PING
> On Apr 4, 2017, at 7:51 AM, Vinzenz 'evilissimo' Feenstra
> <vfeen...@redhat.com> wrote:
>
> From: Vinzenz Feenstra <vfeen...@redhat.com>
>
> A command that will list all currently logged in users, and the time
> since when they are logged in.
>
> Examples:
>
> virsh # qemu-agent-command F25 '{ "execute": "guest-get-users" }'
> {"return":[{"login-time":1490622289.903835,"user":"root"}]}
>
> virsh # qemu-agent-command Win2k12r2 '{ "execute": "guest-get-users" }'
> {"return":[{"login-time":1490351044.670552,"domain":"LADIDA",
> "user":"Administrator"}]}
>
> Signed-off-by: Vinzenz Feenstra <vfeen...@redhat.com>
> ---
> configure | 2 +-
> include/glib-compat.h | 5 +++
> qga/commands-posix.c | 54 +++++++++++++++++++++++++++++++
> qga/commands-win32.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++
> qga/qapi-schema.json | 24 ++++++++++++++
> 5 files changed, 173 insertions(+), 1 deletion(-)
>
> diff --git a/configure b/configure
> index d1ce33b..779ebfd 100755
> --- a/configure
> +++ b/configure
> @@ -737,7 +737,7 @@ if test "$mingw32" = "yes" ; then
> sysconfdir="\${prefix}"
> local_statedir=
> confsuffix=""
> - libs_qga="-lws2_32 -lwinmm -lpowrprof -liphlpapi -lnetapi32 $libs_qga"
> + libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -liphlpapi -lnetapi32
> $libs_qga"
> fi
>
> werror=""
> diff --git a/include/glib-compat.h b/include/glib-compat.h
> index 863c8cf..f8ee9dc 100644
> --- a/include/glib-compat.h
> +++ b/include/glib-compat.h
> @@ -217,6 +217,11 @@ static inline void g_hash_table_add(GHashTable
> *hash_table, gpointer key)
> {
> g_hash_table_replace(hash_table, key, key);
> }
> +
> +static gboolean g_hash_table_contains(GHashTable *hash_table, gpointer key)
> +{
> + return g_hash_table_lookup_extended(hash_table, key, NULL, NULL);
> +}
> #endif
>
> #ifndef g_assert_true
> diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> index 73d93eb..3081ee7 100644
> --- a/qga/commands-posix.c
> +++ b/qga/commands-posix.c
> @@ -15,6 +15,7 @@
> #include <sys/ioctl.h>
> #include <sys/wait.h>
> #include <dirent.h>
> +#include <utmpx.h>
> #include "qga/guest-agent-core.h"
> #include "qga-qmp-commands.h"
> #include "qapi/qmp/qerror.h"
> @@ -2515,3 +2516,56 @@ void ga_command_state_init(GAState *s, GACommandState
> *cs)
> ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
> #endif
> }
> +
> +#ifndef QGA_MICRO_SECOND_TO_SECOND
> +# define QGA_MICRO_SECOND_TO_SECOND 1000000
> +#endif
> +
> +static double ga_get_login_time(struct utmpx *user_info)
> +{
> + double seconds = (double)user_info->ut_tv.tv_sec;
> + double useconds = (double)user_info->ut_tv.tv_usec;
> + useconds /= QGA_MICRO_SECOND_TO_SECOND;
> + return seconds + useconds;
> +}
> +
> +GuestUserList *qmp_guest_get_users(Error **err)
> +{
> + GHashTable *cache = g_hash_table_new(g_str_hash, g_str_equal);
> + GuestUserList *head = NULL, *cur_item = NULL;
> + setutxent();
> + for (;;) {
> + struct utmpx *user_info = getutxent();
> + if (user_info == NULL) {
> + break;
> + } else if (user_info->ut_type != USER_PROCESS) {
> + continue;
> + } else if (g_hash_table_contains(cache, user_info->ut_user)) {
> + gpointer value = g_hash_table_lookup(cache, user_info->ut_user);
> + GuestUser *user = (GuestUser *)value;
> + double login_time = ga_get_login_time(user_info);
> + /* We're ensuring the earliest login time to be sent */
> + if (login_time < user->login_time) {
> + user->login_time = login_time;
> + }
> + continue;
> + }
> +
> + GuestUserList *item = g_new0(GuestUserList, 1);
> + item->value = g_new0(GuestUser, 1);
> + item->value->user = g_strdup(user_info->ut_user);
> + item->value->login_time = ga_get_login_time(user_info);
> +
> + g_hash_table_insert(cache, item->value->user, item->value);
> +
> + if (!cur_item) {
> + head = cur_item = item;
> + } else {
> + cur_item->next = item;
> + cur_item = item;
> + }
> + }
> + endutxent();
> + g_hash_table_destroy(cache);
> + return head;
> +}
> diff --git a/qga/commands-win32.c b/qga/commands-win32.c
> index 19d72b2..8b84a90 100644
> --- a/qga/commands-win32.c
> +++ b/qga/commands-win32.c
> @@ -11,6 +11,9 @@
> * See the COPYING file in the top-level directory.
> */
>
> +#ifndef _WIN32_WINNT
> +# define _WIN32_WINNT 0x0600
> +#endif
> #include "qemu/osdep.h"
> #include <wtypes.h>
> #include <powrprof.h>
> @@ -25,6 +28,7 @@
> #include <initguid.h>
> #endif
> #include <lm.h>
> +#include <wtsapi32.h>
>
> #include "qga/guest-agent-core.h"
> #include "qga/vss-win32.h"
> @@ -1536,3 +1540,88 @@ void ga_command_state_init(GAState *s, GACommandState
> *cs)
> ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
> }
> }
> +
> +/* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
> +typedef struct _GA_WTSINFOA {
> + WTS_CONNECTSTATE_CLASS State;
> + DWORD SessionId;
> + DWORD IncomingBytes;
> + DWORD OutgoingBytes;
> + DWORD IncomingFrames;
> + DWORD OutgoingFrames;
> + DWORD IncomingCompressedBytes;
> + DWORD OutgoingCompressedBy;
> + CHAR WinStationName[WINSTATIONNAME_LENGTH];
> + CHAR Domain[DOMAIN_LENGTH];
> + CHAR UserName[USERNAME_LENGTH + 1];
> + LARGE_INTEGER ConnectTime;
> + LARGE_INTEGER DisconnectTime;
> + LARGE_INTEGER LastInputTime;
> + LARGE_INTEGER LogonTime;
> + LARGE_INTEGER CurrentTime;
> +
> +} GA_WTSINFOA;
> +
> +GuestUserList *qmp_guest_get_users(Error **err)
> +{
> +#if (_WIN32_WINNT >= 0x0600)
> +#ifndef QGA_NANOSECONDS
> +# define QGA_NANOSECONDS 10000000
> +#endif
> +#ifndef QGA_EPOCH_TIME_DIFF
> +# define QGA_EPOCH_TIME_DIFF 116444736000000000LL
> +#endif
> +
> + GHashTable *cache = g_hash_table_new(g_str_hash, g_str_equal);
> + GuestUserList *head = NULL, *cur_item = NULL;
> +
> + DWORD count = 0;
> + WTS_SESSION_INFOA *entries = NULL;
> + if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
> + for (DWORD i = 0; i < count; ++i) {
> + DWORD buffer_size = 0;
> + GA_WTSINFOA *session_info = NULL;
> + if (WTSQuerySessionInformationA(
> + NULL,
> + entries[i].SessionId,
> + WTSSessionInfo,
> + (LPSTR *)&session_info,
> + &buffer_size
> + )) {
> + if (strlen(session_info->UserName) == 0 ||
> + g_hash_table_contains(cache, session_info->UserName)) {
> + WTSFreeMemory(session_info);
> + continue;
> + }
> +
> + GuestUserList *item = g_new0(GuestUserList, 1);
> + item->value = g_new0(GuestUser, 1);
> +
> + item->value->user = g_strdup(session_info->UserName);
> + item->value->domain = g_strdup(session_info->Domain);
> + item->value->has_domain = true;
> +
> + INT64 login = session_info->LogonTime.QuadPart;
> + login -= QGA_EPOCH_TIME_DIFF;
> + item->value->login_time = ((double)login) / QGA_NANOSECONDS;
> +
> + g_hash_table_add(cache, item->value->user);
> +
> + if (!cur_item) {
> + head = cur_item = item;
> + } else {
> + cur_item->next = item;
> + cur_item = item;
> + }
> + }
> + WTSFreeMemory(session_info);
> + }
> + WTSFreeMemory(entries);
> + }
> + g_hash_table_destroy(cache);
> + return head;
> +#else
> + error_setg(err, QERR_UNSUPPORTED);
> + return NULL;
> +#endif
> +}
> diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> index a02dbf2..27d10be 100644
> --- a/qga/qapi-schema.json
> +++ b/qga/qapi-schema.json
> @@ -1042,3 +1042,27 @@
> 'data': { 'path': 'str', '*arg': ['str'], '*env': ['str'],
> '*input-data': 'str', '*capture-output': 'bool' },
> 'returns': 'GuestExec' }
> +
> +##
> +# @GuestUser:
> +# @user: Username
> +# @domain: Logon domain (windows only)
> +# @login-time: Time of login of this user on the computer. If multiple
> +# instances of the user are logged in, the earliest login time
> is
> +# reported. The value is in fractional seconds since epoch time.
> +#
> +# Since: 2.10
> +##
> +{ 'struct': 'GuestUser',
> + 'data': { 'user': 'str', 'login-time': 'number', '*domain': 'str' } }
> +
> +##
> +# @guest-get-users:
> +# Retrieves a list of currently active users on the VM.
> +#
> +# Returns: A unique list of users.
> +#
> +# Since: 2.10
> +##
> +{ 'command': 'guest-get-users',
> + 'returns': ['GuestUser'] }
> --
> 2.9.3
>
--
Vinzenz Feenstra
Senior Software Developer
Red Hat Czech
