[PULL 0/7] QGA patches

[PULL 0/7] QGA patches

[marcandre.lureau]

From: Marc-André Lureau <marcandre.lureau@redhat.com>

The following changes since commit 2e3408b3cc7de4e87a9adafc8c19bfce3abec947:

  Merge tag 'misc-pull-request' of gitlab.com:marcandre.lureau/qemu into staging (2022-05-03 09:13:17 -0700)

are available in the Git repository at:

  git@gitlab.com:marcandre.lureau/qemu.git tags/qga-pull-request

for you to fetch changes up to 22668881f3def13e9ffcf16840e5fde974a55b1e:

  qga: Introduce disk smart (2022-05-04 13:03:19 +0400)

----------------------------------------------------------------
QGA Pull request

----------------------------------------------------------------

Andrew Deason (5):
  qga/commands-posix: Use getifaddrs when available
  qga/commands-posix: Fix iface hw address detection
  qga/commands-posix: Fix listing ifaces for Solaris
  qga/commands-posix: Log all net stats failures
  qga/commands-posix: 'guest-shutdown' for Solaris

Zhenwei Pi (2):
  qga: Introduce NVMe disk bus type
  qga: Introduce disk smart

 meson.build          |   1 +
 qga/qapi-schema.json |  56 +++-
 qga/commands-posix.c | 591 ++++++++++++++++++++++++++-----------------
 3 files changed, 413 insertions(+), 235 deletions(-)

-- 
2.36.0.44.g0f828332d5ac

[PULL 1/7] qga/commands-posix: Use getifaddrs when available

[marcandre.lureau]

From: Andrew Deason <adeason@sinenomine.net>

Currently, commands-posix.c assumes that getifaddrs() is only
available on Linux, and so the related guest agent command
guest-network-get-interfaces is only implemented for #ifdef __linux__.
This function does exist on other platforms, though, such as Solaris.
So, add a meson check for getifaddrs(), and move the code for
guest-network-get-interfaces to be built whenever getifaddrs() is
available.

The implementation for guest-network-get-interfaces still has some
Linux-specific code, which is not fixed in this commit. This commit
moves the relevant big chunks of code around without changing them, so
a future commit can change the code in place.

Signed-off-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <20220426195526.7699-2-adeason@sinenomine.net>
---
 meson.build          |   1 +
 qga/commands-posix.c | 474 ++++++++++++++++++++++---------------------
 2 files changed, 246 insertions(+), 229 deletions(-)

diff --git a/meson.build b/meson.build
index 1fe7d257ff89..c26aa442d40e 100644
--- a/meson.build
+++ b/meson.build
@@ -1687,6 +1687,7 @@ config_host_data.set('CONFIG_SYNCFS', cc.has_function('syncfs'))
 config_host_data.set('CONFIG_SYNC_FILE_RANGE', cc.has_function('sync_file_range'))
 config_host_data.set('CONFIG_TIMERFD', cc.has_function('timerfd_create'))
 config_host_data.set('HAVE_COPY_FILE_RANGE', cc.has_function('copy_file_range'))
+config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
 config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 78f2f210015d..8fc56f7d71ac 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -34,10 +34,6 @@
 #if defined(__linux__)
 #include <mntent.h>
 #include <linux/fs.h>
-#include <ifaddrs.h>
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <net/if.h>
 #include <sys/statvfs.h>
 
 #ifdef CONFIG_LIBUDEV
@@ -52,6 +48,17 @@
 #endif
 #endif
 
+#ifdef HAVE_GETIFADDRS
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <sys/types.h>
+#include <ifaddrs.h>
+#ifdef CONFIG_SOLARIS
+#include <sys/sockio.h>
+#endif
+#endif
+
 static void ga_wait_child(pid_t pid, int *status, Error **errp)
 {
     pid_t rpid;
@@ -2133,223 +2140,6 @@ void qmp_guest_suspend_hybrid(Error **errp)
     guest_suspend(SUSPEND_MODE_HYBRID, errp);
 }
 
-static GuestNetworkInterface *
-guest_find_interface(GuestNetworkInterfaceList *head,
-                     const char *name)
-{
-    for (; head; head = head->next) {
-        if (strcmp(head->value->name, name) == 0) {
-            return head->value;
-        }
-    }
-
-    return NULL;
-}
-
-static int guest_get_network_stats(const char *name,
-                       GuestNetworkInterfaceStat *stats)
-{
-    int name_len;
-    char const *devinfo = "/proc/net/dev";
-    FILE *fp;
-    char *line = NULL, *colon;
-    size_t n = 0;
-    fp = fopen(devinfo, "r");
-    if (!fp) {
-        return -1;
-    }
-    name_len = strlen(name);
-    while (getline(&line, &n, fp) != -1) {
-        long long dummy;
-        long long rx_bytes;
-        long long rx_packets;
-        long long rx_errs;
-        long long rx_dropped;
-        long long tx_bytes;
-        long long tx_packets;
-        long long tx_errs;
-        long long tx_dropped;
-        char *trim_line;
-        trim_line = g_strchug(line);
-        if (trim_line[0] == '\0') {
-            continue;
-        }
-        colon = strchr(trim_line, ':');
-        if (!colon) {
-            continue;
-        }
-        if (colon - name_len  == trim_line &&
-           strncmp(trim_line, name, name_len) == 0) {
-            if (sscanf(colon + 1,
-                "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld",
-                  &rx_bytes, &rx_packets, &rx_errs, &rx_dropped,
-                  &dummy, &dummy, &dummy, &dummy,
-                  &tx_bytes, &tx_packets, &tx_errs, &tx_dropped,
-                  &dummy, &dummy, &dummy, &dummy) != 16) {
-                continue;
-            }
-            stats->rx_bytes = rx_bytes;
-            stats->rx_packets = rx_packets;
-            stats->rx_errs = rx_errs;
-            stats->rx_dropped = rx_dropped;
-            stats->tx_bytes = tx_bytes;
-            stats->tx_packets = tx_packets;
-            stats->tx_errs = tx_errs;
-            stats->tx_dropped = tx_dropped;
-            fclose(fp);
-            g_free(line);
-            return 0;
-        }
-    }
-    fclose(fp);
-    g_free(line);
-    g_debug("/proc/net/dev: Interface '%s' not found", name);
-    return -1;
-}
-
-/*
- * Build information about guest interfaces
- */
-GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
-{
-    GuestNetworkInterfaceList *head = NULL, **tail = &head;
-    struct ifaddrs *ifap, *ifa;
-
-    if (getifaddrs(&ifap) < 0) {
-        error_setg_errno(errp, errno, "getifaddrs failed");
-        goto error;
-    }
-
-    for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
-        GuestNetworkInterface *info;
-        GuestIpAddressList **address_tail;
-        GuestIpAddress *address_item = NULL;
-        GuestNetworkInterfaceStat *interface_stat = NULL;
-        char addr4[INET_ADDRSTRLEN];
-        char addr6[INET6_ADDRSTRLEN];
-        int sock;
-        struct ifreq ifr;
-        unsigned char *mac_addr;
-        void *p;
-
-        g_debug("Processing %s interface", ifa->ifa_name);
-
-        info = guest_find_interface(head, ifa->ifa_name);
-
-        if (!info) {
-            info = g_malloc0(sizeof(*info));
-            info->name = g_strdup(ifa->ifa_name);
-
-            QAPI_LIST_APPEND(tail, info);
-        }
-
-        if (!info->has_hardware_address && ifa->ifa_flags & SIOCGIFHWADDR) {
-            /* we haven't obtained HW address yet */
-            sock = socket(PF_INET, SOCK_STREAM, 0);
-            if (sock == -1) {
-                error_setg_errno(errp, errno, "failed to create socket");
-                goto error;
-            }
-
-            memset(&ifr, 0, sizeof(ifr));
-            pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->name);
-            if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) {
-                error_setg_errno(errp, errno,
-                                 "failed to get MAC address of %s",
-                                 ifa->ifa_name);
-                close(sock);
-                goto error;
-            }
-
-            close(sock);
-            mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
-
-            info->hardware_address =
-                g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
-                                (int) mac_addr[0], (int) mac_addr[1],
-                                (int) mac_addr[2], (int) mac_addr[3],
-                                (int) mac_addr[4], (int) mac_addr[5]);
-
-            info->has_hardware_address = true;
-        }
-
-        if (ifa->ifa_addr &&
-            ifa->ifa_addr->sa_family == AF_INET) {
-            /* interface with IPv4 address */
-            p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr;
-            if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) {
-                error_setg_errno(errp, errno, "inet_ntop failed");
-                goto error;
-            }
-
-            address_item = g_malloc0(sizeof(*address_item));
-            address_item->ip_address = g_strdup(addr4);
-            address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
-
-            if (ifa->ifa_netmask) {
-                /* Count the number of set bits in netmask.
-                 * This is safe as '1' and '0' cannot be shuffled in netmask. */
-                p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr;
-                address_item->prefix = ctpop32(((uint32_t *) p)[0]);
-            }
-        } else if (ifa->ifa_addr &&
-                   ifa->ifa_addr->sa_family == AF_INET6) {
-            /* interface with IPv6 address */
-            p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
-            if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) {
-                error_setg_errno(errp, errno, "inet_ntop failed");
-                goto error;
-            }
-
-            address_item = g_malloc0(sizeof(*address_item));
-            address_item->ip_address = g_strdup(addr6);
-            address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
-
-            if (ifa->ifa_netmask) {
-                /* Count the number of set bits in netmask.
-                 * This is safe as '1' and '0' cannot be shuffled in netmask. */
-                p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr;
-                address_item->prefix =
-                    ctpop32(((uint32_t *) p)[0]) +
-                    ctpop32(((uint32_t *) p)[1]) +
-                    ctpop32(((uint32_t *) p)[2]) +
-                    ctpop32(((uint32_t *) p)[3]);
-            }
-        }
-
-        if (!address_item) {
-            continue;
-        }
-
-        address_tail = &info->ip_addresses;
-        while (*address_tail) {
-            address_tail = &(*address_tail)->next;
-        }
-        QAPI_LIST_APPEND(address_tail, address_item);
-
-        info->has_ip_addresses = true;
-
-        if (!info->has_statistics) {
-            interface_stat = g_malloc0(sizeof(*interface_stat));
-            if (guest_get_network_stats(info->name, interface_stat) == -1) {
-                info->has_statistics = false;
-                g_free(interface_stat);
-            } else {
-                info->statistics = interface_stat;
-                info->has_statistics = true;
-            }
-        }
-    }
-
-    freeifaddrs(ifap);
-    return head;
-
-error:
-    freeifaddrs(ifap);
-    qapi_free_GuestNetworkInterfaceList(head);
-    return NULL;
-}
-
 /* Transfer online/offline status between @vcpu and the guest system.
  *
  * On input either @errp or *@errp must be NULL.
@@ -2919,12 +2709,6 @@ void qmp_guest_suspend_hybrid(Error **errp)
     error_setg(errp, QERR_UNSUPPORTED);
 }
 
-GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
-{
-    error_setg(errp, QERR_UNSUPPORTED);
-    return NULL;
-}
-
 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
 {
     error_setg(errp, QERR_UNSUPPORTED);
@@ -2966,6 +2750,234 @@ GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
 
 #endif
 
+#ifdef HAVE_GETIFADDRS
+static GuestNetworkInterface *
+guest_find_interface(GuestNetworkInterfaceList *head,
+                     const char *name)
+{
+    for (; head; head = head->next) {
+        if (strcmp(head->value->name, name) == 0) {
+            return head->value;
+        }
+    }
+
+    return NULL;
+}
+
+static int guest_get_network_stats(const char *name,
+                       GuestNetworkInterfaceStat *stats)
+{
+    int name_len;
+    char const *devinfo = "/proc/net/dev";
+    FILE *fp;
+    char *line = NULL, *colon;
+    size_t n = 0;
+    fp = fopen(devinfo, "r");
+    if (!fp) {
+        return -1;
+    }
+    name_len = strlen(name);
+    while (getline(&line, &n, fp) != -1) {
+        long long dummy;
+        long long rx_bytes;
+        long long rx_packets;
+        long long rx_errs;
+        long long rx_dropped;
+        long long tx_bytes;
+        long long tx_packets;
+        long long tx_errs;
+        long long tx_dropped;
+        char *trim_line;
+        trim_line = g_strchug(line);
+        if (trim_line[0] == '\0') {
+            continue;
+        }
+        colon = strchr(trim_line, ':');
+        if (!colon) {
+            continue;
+        }
+        if (colon - name_len  == trim_line &&
+           strncmp(trim_line, name, name_len) == 0) {
+            if (sscanf(colon + 1,
+                "%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld",
+                  &rx_bytes, &rx_packets, &rx_errs, &rx_dropped,
+                  &dummy, &dummy, &dummy, &dummy,
+                  &tx_bytes, &tx_packets, &tx_errs, &tx_dropped,
+                  &dummy, &dummy, &dummy, &dummy) != 16) {
+                continue;
+            }
+            stats->rx_bytes = rx_bytes;
+            stats->rx_packets = rx_packets;
+            stats->rx_errs = rx_errs;
+            stats->rx_dropped = rx_dropped;
+            stats->tx_bytes = tx_bytes;
+            stats->tx_packets = tx_packets;
+            stats->tx_errs = tx_errs;
+            stats->tx_dropped = tx_dropped;
+            fclose(fp);
+            g_free(line);
+            return 0;
+        }
+    }
+    fclose(fp);
+    g_free(line);
+    g_debug("/proc/net/dev: Interface '%s' not found", name);
+    return -1;
+}
+
+/*
+ * Build information about guest interfaces
+ */
+GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
+{
+    GuestNetworkInterfaceList *head = NULL, **tail = &head;
+    struct ifaddrs *ifap, *ifa;
+
+    if (getifaddrs(&ifap) < 0) {
+        error_setg_errno(errp, errno, "getifaddrs failed");
+        goto error;
+    }
+
+    for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
+        GuestNetworkInterface *info;
+        GuestIpAddressList **address_tail;
+        GuestIpAddress *address_item = NULL;
+        GuestNetworkInterfaceStat *interface_stat = NULL;
+        char addr4[INET_ADDRSTRLEN];
+        char addr6[INET6_ADDRSTRLEN];
+        int sock;
+        struct ifreq ifr;
+        unsigned char *mac_addr;
+        void *p;
+
+        g_debug("Processing %s interface", ifa->ifa_name);
+
+        info = guest_find_interface(head, ifa->ifa_name);
+
+        if (!info) {
+            info = g_malloc0(sizeof(*info));
+            info->name = g_strdup(ifa->ifa_name);
+
+            QAPI_LIST_APPEND(tail, info);
+        }
+
+        if (!info->has_hardware_address && ifa->ifa_flags & SIOCGIFHWADDR) {
+            /* we haven't obtained HW address yet */
+            sock = socket(PF_INET, SOCK_STREAM, 0);
+            if (sock == -1) {
+                error_setg_errno(errp, errno, "failed to create socket");
+                goto error;
+            }
+
+            memset(&ifr, 0, sizeof(ifr));
+            pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->name);
+            if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) {
+                error_setg_errno(errp, errno,
+                                 "failed to get MAC address of %s",
+                                 ifa->ifa_name);
+                close(sock);
+                goto error;
+            }
+
+            close(sock);
+            mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
+
+            info->hardware_address =
+                g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
+                                (int) mac_addr[0], (int) mac_addr[1],
+                                (int) mac_addr[2], (int) mac_addr[3],
+                                (int) mac_addr[4], (int) mac_addr[5]);
+
+            info->has_hardware_address = true;
+        }
+
+        if (ifa->ifa_addr &&
+            ifa->ifa_addr->sa_family == AF_INET) {
+            /* interface with IPv4 address */
+            p = &((struct sockaddr_in *)ifa->ifa_addr)->sin_addr;
+            if (!inet_ntop(AF_INET, p, addr4, sizeof(addr4))) {
+                error_setg_errno(errp, errno, "inet_ntop failed");
+                goto error;
+            }
+
+            address_item = g_malloc0(sizeof(*address_item));
+            address_item->ip_address = g_strdup(addr4);
+            address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
+
+            if (ifa->ifa_netmask) {
+                /* Count the number of set bits in netmask.
+                 * This is safe as '1' and '0' cannot be shuffled in netmask. */
+                p = &((struct sockaddr_in *)ifa->ifa_netmask)->sin_addr;
+                address_item->prefix = ctpop32(((uint32_t *) p)[0]);
+            }
+        } else if (ifa->ifa_addr &&
+                   ifa->ifa_addr->sa_family == AF_INET6) {
+            /* interface with IPv6 address */
+            p = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
+            if (!inet_ntop(AF_INET6, p, addr6, sizeof(addr6))) {
+                error_setg_errno(errp, errno, "inet_ntop failed");
+                goto error;
+            }
+
+            address_item = g_malloc0(sizeof(*address_item));
+            address_item->ip_address = g_strdup(addr6);
+            address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
+
+            if (ifa->ifa_netmask) {
+                /* Count the number of set bits in netmask.
+                 * This is safe as '1' and '0' cannot be shuffled in netmask. */
+                p = &((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr;
+                address_item->prefix =
+                    ctpop32(((uint32_t *) p)[0]) +
+                    ctpop32(((uint32_t *) p)[1]) +
+                    ctpop32(((uint32_t *) p)[2]) +
+                    ctpop32(((uint32_t *) p)[3]);
+            }
+        }
+
+        if (!address_item) {
+            continue;
+        }
+
+        address_tail = &info->ip_addresses;
+        while (*address_tail) {
+            address_tail = &(*address_tail)->next;
+        }
+        QAPI_LIST_APPEND(address_tail, address_item);
+
+        info->has_ip_addresses = true;
+
+        if (!info->has_statistics) {
+            interface_stat = g_malloc0(sizeof(*interface_stat));
+            if (guest_get_network_stats(info->name, interface_stat) == -1) {
+                info->has_statistics = false;
+                g_free(interface_stat);
+            } else {
+                info->statistics = interface_stat;
+                info->has_statistics = true;
+            }
+        }
+    }
+
+    freeifaddrs(ifap);
+    return head;
+
+error:
+    freeifaddrs(ifap);
+    qapi_free_GuestNetworkInterfaceList(head);
+    return NULL;
+}
+
+#else
+
+GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+#endif /* HAVE_GETIFADDRS */
+
 #if !defined(CONFIG_FSFREEZE)
 
 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
@@ -3028,8 +3040,7 @@ GList *ga_command_blacklist_init(GList *blacklist)
     {
         const char *list[] = {
             "guest-suspend-disk", "guest-suspend-ram",
-            "guest-suspend-hybrid", "guest-network-get-interfaces",
-            "guest-get-vcpus", "guest-set-vcpus",
+            "guest-suspend-hybrid", "guest-get-vcpus", "guest-set-vcpus",
             "guest-get-memory-blocks", "guest-set-memory-blocks",
             "guest-get-memory-block-size", "guest-get-memory-block-info",
             NULL};
@@ -3041,6 +3052,11 @@ GList *ga_command_blacklist_init(GList *blacklist)
     }
 #endif
 
+#if !defined(HAVE_GETIFADDRS)
+    blacklist = g_list_append(blacklist,
+                              g_strdup("guest-network-get-interfaces"));
+#endif
+
 #if !defined(CONFIG_FSFREEZE)
     {
         const char *list[] = {
-- 
2.36.0.44.g0f828332d5ac

[PULL 2/7] qga/commands-posix: Fix iface hw address detection

[marcandre.lureau]

From: Andrew Deason <adeason@sinenomine.net>

Since its introduction in commit 3424fc9f16a1 ("qemu-ga: add
guest-network-get-interfaces command"), guest-network-get-interfaces
seems to check if a given interface has a hardware address by checking
'ifa->ifa_flags & SIOCGIFHWADDR'. But ifa_flags is a field for IFF_*
flags (IFF_UP, IFF_LOOPBACK, etc), and comparing it to an ioctl like
SIOCGIFHWADDR doesn't make sense.

On Linux, this isn't a big deal, since SIOCGIFHWADDR has so many bits
set (0x8927), 'ifa->ifa_flags & SIOCGIFHWADDR' will usually have a
nonzero result for any 'normal'-looking interfaces: anything with
IFF_UP (0x1) or IFF_BROADCAST (0x2) set, as well as several
less-common flags. This means we'll try to get the hardware address
for most/all interfaces, even those that don't really have one (like
the loopback device). For those interfaces, Linux just returns a
hardware address of all zeroes.

On Solaris, however, trying to get the hardware address for a loopback
device returns an EADDRNOTAVAIL error. This causes us to return an
error and the entire guest-network-get-interfaces call fails.

Change this logic to always try to get the hardware address for each
interface, and don't return an error if we fail to get it. Instead,
just don't include the 'hardware-address' field in the result if we
can't get the hardware address.

Signed-off-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <20220426195526.7699-3-adeason@sinenomine.net>
---
 qga/commands-posix.c | 39 ++++++++++++++++++++++++---------------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 8fc56f7d71ac..febb2ef0ffd6 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -2861,7 +2861,7 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
             QAPI_LIST_APPEND(tail, info);
         }
 
-        if (!info->has_hardware_address && ifa->ifa_flags & SIOCGIFHWADDR) {
+        if (!info->has_hardware_address) {
             /* we haven't obtained HW address yet */
             sock = socket(PF_INET, SOCK_STREAM, 0);
             if (sock == -1) {
@@ -2872,23 +2872,32 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
             memset(&ifr, 0, sizeof(ifr));
             pstrcpy(ifr.ifr_name, IF_NAMESIZE, info->name);
             if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) {
-                error_setg_errno(errp, errno,
-                                 "failed to get MAC address of %s",
-                                 ifa->ifa_name);
-                close(sock);
-                goto error;
-            }
+                /*
+                 * We can't get the hw addr of this interface, but that's not a
+                 * fatal error. Don't set info->hardware_address, but keep
+                 * going.
+                 */
+                if (errno == EADDRNOTAVAIL) {
+                    /* The interface doesn't have a hw addr (e.g. loopback). */
+                    g_debug("failed to get MAC address of %s: %s",
+                            ifa->ifa_name, strerror(errno));
+                } else{
+                    g_warning("failed to get MAC address of %s: %s",
+                              ifa->ifa_name, strerror(errno));
+                }
 
-            close(sock);
-            mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
+            } else {
+                mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
 
-            info->hardware_address =
-                g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
-                                (int) mac_addr[0], (int) mac_addr[1],
-                                (int) mac_addr[2], (int) mac_addr[3],
-                                (int) mac_addr[4], (int) mac_addr[5]);
+                info->hardware_address =
+                    g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
+                                    (int) mac_addr[0], (int) mac_addr[1],
+                                    (int) mac_addr[2], (int) mac_addr[3],
+                                    (int) mac_addr[4], (int) mac_addr[5]);
 
-            info->has_hardware_address = true;
+                info->has_hardware_address = true;
+            }
+            close(sock);
         }
 
         if (ifa->ifa_addr &&
-- 
2.36.0.44.g0f828332d5ac

[PULL 3/7] qga/commands-posix: Fix listing ifaces for Solaris

[marcandre.lureau]

From: Andrew Deason <adeason@sinenomine.net>

The code for guest-network-get-interfaces needs a couple of small
adjustments for Solaris:

- The results from SIOCGIFHWADDR are documented as being in ifr_addr,
  not ifr_hwaddr (ifr_hwaddr doesn't exist on Solaris).

- The implementation of guest_get_network_stats is Linux-specific, so
  hide it under #ifdef CONFIG_LINUX. On non-Linux, we just won't
  provide network interface stats.

Signed-off-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <20220426195526.7699-4-adeason@sinenomine.net>
---
 qga/commands-posix.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index febb2ef0ffd6..c1e994f3e6ab 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -2767,6 +2767,7 @@ guest_find_interface(GuestNetworkInterfaceList *head,
 static int guest_get_network_stats(const char *name,
                        GuestNetworkInterfaceStat *stats)
 {
+#ifdef CONFIG_LINUX
     int name_len;
     char const *devinfo = "/proc/net/dev";
     FILE *fp;
@@ -2822,6 +2823,7 @@ static int guest_get_network_stats(const char *name,
     fclose(fp);
     g_free(line);
     g_debug("/proc/net/dev: Interface '%s' not found", name);
+#endif /* CONFIG_LINUX */
     return -1;
 }
 
@@ -2887,8 +2889,11 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
                 }
 
             } else {
+#ifdef CONFIG_SOLARIS
+                mac_addr = (unsigned char *) &ifr.ifr_addr.sa_data;
+#else
                 mac_addr = (unsigned char *) &ifr.ifr_hwaddr.sa_data;
-
+#endif
                 info->hardware_address =
                     g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
                                     (int) mac_addr[0], (int) mac_addr[1],
-- 
2.36.0.44.g0f828332d5ac

[PULL 4/7] qga/commands-posix: Log all net stats failures

[marcandre.lureau]

From: Andrew Deason <adeason@sinenomine.net>

guest_get_network_stats can silently fail in a couple of ways. Add
debug messages to these cases, so we're never completely silent on
failure.

Signed-off-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220426195526.7699-5-adeason@sinenomine.net>
---
 qga/commands-posix.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index c1e994f3e6ab..ee997a58f21c 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -2775,6 +2775,8 @@ static int guest_get_network_stats(const char *name,
     size_t n = 0;
     fp = fopen(devinfo, "r");
     if (!fp) {
+        g_debug("failed to open network stats %s: %s", devinfo,
+                g_strerror(errno));
         return -1;
     }
     name_len = strlen(name);
@@ -2823,7 +2825,9 @@ static int guest_get_network_stats(const char *name,
     fclose(fp);
     g_free(line);
     g_debug("/proc/net/dev: Interface '%s' not found", name);
-#endif /* CONFIG_LINUX */
+#else /* !CONFIG_LINUX */
+    g_debug("Network stats reporting available only for Linux");
+#endif /* !CONFIG_LINUX */
     return -1;
 }
 
-- 
2.36.0.44.g0f828332d5ac

[PULL 5/7] qga/commands-posix: 'guest-shutdown' for Solaris

[marcandre.lureau]

From: Andrew Deason <adeason@sinenomine.net>

On Solaris, instead of the -P, -H, and -r flags, we need to provide
the target init state to the 'shutdown' command: state 5 is poweroff,
0 is halt, and 6 is reboot. We also need to pass -g0 to avoid the
default 60-second delay, and -y to avoid a confirmation prompt.

Implement this logic under an #ifdef CONFIG_SOLARIS, so the
'guest-shutdown' command works properly on Solaris.

Signed-off-by: Andrew Deason <adeason@sinenomine.net>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220426195526.7699-6-adeason@sinenomine.net>
---
 qga/commands-posix.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index ee997a58f21c..7ab8d5eb3c69 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -85,13 +85,23 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
     pid_t pid;
     int status;
 
+#ifdef CONFIG_SOLARIS
+    const char *powerdown_flag = "-i5";
+    const char *halt_flag = "-i0";
+    const char *reboot_flag = "-i6";
+#else
+    const char *powerdown_flag = "-P";
+    const char *halt_flag = "-H";
+    const char *reboot_flag = "-r";
+#endif
+
     slog("guest-shutdown called, mode: %s", mode);
     if (!has_mode || strcmp(mode, "powerdown") == 0) {
-        shutdown_flag = "-P";
+        shutdown_flag = powerdown_flag;
     } else if (strcmp(mode, "halt") == 0) {
-        shutdown_flag = "-H";
+        shutdown_flag = halt_flag;
     } else if (strcmp(mode, "reboot") == 0) {
-        shutdown_flag = "-r";
+        shutdown_flag = reboot_flag;
     } else {
         error_setg(errp,
                    "mode is invalid (valid values are: halt|powerdown|reboot");
@@ -106,8 +116,13 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
         reopen_fd_to_null(1);
         reopen_fd_to_null(2);
 
+#ifdef CONFIG_SOLARIS
+        execl("/sbin/shutdown", "shutdown", shutdown_flag, "-g0", "-y",
+              "hypervisor initiated shutdown", (char *)NULL);
+#else
         execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
                "hypervisor initiated shutdown", (char *)NULL);
+#endif
         _exit(EXIT_FAILURE);
     } else if (pid < 0) {
         error_setg_errno(errp, errno, "failed to create child process");
-- 
2.36.0.44.g0f828332d5ac

[PULL 6/7] qga: Introduce NVMe disk bus type

[marcandre.lureau]

From: zhenwei pi <pizhenwei@bytedance.com>

Assigning a NVMe disk by VFIO or emulating a NVMe controller by QEMU,
a NVMe disk get exposed in guest side. Support NVMe disk bus type and
implement posix version.

Test PCI passthrough case:
~#virsh qemu-agent-command buster '{"execute":"guest-get-disks"}' | jq
  ...
    {
      "name": "/dev/nvme0n1",
      "dependencies": [],
      "partition": false,
      "address": {
        "serial": "SAMSUNG MZQL23T8HCLS-00A07_S64HNE0N500076",
        "bus-type": "nvme",
        "bus": 0,
        "unit": 0,
        "pci-controller": {
          "bus": 0,
          "slot": 22,
          "domain": 0,
          "function": 0
        },
        "dev": "/dev/nvme0n1",
        "target": 0
      }
  ...

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20220420022610.418052-2-pizhenwei@bytedance.com>
---
 qga/qapi-schema.json | 3 ++-
 qga/commands-posix.c | 5 ++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 94e4aacdcc65..5ea76cfd1d73 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -827,13 +827,14 @@
 # @mmc: Win multimedia card (MMC) bus type
 # @virtual: Win virtual bus type
 # @file-backed-virtual: Win file-backed bus type
+# @nvme: NVMe disks (since 7.1)
 #
 # Since: 2.2; 'Unknown' and all entries below since 2.4
 ##
 { 'enum': 'GuestDiskBusType',
   'data': [ 'ide', 'fdc', 'scsi', 'virtio', 'xen', 'usb', 'uml', 'sata',
             'sd', 'unknown', 'ieee1394', 'ssa', 'fibre', 'raid', 'iscsi',
-            'sas', 'mmc', 'virtual', 'file-backed-virtual' ] }
+            'sas', 'mmc', 'virtual', 'file-backed-virtual', 'nvme' ] }
 
 
 ##
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 7ab8d5eb3c69..a5fbae00e90c 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -890,7 +890,8 @@ static bool build_guest_fsinfo_for_pci_dev(char const *syspath,
         if (driver && (g_str_equal(driver, "ata_piix") ||
                        g_str_equal(driver, "sym53c8xx") ||
                        g_str_equal(driver, "virtio-pci") ||
-                       g_str_equal(driver, "ahci"))) {
+                       g_str_equal(driver, "ahci") ||
+                       g_str_equal(driver, "nvme"))) {
             break;
         }
 
@@ -985,6 +986,8 @@ static bool build_guest_fsinfo_for_pci_dev(char const *syspath,
             g_debug("no host for '%s' (driver '%s')", syspath, driver);
             goto cleanup;
         }
+    } else if (strcmp(driver, "nvme") == 0) {
+        disk->bus_type = GUEST_DISK_BUS_TYPE_NVME;
     } else {
         g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath);
         goto cleanup;
-- 
2.36.0.44.g0f828332d5ac

[PULL 7/7] qga: Introduce disk smart

[marcandre.lureau]

From: zhenwei pi <pizhenwei@bytedance.com>

After assigning a NVMe/SCSI controller to guest by VFIO, we lose
everything on the host side. A guest uses these devices exclusively,
we usually don't care the actions on these devices. But there is a
low probability that hitting physical hardware warning, we need a
chance to get the basic smart log info.

Introduce disk smart, and implement NVMe smart on linux.

Thanks to Keith and Marc-André.

CC: Keith Busch <kbusch@kernel.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20220420022610.418052-3-pizhenwei@bytedance.com>
---
 qga/qapi-schema.json | 53 +++++++++++++++++++++++++++++++-
 qga/commands-posix.c | 73 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 125 insertions(+), 1 deletion(-)

diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
index 5ea76cfd1d73..4d8e506c9e86 100644
--- a/qga/qapi-schema.json
+++ b/qga/qapi-schema.json
@@ -888,6 +888,55 @@
            '*serial': 'str', '*dev': 'str',
            '*ccw-address': 'GuestCCWAddress'} }
 
+##
+# @GuestNVMeSmart:
+#
+# NVMe smart informations, based on NVMe specification,
+# section <SMART / Health Information (Log Identifier 02h)>
+#
+# Since: 7.1
+##
+{ 'struct': 'GuestNVMeSmart',
+  'data': {'critical-warning': 'int',
+           'temperature': 'int',
+           'available-spare': 'int',
+           'available-spare-threshold': 'int',
+           'percentage-used': 'int',
+           'data-units-read-lo': 'uint64',
+           'data-units-read-hi': 'uint64',
+           'data-units-written-lo': 'uint64',
+           'data-units-written-hi': 'uint64',
+           'host-read-commands-lo': 'uint64',
+           'host-read-commands-hi': 'uint64',
+           'host-write-commands-lo': 'uint64',
+           'host-write-commands-hi': 'uint64',
+           'controller-busy-time-lo': 'uint64',
+           'controller-busy-time-hi': 'uint64',
+           'power-cycles-lo': 'uint64',
+           'power-cycles-hi': 'uint64',
+           'power-on-hours-lo': 'uint64',
+           'power-on-hours-hi': 'uint64',
+           'unsafe-shutdowns-lo': 'uint64',
+           'unsafe-shutdowns-hi': 'uint64',
+           'media-errors-lo': 'uint64',
+           'media-errors-hi': 'uint64',
+           'number-of-error-log-entries-lo': 'uint64',
+           'number-of-error-log-entries-hi': 'uint64' } }
+
+##
+# @GuestDiskSmart:
+#
+# Disk type related smart information.
+#
+# - @nvme: NVMe disk smart
+#
+# Since: 7.1
+##
+{ 'union': 'GuestDiskSmart',
+  'base': { 'type': 'GuestDiskBusType' },
+  'discriminator': 'type',
+  'data': { 'nvme': 'GuestNVMeSmart' } }
+
 ##
 # @GuestDiskInfo:
 #
@@ -899,12 +948,14 @@
 # @address: disk address information (only for non-virtual devices)
 # @alias: optional alias assigned to the disk, on Linux this is a name assigned
 #         by device mapper
+# @smart: disk smart information (Since 7.1)
 #
 # Since 5.2
 ##
 { 'struct': 'GuestDiskInfo',
   'data': {'name': 'str', 'partition': 'bool', '*dependencies': ['str'],
-           '*address': 'GuestDiskAddress', '*alias': 'str'} }
+           '*address': 'GuestDiskAddress', '*alias': 'str',
+           '*smart': 'GuestDiskSmart'} }
 
 ##
 # @guest-get-disks:
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index a5fbae00e90c..69f209af87e6 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -26,6 +26,7 @@
 #include "qemu/base64.h"
 #include "qemu/cutils.h"
 #include "commands-common.h"
+#include "block/nvme.h"
 
 #ifdef HAVE_UTMPX
 #include <utmpx.h>
@@ -35,6 +36,7 @@
 #include <mntent.h>
 #include <linux/fs.h>
 #include <sys/statvfs.h>
+#include <linux/nvme_ioctl.h>
 
 #ifdef CONFIG_LIBUDEV
 #include <libudev.h>
@@ -1391,6 +1393,76 @@ static GuestDiskInfoList *get_disk_partitions(
     return ret;
 }
 
+static void get_nvme_smart(GuestDiskInfo *disk)
+{
+    int fd;
+    GuestNVMeSmart *smart;
+    NvmeSmartLog log = {0};
+    struct nvme_admin_cmd cmd = {
+        .opcode = NVME_ADM_CMD_GET_LOG_PAGE,
+        .nsid = NVME_NSID_BROADCAST,
+        .addr = (uintptr_t)&log,
+        .data_len = sizeof(log),
+        .cdw10 = NVME_LOG_SMART_INFO | (1 << 15) /* RAE bit */
+                 | (((sizeof(log) >> 2) - 1) << 16)
+    };
+
+    fd = qemu_open_old(disk->name, O_RDONLY);
+    if (fd == -1) {
+        g_debug("Failed to open device: %s: %s", disk->name, g_strerror(errno));
+        return;
+    }
+
+    if (ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd)) {
+        g_debug("Failed to get smart: %s: %s", disk->name, g_strerror(errno));
+        close(fd);
+        return;
+    }
+
+    disk->has_smart = true;
+    disk->smart = g_new0(GuestDiskSmart, 1);
+    disk->smart->type = GUEST_DISK_BUS_TYPE_NVME;
+
+    smart = &disk->smart->u.nvme;
+    smart->critical_warning = log.critical_warning;
+    smart->temperature = lduw_le_p(&log.temperature); /* unaligned field */
+    smart->available_spare = log.available_spare;
+    smart->available_spare_threshold = log.available_spare_threshold;
+    smart->percentage_used = log.percentage_used;
+    smart->data_units_read_lo = le64_to_cpu(log.data_units_read[0]);
+    smart->data_units_read_hi = le64_to_cpu(log.data_units_read[1]);
+    smart->data_units_written_lo = le64_to_cpu(log.data_units_written[0]);
+    smart->data_units_written_hi = le64_to_cpu(log.data_units_written[1]);
+    smart->host_read_commands_lo = le64_to_cpu(log.host_read_commands[0]);
+    smart->host_read_commands_hi = le64_to_cpu(log.host_read_commands[1]);
+    smart->host_write_commands_lo = le64_to_cpu(log.host_write_commands[0]);
+    smart->host_write_commands_hi = le64_to_cpu(log.host_write_commands[1]);
+    smart->controller_busy_time_lo = le64_to_cpu(log.controller_busy_time[0]);
+    smart->controller_busy_time_hi = le64_to_cpu(log.controller_busy_time[1]);
+    smart->power_cycles_lo = le64_to_cpu(log.power_cycles[0]);
+    smart->power_cycles_hi = le64_to_cpu(log.power_cycles[1]);
+    smart->power_on_hours_lo = le64_to_cpu(log.power_on_hours[0]);
+    smart->power_on_hours_hi = le64_to_cpu(log.power_on_hours[1]);
+    smart->unsafe_shutdowns_lo = le64_to_cpu(log.unsafe_shutdowns[0]);
+    smart->unsafe_shutdowns_hi = le64_to_cpu(log.unsafe_shutdowns[1]);
+    smart->media_errors_lo = le64_to_cpu(log.media_errors[0]);
+    smart->media_errors_hi = le64_to_cpu(log.media_errors[1]);
+    smart->number_of_error_log_entries_lo =
+        le64_to_cpu(log.number_of_error_log_entries[0]);
+    smart->number_of_error_log_entries_hi =
+        le64_to_cpu(log.number_of_error_log_entries[1]);
+
+    close(fd);
+}
+
+static void get_disk_smart(GuestDiskInfo *disk)
+{
+    if (disk->has_address
+        && (disk->address->bus_type == GUEST_DISK_BUS_TYPE_NVME)) {
+        get_nvme_smart(disk);
+    }
+}
+
 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
 {
     GuestDiskInfoList *ret = NULL;
@@ -1464,6 +1536,7 @@ GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
         }
 
         get_disk_deps(disk_dir, disk);
+        get_disk_smart(disk);
         ret = get_disk_partitions(ret, de->d_name, disk_dir, dev_name);
     }
 
-- 
2.36.0.44.g0f828332d5ac

Re: [PULL 0/7] QGA patches

[Richard Henderson]

On 5/4/22 03:00, marcandre.lureau@redhat.com wrote:
> From: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> The following changes since commit 2e3408b3cc7de4e87a9adafc8c19bfce3abec947:
> 
>    Merge tag 'misc-pull-request' of gitlab.com:marcandre.lureau/qemu into staging (2022-05-03 09:13:17 -0700)
> 
> are available in the Git repository at:
> 
>    git@gitlab.com:marcandre.lureau/qemu.git tags/qga-pull-request
> 
> for you to fetch changes up to 22668881f3def13e9ffcf16840e5fde974a55b1e:
> 
>    qga: Introduce disk smart (2022-05-04 13:03:19 +0400)
> 
> ----------------------------------------------------------------
> QGA Pull request

Applied, thanks.  Please update https://wiki.qemu.org/ChangeLog/7.1 as appropriate.


r~


> 
> ----------------------------------------------------------------
> 
> Andrew Deason (5):
>    qga/commands-posix: Use getifaddrs when available
>    qga/commands-posix: Fix iface hw address detection
>    qga/commands-posix: Fix listing ifaces for Solaris
>    qga/commands-posix: Log all net stats failures
>    qga/commands-posix: 'guest-shutdown' for Solaris
> 
> Zhenwei Pi (2):
>    qga: Introduce NVMe disk bus type
>    qga: Introduce disk smart
> 
>   meson.build          |   1 +
>   qga/qapi-schema.json |  56 +++-
>   qga/commands-posix.c | 591 ++++++++++++++++++++++++++-----------------
>   3 files changed, 413 insertions(+), 235 deletions(-)
>