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Unverified Commit 4b5f4bdc by Christian Brauner
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commands: introduce lxc_cmd_rsp_send_reap()

Signed-off-by: 's avatarChristian Brauner <christian.brauner@ubuntu.com>
parent 32fd8d4f
Showing with 84 additions and 116 deletions
src/lxc/commands.c
...@@ -210,26 +210,35 @@ static int lxc_cmd_rsp_recv(int sock, struct lxc_cmd_rr *cmd) ...@@ -210,26 +210,35 @@ static int lxc_cmd_rsp_recv(int sock, struct lxc_cmd_rr *cmd)
* *
* Returns 0 on success, < 0 on failure * Returns 0 on success, < 0 on failure
*/ */
static int lxc_cmd_rsp_send(int fd, struct lxc_cmd_rsp *rsp) static int __lxc_cmd_rsp_send(int fd, struct lxc_cmd_rsp *rsp)
{ {
ssize_t ret; ssize_t ret;
errno = EMSGSIZE;
ret = lxc_send_nointr(fd, rsp, sizeof(*rsp), MSG_NOSIGNAL); ret = lxc_send_nointr(fd, rsp, sizeof(*rsp), MSG_NOSIGNAL);
if (ret < 0 || (size_t)ret != sizeof(*rsp)) if (ret < 0 || (size_t)ret != sizeof(*rsp))
return log_error_errno(-1, errno, "Failed to send command response %zd", ret); return syserrno(-errno, "Failed to send command response %zd", ret);
if (!rsp->data || rsp->datalen <= 0) if (!rsp->data || rsp->datalen <= 0)
return 0; return 0;
errno = EMSGSIZE;
ret = lxc_send_nointr(fd, rsp->data, rsp->datalen, MSG_NOSIGNAL); ret = lxc_send_nointr(fd, rsp->data, rsp->datalen, MSG_NOSIGNAL);
if (ret < 0 || ret != (ssize_t)rsp->datalen) if (ret < 0 || ret != (ssize_t)rsp->datalen)
return log_warn_errno(-1, errno, "Failed to send command response data %zd", ret); return syswarn(-errno, "Failed to send command response %zd", ret);
return 0; return 0;
} }
static inline int lxc_cmd_rsp_send_reap(int fd, struct lxc_cmd_rsp *rsp)
{
int ret;
ret = __lxc_cmd_rsp_send(fd, rsp);
if (ret < 0)
return ret;
return LXC_CMD_REAP_CLIENT_FD;
}
static int lxc_cmd_send(const char *name, struct lxc_cmd_rr *cmd, static int lxc_cmd_send(const char *name, struct lxc_cmd_rr *cmd,
const char *lxcpath, const char *hashed_sock_name) const char *lxcpath, const char *hashed_sock_name)
{ {
...@@ -352,7 +361,6 @@ int lxc_try_cmd(const char *name, const char *lxcpath) ...@@ -352,7 +361,6 @@ int lxc_try_cmd(const char *name, const char *lxcpath)
*/ */
static int validate_string_request(int fd, const struct lxc_cmd_req *req) static int validate_string_request(int fd, const struct lxc_cmd_req *req)
{ {
int ret;
size_t maxlen = req->datalen - 1; size_t maxlen = req->datalen - 1;
const char *data = req->data; const char *data = req->data;
...@@ -365,11 +373,7 @@ static int validate_string_request(int fd, const struct lxc_cmd_req *req) ...@@ -365,11 +373,7 @@ static int validate_string_request(int fd, const struct lxc_cmd_req *req)
.data = NULL, .data = NULL,
}; };
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return -1;
} }
/* Implementations of the commands and their callbacks */ /* Implementations of the commands and their callbacks */
...@@ -413,16 +417,11 @@ static int lxc_cmd_get_init_pid_callback(int fd, struct lxc_cmd_req *req, ...@@ -413,16 +417,11 @@ static int lxc_cmd_get_init_pid_callback(int fd, struct lxc_cmd_req *req,
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret;
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.data = PID_TO_PTR(handler->pid) .data = PID_TO_PTR(handler->pid),
}; };
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
int lxc_cmd_get_init_pidfd(const char *name, const char *lxcpath) int lxc_cmd_get_init_pidfd(const char *name, const char *lxcpath)
...@@ -449,17 +448,19 @@ static int lxc_cmd_get_init_pidfd_callback(int fd, struct lxc_cmd_req *req, ...@@ -449,17 +448,19 @@ static int lxc_cmd_get_init_pidfd_callback(int fd, struct lxc_cmd_req *req,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.ret = 0, .ret = -EBADF,
}; };
int ret; int ret;
if (handler->pidfd < 0) if (handler->pidfd < 0)
rsp.ret = -EBADF; return lxc_cmd_rsp_send_reap(fd, &rsp);
rsp.ret = 0;
ret = lxc_abstract_unix_send_fds(fd, &handler->pidfd, 1, &rsp, sizeof(rsp)); ret = lxc_abstract_unix_send_fds(fd, &handler->pidfd, 1, &rsp, sizeof(rsp));
if (ret < 0) if (ret < 0)
return log_error(LXC_CMD_REAP_CLIENT_FD, "Failed to send init pidfd"); return syserrno(ret, "Failed to send init pidfd");
return 0; return log_trace(LXC_CMD_REAP_CLIENT_FD, "Sent init pidfd");
} }
int lxc_cmd_get_devpts_fd(const char *name, const char *lxcpath) int lxc_cmd_get_devpts_fd(const char *name, const char *lxcpath)
...@@ -486,20 +487,19 @@ static int lxc_cmd_get_devpts_fd_callback(int fd, struct lxc_cmd_req *req, ...@@ -486,20 +487,19 @@ static int lxc_cmd_get_devpts_fd_callback(int fd, struct lxc_cmd_req *req,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.ret = 0, .ret = -EBADF,
}; };
int ret; int ret;
if (!handler->conf || handler->conf->devpts_fd < 0) { if (!handler->conf || handler->conf->devpts_fd < 0)
rsp.ret = -EBADF; return lxc_cmd_rsp_send_reap(fd, &rsp);
ret = lxc_abstract_unix_send_fds(fd, NULL, 0, &rsp, sizeof(rsp));
} else { rsp.ret = 0;
ret = lxc_abstract_unix_send_fds(fd, &handler->conf->devpts_fd, 1, &rsp, sizeof(rsp)); ret = lxc_abstract_unix_send_fds(fd, &handler->conf->devpts_fd, 1, &rsp, sizeof(rsp));
}
if (ret < 0) if (ret < 0)
return log_error(LXC_CMD_REAP_CLIENT_FD, "Failed to send devpts fd"); return syserrno(ret, "Failed to send devpts fd");
return 0; return log_trace(LXC_CMD_REAP_CLIENT_FD, "Sent devpts fd");
} }
int lxc_cmd_get_seccomp_notify_fd(const char *name, const char *lxcpath) int lxc_cmd_get_seccomp_notify_fd(const char *name, const char *lxcpath)
...@@ -531,19 +531,21 @@ static int lxc_cmd_get_seccomp_notify_fd_callback(int fd, struct lxc_cmd_req *re ...@@ -531,19 +531,21 @@ static int lxc_cmd_get_seccomp_notify_fd_callback(int fd, struct lxc_cmd_req *re
{ {
#ifdef HAVE_SECCOMP_NOTIFY #ifdef HAVE_SECCOMP_NOTIFY
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.ret = 0, .ret = -EBADF,
}; };
int ret; int ret;
if (!handler->conf || handler->conf->seccomp.notifier.notify_fd < 0) if (!handler->conf || handler->conf->seccomp.notifier.notify_fd < 0)
rsp.ret = -EBADF; return lxc_cmd_rsp_send_reap(fd, &rsp);
rsp.ret = 0;
ret = lxc_abstract_unix_send_fds(fd, &handler->conf->seccomp.notifier.notify_fd, 1, &rsp, sizeof(rsp)); ret = lxc_abstract_unix_send_fds(fd, &handler->conf->seccomp.notifier.notify_fd, 1, &rsp, sizeof(rsp));
if (ret < 0) if (ret < 0)
return log_error(LXC_CMD_REAP_CLIENT_FD, "Failed to send seccomp notify fd"); return syserrno(ret, "Failed to send seccomp notify fd");
return 0; return log_trace(LXC_CMD_REAP_CLIENT_FD, "Failed to send seccomp notify fd");
#else #else
return ret_errno(EOPNOTSUPP); return syserrno_set(-EOPNOTSUPP, "Seccomp notifier not supported");
#endif #endif
} }
...@@ -575,16 +577,11 @@ static int lxc_cmd_get_clone_flags_callback(int fd, struct lxc_cmd_req *req, ...@@ -575,16 +577,11 @@ static int lxc_cmd_get_clone_flags_callback(int fd, struct lxc_cmd_req *req,
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret;
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.data = INT_TO_PTR(handler->ns_clone_flags), .data = INT_TO_PTR(handler->ns_clone_flags),
}; };
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
static char *lxc_cmd_get_cgroup_path_do(const char *name, const char *lxcpath, static char *lxc_cmd_get_cgroup_path_do(const char *name, const char *lxcpath,
...@@ -704,11 +701,7 @@ static int lxc_cmd_get_cgroup_callback_do(int fd, struct lxc_cmd_req *req, ...@@ -704,11 +701,7 @@ static int lxc_cmd_get_cgroup_callback_do(int fd, struct lxc_cmd_req *req,
rsp.datalen = strlen(path) + 1; rsp.datalen = strlen(path) + 1;
rsp.data = (char *)path; rsp.data = (char *)path;
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
static int lxc_cmd_get_cgroup_callback(int fd, struct lxc_cmd_req *req, static int lxc_cmd_get_cgroup_callback(int fd, struct lxc_cmd_req *req,
...@@ -787,11 +780,7 @@ static int lxc_cmd_get_config_item_callback(int fd, struct lxc_cmd_req *req, ...@@ -787,11 +780,7 @@ static int lxc_cmd_get_config_item_callback(int fd, struct lxc_cmd_req *req,
err1: err1:
rsp.ret = -1; rsp.ret = -1;
out: out:
cilen = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (cilen < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
/* /*
...@@ -830,16 +819,11 @@ static int lxc_cmd_get_state_callback(int fd, struct lxc_cmd_req *req, ...@@ -830,16 +819,11 @@ static int lxc_cmd_get_state_callback(int fd, struct lxc_cmd_req *req,
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret;
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.data = INT_TO_PTR(handler->state), .data = INT_TO_PTR(handler->state),
}; };
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
/* /*
...@@ -912,11 +896,7 @@ static int lxc_cmd_stop_callback(int fd, struct lxc_cmd_req *req, ...@@ -912,11 +896,7 @@ static int lxc_cmd_stop_callback(int fd, struct lxc_cmd_req *req,
rsp.ret = -errno; rsp.ret = -errno;
} }
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
/* /*
...@@ -988,23 +968,24 @@ static int lxc_cmd_console_callback(int fd, struct lxc_cmd_req *req, ...@@ -988,23 +968,24 @@ static int lxc_cmd_console_callback(int fd, struct lxc_cmd_req *req,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ptxfd, ret; int ptxfd, ret;
struct lxc_cmd_rsp rsp; struct lxc_cmd_rsp rsp = {
.ret = -EBADF,
};
int ttynum = PTR_TO_INT(req->data); int ttynum = PTR_TO_INT(req->data);
ptxfd = lxc_terminal_allocate(handler->conf, fd, &ttynum); ptxfd = lxc_terminal_allocate(handler->conf, fd, &ttynum);
if (ptxfd < 0) if (ptxfd < 0)
return LXC_CMD_REAP_CLIENT_FD; return lxc_cmd_rsp_send_reap(fd, &rsp);
memset(&rsp, 0, sizeof(rsp)); rsp.ret = 0;
rsp.data = INT_TO_PTR(ttynum); rsp.data = INT_TO_PTR(ttynum);
ret = lxc_abstract_unix_send_fds(fd, &ptxfd, 1, &rsp, sizeof(rsp)); ret = lxc_abstract_unix_send_fds(fd, &ptxfd, 1, &rsp, sizeof(rsp));
if (ret < 0) { if (ret < 0) {
lxc_terminal_free(handler->conf, fd); lxc_terminal_free(handler->conf, fd);
return log_error_errno(LXC_CMD_REAP_CLIENT_FD, errno, return ret;
"Failed to send tty to client");
} }
return 0; return log_debug(0, "Send tty to client");
} }
/* /*
...@@ -1037,7 +1018,6 @@ static int lxc_cmd_get_name_callback(int fd, struct lxc_cmd_req *req, ...@@ -1037,7 +1018,6 @@ static int lxc_cmd_get_name_callback(int fd, struct lxc_cmd_req *req,
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret;
struct lxc_cmd_rsp rsp; struct lxc_cmd_rsp rsp;
memset(&rsp, 0, sizeof(rsp)); memset(&rsp, 0, sizeof(rsp));
...@@ -1046,11 +1026,7 @@ static int lxc_cmd_get_name_callback(int fd, struct lxc_cmd_req *req, ...@@ -1046,11 +1026,7 @@ static int lxc_cmd_get_name_callback(int fd, struct lxc_cmd_req *req,
rsp.datalen = strlen(handler->name) + 1; rsp.datalen = strlen(handler->name) + 1;
rsp.ret = 0; rsp.ret = 0;
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
/* /*
...@@ -1083,18 +1059,13 @@ static int lxc_cmd_get_lxcpath_callback(int fd, struct lxc_cmd_req *req, ...@@ -1083,18 +1059,13 @@ static int lxc_cmd_get_lxcpath_callback(int fd, struct lxc_cmd_req *req,
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret;
struct lxc_cmd_rsp rsp = { struct lxc_cmd_rsp rsp = {
.ret = 0, .ret = 0,
.data = (char *)handler->lxcpath, .data = (char *)handler->lxcpath,
.datalen = strlen(handler->lxcpath) + 1, .datalen = strlen(handler->lxcpath) + 1,
}; };
ret = lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
int lxc_cmd_add_state_client(const char *name, const char *lxcpath, int lxc_cmd_add_state_client(const char *name, const char *lxcpath,
...@@ -1143,29 +1114,27 @@ static int lxc_cmd_add_state_client_callback(__owns int fd, struct lxc_cmd_req * ...@@ -1143,29 +1114,27 @@ static int lxc_cmd_add_state_client_callback(__owns int fd, struct lxc_cmd_req *
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret; struct lxc_cmd_rsp rsp = {
struct lxc_cmd_rsp rsp = {0}; .ret = -EINVAL,
};
if (req->datalen < 0) if (req->datalen < 0)
return LXC_CMD_REAP_CLIENT_FD; goto out;
if (req->datalen != (sizeof(lxc_state_t) * MAX_STATE)) if (req->datalen != (sizeof(lxc_state_t) * MAX_STATE))
return LXC_CMD_REAP_CLIENT_FD; goto out;
if (!req->data) if (!req->data)
return LXC_CMD_REAP_CLIENT_FD; goto out;
rsp.ret = lxc_add_state_client(fd, handler, (lxc_state_t *)req->data); rsp.ret = lxc_add_state_client(fd, handler, (lxc_state_t *)req->data);
if (rsp.ret < 0) if (rsp.ret < 0)
return LXC_CMD_REAP_CLIENT_FD; goto out;
rsp.data = INT_TO_PTR(rsp.ret); rsp.data = INT_TO_PTR(rsp.ret);
ret = lxc_cmd_rsp_send(fd, &rsp); out:
if (ret < 0) return lxc_cmd_rsp_send_reap(fd, &rsp);
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
int lxc_cmd_add_bpf_device_cgroup(const char *name, const char *lxcpath, int lxc_cmd_add_bpf_device_cgroup(const char *name, const char *lxcpath,
...@@ -1196,18 +1165,19 @@ static int lxc_cmd_add_bpf_device_cgroup_callback(int fd, struct lxc_cmd_req *re ...@@ -1196,18 +1165,19 @@ static int lxc_cmd_add_bpf_device_cgroup_callback(int fd, struct lxc_cmd_req *re
struct lxc_handler *handler, struct lxc_handler *handler,
struct lxc_epoll_descr *descr) struct lxc_epoll_descr *descr)
{ {
int ret; struct lxc_cmd_rsp rsp = {
struct lxc_cmd_rsp rsp = {}; .ret = -EINVAL,
};
struct lxc_conf *conf; struct lxc_conf *conf;
if (req->datalen <= 0) if (req->datalen <= 0)
return LXC_CMD_REAP_CLIENT_FD; goto out;
if (req->datalen != sizeof(struct device_item)) if (req->datalen != sizeof(struct device_item))
return LXC_CMD_REAP_CLIENT_FD; goto out;
if (!req->data) if (!req->data)
return LXC_CMD_REAP_CLIENT_FD; goto out;
conf = handler->conf; conf = handler->conf;
if (!bpf_cgroup_devices_update(handler->cgroup_ops, if (!bpf_cgroup_devices_update(handler->cgroup_ops,
...@@ -1217,11 +1187,8 @@ static int lxc_cmd_add_bpf_device_cgroup_callback(int fd, struct lxc_cmd_req *re ...@@ -1217,11 +1187,8 @@ static int lxc_cmd_add_bpf_device_cgroup_callback(int fd, struct lxc_cmd_req *re
else else
rsp.ret = 0; rsp.ret = 0;
ret = lxc_cmd_rsp_send(fd, &rsp); out:
if (ret < 0) return lxc_cmd_rsp_send_reap(fd, &rsp);
return LXC_CMD_REAP_CLIENT_FD;
return 0;
} }
int lxc_cmd_console_log(const char *name, const char *lxcpath, int lxc_cmd_console_log(const char *name, const char *lxcpath,
...@@ -1297,7 +1264,7 @@ static int lxc_cmd_console_log_callback(int fd, struct lxc_cmd_req *req, ...@@ -1297,7 +1264,7 @@ static int lxc_cmd_console_log_callback(int fd, struct lxc_cmd_req *req,
lxc_ringbuf_move_read_addr(buf, rsp.datalen); lxc_ringbuf_move_read_addr(buf, rsp.datalen);
out: out:
return lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
} }
int lxc_cmd_serve_state_clients(const char *name, const char *lxcpath, int lxc_cmd_serve_state_clients(const char *name, const char *lxcpath,
...@@ -1329,13 +1296,9 @@ static int lxc_cmd_serve_state_clients_callback(int fd, struct lxc_cmd_req *req, ...@@ -1329,13 +1296,9 @@ static int lxc_cmd_serve_state_clients_callback(int fd, struct lxc_cmd_req *req,
ret = lxc_serve_state_clients(handler->name, handler, state); ret = lxc_serve_state_clients(handler->name, handler, state);
if (ret < 0) if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD; return ret;
ret = lxc_cmd_rsp_send(fd, &rsp);
if (ret < 0)
return LXC_CMD_REAP_CLIENT_FD;
return 0; return lxc_cmd_rsp_send_reap(fd, &rsp);
} }
int lxc_cmd_seccomp_notify_add_listener(const char *name, const char *lxcpath, int lxc_cmd_seccomp_notify_add_listener(const char *name, const char *lxcpath,
...@@ -1400,7 +1363,7 @@ out: ...@@ -1400,7 +1363,7 @@ out:
rsp.ret = -ENOSYS; rsp.ret = -ENOSYS;
#endif #endif
return lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
} }
int lxc_cmd_freeze(const char *name, const char *lxcpath, int timeout) int lxc_cmd_freeze(const char *name, const char *lxcpath, int timeout)
...@@ -1433,7 +1396,7 @@ static int lxc_cmd_freeze_callback(int fd, struct lxc_cmd_req *req, ...@@ -1433,7 +1396,7 @@ static int lxc_cmd_freeze_callback(int fd, struct lxc_cmd_req *req,
if (pure_unified_layout(ops)) if (pure_unified_layout(ops))
rsp.ret = ops->freeze(ops, timeout); rsp.ret = ops->freeze(ops, timeout);
return lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
} }
int lxc_cmd_unfreeze(const char *name, const char *lxcpath, int timeout) int lxc_cmd_unfreeze(const char *name, const char *lxcpath, int timeout)
...@@ -1466,7 +1429,7 @@ static int lxc_cmd_unfreeze_callback(int fd, struct lxc_cmd_req *req, ...@@ -1466,7 +1429,7 @@ static int lxc_cmd_unfreeze_callback(int fd, struct lxc_cmd_req *req,
if (pure_unified_layout(ops)) if (pure_unified_layout(ops))
rsp.ret = ops->unfreeze(ops, timeout); rsp.ret = ops->unfreeze(ops, timeout);
return lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
} }
int lxc_cmd_get_cgroup2_fd(const char *name, const char *lxcpath) int lxc_cmd_get_cgroup2_fd(const char *name, const char *lxcpath)
...@@ -1519,17 +1482,22 @@ static int lxc_cmd_get_cgroup2_fd_callback_do(int fd, struct lxc_cmd_req *req, ...@@ -1519,17 +1482,22 @@ static int lxc_cmd_get_cgroup2_fd_callback_do(int fd, struct lxc_cmd_req *req,
int ret, send_fd; int ret, send_fd;
if (!pure_unified_layout(ops) || !ops->unified) if (!pure_unified_layout(ops) || !ops->unified)
return lxc_cmd_rsp_send(fd, &rsp); return lxc_cmd_rsp_send_reap(fd, &rsp);
send_fd = limiting_cgroup ? ops->unified->dfd_lim send_fd = limiting_cgroup ? ops->unified->dfd_lim
: ops->unified->dfd_con; : ops->unified->dfd_con;
if (send_fd < 0) {
rsp.ret = -EBADF;
return lxc_cmd_rsp_send_reap(fd, &rsp);
}
rsp.ret = 0; rsp.ret = 0;
ret = lxc_abstract_unix_send_fds(fd, &send_fd, 1, &rsp, sizeof(rsp)); ret = lxc_abstract_unix_send_fds(fd, &send_fd, 1, &rsp, sizeof(rsp));
if (ret < 0) if (ret < 0)
return log_error(LXC_CMD_REAP_CLIENT_FD, "Failed to send cgroup2 fd"); return syserrno(ret, "Failed to send cgroup2 fd");
return 0; return log_trace(LXC_CMD_REAP_CLIENT_FD, "Sent cgroup2 fd");
} }
static int lxc_cmd_get_cgroup2_fd_callback(int fd, struct lxc_cmd_req *req, static int lxc_cmd_get_cgroup2_fd_callback(int fd, struct lxc_cmd_req *req,
...@@ -1651,7 +1619,7 @@ static int lxc_cmd_handler(int fd, uint32_t events, void *data, ...@@ -1651,7 +1619,7 @@ static int lxc_cmd_handler(int fd, uint32_t events, void *data,
.ret = -EPERM, .ret = -EPERM,
}; };
lxc_cmd_rsp_send(fd, &rsp); __lxc_cmd_rsp_send(fd, &rsp);
} }
goto out_close; goto out_close;
......
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