From: "Daniel P. Berrange" <berrange@xxxxxxxxxx> Most of the usage of getuid()/getgid() is in cases where we are considering what privileges we have. As such the code should be using the effective IDs, not real IDs. Signed-off-by: Daniel P. Berrange <berrange@xxxxxxxxxx> --- src/libvirt.c | 2 +- src/locking/lock_daemon.c | 2 +- src/locking/lock_driver_lockd.c | 4 ++-- src/lxc/lxc_controller.c | 2 +- src/qemu/qemu_driver.c | 6 +++--- src/remote/remote_driver.c | 4 ++-- src/storage/storage_backend.c | 4 ++-- src/storage/storage_backend_fs.c | 4 ++-- src/storage/storage_backend_logical.c | 2 +- src/util/virfile.c | 16 ++++++++-------- src/util/viridentity.c | 8 ++++---- src/util/virstoragefile.c | 2 +- src/vbox/vbox_driver.c | 2 +- src/vbox/vbox_tmpl.c | 2 +- tests/qemumonitortestutils.c | 2 +- tests/virnetsockettest.c | 4 ++-- 16 files changed, 33 insertions(+), 33 deletions(-) diff --git a/src/libvirt.c b/src/libvirt.c index aec5d80..96d8fdc 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -133,7 +133,7 @@ static int virConnectAuthGainPolkit(const char *privilege) { int status; int ret = -1; - if (getuid() == 0) + if (geteuid() == 0) return 0; cmd = virCommandNewArgList(POLKIT_AUTH, "--obtain", privilege, NULL); diff --git a/src/locking/lock_daemon.c b/src/locking/lock_daemon.c index cef5bd6..35ccb4e 100644 --- a/src/locking/lock_daemon.c +++ b/src/locking/lock_daemon.c @@ -1167,7 +1167,7 @@ int main(int argc, char **argv) { {0, 0, 0, 0} }; - privileged = getuid() == 0; + privileged = geteuid() == 0; if (setlocale(LC_ALL, "") == NULL || bindtextdomain(PACKAGE, LOCALEDIR) == NULL || diff --git a/src/locking/lock_driver_lockd.c b/src/locking/lock_driver_lockd.c index 86ce2d8..f3b9467 100644 --- a/src/locking/lock_driver_lockd.c +++ b/src/locking/lock_driver_lockd.c @@ -302,7 +302,7 @@ virLockManagerLockDaemonConnect(virLockManagerPtr lock, { virNetClientPtr client; - if (!(client = virLockManagerLockDaemonConnectionNew(getuid() == 0, program))) + if (!(client = virLockManagerLockDaemonConnectionNew(geteuid() == 0, program))) return NULL; if (virLockManagerLockDaemonConnectionRegister(lock, @@ -331,7 +331,7 @@ static int virLockManagerLockDaemonSetupLockspace(const char *path) memset(&args, 0, sizeof(args)); args.path = (char*)path; - if (!(client = virLockManagerLockDaemonConnectionNew(getuid() == 0, &program))) + if (!(client = virLockManagerLockDaemonConnectionNew(geteuid() == 0, &program))) return -1; if (virNetClientProgramCall(program, diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c index aa30d8e..c8f68c0 100644 --- a/src/lxc/lxc_controller.c +++ b/src/lxc/lxc_controller.c @@ -2362,7 +2362,7 @@ int main(int argc, char *argv[]) goto cleanup; } - if (getuid() != 0) { + if (geteuid() != 0) { fprintf(stderr, "%s: must be run as the 'root' user\n", argv[0]); goto cleanup; } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4977b12..c613967 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2793,8 +2793,8 @@ qemuOpenFileAs(uid_t fallback_uid, gid_t fallback_gid, unsigned int vfoflags = 0; int fd = -1; int path_shared = virStorageFileIsSharedFS(path); - uid_t uid = getuid(); - gid_t gid = getgid(); + uid_t uid = geteuid(); + gid_t gid = getegid(); /* path might be a pre-existing block dev, in which case * we need to skip the create step, and also avoid unlink @@ -2834,7 +2834,7 @@ qemuOpenFileAs(uid_t fallback_uid, gid_t fallback_gid, qemu user is non-root, just set a flag to bypass security driver shenanigans, and retry the operation after doing setuid to qemu user */ - if ((fd != -EACCES && fd != -EPERM) || fallback_uid == getuid()) + if ((fd != -EACCES && fd != -EPERM) || fallback_uid == geteuid()) goto error; /* On Linux we can also verify the FS-type of the directory. */ diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index b3ab3e6..7181949 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -995,7 +995,7 @@ remoteConnectOpen(virConnectPtr conn, (strstr(conn->uri->scheme, "+unix") != NULL)) && (STREQ(conn->uri->path, "/session") || STRPREFIX(conn->uri->scheme, "test+")) && - getuid() > 0) { + geteuid() > 0) { VIR_DEBUG("Auto-spawn user daemon instance"); rflags |= VIR_DRV_OPEN_REMOTE_USER; if (!virIsSUID() && @@ -1013,7 +1013,7 @@ remoteConnectOpen(virConnectPtr conn, if (!conn->uri) { VIR_DEBUG("Auto-probe remote URI"); #ifndef __sun - if (getuid() > 0) { + if (geteuid() > 0) { VIR_DEBUG("Auto-spawn user daemon instance"); rflags |= VIR_DRV_OPEN_REMOTE_USER; if (!virIsSUID() && diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index c21e6ea..aa2ed28 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -556,11 +556,11 @@ virStorageBackendCreateExecCommand(virStoragePoolObjPtr pool, bool filecreated = false; if ((pool->def->type == VIR_STORAGE_POOL_NETFS) - && (((getuid() == 0) + && (((geteuid() == 0) && (vol->target.perms.uid != (uid_t) -1) && (vol->target.perms.uid != 0)) || ((vol->target.perms.gid != (gid_t) -1) - && (vol->target.perms.gid != getgid())))) { + && (vol->target.perms.gid != getegid())))) { virCommandSetUID(cmd, vol->target.perms.uid); virCommandSetGID(cmd, vol->target.perms.gid); diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c index f9b0326..7ff950b 100644 --- a/src/storage/storage_backend_fs.c +++ b/src/storage/storage_backend_fs.c @@ -785,9 +785,9 @@ virStorageBackendFileSystemBuild(virConnectPtr conn ATTRIBUTE_UNUSED, /* Reflect the actual uid and gid to the config. */ if (pool->def->target.perms.uid == (uid_t) -1) - pool->def->target.perms.uid = getuid(); + pool->def->target.perms.uid = geteuid(); if (pool->def->target.perms.gid == (gid_t) -1) - pool->def->target.perms.gid = getgid(); + pool->def->target.perms.gid = getegid(); if (flags != 0) { ret = virStorageBackendMakeFileSystem(pool, flags); diff --git a/src/storage/storage_backend_logical.c b/src/storage/storage_backend_logical.c index 81ee4a4..10966cc 100644 --- a/src/storage/storage_backend_logical.c +++ b/src/storage/storage_backend_logical.c @@ -726,7 +726,7 @@ virStorageBackendLogicalCreateVol(virConnectPtr conn, goto error; /* We can only chown/grp if root */ - if (getuid() == 0) { + if (geteuid() == 0) { if (fchown(fd, vol->target.perms.uid, vol->target.perms.gid) < 0) { virReportSystemError(errno, _("cannot set file owner '%s'"), diff --git a/src/util/virfile.c b/src/util/virfile.c index bc607a5..3a9980c 100644 --- a/src/util/virfile.c +++ b/src/util/virfile.c @@ -1535,8 +1535,8 @@ virFileAccessibleAs(const char *path, int mode, gid_t *groups; int ngroups; - if (uid == getuid() && - gid == getgid()) + if (uid == geteuid() && + gid == getegid()) return access(path, mode); ngroups = virGetGroupList(uid, gid, &groups); @@ -1828,9 +1828,9 @@ virFileOpenAs(const char *path, int openflags, mode_t mode, /* allow using -1 to mean "current value" */ if (uid == (uid_t) -1) - uid = getuid(); + uid = geteuid(); if (gid == (gid_t) -1) - gid = getgid(); + gid = getegid(); /* treat absence of both flags as presence of both for simpler * calling. */ @@ -1838,7 +1838,7 @@ virFileOpenAs(const char *path, int openflags, mode_t mode, flags |= VIR_FILE_OPEN_NOFORK|VIR_FILE_OPEN_FORK; if ((flags & VIR_FILE_OPEN_NOFORK) - || (getuid() != 0) + || (geteuid() != 0) || ((uid == 0) && (gid == 0))) { if ((fd = open(path, openflags, mode)) < 0) { @@ -1949,12 +1949,12 @@ virDirCreate(const char *path, /* allow using -1 to mean "current value" */ if (uid == (uid_t) -1) - uid = getuid(); + uid = geteuid(); if (gid == (gid_t) -1) - gid = getgid(); + gid = getegid(); if ((!(flags & VIR_DIR_CREATE_AS_UID)) - || (getuid() != 0) + || (geteuid() != 0) || ((uid == 0) && (gid == 0)) || ((flags & VIR_DIR_CREATE_ALLOW_EXIST) && (stat(path, &st) >= 0))) { return virDirCreateNoFork(path, mode, uid, gid, flags); diff --git a/src/util/viridentity.c b/src/util/viridentity.c index f681f85..4f5127c 100644 --- a/src/util/viridentity.c +++ b/src/util/viridentity.c @@ -157,14 +157,14 @@ virIdentityPtr virIdentityGetSystem(void) virAsprintf(&processtime, "%llu", timestamp) < 0) goto cleanup; - if (!(username = virGetUserName(getuid()))) + if (!(username = virGetUserName(geteuid()))) goto cleanup; - if (virAsprintf(&userid, "%d", (int)getuid()) < 0) + if (virAsprintf(&userid, "%d", (int)geteuid()) < 0) goto cleanup; - if (!(groupname = virGetGroupName(getgid()))) + if (!(groupname = virGetGroupName(getegid()))) goto cleanup; - if (virAsprintf(&groupid, "%d", (int)getgid()) < 0) + if (virAsprintf(&groupid, "%d", (int)getegid()) < 0) goto cleanup; #if WITH_SELINUX diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c index 48d5fbb..1b4d4cf 100644 --- a/src/util/virstoragefile.c +++ b/src/util/virstoragefile.c @@ -572,7 +572,7 @@ virFindBackingFile(const char *start, bool start_is_dir, const char *path, goto cleanup; } - if (virFileAccessibleAs(combined, F_OK, getuid(), getgid()) < 0) { + if (virFileAccessibleAs(combined, F_OK, geteuid(), getegid()) < 0) { virReportSystemError(errno, _("Cannot access backing file '%s'"), combined); diff --git a/src/vbox/vbox_driver.c b/src/vbox/vbox_driver.c index 9d07574..4978913 100644 --- a/src/vbox/vbox_driver.c +++ b/src/vbox/vbox_driver.c @@ -153,7 +153,7 @@ static virDrvOpenStatus vboxConnectOpen(virConnectPtr conn, virConnectAuthPtr auth ATTRIBUTE_UNUSED, unsigned int flags) { - uid_t uid = getuid(); + uid_t uid = geteuid(); virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR); diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c index c994067..37ca651 100644 --- a/src/vbox/vbox_tmpl.c +++ b/src/vbox/vbox_tmpl.c @@ -999,7 +999,7 @@ static virDrvOpenStatus vboxConnectOpen(virConnectPtr conn, unsigned int flags) { vboxGlobalData *data = NULL; - uid_t uid = getuid(); + uid_t uid = geteuid(); virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR); diff --git a/tests/qemumonitortestutils.c b/tests/qemumonitortestutils.c index 2aefabc..60ffe90 100644 --- a/tests/qemumonitortestutils.c +++ b/tests/qemumonitortestutils.c @@ -789,7 +789,7 @@ qemuMonitorCommonTestNew(virDomainXMLOptionPtr xmlopt, goto error; } - if (virNetSocketNewListenUNIX(path, 0700, getuid(), getgid(), + if (virNetSocketNewListenUNIX(path, 0700, geteuid(), getegid(), &test->server) < 0) goto error; diff --git a/tests/virnetsockettest.c b/tests/virnetsockettest.c index b3e12f9..eda95bc 100644 --- a/tests/virnetsockettest.c +++ b/tests/virnetsockettest.c @@ -220,7 +220,7 @@ static int testSocketUNIXAccept(const void *data ATTRIBUTE_UNUSED) if (virAsprintf(&path, "%s/test.sock", tmpdir) < 0) goto cleanup; - if (virNetSocketNewListenUNIX(path, 0700, -1, getgid(), &lsock) < 0) + if (virNetSocketNewListenUNIX(path, 0700, -1, getegid(), &lsock) < 0) goto cleanup; if (virNetSocketListen(lsock, 0) < 0) @@ -270,7 +270,7 @@ static int testSocketUNIXAddrs(const void *data ATTRIBUTE_UNUSED) if (virAsprintf(&path, "%s/test.sock", tmpdir) < 0) goto cleanup; - if (virNetSocketNewListenUNIX(path, 0700, -1, getgid(), &lsock) < 0) + if (virNetSocketNewListenUNIX(path, 0700, -1, getegid(), &lsock) < 0) goto cleanup; if (STRNEQ(virNetSocketLocalAddrString(lsock), "127.0.0.1;0")) { -- 1.8.3.1 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list