--- /dev/null
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+That's all there is to it!
--- /dev/null
+/*********************************************************
+ * Copyright (C) 2012,2018-2020 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation version 2.1 and no 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 Lesser GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *********************************************************/
+
+/*
+ * vgauthImport.c --
+ *
+ * Command line tool to import vgauth config data from the
+ * namespace DB and apply it to the running vgauth service.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <glib.h>
+
+#include "vmware.h"
+#include "vmcheck.h"
+#include "util.h"
+#include "dynbuf.h"
+
+#include "VGAuthCommon.h"
+#include "VGAuthError.h"
+#include "VGAuthAuthentication.h"
+#include "VGAuthAlias.h"
+#include "vmware/tools/guestrpc.h"
+#ifdef _WIN32
+#include "vmware/tools/win32util.h"
+#endif
+
+#define VGAUTHIMPORT_APP_NAME "vgauthImport"
+
+#define NOT_VMWARE_ERROR "Failed sending message to VMware.\n"
+
+static Bool ProcessNamespace(char *namespace);
+
+#define NSDB_PRIV_GET_VALUES_CMD "namespace-priv-get-values"
+#define NSDB_PRIV_SET_KEYS_CMD "namespace-priv-set-keys"
+
+/*
+ * The namspaceDB key names used.
+ */
+
+/*
+ * These 5 are set by the solution on the vSphere side.
+ */
+#define KEY_NAME_CERT "certificate"
+#define KEY_NAME_SUBJECT "subject"
+#define KEY_NAME_COMMENT "comment"
+#define KEY_NAME_USER "guestUsername"
+#define KEY_NAME_ADDMAPPED "addMapped"
+
+/*
+ * This is set by this tool to allow the solution to know when
+ * the data was imported.
+ */
+#define KEY_NAME_IMPORTED "imported"
+
+
+/*
+ * The underlying APIs will return values in the order they're
+ * queried. This structure simplifies deserializing the answers.
+ */
+typedef struct {
+ const char *keyName;
+ char *val;
+} KeyNameValue;
+
+static KeyNameValue nameVals[] = {
+ { KEY_NAME_CERT, NULL},
+ { KEY_NAME_SUBJECT, NULL},
+ { KEY_NAME_COMMENT, NULL},
+ { KEY_NAME_USER, NULL},
+ { KEY_NAME_ADDMAPPED, NULL},
+};
+
+
+static gboolean verboseLogFlag = FALSE;
+static gchar *gAppName = NULL;
+
+static const gchar *usageMsg = "namespaceID";
+static const gchar *summaryMsg = "";
+
+/*
+ ******************************************************************************
+ * PrintUsage -- */ /**
+ *
+ * Prints the usage mesage.
+ *
+ ******************************************************************************
+ */
+
+static void
+PrintUsage(GOptionContext *optCtx)
+{
+ gchar *usage;
+
+ usage = g_option_context_get_help(optCtx, TRUE, NULL);
+ g_printerr("%s", usage);
+ g_free(usage);
+}
+
+
+/*
+ ******************************************************************************
+ * vgauthLog -- */ /**
+ *
+ * VGAuth error log handler. Catches any noise generated by VGAuth
+ * lib or glib underneath it.
+ *
+ * @param[in] logDomain The source domain of the error message.
+ * @param[in] loglevl The priority level of the error.
+ * @param[in] msg The error message.
+ * @param[in] userData Any user-supplied data.
+ *
+ ******************************************************************************
+ */
+
+static void
+vgauthLog(const char *logDomain,
+ int loglevel,
+ const char *msg,
+ void *userData)
+{
+ /*
+ * Ignore debug and message levels.
+ */
+ if (loglevel &
+ (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)) {
+ fprintf(stderr, "VGAuth error: [%s] %s\n", logDomain, msg);
+ }
+}
+
+
+/*
+ ******************************************************************************
+ * ProcessQueryReply -- */ /**
+ *
+ * Processes the return data from the namespace-get call.
+ *
+ * Parses the data coming back from the namespace-get-values call, and
+ * updates the VGAuth alias store with the information.
+ *
+ * @param[in] result The raw data. UTF-8 bytestream with embedded NULs.
+ * @param[in] ersultLen The length of the data.
+ *
+ * @return TRUE if successful, FALSE otherwise.
+ *
+ ******************************************************************************
+ */
+
+static Bool
+ProcessQueryReply(char *result,
+ size_t resultLen)
+{
+ char *p = result;
+ VGAuthAliasInfo ai;
+ char *pemCert = NULL;
+ char *userName = NULL;
+ Bool addMapped = FALSE;
+ Bool status = TRUE;
+ VGAuthError vgErr;
+ VGAuthContext *ctx = NULL;
+ int i;
+ int numMapped = 0;
+ VGAuthMappedAlias *maList = NULL;
+ Bool alreadyExists = FALSE;
+
+ ASSERT(result);
+ ai.subject.type = VGAUTH_SUBJECT_NAMED;
+ ai.comment = "";
+ ai.subject.val.name = NULL;
+
+ /*
+ * Deserialize the results.
+ */
+ for (i = 0; i < ARRAYSIZE(nameVals); i++) {
+ nameVals[i].val = Util_SafeStrdup(p);
+ p += strlen(p) + 1;
+ ASSERT(p <= (result + resultLen));
+ }
+
+ /*
+ * Rename them so the VGAuth APIs have sane variable names.
+ */
+ pemCert = nameVals[0].val;
+ ai.subject.val.name = nameVals[1].val;
+ ai.comment = nameVals[2].val;
+ userName = nameVals[3].val;
+ addMapped = (*(nameVals[4].val) == 't' || *(nameVals[4].val) == 'T');
+
+ if (verboseLogFlag) {
+ printf("Certficate: \n%s\n", pemCert);
+ printf("Subject: %s\n", ai.subject.val.name);
+ printf("Comment: %s\n", ai.comment);
+ printf("GuestUsername: %s\n", userName);
+ printf("AddMapped: %d\n", addMapped);
+ }
+
+
+ /*
+ * Verify we got at least the args we require.
+ */
+ if ((NULL == userName) || (NULL == pemCert) ||
+ (NULL == ai.subject.val.name)) {
+ fprintf(stderr, "Missing required keys\n");
+ status = FALSE;
+ goto done;
+ }
+
+ /*
+ * Clear out extra whitespace.
+ *
+ * XXX VGAuth will clean up any whitespace in the cert, so this
+ * is needed to properly match. May have to go to the full cert clean
+ * that vgauth uses (base64 decode, base64 encode), or compare
+ * the base64 decoded data.
+ */
+ g_strstrip(pemCert);
+
+ /*
+ * Now tell VGAuth.
+ */
+ VGAuth_SetLogHandler(vgauthLog, NULL, 0, NULL);
+ vgErr = VGAuth_Init(VGAUTHIMPORT_APP_NAME, 0, NULL, &ctx);
+ if (VGAUTH_FAILED(vgErr)) {
+ fprintf(stderr, "Failed to init VGAuth context\n");
+ status = FALSE;
+ goto done;
+ }
+
+ /*
+ * Make sure we don't already have the entry.
+ *
+ * We only care for the addMapped case, since a duplicate mapped
+ * entry is an error. In the non-mapped case, a dup is a no-op.
+ */
+ if (addMapped) {
+ vgErr = VGAuth_QueryMappedAliases(ctx, 0, NULL,
+ &numMapped, &maList);
+ for (i = 0; i < numMapped; i++) {
+ if ((strcmp(pemCert, maList[i].pemCert) == 0) &&
+ (strcmp(userName, maList[i].userName) == 0)) {
+ int j;
+
+ for (j = 0; j < maList[i].numSubjects; j++) {
+ if (maList[i].subjects[j].type != VGAUTH_SUBJECT_NAMED) {
+ continue;
+ }
+ if (strcmp(ai.subject.val.name,
+ maList[i].subjects[j].val.name) == 0) {
+ fprintf(stderr,
+ "Entry already exists; just updating 'import' timestamp\n");
+ alreadyExists = TRUE;
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ * XXX
+ *
+ * Support a 'clobber' cmdline arg, that does a remove/add?
+ * Should only be useful for a comment tweak.
+ */
+
+ if (!alreadyExists) {
+ vgErr = VGAuth_AddAlias(ctx, userName, addMapped,
+ pemCert, &ai, 0, NULL);
+ if (VGAUTH_FAILED(vgErr)) {
+ fprintf(stderr, "Failed to set VGAuth data\n");
+ status = FALSE;
+ goto done;
+ }
+ } else {
+ /*
+ * XXX
+ *
+ * Lets return success, so the timestamp still gets updated.
+ * May want to tie this to a cmdline flag.
+ */
+ status = TRUE;
+ }
+
+done:
+ if (NULL != ctx) {
+ VGAuth_Shutdown(ctx);
+ }
+ for (i = 0; i < ARRAYSIZE(nameVals); i++) {
+ free(nameVals[i].val);
+ }
+ VGAuth_FreeMappedAliasList(numMapped, maList);
+
+ return status;
+}
+
+
+/*
+ ******************************************************************************
+ * SetImportTime -- */ /**
+ *
+ * Updates the namespace 'import' value with the current time.
+ *
+ * @param[in] namespace The namespace to be updated.
+ *
+ * @return TRUE if successful, FALSE otherwise.
+ *
+ ******************************************************************************
+ */
+
+static Bool
+SetImportTime(char *namespace)
+{
+ char *curTimeStr;
+ Bool status;
+ DynBuf buf;
+ char *result = NULL;
+ size_t resultLen;
+ GTimeVal now;
+
+ /*
+ * Use ISO timestamp to be VIM friendly.
+ */
+ g_get_current_time(&now);
+ curTimeStr = g_time_val_to_iso8601(&now);
+
+ DynBuf_Init(&buf);
+
+ /*
+ * Format is:
+ *
+ * namespace-set-keys <namespace>\0<numOps>\0<op>\0<key>\0<value>\0<oldVal>
+ *
+ * We have just a single op, and want to always set the value, clobbering
+ * anything already there.
+ */
+ if (!DynBuf_Append(&buf, NSDB_PRIV_SET_KEYS_CMD,
+ strlen(NSDB_PRIV_SET_KEYS_CMD)) ||
+ !DynBuf_Append(&buf, " ", 1) ||
+ !DynBuf_AppendString(&buf, namespace) ||
+ !DynBuf_AppendString(&buf, "1") || // numOps
+ !DynBuf_AppendString(&buf, "0") || // op 0 == setAlways
+ !DynBuf_AppendString(&buf, KEY_NAME_IMPORTED) ||
+ !DynBuf_AppendString(&buf, curTimeStr) ||
+ !DynBuf_Append(&buf, "", 1)) { // NULL for set always
+ fprintf(stderr, "Could not construct update request buffer\n");
+ status = FALSE;
+ } else {
+ status = RpcChannel_SendOneRaw(DynBuf_Get(&buf),
+ DynBuf_GetSize(&buf),
+ &result, &resultLen);
+ if (!status) {
+ fprintf(stderr, "Failed to update %s field after processing namespace '%s\n",
+ KEY_NAME_IMPORTED, namespace);
+ }
+ free(result);
+ }
+ g_free(curTimeStr);
+ DynBuf_Destroy(&buf);
+
+ return status;
+}
+
+
+/*
+ ******************************************************************************
+ * QueryNamespace -- */ /**
+ *
+ * Queries the namespace DB for the keys we want.
+ *
+ * @param[in] namespace The namespace name.
+ * @param[out] resultData The result data.
+ * @param[out] resultDataLen The length of the result data.
+ *
+ * @return TRUE if successful, FALSE otherwise.
+ *
+ ******************************************************************************
+ */
+
+static Bool
+QueryNamespace(char *namespace,
+ char **resultData,
+ size_t *resultDataLen)
+{
+ char *result = NULL;
+ size_t resultLen;
+ DynBuf buf;
+ int i;
+ Bool status = FALSE;
+
+ ASSERT(namespace);
+
+ *resultData = NULL;
+ *resultDataLen = 0;
+
+ DynBuf_Init(&buf);
+
+ /*
+ * Format is
+ *
+ * namespace-get-values <namespace>\0<key>\0...
+ *
+ */
+ if (!DynBuf_Append(&buf, NSDB_PRIV_GET_VALUES_CMD,
+ strlen(NSDB_PRIV_GET_VALUES_CMD)) ||
+ !DynBuf_Append(&buf, " ", 1) ||
+ !DynBuf_AppendString(&buf, namespace)) {
+ fprintf(stderr, "Could not contruct request buffer\n");
+ goto done;
+ }
+ for (i = 0; i < ARRAYSIZE(nameVals); i++) {
+ if (!DynBuf_AppendString(&buf, nameVals[i].keyName)) {
+ fprintf(stderr, "Could not contruct request buffer\n");
+ goto done;
+ }
+ }
+
+ status = RpcChannel_SendOneRaw(DynBuf_Get(&buf), DynBuf_GetSize(&buf),
+ &result, &resultLen);
+
+done:
+ *resultData = result;
+ *resultDataLen = resultLen;
+ DynBuf_Destroy(&buf);
+ return status;
+}
+
+
+/*
+ ******************************************************************************
+ * ProcessNamespace -- */ /**
+ *
+ * Processes the data in 'namespace'. Queries the namespace DB for
+ * the keys we want, sends them to VGAuth, and updates the namespace
+ * with a timestamp noting when the data was processed.
+ *
+ * @param[in] namespace The namespace name.
+ *
+ * @return TRUE if successful, FALSE otherwise.
+ *
+ ******************************************************************************
+ */
+
+static Bool
+ProcessNamespace(char *namespace)
+{
+ char *result = NULL;
+ size_t resultLen = 0;
+ Bool status = FALSE;
+
+ ASSERT(namespace);
+
+ status = QueryNamespace(namespace, &result, &resultLen);
+
+ if (!status) {
+ /*
+ * Underlying error message works just fine so use it.
+ */
+ fprintf(stderr, "Error: %s\n", result ? result : "NULL");
+ fprintf(stderr, "Failed to read namespace '%s'\n", namespace);
+ } else {
+ if (resultLen == 0) {
+ fprintf(stderr, "Error: No keys found in namespace '%s'\n", namespace);
+ } else {
+ status = ProcessQueryReply(result, resultLen);
+
+ if (status ) {
+ status = SetImportTime(namespace);
+ } else {
+ fprintf(stderr,
+ "Failed to import vgauth record from namespace '%s'\n",
+ namespace);
+ }
+ }
+ }
+
+ free(result);
+
+ return status;
+}
+
+
+/*
+ ******************************************************************************
+ * main -- */ /**
+ *
+ * Main entry point.
+ *
+ * @param[in] argc Number of args.
+ * @param[in] argv The args.
+ *
+ ******************************************************************************
+ */
+
+int
+main(int argc, char *argv[])
+{
+ int argcCopy;
+ char **argvCopy;
+ GError *gErr = NULL;
+ int success = -1;
+ const GOptionEntry options[] = {
+ { "verbose", 'v', 0, G_OPTION_ARG_NONE, &verboseLogFlag,
+ "Verbose logging mode", NULL },
+ { NULL },
+ };
+ GOptionContext *optCtx;
+#ifdef _WIN32
+ WinUtil_EnableSafePathSearching(TRUE);
+#endif
+
+ /*
+ * The options parser needs to modify these, and using the variables
+ * coming into main doesn't work.
+ */
+ argcCopy = argc;
+ argvCopy = argv;
+
+ gAppName = g_path_get_basename(argv[0]);
+
+ g_set_prgname(gAppName);
+ optCtx = g_option_context_new(usageMsg);
+ g_option_context_set_summary(optCtx, summaryMsg);
+ g_option_context_add_main_entries(optCtx, options, NULL);
+
+ /*
+ * Check if environment is VM
+ */
+ if (!VmCheck_IsVirtualWorld()) {
+ g_printerr("Error: %s must be run inside a virtual machine"
+ " on a VMware hypervisor product.\n", gAppName);
+ goto out;
+ }
+
+ if (!g_option_context_parse(optCtx, &argcCopy, &argvCopy, &gErr)) {
+ fprintf(stderr, "%s: %s\n", gAppName, gErr->message);
+ g_error_free(gErr);
+ goto out;
+ }
+
+ if (argc < 2) {
+ PrintUsage(optCtx);
+ goto out;
+ }
+
+ success = ProcessNamespace(argv[1]) ? 0 : 1;
+
+out:
+ g_option_context_free(optCtx);
+ g_free(gAppName);
+
+ return success;
+}
+
projects / thirdparty / open-vm-tools.git / commitdiff
