diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/hv/hv_kvp_daemon.c | 138 |
1 files changed, 65 insertions, 73 deletions
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 4c99c57736ce..dbf6e8bd98ba 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -634,64 +634,6 @@ static char *kvp_if_name_to_mac(char *if_name) 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, *x; - char *if_name = NULL; - char buf[256]; - char dev_id[PATH_MAX]; - unsigned int i; - - 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/address", 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'; - - 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, unsigned int len, int element_size, int offset) @@ -997,6 +939,70 @@ getaddr_done: 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) { @@ -1472,26 +1478,12 @@ int main(int argc, char *argv[]) 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)); + error = kvp_mac_to_ip(kvp_ip_val); if (error) hv_msg->error = error; - free(if_name); break; case KVP_OP_SET_IP_INFO: |