Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 507 insertions, 0 deletions

diff --git a/source3/lib/netapi/netapi.c b/source3/lib/netapi/netapi.c
new file mode 100644
index 0000000..fe98216
--- /dev/null
+++ b/source3/lib/netapi/netapi.c
@@ -0,0 +1,507 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  NetApi Support
+ *  Copyright (C) Guenther Deschner 2007-2008
+ *
+ *  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 "includes.h"
+#include "../libcli/auth/netlogon_creds_cli.h"
+#include "lib/netapi/netapi.h"
+#include "lib/netapi/netapi_private.h"
+#include "secrets.h"
+#include "krb5_env.h"
+#include "source3/param/loadparm.h"
+#include "lib/param/param.h"
+#include "auth/gensec/gensec.h"
+
+struct libnetapi_ctx *stat_ctx = NULL;
+static bool libnetapi_initialized = false;
+
+/****************************************************************
+****************************************************************/
+
+static NET_API_STATUS libnetapi_init_private_context(struct libnetapi_ctx *ctx)
+{
+	struct libnetapi_private_ctx *priv;
+
+	if (!ctx) {
+		return W_ERROR_V(WERR_INVALID_PARAMETER);
+	}
+
+	priv = talloc_zero(ctx, struct libnetapi_private_ctx);
+	if (!priv) {
+		return W_ERROR_V(WERR_NOT_ENOUGH_MEMORY);
+	}
+
+	ctx->private_data = priv;
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+Create a libnetapi context, for use in non-Samba applications.  This
+loads the smb.conf file and sets the debug level to 0, so that
+applications are not flooded with debug logs at level 10, when they
+were not expecting it.
+****************************************************************/
+
+NET_API_STATUS libnetapi_init(struct libnetapi_ctx **context)
+{
+	NET_API_STATUS ret;
+	TALLOC_CTX *frame;
+	if (stat_ctx && libnetapi_initialized) {
+		*context = stat_ctx;
+		return NET_API_STATUS_SUCCESS;
+	}
+
+#if 0
+	talloc_enable_leak_report();
+#endif
+	frame = talloc_stackframe();
+
+	/* When libnetapi is invoked from an application, it does not
+	 * want to be swamped with level 10 debug messages, even if
+	 * this has been set for the server in smb.conf */
+	lp_set_cmdline("log level", "0");
+	setup_logging("libnetapi", DEBUG_STDERR);
+
+	if (!lp_load_global(get_dyn_CONFIGFILE())) {
+		TALLOC_FREE(frame);
+		fprintf(stderr, "error loading %s\n", get_dyn_CONFIGFILE() );
+		return W_ERROR_V(WERR_GEN_FAILURE);
+	}
+
+	load_interfaces();
+	reopen_logs();
+
+	BlockSignals(True, SIGPIPE);
+
+	ret = libnetapi_net_init(context);
+	TALLOC_FREE(frame);
+	return ret;
+}
+
+/****************************************************************
+Create a libnetapi context, for use inside the 'net' binary.
+
+As we know net has already loaded the smb.conf file, and set the debug
+level etc, this avoids doing so again (which causes trouble with -d on
+the command line).
+****************************************************************/
+
+NET_API_STATUS libnetapi_net_init(struct libnetapi_ctx **context)
+{
+	NET_API_STATUS status;
+	struct libnetapi_ctx *ctx = NULL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct loadparm_context *lp_ctx = NULL;
+
+	ctx = talloc_zero(frame, struct libnetapi_ctx);
+	if (!ctx) {
+		TALLOC_FREE(frame);
+		return W_ERROR_V(WERR_NOT_ENOUGH_MEMORY);
+	}
+
+	ctx->creds = cli_credentials_init(ctx);
+	if (ctx->creds == NULL) {
+		TALLOC_FREE(frame);
+		return W_ERROR_V(WERR_NOT_ENOUGH_MEMORY);
+	}
+
+	lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
+	if (lp_ctx == NULL) {
+		TALLOC_FREE(frame);
+		return W_ERROR_V(WERR_NOT_ENOUGH_MEMORY);
+	}
+
+	BlockSignals(True, SIGPIPE);
+
+	/* Ignore return code, as we might not have a smb.conf */
+	(void)cli_credentials_guess(ctx->creds, lp_ctx);
+
+	status = libnetapi_init_private_context(ctx);
+	if (status != 0) {
+		TALLOC_FREE(frame);
+		return status;
+	}
+
+	libnetapi_initialized = true;
+
+	talloc_steal(NULL, ctx);
+	*context = stat_ctx = ctx;
+	
+	TALLOC_FREE(frame);
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+ Return the static libnetapi context
+****************************************************************/
+
+NET_API_STATUS libnetapi_getctx(struct libnetapi_ctx **ctx)
+{
+	if (stat_ctx) {
+		*ctx = stat_ctx;
+		return NET_API_STATUS_SUCCESS;
+	}
+
+	return libnetapi_init(ctx);
+}
+
+/****************************************************************
+ Free the static libnetapi context
+****************************************************************/
+
+NET_API_STATUS libnetapi_free(struct libnetapi_ctx *ctx)
+{
+	TALLOC_CTX *frame;
+
+	if (!ctx) {
+		return NET_API_STATUS_SUCCESS;
+	}
+
+	frame = talloc_stackframe();
+	libnetapi_samr_free(ctx);
+
+	libnetapi_shutdown_cm(ctx);
+
+	gfree_loadparm();
+	gfree_charcnv();
+	gfree_interfaces();
+
+	secrets_shutdown();
+
+	netlogon_creds_cli_close_global_db();
+
+	if (ctx == stat_ctx) {
+		stat_ctx = NULL;
+	}
+	TALLOC_FREE(ctx);
+
+	gfree_debugsyms();
+	talloc_free(frame);
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+ Override the current log level for libnetapi
+****************************************************************/
+
+NET_API_STATUS libnetapi_set_debuglevel(struct libnetapi_ctx *ctx,
+					const char *debuglevel)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	ctx->debuglevel = talloc_strdup(ctx, debuglevel);
+	
+	if (!lp_set_cmdline("log level", debuglevel)) {
+		TALLOC_FREE(frame);
+		return W_ERROR_V(WERR_GEN_FAILURE);
+	}
+	TALLOC_FREE(frame);
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS libnetapi_set_logfile(struct libnetapi_ctx *ctx,
+				     const char *logfile)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	ctx->logfile = talloc_strdup(ctx, logfile);
+
+	if (!lp_set_cmdline("log file", logfile)) {
+		TALLOC_FREE(frame);
+		return W_ERROR_V(WERR_GEN_FAILURE);
+	}
+	debug_set_logfile(logfile);
+	setup_logging("libnetapi", DEBUG_FILE);
+	TALLOC_FREE(frame);
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS libnetapi_get_debuglevel(struct libnetapi_ctx *ctx,
+					char **debuglevel)
+{
+	*debuglevel = ctx->debuglevel;
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+/**
+ * @brief Get the username of the libnet context
+ *
+ * @param[in]  ctx      The netapi context
+ *
+ * @param[in]  username A pointer to hold the username.
+ *
+ * @return 0 on success, an werror code otherwise.
+ */
+NET_API_STATUS libnetapi_get_username(struct libnetapi_ctx *ctx,
+				      const char **username)
+{
+	if (ctx == NULL) {
+		return W_ERROR_V(WERR_INVALID_PARAMETER);
+	}
+
+	if (username != NULL) {
+		*username = cli_credentials_get_username(ctx->creds);
+	}
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/**
+ * @brief Get the password of the libnet context
+ *
+ * @param[in]  ctx      The netapi context
+ *
+ * @param[in]  password A pointer to hold the password.
+ *
+ * @return 0 on success, an werror code otherwise.
+ */
+NET_API_STATUS libnetapi_get_password(struct libnetapi_ctx *ctx,
+				      const char **password)
+{
+	if (ctx == NULL) {
+		return W_ERROR_V(WERR_INVALID_PARAMETER);
+	}
+
+	if (password != NULL) {
+		*password = cli_credentials_get_password(ctx->creds);
+	}
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+NET_API_STATUS libnetapi_set_username(struct libnetapi_ctx *ctx,
+				      const char *username)
+{
+	if (ctx == NULL || username == NULL) {
+		return W_ERROR_V(WERR_INVALID_PARAMETER);
+	}
+
+	cli_credentials_parse_string(ctx->creds, username, CRED_SPECIFIED);
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+NET_API_STATUS libnetapi_set_password(struct libnetapi_ctx *ctx,
+				      const char *password)
+{
+	bool ok;
+
+	if (ctx == NULL || password == NULL) {
+		return W_ERROR_V(WERR_INVALID_PARAMETER);
+	}
+
+	ok = cli_credentials_set_password(ctx->creds, password, CRED_SPECIFIED);
+	if (!ok) {
+		return W_ERROR_V(WERR_INTERNAL_ERROR);
+	}
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+NET_API_STATUS libnetapi_set_workgroup(struct libnetapi_ctx *ctx,
+				       const char *workgroup)
+{
+	bool ok;
+
+	ok = cli_credentials_set_domain(ctx->creds, workgroup, CRED_SPECIFIED);
+	if (!ok) {
+		return W_ERROR_V(WERR_INTERNAL_ERROR);
+	}
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/**
+ * @brief Set the cli_credentials to be used in the netapi context
+ *
+ * @param[in]  ctx    The netapi context
+ *
+ * @param[in]  creds  The cli_credentials which should be used by netapi.
+ *
+ * @return 0 on success, an werror code otherwise.
+ */
+NET_API_STATUS libnetapi_set_creds(struct libnetapi_ctx *ctx,
+				   struct cli_credentials *creds)
+{
+	if (ctx == NULL || creds == NULL) {
+		return W_ERROR_V(WERR_INVALID_PARAMETER);
+	}
+
+	ctx->creds = creds;
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS libnetapi_set_use_kerberos(struct libnetapi_ctx *ctx)
+{
+	cli_credentials_set_kerberos_state(ctx->creds,
+					   CRED_USE_KERBEROS_REQUIRED,
+					   CRED_SPECIFIED);
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS libnetapi_get_use_kerberos(struct libnetapi_ctx *ctx,
+					  int *use_kerberos)
+{
+	enum credentials_use_kerberos creds_use_kerberos;
+
+	*use_kerberos = 0;
+
+	creds_use_kerberos = cli_credentials_get_kerberos_state(ctx->creds);
+	if (creds_use_kerberos > CRED_USE_KERBEROS_DESIRED) {
+		*use_kerberos = 1;
+	}
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS libnetapi_set_use_ccache(struct libnetapi_ctx *ctx)
+{
+	uint32_t gensec_features;
+
+	gensec_features = cli_credentials_get_gensec_features(ctx->creds);
+	gensec_features |= GENSEC_FEATURE_NTLM_CCACHE;
+	cli_credentials_set_gensec_features(ctx->creds,
+					    gensec_features,
+					    CRED_SPECIFIED);
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+Return a libnetapi error as a string, caller must free with NetApiBufferFree
+****************************************************************/
+
+char *libnetapi_errstr(NET_API_STATUS status)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	char *ret;
+	if (status & 0xc0000000) {
+		ret = talloc_strdup(NULL, 
+				     get_friendly_nt_error_msg(NT_STATUS(status)));
+	} else {
+		ret = talloc_strdup(NULL,
+				    get_friendly_werror_msg(W_ERROR(status)));
+	}
+	TALLOC_FREE(frame);
+	return ret;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS libnetapi_set_error_string(struct libnetapi_ctx *ctx,
+					  const char *format, ...)
+{
+	va_list args;
+
+	TALLOC_FREE(ctx->error_string);
+
+	va_start(args, format);
+	ctx->error_string = talloc_vasprintf(ctx, format, args);
+	va_end(args);
+
+	if (!ctx->error_string) {
+		return W_ERROR_V(WERR_NOT_ENOUGH_MEMORY);
+	}
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+Return a libnetapi_errstr(), caller must free with NetApiBufferFree
+****************************************************************/
+
+char *libnetapi_get_error_string(struct libnetapi_ctx *ctx,
+				       NET_API_STATUS status_in)
+{
+	NET_API_STATUS status;
+	struct libnetapi_ctx *tmp_ctx = ctx;
+
+	if (!tmp_ctx) {
+		status = libnetapi_getctx(&tmp_ctx);
+		if (status != 0) {
+			return NULL;
+		}
+	}
+
+	if (tmp_ctx->error_string) {
+		return talloc_strdup(NULL, tmp_ctx->error_string);
+	}
+
+	return libnetapi_errstr(status_in);
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS NetApiBufferAllocate(uint32_t byte_count,
+				    void **buffer)
+{
+	void *buf = NULL;
+
+	if (!buffer) {
+		return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
+	}
+
+	if (byte_count == 0) {
+		goto done;
+	}
+
+	buf = talloc_size(NULL, byte_count);
+	if (!buf) {
+		return W_ERROR_V(WERR_NOT_ENOUGH_MEMORY);
+	}
+
+ done:
+	*buffer = buf;
+
+	return NET_API_STATUS_SUCCESS;
+}
+
+/****************************************************************
+****************************************************************/
+
+NET_API_STATUS NetApiBufferFree(void *buffer)
+{
+	if (!buffer) {
+		return W_ERROR_V(WERR_INSUFFICIENT_BUFFER);
+	}
+
+	talloc_free(buffer);
+
+	return NET_API_STATUS_SUCCESS;
+}