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-rw-r--r--tools/hv/hv_kvp_daemon.c1542
1 files changed, 1392 insertions, 150 deletions
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 11224eddcdc..4088b816a3e 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -26,29 +26,23 @@
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/utsname.h>
-#include <linux/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
+#include <ctype.h>
#include <errno.h>
#include <arpa/inet.h>
#include <linux/connector.h>
+#include <linux/hyperv.h>
#include <linux/netlink.h>
#include <ifaddrs.h>
#include <netdb.h>
#include <syslog.h>
-
-/*
- * KYS: TODO. Need to register these in the kernel.
- *
- * The following definitions are shared with the in-kernel component; do not
- * change any of this without making the corresponding changes in
- * the KVP kernel component.
- */
-#define CN_KVP_IDX 0x9 /* MSFT KVP functionality */
-#define CN_KVP_VAL 0x1 /* This supports queries from the kernel */
-#define CN_KVP_USER_VAL 0x2 /* This supports queries from the user */
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <net/if.h>
/*
* KVP protocol: The user mode component first registers with the
@@ -60,25 +54,8 @@
* We use this infrastructure for also supporting queries from user mode
* application for state that may be maintained in the KVP kernel component.
*
- * XXXKYS: Have a shared header file between the user and kernel (TODO)
*/
-enum kvp_op {
- KVP_REGISTER = 0, /* Register the user mode component*/
- KVP_KERNEL_GET, /*Kernel is requesting the value for the specified key*/
- KVP_KERNEL_SET, /*Kernel is providing the value for the specified key*/
- KVP_USER_GET, /*User is requesting the value for the specified key*/
- KVP_USER_SET /*User is providing the value for the specified key*/
-};
-
-#define HV_KVP_EXCHANGE_MAX_KEY_SIZE 512
-#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE 2048
-
-struct hv_ku_msg {
- __u32 kvp_index;
- __u8 kvp_key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; /* Key name */
- __u8 kvp_value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; /* Key value */
-};
enum key_index {
FullyQualifiedDomainName = 0,
@@ -93,29 +70,405 @@ enum key_index {
ProcessorArchitecture
};
-/*
- * End of shared definitions.
- */
-static char kvp_send_buffer[4096];
-static char kvp_recv_buffer[4096];
+enum {
+ IPADDR = 0,
+ NETMASK,
+ GATEWAY,
+ DNS
+};
+
static struct sockaddr_nl addr;
+static int in_hand_shake = 1;
static char *os_name = "";
static char *os_major = "";
static char *os_minor = "";
static char *processor_arch;
static char *os_build;
-static char *lic_version;
+static char *os_version;
+static char *lic_version = "Unknown version";
+static char full_domain_name[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
static struct utsname uts_buf;
+/*
+ * The location of the interface configuration file.
+ */
+
+#define KVP_CONFIG_LOC "/var/lib/hyperv"
+
+#define MAX_FILE_NAME 100
+#define ENTRIES_PER_BLOCK 50
+
+#ifndef SOL_NETLINK
+#define SOL_NETLINK 270
+#endif
+
+struct kvp_record {
+ char key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
+ char value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
+};
+
+struct kvp_file_state {
+ int fd;
+ int num_blocks;
+ struct kvp_record *records;
+ int num_records;
+ char fname[MAX_FILE_NAME];
+};
+
+static struct kvp_file_state kvp_file_info[KVP_POOL_COUNT];
+
+static void kvp_acquire_lock(int pool)
+{
+ struct flock fl = {F_WRLCK, SEEK_SET, 0, 0, 0};
+ fl.l_pid = getpid();
+
+ if (fcntl(kvp_file_info[pool].fd, F_SETLKW, &fl) == -1) {
+ syslog(LOG_ERR, "Failed to acquire the lock pool: %d; error: %d %s", pool,
+ errno, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+}
+
+static void kvp_release_lock(int pool)
+{
+ struct flock fl = {F_UNLCK, SEEK_SET, 0, 0, 0};
+ fl.l_pid = getpid();
+
+ if (fcntl(kvp_file_info[pool].fd, F_SETLK, &fl) == -1) {
+ syslog(LOG_ERR, "Failed to release the lock pool: %d; error: %d %s", pool,
+ errno, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+}
+
+static void kvp_update_file(int pool)
+{
+ FILE *filep;
+ size_t bytes_written;
+
+ /*
+ * We are going to write our in-memory registry out to
+ * disk; acquire the lock first.
+ */
+ kvp_acquire_lock(pool);
+
+ filep = fopen(kvp_file_info[pool].fname, "we");
+ if (!filep) {
+ syslog(LOG_ERR, "Failed to open file, pool: %d; error: %d %s", pool,
+ errno, strerror(errno));
+ kvp_release_lock(pool);
+ exit(EXIT_FAILURE);
+ }
+
+ bytes_written = fwrite(kvp_file_info[pool].records,
+ sizeof(struct kvp_record),
+ kvp_file_info[pool].num_records, filep);
+
+ if (ferror(filep) || fclose(filep)) {
+ kvp_release_lock(pool);
+ syslog(LOG_ERR, "Failed to write file, pool: %d", pool);
+ exit(EXIT_FAILURE);
+ }
+
+ kvp_release_lock(pool);
+}
+
+static void kvp_update_mem_state(int pool)
+{
+ FILE *filep;
+ size_t records_read = 0;
+ struct kvp_record *record = kvp_file_info[pool].records;
+ struct kvp_record *readp;
+ int num_blocks = kvp_file_info[pool].num_blocks;
+ int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK;
+
+ kvp_acquire_lock(pool);
+
+ filep = fopen(kvp_file_info[pool].fname, "re");
+ if (!filep) {
+ syslog(LOG_ERR, "Failed to open file, pool: %d; error: %d %s", pool,
+ errno, strerror(errno));
+ kvp_release_lock(pool);
+ exit(EXIT_FAILURE);
+ }
+ for (;;) {
+ readp = &record[records_read];
+ records_read += fread(readp, sizeof(struct kvp_record),
+ ENTRIES_PER_BLOCK * num_blocks,
+ filep);
+
+ if (ferror(filep)) {
+ syslog(LOG_ERR, "Failed to read file, pool: %d", pool);
+ exit(EXIT_FAILURE);
+ }
+
+ if (!feof(filep)) {
+ /*
+ * We have more data to read.
+ */
+ num_blocks++;
+ record = realloc(record, alloc_unit * num_blocks);
+
+ if (record == NULL) {
+ syslog(LOG_ERR, "malloc failed");
+ exit(EXIT_FAILURE);
+ }
+ continue;
+ }
+ break;
+ }
+
+ kvp_file_info[pool].num_blocks = num_blocks;
+ kvp_file_info[pool].records = record;
+ kvp_file_info[pool].num_records = records_read;
+
+ fclose(filep);
+ kvp_release_lock(pool);
+}
+static int kvp_file_init(void)
+{
+ int fd;
+ FILE *filep;
+ size_t records_read;
+ char *fname;
+ struct kvp_record *record;
+ struct kvp_record *readp;
+ int num_blocks;
+ int i;
+ int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK;
+
+ if (access(KVP_CONFIG_LOC, F_OK)) {
+ if (mkdir(KVP_CONFIG_LOC, 0755 /* rwxr-xr-x */)) {
+ syslog(LOG_ERR, "Failed to create '%s'; error: %d %s", KVP_CONFIG_LOC,
+ errno, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ for (i = 0; i < KVP_POOL_COUNT; i++) {
+ fname = kvp_file_info[i].fname;
+ records_read = 0;
+ num_blocks = 1;
+ sprintf(fname, "%s/.kvp_pool_%d", KVP_CONFIG_LOC, i);
+ fd = open(fname, O_RDWR | O_CREAT | O_CLOEXEC, 0644 /* rw-r--r-- */);
+
+ if (fd == -1)
+ return 1;
+
+
+ filep = fopen(fname, "re");
+ if (!filep) {
+ close(fd);
+ return 1;
+ }
+
+ record = malloc(alloc_unit * num_blocks);
+ if (record == NULL) {
+ fclose(filep);
+ close(fd);
+ return 1;
+ }
+ for (;;) {
+ readp = &record[records_read];
+ records_read += fread(readp, sizeof(struct kvp_record),
+ ENTRIES_PER_BLOCK,
+ filep);
+
+ if (ferror(filep)) {
+ syslog(LOG_ERR, "Failed to read file, pool: %d",
+ i);
+ exit(EXIT_FAILURE);
+ }
+
+ if (!feof(filep)) {
+ /*
+ * We have more data to read.
+ */
+ num_blocks++;
+ record = realloc(record, alloc_unit *
+ num_blocks);
+ if (record == NULL) {
+ fclose(filep);
+ close(fd);
+ return 1;
+ }
+ continue;
+ }
+ break;
+ }
+ kvp_file_info[i].fd = fd;
+ kvp_file_info[i].num_blocks = num_blocks;
+ kvp_file_info[i].records = record;
+ kvp_file_info[i].num_records = records_read;
+ fclose(filep);
+
+ }
+
+ return 0;
+}
+
+static int kvp_key_delete(int pool, const char *key, int key_size)
+{
+ int i;
+ int j, k;
+ int num_records;
+ struct kvp_record *record;
+
+ /*
+ * First update the in-memory state.
+ */
+ kvp_update_mem_state(pool);
+
+ num_records = kvp_file_info[pool].num_records;
+ record = kvp_file_info[pool].records;
+
+ for (i = 0; i < num_records; i++) {
+ if (memcmp(key, record[i].key, key_size))
+ continue;
+ /*
+ * Found a match; just move the remaining
+ * entries up.
+ */
+ if (i == num_records) {
+ kvp_file_info[pool].num_records--;
+ kvp_update_file(pool);
+ return 0;
+ }
+
+ j = i;
+ k = j + 1;
+ for (; k < num_records; k++) {
+ strcpy(record[j].key, record[k].key);
+ strcpy(record[j].value, record[k].value);
+ j++;
+ }
+
+ kvp_file_info[pool].num_records--;
+ kvp_update_file(pool);
+ return 0;
+ }
+ return 1;
+}
+
+static int kvp_key_add_or_modify(int pool, const char *key, int key_size, const char *value,
+ int value_size)
+{
+ int i;
+ int num_records;
+ struct kvp_record *record;
+ int num_blocks;
+
+ if ((key_size > HV_KVP_EXCHANGE_MAX_KEY_SIZE) ||
+ (value_size > HV_KVP_EXCHANGE_MAX_VALUE_SIZE))
+ return 1;
+
+ /*
+ * First update the in-memory state.
+ */
+ kvp_update_mem_state(pool);
+
+ num_records = kvp_file_info[pool].num_records;
+ record = kvp_file_info[pool].records;
+ num_blocks = kvp_file_info[pool].num_blocks;
+
+ for (i = 0; i < num_records; i++) {
+ if (memcmp(key, record[i].key, key_size))
+ continue;
+ /*
+ * Found a match; just update the value -
+ * this is the modify case.
+ */
+ memcpy(record[i].value, value, value_size);
+ kvp_update_file(pool);
+ return 0;
+ }
+
+ /*
+ * Need to add a new entry;
+ */
+ if (num_records == (ENTRIES_PER_BLOCK * num_blocks)) {
+ /* Need to allocate a larger array for reg entries. */
+ record = realloc(record, sizeof(struct kvp_record) *
+ ENTRIES_PER_BLOCK * (num_blocks + 1));
+
+ if (record == NULL)
+ return 1;
+ kvp_file_info[pool].num_blocks++;
+
+ }
+ memcpy(record[i].value, value, value_size);
+ memcpy(record[i].key, key, key_size);
+ kvp_file_info[pool].records = record;
+ kvp_file_info[pool].num_records++;
+ kvp_update_file(pool);
+ return 0;
+}
+
+static int kvp_get_value(int pool, const char *key, int key_size, char *value,
+ int value_size)
+{
+ int i;
+ int num_records;
+ struct kvp_record *record;
+
+ if ((key_size > HV_KVP_EXCHANGE_MAX_KEY_SIZE) ||
+ (value_size > HV_KVP_EXCHANGE_MAX_VALUE_SIZE))
+ return 1;
+
+ /*
+ * First update the in-memory state.
+ */
+ kvp_update_mem_state(pool);
+
+ num_records = kvp_file_info[pool].num_records;
+ record = kvp_file_info[pool].records;
+
+ for (i = 0; i < num_records; i++) {
+ if (memcmp(key, record[i].key, key_size))
+ continue;
+ /*
+ * Found a match; just copy the value out.
+ */
+ memcpy(value, record[i].value, value_size);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int kvp_pool_enumerate(int pool, int index, char *key, int key_size,
+ char *value, int value_size)
+{
+ struct kvp_record *record;
+
+ /*
+ * First update our in-memory database.
+ */
+ kvp_update_mem_state(pool);
+ record = kvp_file_info[pool].records;
+
+ if (index >= kvp_file_info[pool].num_records) {
+ return 1;
+ }
+
+ memcpy(key, record[index].key, key_size);
+ memcpy(value, record[index].value, value_size);
+ return 0;
+}
+
+
void kvp_get_os_info(void)
{
FILE *file;
char *p, buf[512];
uname(&uts_buf);
- os_build = uts_buf.release;
+ os_version = uts_buf.release;
+ os_build = strdup(uts_buf.release);
+
+ os_name = uts_buf.sysname;
processor_arch = uts_buf.machine;
/*
@@ -123,24 +476,74 @@ void kvp_get_os_info(void)
* string to be of the form: x.y.z
* Strip additional information we may have.
*/
- p = strchr(os_build, '-');
+ p = strchr(os_version, '-');
if (p)
*p = '\0';
+ /*
+ * Parse the /etc/os-release file if present:
+ * http://www.freedesktop.org/software/systemd/man/os-release.html
+ */
+ file = fopen("/etc/os-release", "r");
+ if (file != NULL) {
+ while (fgets(buf, sizeof(buf), file)) {
+ char *value, *q;
+
+ /* Ignore comments */
+ if (buf[0] == '#')
+ continue;
+
+ /* Split into name=value */
+ p = strchr(buf, '=');
+ if (!p)
+ continue;
+ *p++ = 0;
+
+ /* Remove quotes and newline; un-escape */
+ value = p;
+ q = p;
+ while (*p) {
+ if (*p == '\\') {
+ ++p;
+ if (!*p)
+ break;
+ *q++ = *p++;
+ } else if (*p == '\'' || *p == '"' ||
+ *p == '\n') {
+ ++p;
+ } else {
+ *q++ = *p++;
+ }
+ }
+ *q = 0;
+
+ if (!strcmp(buf, "NAME")) {
+ p = strdup(value);
+ if (!p)
+ break;
+ os_name = p;
+ } else if (!strcmp(buf, "VERSION_ID")) {
+ p = strdup(value);
+ if (!p)
+ break;
+ os_major = p;
+ }
+ }
+ fclose(file);
+ return;
+ }
+
+ /* Fallback for older RH/SUSE releases */
file = fopen("/etc/SuSE-release", "r");
if (file != NULL)
goto kvp_osinfo_found;
file = fopen("/etc/redhat-release", "r");
if (file != NULL)
goto kvp_osinfo_found;
- /*
- * Add code for other supported platforms.
- */
/*
* We don't have information about the os.
*/
- os_name = uts_buf.sysname;
return;
kvp_osinfo_found:
@@ -184,82 +587,465 @@ done:
return;
}
+
+
+/*
+ * Retrieve an interface name corresponding to the specified guid.
+ * If there is a match, the function returns a pointer
+ * to the interface name and if not, a NULL is returned.
+ * If a match is found, the caller is responsible for
+ * freeing the memory.
+ */
+
+static char *kvp_get_if_name(char *guid)
+{
+ DIR *dir;
+ struct dirent *entry;
+ FILE *file;
+ char *p, *q, *x;
+ char *if_name = NULL;
+ char buf[256];
+ char *kvp_net_dir = "/sys/class/net/";
+ char dev_id[256];
+
+ dir = opendir(kvp_net_dir);
+ if (dir == NULL)
+ return NULL;
+
+ snprintf(dev_id, sizeof(dev_id), "%s", kvp_net_dir);
+ q = dev_id + strlen(kvp_net_dir);
+
+ while ((entry = readdir(dir)) != NULL) {
+ /*
+ * Set the state for the next pass.
+ */
+ *q = '\0';
+ strcat(dev_id, entry->d_name);
+ strcat(dev_id, "/device/device_id");
+
+ 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[256];
+ int i;
+ char *mac_addr = NULL;
+
+ snprintf(addr_file, sizeof(addr_file), "%s%s%s", "/sys/class/net/",
+ 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;
+}
+
+
+/*
+ * Retrieve the interface name given tha MAC address.
+ */
+
+static char *kvp_mac_to_if_name(char *mac)
+{
+ DIR *dir;
+ struct dirent *entry;
+ FILE *file;
+ char *p, *q, *x;
+ char *if_name = NULL;
+ char buf[256];
+ char *kvp_net_dir = "/sys/class/net/";
+ char dev_id[256];
+ int i;
+
+ dir = opendir(kvp_net_dir);
+ if (dir == NULL)
+ return NULL;
+
+ snprintf(dev_id, sizeof(dev_id), kvp_net_dir);
+ q = dev_id + strlen(kvp_net_dir);
+
+ while ((entry = readdir(dir)) != NULL) {
+ /*
+ * Set the state for the next pass.
+ */
+ *q = '\0';
+
+ strcat(dev_id, entry->d_name);
+ strcat(dev_id, "/address");
+
+ 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';
+
+ for (i = 0; i < strlen(p); i++)
+ p[i] = toupper(p[i]);
+
+ if (!strcmp(p, mac)) {
+ /*
+ * Found the MAC 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;
+}
+
+
+static void kvp_process_ipconfig_file(char *cmd,
+ char *config_buf, 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, "%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, "%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_address(int family, char *buffer, int length)
+kvp_get_ip_info(int family, char *if_name, int op,
+ void *out_buffer, int length)
{
struct ifaddrs *ifap;
struct ifaddrs *curp;
- int ipv4_len = strlen("255.255.255.255") + 1;
- int ipv6_len = strlen("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")+1;
int offset = 0;
- const char *str;
- char tmp[50];
+ 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 (2048 bytes).
+ * maximum key value.
*/
if (getifaddrs(&ifap)) {
strcpy(buffer, "getifaddrs failed\n");
- return 1;
+ return HV_E_FAIL;
}
curp = ifap;
while (curp != NULL) {
- if ((curp->ifa_addr != NULL) &&
- (curp->ifa_addr->sa_family == family)) {
- if (family == AF_INET) {
- struct sockaddr_in *addr =
- (struct sockaddr_in *) curp->ifa_addr;
-
- str = inet_ntop(family, &addr->sin_addr,
- tmp, 50);
- if (str == NULL) {
- strcpy(buffer, "inet_ntop failed\n");
- error = 1;
- goto getaddr_done;
- }
- if (offset == 0)
- strcpy(buffer, tmp);
- else
- strcat(buffer, tmp);
- strcat(buffer, ";");
+ if (curp->ifa_addr == NULL) {
+ curp = curp->ifa_next;
+ continue;
+ }
- offset += strlen(str) + 1;
- if ((length - offset) < (ipv4_len + 1))
- goto getaddr_done;
+ 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;
+ }
- } else {
+ /*
+ * 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) {
/*
- * We only support AF_INET and AF_INET6
- * and the list of addresses is separated by a ";".
+ * Gather info other than the IP address.
+ * IP address info will be gathered later.
*/
- struct sockaddr_in6 *addr =
- (struct sockaddr_in6 *) curp->ifa_addr;
-
- str = inet_ntop(family,
- &addr->sin6_addr.s6_addr,
- tmp, 50);
- if (str == NULL) {
- strcpy(buffer, "inet_ntop failed\n");
- error = 1;
- goto getaddr_done;
- }
- if (offset == 0)
- strcpy(buffer, tmp);
- else
- strcat(buffer, tmp);
- strcat(buffer, ";");
- offset += strlen(str) + 1;
- if ((length - offset) < (ipv6_len + 1))
- goto getaddr_done;
+ 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;
}
@@ -269,7 +1055,319 @@ getaddr_done:
}
-static int
+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[10];
+ 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[128];
+ FILE *file;
+ char cmd[512];
+ char *mac_addr;
+
+ /*
+ * 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;
+
+ if (new_val->dhcp_enabled) {
+ error = kvp_write_file(file, "BOOTPROTO", "", "dhcp");
+ if (error)
+ goto setval_error;
+
+ /*
+ * We are done!.
+ */
+ goto setval_done;
+
+ } 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;
+
+setval_done:
+ fclose(file);
+
+ /*
+ * Now that we have populated the configuration file,
+ * invoke the external script to do its magic.
+ */
+
+ snprintf(cmd, sizeof(cmd), "%s %s", "hv_set_ifconfig", if_file);
+ 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 ;
@@ -283,34 +1381,29 @@ kvp_get_domain_name(char *buffer, int length)
error = getaddrinfo(buffer, NULL, &hints, &info);
if (error != 0) {
- strcpy(buffer, "getaddrinfo failed\n");
- return error;
+ snprintf(buffer, length, "getaddrinfo failed: 0x%x %s",
+ error, gai_strerror(error));
+ return;
}
- strcpy(buffer, info->ai_canonname);
+ snprintf(buffer, length, "%s", info->ai_canonname);
freeaddrinfo(info);
- return error;
}
static int
netlink_send(int fd, struct cn_msg *msg)
{
- struct nlmsghdr *nlh;
+ struct nlmsghdr nlh = { .nlmsg_type = NLMSG_DONE };
unsigned int size;
struct msghdr message;
- char buffer[64];
struct iovec iov[2];
- size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len);
+ size = sizeof(struct cn_msg) + msg->len;
- nlh = (struct nlmsghdr *)buffer;
- nlh->nlmsg_seq = 0;
- nlh->nlmsg_pid = getpid();
- nlh->nlmsg_type = NLMSG_DONE;
- nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh));
- nlh->nlmsg_flags = 0;
+ nlh.nlmsg_pid = getpid();
+ nlh.nlmsg_len = NLMSG_LENGTH(size);
- iov[0].iov_base = nlh;
- iov[0].iov_len = sizeof(*nlh);
+ iov[0].iov_base = &nlh;
+ iov[0].iov_len = sizeof(nlh);
iov[1].iov_base = msg;
iov[1].iov_len = size;
@@ -326,86 +1419,152 @@ netlink_send(int fd, struct cn_msg *msg)
int main(void)
{
- int fd, len, sock_opt;
+ int fd, len, nl_group;
int error;
struct cn_msg *message;
struct pollfd pfd;
struct nlmsghdr *incoming_msg;
struct cn_msg *incoming_cn_msg;
- struct hv_ku_msg *hv_msg;
+ struct hv_kvp_msg *hv_msg;
char *p;
char *key_value;
char *key_name;
+ int op;
+ int pool;
+ char *if_name;
+ struct hv_kvp_ipaddr_value *kvp_ip_val;
+ char *kvp_recv_buffer;
+ size_t kvp_recv_buffer_len;
- daemon(1, 0);
+ if (daemon(1, 0))
+ return 1;
openlog("KVP", 0, LOG_USER);
syslog(LOG_INFO, "KVP starting; pid is:%d", getpid());
+
+ kvp_recv_buffer_len = NLMSG_LENGTH(0) + sizeof(struct cn_msg) + sizeof(struct hv_kvp_msg);
+ kvp_recv_buffer = calloc(1, kvp_recv_buffer_len);
+ if (!kvp_recv_buffer) {
+ syslog(LOG_ERR, "Failed to allocate netlink buffer");
+ 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);
+ }
fd = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
if (fd < 0) {
- syslog(LOG_ERR, "netlink socket creation failed; error:%d", fd);
- exit(-1);
+ syslog(LOG_ERR, "netlink socket creation failed; error: %d %s", errno,
+ strerror(errno));
+ exit(EXIT_FAILURE);
}
addr.nl_family = AF_NETLINK;
addr.nl_pad = 0;
addr.nl_pid = 0;
- addr.nl_groups = CN_KVP_IDX;
+ addr.nl_groups = 0;
error = bind(fd, (struct sockaddr *)&addr, sizeof(addr));
if (error < 0) {
- syslog(LOG_ERR, "bind failed; error:%d", error);
+ syslog(LOG_ERR, "bind failed; error: %d %s", errno, strerror(errno));
close(fd);
- exit(-1);
+ exit(EXIT_FAILURE);
}
- sock_opt = addr.nl_groups;
- setsockopt(fd, 270, 1, &sock_opt, sizeof(sock_opt));
+ nl_group = CN_KVP_IDX;
+
+ if (setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group)) < 0) {
+ syslog(LOG_ERR, "setsockopt failed; error: %d %s", errno, strerror(errno));
+ close(fd);
+ exit(EXIT_FAILURE);
+ }
+
/*
* Register ourselves with the kernel.
*/
- message = (struct cn_msg *)kvp_send_buffer;
+ message = (struct cn_msg *)kvp_recv_buffer;
message->id.idx = CN_KVP_IDX;
message->id.val = CN_KVP_VAL;
- message->seq = KVP_REGISTER;
+
+ hv_msg = (struct hv_kvp_msg *)message->data;
+ hv_msg->kvp_hdr.operation = KVP_OP_REGISTER1;
message->ack = 0;
- message->len = 0;
+ message->len = sizeof(struct hv_kvp_msg);
len = netlink_send(fd, message);
if (len < 0) {
- syslog(LOG_ERR, "netlink_send failed; error:%d", len);
+ syslog(LOG_ERR, "netlink_send failed; error: %d %s", errno, strerror(errno));
close(fd);
- exit(-1);
+ exit(EXIT_FAILURE);
}
pfd.fd = fd;
while (1) {
+ struct sockaddr *addr_p = (struct sockaddr *) &addr;
+ socklen_t addr_l = sizeof(addr);
pfd.events = POLLIN;
pfd.revents = 0;
- poll(&pfd, 1, -1);
- len = recv(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0);
+ if (poll(&pfd, 1, -1) < 0) {
+ syslog(LOG_ERR, "poll failed; error: %d %s", errno, strerror(errno));
+ if (errno == EINVAL) {
+ close(fd);
+ exit(EXIT_FAILURE);
+ }
+ else
+ continue;
+ }
+
+ len = recvfrom(fd, kvp_recv_buffer, kvp_recv_buffer_len, 0,
+ addr_p, &addr_l);
if (len < 0) {
- syslog(LOG_ERR, "recv failed; error:%d", len);
+ syslog(LOG_ERR, "recvfrom failed; pid:%u error:%d %s",
+ addr.nl_pid, errno, strerror(errno));
close(fd);
return -1;
}
+ if (addr.nl_pid) {
+ syslog(LOG_WARNING, "Received packet from untrusted pid:%u",
+ addr.nl_pid);
+ continue;
+ }
+
incoming_msg = (struct nlmsghdr *)kvp_recv_buffer;
+
+ if (incoming_msg->nlmsg_type != NLMSG_DONE)
+ continue;
+
incoming_cn_msg = (struct cn_msg *)NLMSG_DATA(incoming_msg);
+ hv_msg = (struct hv_kvp_msg *)incoming_cn_msg->data;
- switch (incoming_cn_msg->seq) {
- case KVP_REGISTER:
+ /*
+ * 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.
*/
- p = (char *)incoming_cn_msg->data;
+ 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);
@@ -415,21 +1574,107 @@ int main(void)
syslog(LOG_ERR, "malloc failed");
}
continue;
+ }
+
+ switch (op) {
+ case KVP_OP_GET_IP_INFO:
+ kvp_ip_val = &hv_msg->body.kvp_ip_val;
+ if_name =
+ kvp_mac_to_if_name((char *)kvp_ip_val->adapter_id);
+
+ if (if_name == NULL) {
+ /*
+ * We could not map the mac address to an
+ * interface name; return error.
+ */
+ hv_msg->error = HV_E_FAIL;
+ break;
+ }
+ error = kvp_get_ip_info(
+ 0, if_name, KVP_OP_GET_IP_INFO,
+ kvp_ip_val,
+ (MAX_IP_ADDR_SIZE * 2));
+
+ if (error)
+ hv_msg->error = error;
- case KVP_KERNEL_GET:
+ free(if_name);
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:
- continue;
+ 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;
}
- hv_msg = (struct hv_ku_msg *)incoming_cn_msg->data;
- key_name = (char *)hv_msg->kvp_key;
- key_value = (char *)hv_msg->kvp_value;
+ hv_msg = (struct hv_kvp_msg *)incoming_cn_msg->data;
+ 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->kvp_index) {
+ switch (hv_msg->body.kvp_enum_data.index) {
case FullyQualifiedDomainName:
- kvp_get_domain_name(key_value,
- HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
+ strcpy(key_value, full_domain_name);
strcpy(key_name, "FullyQualifiedDomainName");
break;
case IntegrationServicesVersion:
@@ -437,13 +1682,13 @@ int main(void)
strcpy(key_value, lic_version);
break;
case NetworkAddressIPv4:
- kvp_get_ip_address(AF_INET, key_value,
- HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
+ 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_address(AF_INET6, key_value,
- HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
+ 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:
@@ -463,7 +1708,7 @@ int main(void)
strcpy(key_name, "OSMinorVersion");
break;
case OSVersion:
- strcpy(key_value, os_build);
+ strcpy(key_value, os_version);
strcpy(key_name, "OSVersion");
break;
case ProcessorArchitecture:
@@ -471,11 +1716,7 @@ int main(void)
strcpy(key_name, "ProcessorArchitecture");
break;
default:
- strcpy(key_value, "Unknown Key");
- /*
- * We use a null key name to terminate enumeration.
- */
- strcpy(key_name, "");
+ hv_msg->error = HV_S_CONT;
break;
}
/*
@@ -483,17 +1724,18 @@ int main(void)
* already in the receive buffer. Update the cn_msg header to
* reflect the key value that has been added to the message
*/
+kvp_done:
incoming_cn_msg->id.idx = CN_KVP_IDX;
incoming_cn_msg->id.val = CN_KVP_VAL;
- incoming_cn_msg->seq = KVP_USER_SET;
incoming_cn_msg->ack = 0;
- incoming_cn_msg->len = sizeof(struct hv_ku_msg);
+ incoming_cn_msg->len = sizeof(struct hv_kvp_msg);
len = netlink_send(fd, incoming_cn_msg);
if (len < 0) {
- syslog(LOG_ERR, "net_link send failed; error:%d", len);
- exit(-1);
+ syslog(LOG_ERR, "net_link send failed; error: %d %s", errno,
+ strerror(errno));
+ exit(EXIT_FAILURE);
}
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 08:38:45 +0000