs[0], "secureChannelType", 0);
+ if (!sct) {
+ DEBUG(1, ("Domain join for acocunt %s did not have a secureChannelType set!\n",
+ machine_account));
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ if (!password) {
+ const struct ldb_val *nt_password_hash = ldb_msg_find_ldb_val(msgs[0], "ntPwdHash");
+ struct samr_Password hash;
+ ZERO_STRUCT(hash);
+ if (nt_password_hash) {
+ memcpy(hash.hash, nt_password_hash->data,
+ MIN(nt_password_hash->length, sizeof(hash.hash)));
+
+ cli_credentials_set_nt_hash(cred, &hash, CRED_SPECIFIED);
+ } else {
+
+ DEBUG(1, ("Could not find 'secret' in join record to domain: %s\n",
+ cli_credentials_get_domain(cred)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+ }
+
+ cli_credentials_set_secure_channel_type(cred, sct);
+
+ domain = ldb_msg_find_string(msgs[0], "flatname", NULL);
+ if (domain) {
+ cli_credentials_set_domain(cred, domain, CRED_SPECIFIED);
+ }
+
+ realm = ldb_msg_find_string(msgs[0], "realm", NULL);
+ if (realm) {
+ cli_credentials_set_realm(cred, realm, CRED_SPECIFIED);
+ }
+
+ cli_credentials_set_username(cred, machine_account, CRED_SPECIFIED);
+ if (password) {
+ cli_credentials_set_password(cred, password, CRED_SPECIFIED);
+ }
+
+ cli_credentials_set_kvno(cred, ldb_msg_find_int(msgs[0], "msDS-KeyVersionNumber", 0));
+
+ talloc_free(mem_ctx);
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * Ask that when required, the credentials system will be filled with
+ * machine trust account, from the secrets database.
+ *
+ * @param cred Credentials structure to fill in
+ * @note This function is used to call the above function after, rather
+ * than during, popt processing.
+ *
+ */
+void cli_credentials_set_machine_account_pending(struct cli_credentials *cred)
+{
+ cred->machine_account_pending = True;
+}
+
diff --git a/source4/auth/credentials/credentials_krb5.c b/source4/auth/credentials/credentials_krb5.c
new file mode 100644
index 0000000000..fb3239494e
--- /dev/null
+++ b/source4/auth/credentials/credentials_krb5.c
@@ -0,0 +1,248 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Handle user credentials (as regards krb5)
+
+ Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Tim Potter 2001
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+
+ 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
+ (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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "system/kerberos.h"
+#include "auth/kerberos/kerberos.h"
+
+
+int cli_credentials_set_from_ccache(struct cli_credentials *cred,
+ enum credentials_obtained obtained)
+{
+
+ krb5_principal princ;
+ krb5_error_code ret;
+ char *name;
+ char **realm;
+
+ ret = krb5_cc_get_principal(cred->ccache->smb_krb5_context->krb5_context,
+ cred->ccache->ccache, &princ);
+
+ if (ret) {
+ char *err_mess = smb_get_krb5_error_message(cred->ccache->smb_krb5_context->krb5_context, ret, cred);
+ DEBUG(1,("failed to get principal from ccache: %s\n",
+ err_mess));
+ talloc_free(err_mess);
+ return ret;
+ }
+
+ ret = krb5_unparse_name(cred->ccache->smb_krb5_context->krb5_context, princ, &name);
+ if (ret) {
+ char *err_mess = smb_get_krb5_error_message(cred->ccache->smb_krb5_context->krb5_context, ret, cred);
+ DEBUG(1,("failed to unparse principal from ccache: %s\n",
+ err_mess));
+ talloc_free(err_mess);
+ return ret;
+ }
+
+ realm = krb5_princ_realm(cred->ccache->smb_krb5_context->krb5_context, princ);
+
+ cli_credentials_set_principal(cred, name, obtained);
+
+ free(name);
+
+ krb5_free_principal(cred->ccache->smb_krb5_context->krb5_context, princ);
+
+ cred->ccache_obtained = obtained;
+
+ return 0;
+}
+
+
+static int free_mccache(void *ptr) {
+ struct ccache_container *ccc = ptr;
+ krb5_cc_destroy(ccc->smb_krb5_context->krb5_context, ccc->ccache);
+
+ return 0;
+}
+
+static int free_dccache(void *ptr) {
+ struct ccache_container *ccc = ptr;
+ krb5_cc_close(ccc->smb_krb5_context->krb5_context, ccc->ccache);
+
+ return 0;
+}
+
+int cli_credentials_set_ccache(struct cli_credentials *cred,
+ const char *name,
+ enum credentials_obtained obtained)
+{
+ krb5_error_code ret;
+ krb5_principal princ;
+ struct ccache_container *ccc = talloc(cred, struct ccache_container);
+ if (!ccc) {
+ return ENOMEM;
+ }
+
+ ret = smb_krb5_init_context(ccc, &ccc->smb_krb5_context);
+ if (ret) {
+ talloc_free(ccc);
+ return ret;
+ }
+ if (name) {
+ ret = krb5_cc_resolve(ccc->smb_krb5_context->krb5_context, name, &ccc->ccache);
+ if (ret) {
+ DEBUG(1,("failed to read krb5 ccache: %s: %s\n",
+ name,
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccc);
+ return ret;
+ }
+ } else {
+ ret = krb5_cc_default(ccc->smb_krb5_context->krb5_context, &ccc->ccache);
+ if (ret) {
+ DEBUG(3,("failed to read default krb5 ccache: %s\n",
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccc);
+ return ret;
+ }
+ }
+
+ talloc_set_destructor(ccc, free_dccache);
+
+ ret = krb5_cc_get_principal(ccc->smb_krb5_context->krb5_context, ccc->ccache, &princ);
+
+ if (ret) {
+ DEBUG(3,("failed to get principal from default ccache: %s\n",
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccc);
+ return ret;
+ }
+
+ krb5_free_principal(ccc->smb_krb5_context->krb5_context, princ);
+
+ cred->ccache = ccc;
+ talloc_steal(cred, ccc);
+
+ ret = cli_credentials_set_from_ccache(cred, obtained);
+
+ if (ret) {
+ return ret;
+ }
+
+ return 0;
+}
+
+
+int cli_credentials_new_ccache(struct cli_credentials *cred)
+{
+ krb5_error_code ret;
+ char *rand_string;
+ struct ccache_container *ccc = talloc(cred, struct ccache_container);
+ char *ccache_name;
+ if (!ccc) {
+ return ENOMEM;
+ }
+
+ rand_string = generate_random_str(NULL, 16);
+ if (!rand_string) {
+ talloc_free(ccc);
+ return ENOMEM;
+ }
+
+ ccache_name = talloc_asprintf(ccc, "MEMORY:%s",
+ rand_string);
+ talloc_free(rand_string);
+
+ if (!ccache_name) {
+ talloc_free(ccc);
+ return ENOMEM;
+ }
+
+ ret = smb_krb5_init_context(ccc, &ccc->smb_krb5_context);
+ if (ret) {
+ talloc_free(ccache_name);
+ talloc_free(ccc);
+ return ret;
+ }
+
+ ret = krb5_cc_resolve(ccc->smb_krb5_context->krb5_context, ccache_name, &ccc->ccache);
+ if (ret) {
+ DEBUG(1,("failed to generate a new krb5 ccache (%s): %s\n",
+ ccache_name,
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccache_name);
+ talloc_free(ccc);
+ return ret;
+ }
+
+ talloc_set_destructor(ccc, free_mccache);
+
+ cred->ccache = ccc;
+ talloc_steal(cred, ccc);
+ talloc_free(ccache_name);
+
+ return ret;
+}
+
+int cli_credentials_get_ccache(struct cli_credentials *cred,
+ struct ccache_container **ccc)
+{
+ krb5_error_code ret;
+
+ if (cred->ccache_obtained >= (MAX(cred->principal_obtained,
+ cred->username_obtained))) {
+ *ccc = cred->ccache;
+ return 0;
+ }
+ if (cli_credentials_is_anonymous(cred)) {
+ return EINVAL;
+ }
+
+ ret = cli_credentials_new_ccache(cred);
+ if (ret) {
+ return ret;
+ }
+ ret = kinit_to_ccache(cred, cred, cred->ccache->smb_krb5_context, cred->ccache->ccache);
+ if (ret) {
+ return ret;
+ }
+ ret = cli_credentials_set_from_ccache(cred, cred->principal_obtained);
+
+ if (ret) {
+ return ret;
+ }
+ *ccc = cred->ccache;
+ return ret;
+}
+
+/**
+ * Set Kerberos KVNO
+ */
+
+void cli_credentials_set_kvno(struct cli_credentials *cred,
+ int kvno)
+{
+ cred->kvno = kvno;
+}
+
+/**
+ * Return Kerberos KVNO
+ */
+
+int cli_credentials_get_kvno(struct cli_credentials *cred)
+{
+ return cred->kvno;
+}
+
generated by cgit (git 2.34.1) at 2024-12-27 07:45:14 +0000