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qga: Utilize QAPI_LIST_APPEND in qmp_guest_network_get_interfaces

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I found another spot that can benefit from using our macros instead of
open-coding qapi list creation.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210205171634.1491258-1-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2021-02-05 11:16:34 -06:00 committed by Markus Armbruster
parent d71a243220
commit 96291f1343
1 changed files with 30 additions and 45 deletions
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73
qga/commands-posix.c
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@ -2153,17 +2153,17 @@ void qmp_guest_suspend_hybrid(Error **errp)
guest_suspend(SUSPEND_MODE_HYBRID, errp); guest_suspend(SUSPEND_MODE_HYBRID, errp);
} }
static GuestNetworkInterfaceList * static GuestNetworkInterface *
guest_find_interface(GuestNetworkInterfaceList *head, guest_find_interface(GuestNetworkInterfaceList *head,
const char *name) const char *name)
{ {
for (; head; head = head->next) { for (; head; head = head->next) {
if (strcmp(head->value->name, name) == 0) { if (strcmp(head->value->name, name) == 0) {
break; return head->value;
} }
} }
return head; return NULL;
} }
static int guest_get_network_stats(const char *name, static int guest_get_network_stats(const char *name,
@ -2232,7 +2232,7 @@ static int guest_get_network_stats(const char *name,
*/ */
GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
{ {
GuestNetworkInterfaceList *head = NULL, *cur_item = NULL; GuestNetworkInterfaceList *head = NULL, **tail = &head;
struct ifaddrs *ifap, *ifa; struct ifaddrs *ifap, *ifa;
if (getifaddrs(&ifap) < 0) { if (getifaddrs(&ifap) < 0) {
@ -2241,8 +2241,9 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
} }
for (ifa = ifap; ifa; ifa = ifa->ifa_next) { for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
GuestNetworkInterfaceList *info; GuestNetworkInterface *info;
GuestIpAddressList **address_list = NULL, *address_item = NULL; GuestIpAddressList **address_tail;
GuestIpAddress *address_item = NULL;
GuestNetworkInterfaceStat *interface_stat = NULL; GuestNetworkInterfaceStat *interface_stat = NULL;
char addr4[INET_ADDRSTRLEN]; char addr4[INET_ADDRSTRLEN];
char addr6[INET6_ADDRSTRLEN]; char addr6[INET6_ADDRSTRLEN];
@ -2257,19 +2258,12 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
if (!info) { if (!info) {
info = g_malloc0(sizeof(*info)); info = g_malloc0(sizeof(*info));
info->value = g_malloc0(sizeof(*info->value)); info->name = g_strdup(ifa->ifa_name);
info->value->name = g_strdup(ifa->ifa_name);
if (!cur_item) { QAPI_LIST_APPEND(tail, info);
head = cur_item = info;
} else {
cur_item->next = info;
cur_item = info;
}
} }
if (!info->value->has_hardware_address && if (!info->has_hardware_address && ifa->ifa_flags & SIOCGIFHWADDR) {
ifa->ifa_flags & SIOCGIFHWADDR) {
/* we haven't obtained HW address yet */ /* we haven't obtained HW address yet */
sock = socket(PF_INET, SOCK_STREAM, 0); sock = socket(PF_INET, SOCK_STREAM, 0);
if (sock == -1) { if (sock == -1) {
@ -2278,7 +2272,7 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
} }
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->value->name); pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->name);
if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) { if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) {
error_setg_errno(errp, errno, error_setg_errno(errp, errno,
"failed to get MAC address of %s", "failed to get MAC address of %s",
@ -2290,13 +2284,13 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
close(sock); close(sock);
mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data; mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
info->value->hardware_address = info->hardware_address =
g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
(int) mac_addr[0], (int) mac_addr[1], (int) mac_addr[0], (int) mac_addr[1],
(int) mac_addr[2], (int) mac_addr[3], (int) mac_addr[2], (int) mac_addr[3],
(int) mac_addr[4], (int) mac_addr[5]); (int) mac_addr[4], (int) mac_addr[5]);
info->value->has_hardware_address = true; info->has_hardware_address = true;
} }
if (ifa->ifa_addr && if (ifa->ifa_addr &&
@ -2309,15 +2303,14 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
} }
address_item = g_malloc0(sizeof(*address_item)); address_item = g_malloc0(sizeof(*address_item));
address_item->value = g_malloc0(sizeof(*address_item->value)); address_item->ip_address = g_strdup(addr4);
address_item->value->ip_address = g_strdup(addr4); address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
address_item->value->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
if (ifa->ifa_netmask) { if (ifa->ifa_netmask) {
/* Count the number of set bits in netmask. /* Count the number of set bits in netmask.
* This is safe as '1' and '0' cannot be shuffled in netmask. */ * This is safe as '1' and '0' cannot be shuffled in netmask. */
p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr; p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr;
address_item->value->prefix = ctpop32(((uint32_t *) p)[0]); address_item->prefix = ctpop32(((uint32_t *) p)[0]);
} }
} else if (ifa->ifa_addr && } else if (ifa->ifa_addr &&
ifa->ifa_addr->sa_family == AF_INET6) { ifa->ifa_addr->sa_family == AF_INET6) {
@ -2329,15 +2322,14 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
} }
address_item = g_malloc0(sizeof(*address_item)); address_item = g_malloc0(sizeof(*address_item));
address_item->value = g_malloc0(sizeof(*address_item->value)); address_item->ip_address = g_strdup(addr6);
address_item->value->ip_address = g_strdup(addr6); address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
address_item->value->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
if (ifa->ifa_netmask) { if (ifa->ifa_netmask) {
/* Count the number of set bits in netmask. /* Count the number of set bits in netmask.
* This is safe as '1' and '0' cannot be shuffled in netmask. */ * This is safe as '1' and '0' cannot be shuffled in netmask. */
p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr;
address_item->value->prefix = address_item->prefix =
ctpop32(((uint32_t *) p)[0]) + ctpop32(((uint32_t *) p)[0]) +
ctpop32(((uint32_t *) p)[1]) + ctpop32(((uint32_t *) p)[1]) +
ctpop32(((uint32_t *) p)[2]) + ctpop32(((uint32_t *) p)[2]) +
@ -2349,29 +2341,22 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
continue; continue;
} }
address_list = &info->value->ip_addresses; address_tail = &info->ip_addresses;
while (*address_tail) {
while (*address_list && (*address_list)->next) { address_tail = &(*address_tail)->next;
address_list = &(*address_list)->next;
} }
QAPI_LIST_APPEND(address_tail, address_item);
if (!*address_list) { info->has_ip_addresses = true;
*address_list = address_item;
} else {
(*address_list)->next = address_item;
}
info->value->has_ip_addresses = true; if (!info->has_statistics) {
if (!info->value->has_statistics) {
interface_stat = g_malloc0(sizeof(*interface_stat)); interface_stat = g_malloc0(sizeof(*interface_stat));
if (guest_get_network_stats(info->value->name, if (guest_get_network_stats(info->name, interface_stat) == -1) {
interface_stat) == -1) { info->has_statistics = false;
info->value->has_statistics = false;
g_free(interface_stat); g_free(interface_stat);
} else { } else {
info->value->statistics = interface_stat; info->statistics = interface_stat;
info->value->has_statistics = true; info->has_statistics = true;
} }
} }
} }