1631 строка
36 KiB
C
1631 строка
36 KiB
C
/*
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* An implementation of key value pair (KVP) functionality for Linux.
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*
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*
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* Copyright (C) 2010, Novell, Inc.
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* Author : K. Y. Srinivasan <ksrinivasan@novell.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <sys/poll.h>
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#include <sys/utsname.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <arpa/inet.h>
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#include <linux/hyperv.h>
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#include <ifaddrs.h>
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#include <netdb.h>
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#include <syslog.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <net/if.h>
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#include <limits.h>
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#include <getopt.h>
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/*
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* KVP protocol: The user mode component first registers with the
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* the kernel component. Subsequently, the kernel component requests, data
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* for the specified keys. In response to this message the user mode component
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* fills in the value corresponding to the specified key. We overload the
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* sequence field in the cn_msg header to define our KVP message types.
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*
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* We use this infrastructure for also supporting queries from user mode
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* application for state that may be maintained in the KVP kernel component.
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*
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*/
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enum key_index {
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FullyQualifiedDomainName = 0,
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IntegrationServicesVersion, /*This key is serviced in the kernel*/
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NetworkAddressIPv4,
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NetworkAddressIPv6,
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OSBuildNumber,
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OSName,
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OSMajorVersion,
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OSMinorVersion,
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OSVersion,
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ProcessorArchitecture
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};
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enum {
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IPADDR = 0,
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NETMASK,
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GATEWAY,
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DNS
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};
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static int in_hand_shake = 1;
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static char *os_name = "";
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static char *os_major = "";
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static char *os_minor = "";
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static char *processor_arch;
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static char *os_build;
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static char *os_version;
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static char *lic_version = "Unknown version";
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static char full_domain_name[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
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static struct utsname uts_buf;
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/*
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* The location of the interface configuration file.
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*/
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#define KVP_CONFIG_LOC "/var/lib/hyperv"
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#ifndef KVP_SCRIPTS_PATH
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#define KVP_SCRIPTS_PATH "/usr/libexec/hypervkvpd/"
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#endif
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#define KVP_NET_DIR "/sys/class/net/"
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#define MAX_FILE_NAME 100
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#define ENTRIES_PER_BLOCK 50
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struct kvp_record {
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char key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
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char value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
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};
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struct kvp_file_state {
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int fd;
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int num_blocks;
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struct kvp_record *records;
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int num_records;
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char fname[MAX_FILE_NAME];
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};
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static struct kvp_file_state kvp_file_info[KVP_POOL_COUNT];
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static void kvp_acquire_lock(int pool)
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{
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struct flock fl = {F_WRLCK, SEEK_SET, 0, 0, 0};
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fl.l_pid = getpid();
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if (fcntl(kvp_file_info[pool].fd, F_SETLKW, &fl) == -1) {
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syslog(LOG_ERR, "Failed to acquire the lock pool: %d; error: %d %s", pool,
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errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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}
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static void kvp_release_lock(int pool)
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{
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struct flock fl = {F_UNLCK, SEEK_SET, 0, 0, 0};
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fl.l_pid = getpid();
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if (fcntl(kvp_file_info[pool].fd, F_SETLK, &fl) == -1) {
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syslog(LOG_ERR, "Failed to release the lock pool: %d; error: %d %s", pool,
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errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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}
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static void kvp_update_file(int pool)
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{
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FILE *filep;
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/*
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* We are going to write our in-memory registry out to
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* disk; acquire the lock first.
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*/
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kvp_acquire_lock(pool);
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filep = fopen(kvp_file_info[pool].fname, "we");
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if (!filep) {
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syslog(LOG_ERR, "Failed to open file, pool: %d; error: %d %s", pool,
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errno, strerror(errno));
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kvp_release_lock(pool);
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exit(EXIT_FAILURE);
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}
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fwrite(kvp_file_info[pool].records, sizeof(struct kvp_record),
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kvp_file_info[pool].num_records, filep);
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if (ferror(filep) || fclose(filep)) {
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kvp_release_lock(pool);
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syslog(LOG_ERR, "Failed to write file, pool: %d", pool);
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exit(EXIT_FAILURE);
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}
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kvp_release_lock(pool);
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}
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static void kvp_update_mem_state(int pool)
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{
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FILE *filep;
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size_t records_read = 0;
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struct kvp_record *record = kvp_file_info[pool].records;
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struct kvp_record *readp;
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int num_blocks = kvp_file_info[pool].num_blocks;
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int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK;
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kvp_acquire_lock(pool);
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filep = fopen(kvp_file_info[pool].fname, "re");
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if (!filep) {
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syslog(LOG_ERR, "Failed to open file, pool: %d; error: %d %s", pool,
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errno, strerror(errno));
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kvp_release_lock(pool);
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exit(EXIT_FAILURE);
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}
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for (;;) {
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readp = &record[records_read];
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records_read += fread(readp, sizeof(struct kvp_record),
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ENTRIES_PER_BLOCK * num_blocks - records_read,
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filep);
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if (ferror(filep)) {
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syslog(LOG_ERR,
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"Failed to read file, pool: %d; error: %d %s",
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pool, errno, strerror(errno));
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kvp_release_lock(pool);
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exit(EXIT_FAILURE);
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}
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if (!feof(filep)) {
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/*
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* We have more data to read.
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*/
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num_blocks++;
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record = realloc(record, alloc_unit * num_blocks);
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if (record == NULL) {
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syslog(LOG_ERR, "malloc failed");
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kvp_release_lock(pool);
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exit(EXIT_FAILURE);
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}
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continue;
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}
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break;
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}
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kvp_file_info[pool].num_blocks = num_blocks;
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kvp_file_info[pool].records = record;
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kvp_file_info[pool].num_records = records_read;
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fclose(filep);
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kvp_release_lock(pool);
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}
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static int kvp_file_init(void)
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{
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int fd;
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char *fname;
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int i;
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int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK;
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if (access(KVP_CONFIG_LOC, F_OK)) {
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if (mkdir(KVP_CONFIG_LOC, 0755 /* rwxr-xr-x */)) {
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syslog(LOG_ERR, "Failed to create '%s'; error: %d %s", KVP_CONFIG_LOC,
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errno, strerror(errno));
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exit(EXIT_FAILURE);
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}
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}
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for (i = 0; i < KVP_POOL_COUNT; i++) {
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fname = kvp_file_info[i].fname;
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sprintf(fname, "%s/.kvp_pool_%d", KVP_CONFIG_LOC, i);
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fd = open(fname, O_RDWR | O_CREAT | O_CLOEXEC, 0644 /* rw-r--r-- */);
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if (fd == -1)
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return 1;
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kvp_file_info[i].fd = fd;
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kvp_file_info[i].num_blocks = 1;
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kvp_file_info[i].records = malloc(alloc_unit);
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if (kvp_file_info[i].records == NULL)
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return 1;
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kvp_file_info[i].num_records = 0;
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kvp_update_mem_state(i);
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}
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return 0;
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}
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static int kvp_key_delete(int pool, const __u8 *key, int key_size)
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{
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int i;
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int j, k;
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int num_records;
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struct kvp_record *record;
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/*
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* First update the in-memory state.
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*/
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kvp_update_mem_state(pool);
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num_records = kvp_file_info[pool].num_records;
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record = kvp_file_info[pool].records;
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for (i = 0; i < num_records; i++) {
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if (memcmp(key, record[i].key, key_size))
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continue;
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/*
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* Found a match; just move the remaining
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* entries up.
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*/
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if (i == (num_records - 1)) {
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kvp_file_info[pool].num_records--;
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kvp_update_file(pool);
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return 0;
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}
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j = i;
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k = j + 1;
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for (; k < num_records; k++) {
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strcpy(record[j].key, record[k].key);
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strcpy(record[j].value, record[k].value);
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j++;
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}
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kvp_file_info[pool].num_records--;
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kvp_update_file(pool);
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return 0;
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}
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return 1;
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}
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static int kvp_key_add_or_modify(int pool, const __u8 *key, int key_size,
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const __u8 *value, int value_size)
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{
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int i;
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int num_records;
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struct kvp_record *record;
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int num_blocks;
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if ((key_size > HV_KVP_EXCHANGE_MAX_KEY_SIZE) ||
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(value_size > HV_KVP_EXCHANGE_MAX_VALUE_SIZE))
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return 1;
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/*
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* First update the in-memory state.
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*/
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kvp_update_mem_state(pool);
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num_records = kvp_file_info[pool].num_records;
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record = kvp_file_info[pool].records;
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num_blocks = kvp_file_info[pool].num_blocks;
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for (i = 0; i < num_records; i++) {
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if (memcmp(key, record[i].key, key_size))
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continue;
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/*
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* Found a match; just update the value -
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* this is the modify case.
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*/
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memcpy(record[i].value, value, value_size);
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kvp_update_file(pool);
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return 0;
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}
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/*
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* Need to add a new entry;
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*/
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if (num_records == (ENTRIES_PER_BLOCK * num_blocks)) {
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/* Need to allocate a larger array for reg entries. */
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record = realloc(record, sizeof(struct kvp_record) *
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ENTRIES_PER_BLOCK * (num_blocks + 1));
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if (record == NULL)
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return 1;
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kvp_file_info[pool].num_blocks++;
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}
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memcpy(record[i].value, value, value_size);
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memcpy(record[i].key, key, key_size);
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kvp_file_info[pool].records = record;
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kvp_file_info[pool].num_records++;
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kvp_update_file(pool);
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return 0;
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}
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static int kvp_get_value(int pool, const __u8 *key, int key_size, __u8 *value,
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int value_size)
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{
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int i;
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int num_records;
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struct kvp_record *record;
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if ((key_size > HV_KVP_EXCHANGE_MAX_KEY_SIZE) ||
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(value_size > HV_KVP_EXCHANGE_MAX_VALUE_SIZE))
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return 1;
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/*
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* First update the in-memory state.
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*/
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kvp_update_mem_state(pool);
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num_records = kvp_file_info[pool].num_records;
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record = kvp_file_info[pool].records;
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for (i = 0; i < num_records; i++) {
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if (memcmp(key, record[i].key, key_size))
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continue;
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/*
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* Found a match; just copy the value out.
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*/
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memcpy(value, record[i].value, value_size);
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return 0;
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}
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return 1;
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}
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static int kvp_pool_enumerate(int pool, int index, __u8 *key, int key_size,
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__u8 *value, int value_size)
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{
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struct kvp_record *record;
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/*
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* First update our in-memory database.
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*/
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kvp_update_mem_state(pool);
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record = kvp_file_info[pool].records;
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if (index >= kvp_file_info[pool].num_records) {
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return 1;
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}
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memcpy(key, record[index].key, key_size);
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memcpy(value, record[index].value, value_size);
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return 0;
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}
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void kvp_get_os_info(void)
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{
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FILE *file;
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char *p, buf[512];
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uname(&uts_buf);
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os_version = uts_buf.release;
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os_build = strdup(uts_buf.release);
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os_name = uts_buf.sysname;
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processor_arch = uts_buf.machine;
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/*
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* The current windows host (win7) expects the build
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* string to be of the form: x.y.z
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* Strip additional information we may have.
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*/
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p = strchr(os_version, '-');
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if (p)
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*p = '\0';
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/*
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* Parse the /etc/os-release file if present:
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* http://www.freedesktop.org/software/systemd/man/os-release.html
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*/
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file = fopen("/etc/os-release", "r");
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if (file != NULL) {
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while (fgets(buf, sizeof(buf), file)) {
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char *value, *q;
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/* Ignore comments */
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if (buf[0] == '#')
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continue;
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/* Split into name=value */
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p = strchr(buf, '=');
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if (!p)
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continue;
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*p++ = 0;
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/* Remove quotes and newline; un-escape */
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value = p;
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q = p;
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while (*p) {
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if (*p == '\\') {
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++p;
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if (!*p)
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break;
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*q++ = *p++;
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} else if (*p == '\'' || *p == '"' ||
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*p == '\n') {
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++p;
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} else {
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*q++ = *p++;
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}
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}
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*q = 0;
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if (!strcmp(buf, "NAME")) {
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p = strdup(value);
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if (!p)
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break;
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os_name = p;
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} else if (!strcmp(buf, "VERSION_ID")) {
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p = strdup(value);
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if (!p)
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break;
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os_major = p;
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}
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}
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fclose(file);
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return;
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}
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/* Fallback for older RH/SUSE releases */
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file = fopen("/etc/SuSE-release", "r");
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if (file != NULL)
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goto kvp_osinfo_found;
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file = fopen("/etc/redhat-release", "r");
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if (file != NULL)
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goto kvp_osinfo_found;
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/*
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* We don't have information about the os.
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*/
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return;
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kvp_osinfo_found:
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/* up to three lines */
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p = fgets(buf, sizeof(buf), file);
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if (p) {
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p = strchr(buf, '\n');
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if (p)
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*p = '\0';
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p = strdup(buf);
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if (!p)
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goto done;
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os_name = p;
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/* second line */
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p = fgets(buf, sizeof(buf), file);
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if (p) {
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p = strchr(buf, '\n');
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if (p)
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*p = '\0';
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p = strdup(buf);
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if (!p)
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goto done;
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os_major = p;
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/* third line */
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p = fgets(buf, sizeof(buf), file);
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if (p) {
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p = strchr(buf, '\n');
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if (p)
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*p = '\0';
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p = strdup(buf);
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if (p)
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os_minor = p;
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}
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}
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}
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done:
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fclose(file);
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return;
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}
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/*
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* Retrieve an interface name corresponding to the specified guid.
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* If there is a match, the function returns a pointer
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* to the interface name and if not, a NULL is returned.
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|
* If a match is found, the caller is responsible for
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* freeing the memory.
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*/
|
|
|
|
static char *kvp_get_if_name(char *guid)
|
|
{
|
|
DIR *dir;
|
|
struct dirent *entry;
|
|
FILE *file;
|
|
char *p, *x;
|
|
char *if_name = NULL;
|
|
char buf[256];
|
|
char dev_id[PATH_MAX];
|
|
|
|
dir = opendir(KVP_NET_DIR);
|
|
if (dir == NULL)
|
|
return NULL;
|
|
|
|
while ((entry = readdir(dir)) != NULL) {
|
|
/*
|
|
* Set the state for the next pass.
|
|
*/
|
|
snprintf(dev_id, sizeof(dev_id), "%s%s/device/device_id",
|
|
KVP_NET_DIR, entry->d_name);
|
|
|
|
file = fopen(dev_id, "r");
|
|
if (file == NULL)
|
|
continue;
|
|
|
|
p = fgets(buf, sizeof(buf), file);
|
|
if (p) {
|
|
x = strchr(p, '\n');
|
|
if (x)
|
|
*x = '\0';
|
|
|
|
if (!strcmp(p, guid)) {
|
|
/*
|
|
* Found the guid match; return the interface
|
|
* name. The caller will free the memory.
|
|
*/
|
|
if_name = strdup(entry->d_name);
|
|
fclose(file);
|
|
break;
|
|
}
|
|
}
|
|
fclose(file);
|
|
}
|
|
|
|
closedir(dir);
|
|
return if_name;
|
|
}
|
|
|
|
/*
|
|
* Retrieve the MAC address given the interface name.
|
|
*/
|
|
|
|
static char *kvp_if_name_to_mac(char *if_name)
|
|
{
|
|
FILE *file;
|
|
char *p, *x;
|
|
char buf[256];
|
|
char addr_file[PATH_MAX];
|
|
unsigned int i;
|
|
char *mac_addr = NULL;
|
|
|
|
snprintf(addr_file, sizeof(addr_file), "%s%s%s", KVP_NET_DIR,
|
|
if_name, "/address");
|
|
|
|
file = fopen(addr_file, "r");
|
|
if (file == NULL)
|
|
return NULL;
|
|
|
|
p = fgets(buf, sizeof(buf), file);
|
|
if (p) {
|
|
x = strchr(p, '\n');
|
|
if (x)
|
|
*x = '\0';
|
|
for (i = 0; i < strlen(p); i++)
|
|
p[i] = toupper(p[i]);
|
|
mac_addr = strdup(p);
|
|
}
|
|
|
|
fclose(file);
|
|
return mac_addr;
|
|
}
|
|
|
|
static void kvp_process_ipconfig_file(char *cmd,
|
|
char *config_buf, unsigned int len,
|
|
int element_size, int offset)
|
|
{
|
|
char buf[256];
|
|
char *p;
|
|
char *x;
|
|
FILE *file;
|
|
|
|
/*
|
|
* First execute the command.
|
|
*/
|
|
file = popen(cmd, "r");
|
|
if (file == NULL)
|
|
return;
|
|
|
|
if (offset == 0)
|
|
memset(config_buf, 0, len);
|
|
while ((p = fgets(buf, sizeof(buf), file)) != NULL) {
|
|
if (len < strlen(config_buf) + element_size + 1)
|
|
break;
|
|
|
|
x = strchr(p, '\n');
|
|
if (x)
|
|
*x = '\0';
|
|
|
|
strcat(config_buf, p);
|
|
strcat(config_buf, ";");
|
|
}
|
|
pclose(file);
|
|
}
|
|
|
|
static void kvp_get_ipconfig_info(char *if_name,
|
|
struct hv_kvp_ipaddr_value *buffer)
|
|
{
|
|
char cmd[512];
|
|
char dhcp_info[128];
|
|
char *p;
|
|
FILE *file;
|
|
|
|
/*
|
|
* Get the address of default gateway (ipv4).
|
|
*/
|
|
sprintf(cmd, "%s %s", "ip route show dev", if_name);
|
|
strcat(cmd, " | awk '/default/ {print $3 }'");
|
|
|
|
/*
|
|
* Execute the command to gather gateway info.
|
|
*/
|
|
kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way,
|
|
(MAX_GATEWAY_SIZE * 2), INET_ADDRSTRLEN, 0);
|
|
|
|
/*
|
|
* Get the address of default gateway (ipv6).
|
|
*/
|
|
sprintf(cmd, "%s %s", "ip -f inet6 route show dev", if_name);
|
|
strcat(cmd, " | awk '/default/ {print $3 }'");
|
|
|
|
/*
|
|
* Execute the command to gather gateway info (ipv6).
|
|
*/
|
|
kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way,
|
|
(MAX_GATEWAY_SIZE * 2), INET6_ADDRSTRLEN, 1);
|
|
|
|
|
|
/*
|
|
* Gather the DNS state.
|
|
* Since there is no standard way to get this information
|
|
* across various distributions of interest; we just invoke
|
|
* an external script that needs to be ported across distros
|
|
* of interest.
|
|
*
|
|
* Following is the expected format of the information from the script:
|
|
*
|
|
* ipaddr1 (nameserver1)
|
|
* ipaddr2 (nameserver2)
|
|
* .
|
|
* .
|
|
*/
|
|
|
|
sprintf(cmd, KVP_SCRIPTS_PATH "%s", "hv_get_dns_info");
|
|
|
|
/*
|
|
* Execute the command to gather DNS info.
|
|
*/
|
|
kvp_process_ipconfig_file(cmd, (char *)buffer->dns_addr,
|
|
(MAX_IP_ADDR_SIZE * 2), INET_ADDRSTRLEN, 0);
|
|
|
|
/*
|
|
* Gather the DHCP state.
|
|
* We will gather this state by invoking an external script.
|
|
* The parameter to the script is the interface name.
|
|
* Here is the expected output:
|
|
*
|
|
* Enabled: DHCP enabled.
|
|
*/
|
|
|
|
sprintf(cmd, KVP_SCRIPTS_PATH "%s %s", "hv_get_dhcp_info", if_name);
|
|
|
|
file = popen(cmd, "r");
|
|
if (file == NULL)
|
|
return;
|
|
|
|
p = fgets(dhcp_info, sizeof(dhcp_info), file);
|
|
if (p == NULL) {
|
|
pclose(file);
|
|
return;
|
|
}
|
|
|
|
if (!strncmp(p, "Enabled", 7))
|
|
buffer->dhcp_enabled = 1;
|
|
else
|
|
buffer->dhcp_enabled = 0;
|
|
|
|
pclose(file);
|
|
}
|
|
|
|
|
|
static unsigned int hweight32(unsigned int *w)
|
|
{
|
|
unsigned int res = *w - ((*w >> 1) & 0x55555555);
|
|
res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
|
|
res = (res + (res >> 4)) & 0x0F0F0F0F;
|
|
res = res + (res >> 8);
|
|
return (res + (res >> 16)) & 0x000000FF;
|
|
}
|
|
|
|
static int kvp_process_ip_address(void *addrp,
|
|
int family, char *buffer,
|
|
int length, int *offset)
|
|
{
|
|
struct sockaddr_in *addr;
|
|
struct sockaddr_in6 *addr6;
|
|
int addr_length;
|
|
char tmp[50];
|
|
const char *str;
|
|
|
|
if (family == AF_INET) {
|
|
addr = (struct sockaddr_in *)addrp;
|
|
str = inet_ntop(family, &addr->sin_addr, tmp, 50);
|
|
addr_length = INET_ADDRSTRLEN;
|
|
} else {
|
|
addr6 = (struct sockaddr_in6 *)addrp;
|
|
str = inet_ntop(family, &addr6->sin6_addr.s6_addr, tmp, 50);
|
|
addr_length = INET6_ADDRSTRLEN;
|
|
}
|
|
|
|
if ((length - *offset) < addr_length + 2)
|
|
return HV_E_FAIL;
|
|
if (str == NULL) {
|
|
strcpy(buffer, "inet_ntop failed\n");
|
|
return HV_E_FAIL;
|
|
}
|
|
if (*offset == 0)
|
|
strcpy(buffer, tmp);
|
|
else {
|
|
strcat(buffer, ";");
|
|
strcat(buffer, tmp);
|
|
}
|
|
|
|
*offset += strlen(str) + 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
kvp_get_ip_info(int family, char *if_name, int op,
|
|
void *out_buffer, unsigned int length)
|
|
{
|
|
struct ifaddrs *ifap;
|
|
struct ifaddrs *curp;
|
|
int offset = 0;
|
|
int sn_offset = 0;
|
|
int error = 0;
|
|
char *buffer;
|
|
struct hv_kvp_ipaddr_value *ip_buffer;
|
|
char cidr_mask[5]; /* /xyz */
|
|
int weight;
|
|
int i;
|
|
unsigned int *w;
|
|
char *sn_str;
|
|
struct sockaddr_in6 *addr6;
|
|
|
|
if (op == KVP_OP_ENUMERATE) {
|
|
buffer = out_buffer;
|
|
} else {
|
|
ip_buffer = out_buffer;
|
|
buffer = (char *)ip_buffer->ip_addr;
|
|
ip_buffer->addr_family = 0;
|
|
}
|
|
/*
|
|
* On entry into this function, the buffer is capable of holding the
|
|
* maximum key value.
|
|
*/
|
|
|
|
if (getifaddrs(&ifap)) {
|
|
strcpy(buffer, "getifaddrs failed\n");
|
|
return HV_E_FAIL;
|
|
}
|
|
|
|
curp = ifap;
|
|
while (curp != NULL) {
|
|
if (curp->ifa_addr == NULL) {
|
|
curp = curp->ifa_next;
|
|
continue;
|
|
}
|
|
|
|
if ((if_name != NULL) &&
|
|
(strncmp(curp->ifa_name, if_name, strlen(if_name)))) {
|
|
/*
|
|
* We want info about a specific interface;
|
|
* just continue.
|
|
*/
|
|
curp = curp->ifa_next;
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* We only support two address families: AF_INET and AF_INET6.
|
|
* If a family value of 0 is specified, we collect both
|
|
* supported address families; if not we gather info on
|
|
* the specified address family.
|
|
*/
|
|
if ((((family != 0) &&
|
|
(curp->ifa_addr->sa_family != family))) ||
|
|
(curp->ifa_flags & IFF_LOOPBACK)) {
|
|
curp = curp->ifa_next;
|
|
continue;
|
|
}
|
|
if ((curp->ifa_addr->sa_family != AF_INET) &&
|
|
(curp->ifa_addr->sa_family != AF_INET6)) {
|
|
curp = curp->ifa_next;
|
|
continue;
|
|
}
|
|
|
|
if (op == KVP_OP_GET_IP_INFO) {
|
|
/*
|
|
* Gather info other than the IP address.
|
|
* IP address info will be gathered later.
|
|
*/
|
|
if (curp->ifa_addr->sa_family == AF_INET) {
|
|
ip_buffer->addr_family |= ADDR_FAMILY_IPV4;
|
|
/*
|
|
* Get subnet info.
|
|
*/
|
|
error = kvp_process_ip_address(
|
|
curp->ifa_netmask,
|
|
AF_INET,
|
|
(char *)
|
|
ip_buffer->sub_net,
|
|
length,
|
|
&sn_offset);
|
|
if (error)
|
|
goto gather_ipaddr;
|
|
} else {
|
|
ip_buffer->addr_family |= ADDR_FAMILY_IPV6;
|
|
|
|
/*
|
|
* Get subnet info in CIDR format.
|
|
*/
|
|
weight = 0;
|
|
sn_str = (char *)ip_buffer->sub_net;
|
|
addr6 = (struct sockaddr_in6 *)
|
|
curp->ifa_netmask;
|
|
w = addr6->sin6_addr.s6_addr32;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
weight += hweight32(&w[i]);
|
|
|
|
sprintf(cidr_mask, "/%d", weight);
|
|
if (length < sn_offset + strlen(cidr_mask) + 1)
|
|
goto gather_ipaddr;
|
|
|
|
if (sn_offset == 0)
|
|
strcpy(sn_str, cidr_mask);
|
|
else {
|
|
strcat((char *)ip_buffer->sub_net, ";");
|
|
strcat(sn_str, cidr_mask);
|
|
}
|
|
sn_offset += strlen(sn_str) + 1;
|
|
}
|
|
|
|
/*
|
|
* Collect other ip related configuration info.
|
|
*/
|
|
|
|
kvp_get_ipconfig_info(if_name, ip_buffer);
|
|
}
|
|
|
|
gather_ipaddr:
|
|
error = kvp_process_ip_address(curp->ifa_addr,
|
|
curp->ifa_addr->sa_family,
|
|
buffer,
|
|
length, &offset);
|
|
if (error)
|
|
goto getaddr_done;
|
|
|
|
curp = curp->ifa_next;
|
|
}
|
|
|
|
getaddr_done:
|
|
freeifaddrs(ifap);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Retrieve the IP given the MAC address.
|
|
*/
|
|
static int kvp_mac_to_ip(struct hv_kvp_ipaddr_value *kvp_ip_val)
|
|
{
|
|
char *mac = (char *)kvp_ip_val->adapter_id;
|
|
DIR *dir;
|
|
struct dirent *entry;
|
|
FILE *file;
|
|
char *p, *x;
|
|
char *if_name = NULL;
|
|
char buf[256];
|
|
char dev_id[PATH_MAX];
|
|
unsigned int i;
|
|
int error = HV_E_FAIL;
|
|
|
|
dir = opendir(KVP_NET_DIR);
|
|
if (dir == NULL)
|
|
return HV_E_FAIL;
|
|
|
|
while ((entry = readdir(dir)) != NULL) {
|
|
/*
|
|
* Set the state for the next pass.
|
|
*/
|
|
snprintf(dev_id, sizeof(dev_id), "%s%s/address", KVP_NET_DIR,
|
|
entry->d_name);
|
|
|
|
file = fopen(dev_id, "r");
|
|
if (file == NULL)
|
|
continue;
|
|
|
|
p = fgets(buf, sizeof(buf), file);
|
|
fclose(file);
|
|
if (!p)
|
|
continue;
|
|
|
|
x = strchr(p, '\n');
|
|
if (x)
|
|
*x = '\0';
|
|
|
|
for (i = 0; i < strlen(p); i++)
|
|
p[i] = toupper(p[i]);
|
|
|
|
if (strcmp(p, mac))
|
|
continue;
|
|
|
|
/*
|
|
* Found the MAC match.
|
|
* A NIC (e.g. VF) matching the MAC, but without IP, is skipped.
|
|
*/
|
|
if_name = entry->d_name;
|
|
if (!if_name)
|
|
continue;
|
|
|
|
error = kvp_get_ip_info(0, if_name, KVP_OP_GET_IP_INFO,
|
|
kvp_ip_val, MAX_IP_ADDR_SIZE * 2);
|
|
|
|
if (!error && strlen((char *)kvp_ip_val->ip_addr))
|
|
break;
|
|
}
|
|
|
|
closedir(dir);
|
|
return error;
|
|
}
|
|
|
|
static int expand_ipv6(char *addr, int type)
|
|
{
|
|
int ret;
|
|
struct in6_addr v6_addr;
|
|
|
|
ret = inet_pton(AF_INET6, addr, &v6_addr);
|
|
|
|
if (ret != 1) {
|
|
if (type == NETMASK)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
sprintf(addr, "%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:"
|
|
"%02x%02x:%02x%02x:%02x%02x",
|
|
(int)v6_addr.s6_addr[0], (int)v6_addr.s6_addr[1],
|
|
(int)v6_addr.s6_addr[2], (int)v6_addr.s6_addr[3],
|
|
(int)v6_addr.s6_addr[4], (int)v6_addr.s6_addr[5],
|
|
(int)v6_addr.s6_addr[6], (int)v6_addr.s6_addr[7],
|
|
(int)v6_addr.s6_addr[8], (int)v6_addr.s6_addr[9],
|
|
(int)v6_addr.s6_addr[10], (int)v6_addr.s6_addr[11],
|
|
(int)v6_addr.s6_addr[12], (int)v6_addr.s6_addr[13],
|
|
(int)v6_addr.s6_addr[14], (int)v6_addr.s6_addr[15]);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
static int is_ipv4(char *addr)
|
|
{
|
|
int ret;
|
|
struct in_addr ipv4_addr;
|
|
|
|
ret = inet_pton(AF_INET, addr, &ipv4_addr);
|
|
|
|
if (ret == 1)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int parse_ip_val_buffer(char *in_buf, int *offset,
|
|
char *out_buf, int out_len)
|
|
{
|
|
char *x;
|
|
char *start;
|
|
|
|
/*
|
|
* in_buf has sequence of characters that are seperated by
|
|
* the character ';'. The last sequence does not have the
|
|
* terminating ";" character.
|
|
*/
|
|
start = in_buf + *offset;
|
|
|
|
x = strchr(start, ';');
|
|
if (x)
|
|
*x = 0;
|
|
else
|
|
x = start + strlen(start);
|
|
|
|
if (strlen(start) != 0) {
|
|
int i = 0;
|
|
/*
|
|
* Get rid of leading spaces.
|
|
*/
|
|
while (start[i] == ' ')
|
|
i++;
|
|
|
|
if ((x - start) <= out_len) {
|
|
strcpy(out_buf, (start + i));
|
|
*offset += (x - start) + 1;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int kvp_write_file(FILE *f, char *s1, char *s2, char *s3)
|
|
{
|
|
int ret;
|
|
|
|
ret = fprintf(f, "%s%s%s%s\n", s1, s2, "=", s3);
|
|
|
|
if (ret < 0)
|
|
return HV_E_FAIL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int process_ip_string(FILE *f, char *ip_string, int type)
|
|
{
|
|
int error = 0;
|
|
char addr[INET6_ADDRSTRLEN];
|
|
int i = 0;
|
|
int j = 0;
|
|
char str[256];
|
|
char sub_str[13];
|
|
int offset = 0;
|
|
|
|
memset(addr, 0, sizeof(addr));
|
|
|
|
while (parse_ip_val_buffer(ip_string, &offset, addr,
|
|
(MAX_IP_ADDR_SIZE * 2))) {
|
|
|
|
sub_str[0] = 0;
|
|
if (is_ipv4(addr)) {
|
|
switch (type) {
|
|
case IPADDR:
|
|
snprintf(str, sizeof(str), "%s", "IPADDR");
|
|
break;
|
|
case NETMASK:
|
|
snprintf(str, sizeof(str), "%s", "NETMASK");
|
|
break;
|
|
case GATEWAY:
|
|
snprintf(str, sizeof(str), "%s", "GATEWAY");
|
|
break;
|
|
case DNS:
|
|
snprintf(str, sizeof(str), "%s", "DNS");
|
|
break;
|
|
}
|
|
|
|
if (type == DNS) {
|
|
snprintf(sub_str, sizeof(sub_str), "%d", ++i);
|
|
} else if (type == GATEWAY && i == 0) {
|
|
++i;
|
|
} else {
|
|
snprintf(sub_str, sizeof(sub_str), "%d", i++);
|
|
}
|
|
|
|
|
|
} else if (expand_ipv6(addr, type)) {
|
|
switch (type) {
|
|
case IPADDR:
|
|
snprintf(str, sizeof(str), "%s", "IPV6ADDR");
|
|
break;
|
|
case NETMASK:
|
|
snprintf(str, sizeof(str), "%s", "IPV6NETMASK");
|
|
break;
|
|
case GATEWAY:
|
|
snprintf(str, sizeof(str), "%s",
|
|
"IPV6_DEFAULTGW");
|
|
break;
|
|
case DNS:
|
|
snprintf(str, sizeof(str), "%s", "DNS");
|
|
break;
|
|
}
|
|
|
|
if (type == DNS) {
|
|
snprintf(sub_str, sizeof(sub_str), "%d", ++i);
|
|
} else if (j == 0) {
|
|
++j;
|
|
} else {
|
|
snprintf(sub_str, sizeof(sub_str), "_%d", j++);
|
|
}
|
|
} else {
|
|
return HV_INVALIDARG;
|
|
}
|
|
|
|
error = kvp_write_file(f, str, sub_str, addr);
|
|
if (error)
|
|
return error;
|
|
memset(addr, 0, sizeof(addr));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int kvp_set_ip_info(char *if_name, struct hv_kvp_ipaddr_value *new_val)
|
|
{
|
|
int error = 0;
|
|
char if_file[PATH_MAX];
|
|
FILE *file;
|
|
char cmd[PATH_MAX];
|
|
char *mac_addr;
|
|
int str_len;
|
|
|
|
/*
|
|
* Set the configuration for the specified interface with
|
|
* the information provided. Since there is no standard
|
|
* way to configure an interface, we will have an external
|
|
* script that does the job of configuring the interface and
|
|
* flushing the configuration.
|
|
*
|
|
* The parameters passed to this external script are:
|
|
* 1. A configuration file that has the specified configuration.
|
|
*
|
|
* We will embed the name of the interface in the configuration
|
|
* file: ifcfg-ethx (where ethx is the interface name).
|
|
*
|
|
* The information provided here may be more than what is needed
|
|
* in a given distro to configure the interface and so are free
|
|
* ignore information that may not be relevant.
|
|
*
|
|
* Here is the format of the ip configuration file:
|
|
*
|
|
* HWADDR=macaddr
|
|
* DEVICE=interface name
|
|
* BOOTPROTO=<protocol> (where <protocol> is "dhcp" if DHCP is configured
|
|
* or "none" if no boot-time protocol should be used)
|
|
*
|
|
* IPADDR0=ipaddr1
|
|
* IPADDR1=ipaddr2
|
|
* IPADDRx=ipaddry (where y = x + 1)
|
|
*
|
|
* NETMASK0=netmask1
|
|
* NETMASKx=netmasky (where y = x + 1)
|
|
*
|
|
* GATEWAY=ipaddr1
|
|
* GATEWAYx=ipaddry (where y = x + 1)
|
|
*
|
|
* DNSx=ipaddrx (where first DNS address is tagged as DNS1 etc)
|
|
*
|
|
* IPV6 addresses will be tagged as IPV6ADDR, IPV6 gateway will be
|
|
* tagged as IPV6_DEFAULTGW and IPV6 NETMASK will be tagged as
|
|
* IPV6NETMASK.
|
|
*
|
|
* The host can specify multiple ipv4 and ipv6 addresses to be
|
|
* configured for the interface. Furthermore, the configuration
|
|
* needs to be persistent. A subsequent GET call on the interface
|
|
* is expected to return the configuration that is set via the SET
|
|
* call.
|
|
*/
|
|
|
|
snprintf(if_file, sizeof(if_file), "%s%s%s", KVP_CONFIG_LOC,
|
|
"/ifcfg-", if_name);
|
|
|
|
file = fopen(if_file, "w");
|
|
|
|
if (file == NULL) {
|
|
syslog(LOG_ERR, "Failed to open config file; error: %d %s",
|
|
errno, strerror(errno));
|
|
return HV_E_FAIL;
|
|
}
|
|
|
|
/*
|
|
* First write out the MAC address.
|
|
*/
|
|
|
|
mac_addr = kvp_if_name_to_mac(if_name);
|
|
if (mac_addr == NULL) {
|
|
error = HV_E_FAIL;
|
|
goto setval_error;
|
|
}
|
|
|
|
error = kvp_write_file(file, "HWADDR", "", mac_addr);
|
|
free(mac_addr);
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
error = kvp_write_file(file, "DEVICE", "", if_name);
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
/*
|
|
* The dhcp_enabled flag is only for IPv4. In the case the host only
|
|
* injects an IPv6 address, the flag is true, but we still need to
|
|
* proceed to parse and pass the IPv6 information to the
|
|
* disto-specific script hv_set_ifconfig.
|
|
*/
|
|
if (new_val->dhcp_enabled) {
|
|
error = kvp_write_file(file, "BOOTPROTO", "", "dhcp");
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
} else {
|
|
error = kvp_write_file(file, "BOOTPROTO", "", "none");
|
|
if (error)
|
|
goto setval_error;
|
|
}
|
|
|
|
/*
|
|
* Write the configuration for ipaddress, netmask, gateway and
|
|
* name servers.
|
|
*/
|
|
|
|
error = process_ip_string(file, (char *)new_val->ip_addr, IPADDR);
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
error = process_ip_string(file, (char *)new_val->sub_net, NETMASK);
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
error = process_ip_string(file, (char *)new_val->gate_way, GATEWAY);
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
error = process_ip_string(file, (char *)new_val->dns_addr, DNS);
|
|
if (error)
|
|
goto setval_error;
|
|
|
|
fclose(file);
|
|
|
|
/*
|
|
* Now that we have populated the configuration file,
|
|
* invoke the external script to do its magic.
|
|
*/
|
|
|
|
str_len = snprintf(cmd, sizeof(cmd), KVP_SCRIPTS_PATH "%s %s",
|
|
"hv_set_ifconfig", if_file);
|
|
/*
|
|
* This is a little overcautious, but it's necessary to suppress some
|
|
* false warnings from gcc 8.0.1.
|
|
*/
|
|
if (str_len <= 0 || (unsigned int)str_len >= sizeof(cmd)) {
|
|
syslog(LOG_ERR, "Cmd '%s' (len=%d) may be too long",
|
|
cmd, str_len);
|
|
return HV_E_FAIL;
|
|
}
|
|
|
|
if (system(cmd)) {
|
|
syslog(LOG_ERR, "Failed to execute cmd '%s'; error: %d %s",
|
|
cmd, errno, strerror(errno));
|
|
return HV_E_FAIL;
|
|
}
|
|
return 0;
|
|
|
|
setval_error:
|
|
syslog(LOG_ERR, "Failed to write config file");
|
|
fclose(file);
|
|
return error;
|
|
}
|
|
|
|
|
|
static void
|
|
kvp_get_domain_name(char *buffer, int length)
|
|
{
|
|
struct addrinfo hints, *info ;
|
|
int error = 0;
|
|
|
|
gethostname(buffer, length);
|
|
memset(&hints, 0, sizeof(hints));
|
|
hints.ai_family = AF_INET; /*Get only ipv4 addrinfo. */
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = AI_CANONNAME;
|
|
|
|
error = getaddrinfo(buffer, NULL, &hints, &info);
|
|
if (error != 0) {
|
|
snprintf(buffer, length, "getaddrinfo failed: 0x%x %s",
|
|
error, gai_strerror(error));
|
|
return;
|
|
}
|
|
snprintf(buffer, length, "%s", info->ai_canonname);
|
|
freeaddrinfo(info);
|
|
}
|
|
|
|
void print_usage(char *argv[])
|
|
{
|
|
fprintf(stderr, "Usage: %s [options]\n"
|
|
"Options are:\n"
|
|
" -n, --no-daemon stay in foreground, don't daemonize\n"
|
|
" -h, --help print this help\n", argv[0]);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int kvp_fd, len;
|
|
int error;
|
|
struct pollfd pfd;
|
|
char *p;
|
|
struct hv_kvp_msg hv_msg[1];
|
|
char *key_value;
|
|
char *key_name;
|
|
int op;
|
|
int pool;
|
|
char *if_name;
|
|
struct hv_kvp_ipaddr_value *kvp_ip_val;
|
|
int daemonize = 1, long_index = 0, opt;
|
|
|
|
static struct option long_options[] = {
|
|
{"help", no_argument, 0, 'h' },
|
|
{"no-daemon", no_argument, 0, 'n' },
|
|
{0, 0, 0, 0 }
|
|
};
|
|
|
|
while ((opt = getopt_long(argc, argv, "hn", long_options,
|
|
&long_index)) != -1) {
|
|
switch (opt) {
|
|
case 'n':
|
|
daemonize = 0;
|
|
break;
|
|
case 'h':
|
|
default:
|
|
print_usage(argv);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (daemonize && daemon(1, 0))
|
|
return 1;
|
|
|
|
openlog("KVP", 0, LOG_USER);
|
|
syslog(LOG_INFO, "KVP starting; pid is:%d", getpid());
|
|
|
|
kvp_fd = open("/dev/vmbus/hv_kvp", O_RDWR | O_CLOEXEC);
|
|
|
|
if (kvp_fd < 0) {
|
|
syslog(LOG_ERR, "open /dev/vmbus/hv_kvp failed; error: %d %s",
|
|
errno, strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/*
|
|
* Retrieve OS release information.
|
|
*/
|
|
kvp_get_os_info();
|
|
/*
|
|
* Cache Fully Qualified Domain Name because getaddrinfo takes an
|
|
* unpredictable amount of time to finish.
|
|
*/
|
|
kvp_get_domain_name(full_domain_name, sizeof(full_domain_name));
|
|
|
|
if (kvp_file_init()) {
|
|
syslog(LOG_ERR, "Failed to initialize the pools");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/*
|
|
* Register ourselves with the kernel.
|
|
*/
|
|
hv_msg->kvp_hdr.operation = KVP_OP_REGISTER1;
|
|
len = write(kvp_fd, hv_msg, sizeof(struct hv_kvp_msg));
|
|
if (len != sizeof(struct hv_kvp_msg)) {
|
|
syslog(LOG_ERR, "registration to kernel failed; error: %d %s",
|
|
errno, strerror(errno));
|
|
close(kvp_fd);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
pfd.fd = kvp_fd;
|
|
|
|
while (1) {
|
|
pfd.events = POLLIN;
|
|
pfd.revents = 0;
|
|
|
|
if (poll(&pfd, 1, -1) < 0) {
|
|
syslog(LOG_ERR, "poll failed; error: %d %s", errno, strerror(errno));
|
|
if (errno == EINVAL) {
|
|
close(kvp_fd);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
else
|
|
continue;
|
|
}
|
|
|
|
len = read(kvp_fd, hv_msg, sizeof(struct hv_kvp_msg));
|
|
|
|
if (len != sizeof(struct hv_kvp_msg)) {
|
|
syslog(LOG_ERR, "read failed; error:%d %s",
|
|
errno, strerror(errno));
|
|
|
|
close(kvp_fd);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/*
|
|
* We will use the KVP header information to pass back
|
|
* the error from this daemon. So, first copy the state
|
|
* and set the error code to success.
|
|
*/
|
|
op = hv_msg->kvp_hdr.operation;
|
|
pool = hv_msg->kvp_hdr.pool;
|
|
hv_msg->error = HV_S_OK;
|
|
|
|
if ((in_hand_shake) && (op == KVP_OP_REGISTER1)) {
|
|
/*
|
|
* Driver is registering with us; stash away the version
|
|
* information.
|
|
*/
|
|
in_hand_shake = 0;
|
|
p = (char *)hv_msg->body.kvp_register.version;
|
|
lic_version = malloc(strlen(p) + 1);
|
|
if (lic_version) {
|
|
strcpy(lic_version, p);
|
|
syslog(LOG_INFO, "KVP LIC Version: %s",
|
|
lic_version);
|
|
} else {
|
|
syslog(LOG_ERR, "malloc failed");
|
|
}
|
|
continue;
|
|
}
|
|
|
|
switch (op) {
|
|
case KVP_OP_GET_IP_INFO:
|
|
kvp_ip_val = &hv_msg->body.kvp_ip_val;
|
|
|
|
error = kvp_mac_to_ip(kvp_ip_val);
|
|
|
|
if (error)
|
|
hv_msg->error = error;
|
|
|
|
break;
|
|
|
|
case KVP_OP_SET_IP_INFO:
|
|
kvp_ip_val = &hv_msg->body.kvp_ip_val;
|
|
if_name = kvp_get_if_name(
|
|
(char *)kvp_ip_val->adapter_id);
|
|
if (if_name == NULL) {
|
|
/*
|
|
* We could not map the guid to an
|
|
* interface name; return error.
|
|
*/
|
|
hv_msg->error = HV_GUID_NOTFOUND;
|
|
break;
|
|
}
|
|
error = kvp_set_ip_info(if_name, kvp_ip_val);
|
|
if (error)
|
|
hv_msg->error = error;
|
|
|
|
free(if_name);
|
|
break;
|
|
|
|
case KVP_OP_SET:
|
|
if (kvp_key_add_or_modify(pool,
|
|
hv_msg->body.kvp_set.data.key,
|
|
hv_msg->body.kvp_set.data.key_size,
|
|
hv_msg->body.kvp_set.data.value,
|
|
hv_msg->body.kvp_set.data.value_size))
|
|
hv_msg->error = HV_S_CONT;
|
|
break;
|
|
|
|
case KVP_OP_GET:
|
|
if (kvp_get_value(pool,
|
|
hv_msg->body.kvp_set.data.key,
|
|
hv_msg->body.kvp_set.data.key_size,
|
|
hv_msg->body.kvp_set.data.value,
|
|
hv_msg->body.kvp_set.data.value_size))
|
|
hv_msg->error = HV_S_CONT;
|
|
break;
|
|
|
|
case KVP_OP_DELETE:
|
|
if (kvp_key_delete(pool,
|
|
hv_msg->body.kvp_delete.key,
|
|
hv_msg->body.kvp_delete.key_size))
|
|
hv_msg->error = HV_S_CONT;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (op != KVP_OP_ENUMERATE)
|
|
goto kvp_done;
|
|
|
|
/*
|
|
* If the pool is KVP_POOL_AUTO, dynamically generate
|
|
* both the key and the value; if not read from the
|
|
* appropriate pool.
|
|
*/
|
|
if (pool != KVP_POOL_AUTO) {
|
|
if (kvp_pool_enumerate(pool,
|
|
hv_msg->body.kvp_enum_data.index,
|
|
hv_msg->body.kvp_enum_data.data.key,
|
|
HV_KVP_EXCHANGE_MAX_KEY_SIZE,
|
|
hv_msg->body.kvp_enum_data.data.value,
|
|
HV_KVP_EXCHANGE_MAX_VALUE_SIZE))
|
|
hv_msg->error = HV_S_CONT;
|
|
goto kvp_done;
|
|
}
|
|
|
|
key_name = (char *)hv_msg->body.kvp_enum_data.data.key;
|
|
key_value = (char *)hv_msg->body.kvp_enum_data.data.value;
|
|
|
|
switch (hv_msg->body.kvp_enum_data.index) {
|
|
case FullyQualifiedDomainName:
|
|
strcpy(key_value, full_domain_name);
|
|
strcpy(key_name, "FullyQualifiedDomainName");
|
|
break;
|
|
case IntegrationServicesVersion:
|
|
strcpy(key_name, "IntegrationServicesVersion");
|
|
strcpy(key_value, lic_version);
|
|
break;
|
|
case NetworkAddressIPv4:
|
|
kvp_get_ip_info(AF_INET, NULL, KVP_OP_ENUMERATE,
|
|
key_value, HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
|
|
strcpy(key_name, "NetworkAddressIPv4");
|
|
break;
|
|
case NetworkAddressIPv6:
|
|
kvp_get_ip_info(AF_INET6, NULL, KVP_OP_ENUMERATE,
|
|
key_value, HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
|
|
strcpy(key_name, "NetworkAddressIPv6");
|
|
break;
|
|
case OSBuildNumber:
|
|
strcpy(key_value, os_build);
|
|
strcpy(key_name, "OSBuildNumber");
|
|
break;
|
|
case OSName:
|
|
strcpy(key_value, os_name);
|
|
strcpy(key_name, "OSName");
|
|
break;
|
|
case OSMajorVersion:
|
|
strcpy(key_value, os_major);
|
|
strcpy(key_name, "OSMajorVersion");
|
|
break;
|
|
case OSMinorVersion:
|
|
strcpy(key_value, os_minor);
|
|
strcpy(key_name, "OSMinorVersion");
|
|
break;
|
|
case OSVersion:
|
|
strcpy(key_value, os_version);
|
|
strcpy(key_name, "OSVersion");
|
|
break;
|
|
case ProcessorArchitecture:
|
|
strcpy(key_value, processor_arch);
|
|
strcpy(key_name, "ProcessorArchitecture");
|
|
break;
|
|
default:
|
|
hv_msg->error = HV_S_CONT;
|
|
break;
|
|
}
|
|
|
|
/* Send the value back to the kernel. */
|
|
kvp_done:
|
|
len = write(kvp_fd, hv_msg, sizeof(struct hv_kvp_msg));
|
|
if (len != sizeof(struct hv_kvp_msg)) {
|
|
syslog(LOG_ERR, "write failed; error: %d %s", errno,
|
|
strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
close(kvp_fd);
|
|
exit(0);
|
|
}
|