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Diffstat (limited to '')
| -rw-r--r-- | src/core/execute.h | 701 |
1 files changed, 701 insertions, 0 deletions
diff --git a/src/core/execute.h b/src/core/execute.h new file mode 100644 index 0000000..5a6927a --- /dev/null +++ b/src/core/execute.h @@ -0,0 +1,701 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +typedef struct ExecStatus ExecStatus; +typedef struct ExecCommand ExecCommand; +typedef struct ExecContext ExecContext; +typedef struct ExecSharedRuntime ExecSharedRuntime; +typedef struct DynamicCreds DynamicCreds; +typedef struct ExecRuntime ExecRuntime; +typedef struct ExecParameters ExecParameters; +typedef struct Manager Manager; + +#include <sched.h> +#include <stdbool.h> +#include <stdio.h> +#include <sys/capability.h> + +#include "cgroup-util.h" +#include "coredump-util.h" +#include "cpu-set-util.h" +#include "exec-util.h" +#include "fdset.h" +#include "list.h" +#include "missing_resource.h" +#include "namespace.h" +#include "nsflags.h" +#include "numa-util.h" +#include "open-file.h" +#include "path-util.h" +#include "runtime-scope.h" +#include "set.h" +#include "time-util.h" + +#define EXEC_STDIN_DATA_MAX (64U*1024U*1024U) + +typedef enum ExecUtmpMode { + EXEC_UTMP_INIT, + EXEC_UTMP_LOGIN, + EXEC_UTMP_USER, + _EXEC_UTMP_MODE_MAX, + _EXEC_UTMP_MODE_INVALID = -EINVAL, +} ExecUtmpMode; + +typedef enum ExecInput { + EXEC_INPUT_NULL, + EXEC_INPUT_TTY, + EXEC_INPUT_TTY_FORCE, + EXEC_INPUT_TTY_FAIL, + EXEC_INPUT_SOCKET, + EXEC_INPUT_NAMED_FD, + EXEC_INPUT_DATA, + EXEC_INPUT_FILE, + _EXEC_INPUT_MAX, + _EXEC_INPUT_INVALID = -EINVAL, +} ExecInput; + +typedef enum ExecOutput { + EXEC_OUTPUT_INHERIT, + EXEC_OUTPUT_NULL, + EXEC_OUTPUT_TTY, + EXEC_OUTPUT_KMSG, + EXEC_OUTPUT_KMSG_AND_CONSOLE, + EXEC_OUTPUT_JOURNAL, + EXEC_OUTPUT_JOURNAL_AND_CONSOLE, + EXEC_OUTPUT_SOCKET, + EXEC_OUTPUT_NAMED_FD, + EXEC_OUTPUT_FILE, + EXEC_OUTPUT_FILE_APPEND, + EXEC_OUTPUT_FILE_TRUNCATE, + _EXEC_OUTPUT_MAX, + _EXEC_OUTPUT_INVALID = -EINVAL, +} ExecOutput; + +typedef enum ExecPreserveMode { + EXEC_PRESERVE_NO, + EXEC_PRESERVE_YES, + EXEC_PRESERVE_RESTART, + _EXEC_PRESERVE_MODE_MAX, + _EXEC_PRESERVE_MODE_INVALID = -EINVAL, +} ExecPreserveMode; + +typedef enum ExecKeyringMode { + EXEC_KEYRING_INHERIT, + EXEC_KEYRING_PRIVATE, + EXEC_KEYRING_SHARED, + _EXEC_KEYRING_MODE_MAX, + _EXEC_KEYRING_MODE_INVALID = -EINVAL, +} ExecKeyringMode; + +/* Contains start and exit information about an executed command. */ +struct ExecStatus { + dual_timestamp start_timestamp; + dual_timestamp exit_timestamp; + pid_t pid; + int code; /* as in siginfo_t::si_code */ + int status; /* as in siginfo_t::si_status */ +}; + +/* Stores information about commands we execute. Covers both configuration settings as well as runtime data. */ +struct ExecCommand { + char *path; + char **argv; + ExecStatus exec_status; /* Note that this is not serialized to sd-executor */ + ExecCommandFlags flags; + LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */ +}; + +/* Encapsulates certain aspects of the runtime environment that is to be shared between multiple otherwise separate + * invocations of commands. Specifically, this allows sharing of /tmp and /var/tmp data as well as network namespaces + * between invocations of commands. This is a reference counted object, with one reference taken by each currently + * active command invocation that wants to share this runtime. */ +struct ExecSharedRuntime { + unsigned n_ref; + + Manager *manager; + + char *id; /* Unit id of the owner */ + + char *tmp_dir; + char *var_tmp_dir; + + /* An AF_UNIX socket pair, that contains a datagram containing a file descriptor referring to the network + * namespace. */ + int netns_storage_socket[2]; + + /* Like netns_storage_socket, but the file descriptor is referring to the IPC namespace. */ + int ipcns_storage_socket[2]; +}; + +struct ExecRuntime { + ExecSharedRuntime *shared; + DynamicCreds *dynamic_creds; + + /* The path to the ephemeral snapshot of the root directory or root image if one was requested. */ + char *ephemeral_copy; + + /* An AF_UNIX socket pair that receives the locked file descriptor referring to the ephemeral copy of + * the root directory or root image. The lock prevents tmpfiles from removing the ephemeral snapshot + * until we're done using it. */ + int ephemeral_storage_socket[2]; +}; + +typedef enum ExecDirectoryType { + EXEC_DIRECTORY_RUNTIME, + EXEC_DIRECTORY_STATE, + EXEC_DIRECTORY_CACHE, + EXEC_DIRECTORY_LOGS, + EXEC_DIRECTORY_CONFIGURATION, + _EXEC_DIRECTORY_TYPE_MAX, + _EXEC_DIRECTORY_TYPE_INVALID = -EINVAL, +} ExecDirectoryType; + +typedef struct ExecDirectoryItem { + char *path; + char **symlinks; + bool only_create; +} ExecDirectoryItem; + +typedef struct ExecDirectory { + mode_t mode; + size_t n_items; + ExecDirectoryItem *items; +} ExecDirectory; + +typedef enum ExecCleanMask { + /* In case you wonder why the bitmask below doesn't use "directory" in its name: we want to keep this + * generic so that .timer timestamp files can nicely be covered by this too, and similar. */ + EXEC_CLEAN_RUNTIME = 1U << EXEC_DIRECTORY_RUNTIME, + EXEC_CLEAN_STATE = 1U << EXEC_DIRECTORY_STATE, + EXEC_CLEAN_CACHE = 1U << EXEC_DIRECTORY_CACHE, + EXEC_CLEAN_LOGS = 1U << EXEC_DIRECTORY_LOGS, + EXEC_CLEAN_CONFIGURATION = 1U << EXEC_DIRECTORY_CONFIGURATION, + EXEC_CLEAN_FDSTORE = 1U << _EXEC_DIRECTORY_TYPE_MAX, + EXEC_CLEAN_NONE = 0, + EXEC_CLEAN_ALL = (1U << (_EXEC_DIRECTORY_TYPE_MAX+1)) - 1, + _EXEC_CLEAN_MASK_INVALID = -EINVAL, +} ExecCleanMask; + +/* Encodes configuration parameters applied to invoked commands. Does not carry runtime data, but only configuration + * changes sourced from unit files and suchlike. ExecContext objects are usually embedded into Unit objects, and do not + * change after being loaded. */ +struct ExecContext { + char **environment; + char **environment_files; + char **pass_environment; + char **unset_environment; + + struct rlimit *rlimit[_RLIMIT_MAX]; + char *working_directory, *root_directory, *root_image, *root_verity, *root_hash_path, *root_hash_sig_path; + void *root_hash, *root_hash_sig; + size_t root_hash_size, root_hash_sig_size; + LIST_HEAD(MountOptions, root_image_options); + bool root_ephemeral; + bool working_directory_missing_ok:1; + bool working_directory_home:1; + + bool oom_score_adjust_set:1; + bool coredump_filter_set:1; + bool nice_set:1; + bool ioprio_set:1; + bool cpu_sched_set:1; + bool mount_apivfs_set:1; + + /* This is not exposed to the user but available internally. We need it to make sure that whenever we + * spawn /usr/bin/mount it is run in the same process group as us so that the autofs logic detects + * that it belongs to us and we don't enter a trigger loop. */ + bool same_pgrp; + + bool cpu_sched_reset_on_fork; + bool non_blocking; + + mode_t umask; + int oom_score_adjust; + int nice; + int ioprio; + int cpu_sched_policy; + int cpu_sched_priority; + uint64_t coredump_filter; + + CPUSet cpu_set; + NUMAPolicy numa_policy; + bool cpu_affinity_from_numa; + + ExecInput std_input; + ExecOutput std_output; + ExecOutput std_error; + + /* At least one of stdin/stdout/stderr was initialized from an fd passed in. This boolean survives + * the fds being closed. This only makes sense for transient units. */ + bool stdio_as_fds; + + char *stdio_fdname[3]; + char *stdio_file[3]; + + void *stdin_data; + size_t stdin_data_size; + + nsec_t timer_slack_nsec; + + char *tty_path; + + bool tty_reset; + bool tty_vhangup; + bool tty_vt_disallocate; + + unsigned tty_rows; + unsigned tty_cols; + + bool ignore_sigpipe; + + ExecKeyringMode keyring_mode; + + /* Since resolving these names might involve socket + * connections and we don't want to deadlock ourselves these + * names are resolved on execution only and in the child + * process. */ + char *user; + char *group; + char **supplementary_groups; + + int set_login_environment; + + char *pam_name; + + char *utmp_id; + ExecUtmpMode utmp_mode; + + bool no_new_privileges; + + bool selinux_context_ignore; + bool apparmor_profile_ignore; + bool smack_process_label_ignore; + + char *selinux_context; + char *apparmor_profile; + char *smack_process_label; + + char **read_write_paths, **read_only_paths, **inaccessible_paths, **exec_paths, **no_exec_paths; + char **exec_search_path; + unsigned long mount_propagation_flag; + BindMount *bind_mounts; + size_t n_bind_mounts; + TemporaryFileSystem *temporary_filesystems; + size_t n_temporary_filesystems; + MountImage *mount_images; + size_t n_mount_images; + MountImage *extension_images; + size_t n_extension_images; + char **extension_directories; + + uint64_t capability_bounding_set; + uint64_t capability_ambient_set; + int secure_bits; + + int syslog_priority; + bool syslog_level_prefix; + char *syslog_identifier; + + struct iovec* log_extra_fields; + size_t n_log_extra_fields; + Set *log_filter_allowed_patterns; + Set *log_filter_denied_patterns; + + usec_t log_ratelimit_interval_usec; + unsigned log_ratelimit_burst; + + int log_level_max; + + char *log_namespace; + + ProtectProc protect_proc; /* hidepid= */ + ProcSubset proc_subset; /* subset= */ + + int private_mounts; + int memory_ksm; + bool private_tmp; + bool private_network; + bool private_devices; + bool private_users; + bool private_ipc; + bool protect_kernel_tunables; + bool protect_kernel_modules; + bool protect_kernel_logs; + bool protect_clock; + bool protect_control_groups; + ProtectSystem protect_system; + ProtectHome protect_home; + bool protect_hostname; + bool mount_apivfs; + + bool dynamic_user; + bool remove_ipc; + + bool memory_deny_write_execute; + bool restrict_realtime; + bool restrict_suid_sgid; + + bool lock_personality; + unsigned long personality; + + unsigned long restrict_namespaces; /* The CLONE_NEWxyz flags permitted to the unit's processes */ + + Set *restrict_filesystems; + bool restrict_filesystems_allow_list:1; + + Hashmap *syscall_filter; + Set *syscall_archs; + int syscall_errno; + bool syscall_allow_list:1; + + Hashmap *syscall_log; + bool syscall_log_allow_list:1; /* Log listed system calls */ + + bool address_families_allow_list:1; + Set *address_families; + + char *network_namespace_path; + char *ipc_namespace_path; + + ExecDirectory directories[_EXEC_DIRECTORY_TYPE_MAX]; + ExecPreserveMode runtime_directory_preserve_mode; + usec_t timeout_clean_usec; + + Hashmap *set_credentials; /* output id → ExecSetCredential */ + Hashmap *load_credentials; /* output id → ExecLoadCredential */ + Set *import_credentials; + + ImagePolicy *root_image_policy, *mount_image_policy, *extension_image_policy; +}; + +static inline bool exec_context_restrict_namespaces_set(const ExecContext *c) { + assert(c); + + return (c->restrict_namespaces & NAMESPACE_FLAGS_ALL) != NAMESPACE_FLAGS_ALL; +} + +static inline bool exec_context_restrict_filesystems_set(const ExecContext *c) { + assert(c); + + return c->restrict_filesystems_allow_list || + !set_isempty(c->restrict_filesystems); +} + +static inline bool exec_context_with_rootfs(const ExecContext *c) { + assert(c); + + /* Checks if RootDirectory= or RootImage= are used */ + + return !empty_or_root(c->root_directory) || c->root_image; +} + +typedef enum ExecFlags { + EXEC_APPLY_SANDBOXING = 1 << 0, + EXEC_APPLY_CHROOT = 1 << 1, + EXEC_APPLY_TTY_STDIN = 1 << 2, + EXEC_PASS_LOG_UNIT = 1 << 3, /* Whether to pass the unit name to the service's journal stream connection */ + EXEC_CHOWN_DIRECTORIES = 1 << 4, /* chown() the runtime/state/cache/log directories to the user we run as, under all conditions */ + EXEC_NSS_DYNAMIC_BYPASS = 1 << 5, /* Set the SYSTEMD_NSS_DYNAMIC_BYPASS environment variable, to disable nss-systemd blocking on PID 1, for use by dbus-daemon */ + EXEC_CGROUP_DELEGATE = 1 << 6, + EXEC_IS_CONTROL = 1 << 7, + EXEC_CONTROL_CGROUP = 1 << 8, /* Place the process not in the indicated cgroup but in a subcgroup '/.control', but only EXEC_CGROUP_DELEGATE and EXEC_IS_CONTROL is set, too */ + EXEC_WRITE_CREDENTIALS = 1 << 9, /* Set up the credential store logic */ + + /* The following are not used by execute.c, but by consumers internally */ + EXEC_PASS_FDS = 1 << 10, + EXEC_SETENV_RESULT = 1 << 11, + EXEC_SET_WATCHDOG = 1 << 12, + EXEC_SETENV_MONITOR_RESULT = 1 << 13, /* Pass exit status to OnFailure= and OnSuccess= dependencies. */ +} ExecFlags; + +/* Parameters for a specific invocation of a command. This structure is put together right before a command is + * executed. */ +struct ExecParameters { + RuntimeScope runtime_scope; + + char **environment; + + int *fds; + char **fd_names; + size_t n_socket_fds; + size_t n_storage_fds; + + ExecFlags flags; + bool selinux_context_net:1; + + CGroupMask cgroup_supported; + char *cgroup_path; + uint64_t cgroup_id; + + char **prefix; + char *received_credentials_directory; + char *received_encrypted_credentials_directory; + + char *confirm_spawn; + bool shall_confirm_spawn; + + usec_t watchdog_usec; + + int *idle_pipe; + + int stdin_fd; + int stdout_fd; + int stderr_fd; + + /* An fd that is closed by the execve(), and thus will result in EOF when the execve() is done */ + int exec_fd; + + char *notify_socket; + + LIST_HEAD(OpenFile, open_files); + + char *fallback_smack_process_label; + + char **files_env; + int user_lookup_fd; + int bpf_outer_map_fd; + + /* Used for logging in the executor functions */ + char *unit_id; + sd_id128_t invocation_id; + char invocation_id_string[SD_ID128_STRING_MAX]; +}; + +#define EXEC_PARAMETERS_INIT(_flags) \ + (ExecParameters) { \ + .flags = (_flags), \ + .stdin_fd = -EBADF, \ + .stdout_fd = -EBADF, \ + .stderr_fd = -EBADF, \ + .exec_fd = -EBADF, \ + .bpf_outer_map_fd = -EBADF, \ + .user_lookup_fd = -EBADF, \ + }; + +#include "unit.h" +#include "dynamic-user.h" + +int exec_spawn(Unit *unit, + ExecCommand *command, + const ExecContext *context, + ExecParameters *exec_params, + ExecRuntime *runtime, + const CGroupContext *cgroup_context, + pid_t *ret); + +void exec_command_done(ExecCommand *c); +void exec_command_done_array(ExecCommand *c, size_t n); +ExecCommand* exec_command_free_list(ExecCommand *c); +void exec_command_free_array(ExecCommand **c, size_t n); +void exec_command_reset_status_array(ExecCommand *c, size_t n); +void exec_command_reset_status_list_array(ExecCommand **c, size_t n); +void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix); +void exec_command_append_list(ExecCommand **l, ExecCommand *e); +int exec_command_set(ExecCommand *c, const char *path, ...) _sentinel_; +int exec_command_append(ExecCommand *c, const char *path, ...) _sentinel_; + +void exec_context_init(ExecContext *c); +void exec_context_done(ExecContext *c); +void exec_context_dump(const ExecContext *c, FILE* f, const char *prefix); + +int exec_context_destroy_runtime_directory(const ExecContext *c, const char *runtime_root); +int exec_context_destroy_mount_ns_dir(Unit *u); + +const char* exec_context_fdname(const ExecContext *c, int fd_index); + +bool exec_context_may_touch_console(const ExecContext *c); +bool exec_context_maintains_privileges(const ExecContext *c); + +int exec_context_get_effective_ioprio(const ExecContext *c); +bool exec_context_get_effective_mount_apivfs(const ExecContext *c); + +void exec_context_free_log_extra_fields(ExecContext *c); + +void exec_context_revert_tty(ExecContext *c); + +int exec_context_get_clean_directories(ExecContext *c, char **prefix, ExecCleanMask mask, char ***ret); +int exec_context_get_clean_mask(ExecContext *c, ExecCleanMask *ret); + +const char *exec_context_tty_path(const ExecContext *context); +int exec_context_apply_tty_size(const ExecContext *context, int tty_fd, const char *tty_path); +void exec_context_tty_reset(const ExecContext *context, const ExecParameters *p); + +uint64_t exec_context_get_rlimit(const ExecContext *c, const char *name); +int exec_context_get_oom_score_adjust(const ExecContext *c); +uint64_t exec_context_get_coredump_filter(const ExecContext *c); +int exec_context_get_nice(const ExecContext *c); +int exec_context_get_cpu_sched_policy(const ExecContext *c); +int exec_context_get_cpu_sched_priority(const ExecContext *c); +uint64_t exec_context_get_timer_slack_nsec(const ExecContext *c); +char** exec_context_get_syscall_filter(const ExecContext *c); +char** exec_context_get_syscall_archs(const ExecContext *c); +char** exec_context_get_syscall_log(const ExecContext *c); +char** exec_context_get_address_families(const ExecContext *c); +char** exec_context_get_restrict_filesystems(const ExecContext *c); + +void exec_status_start(ExecStatus *s, pid_t pid); +void exec_status_exit(ExecStatus *s, const ExecContext *context, pid_t pid, int code, int status); +void exec_status_dump(const ExecStatus *s, FILE *f, const char *prefix); +void exec_status_reset(ExecStatus *s); + +int exec_shared_runtime_acquire(Manager *m, const ExecContext *c, const char *name, bool create, ExecSharedRuntime **ret); +ExecSharedRuntime *exec_shared_runtime_destroy(ExecSharedRuntime *r); +ExecSharedRuntime *exec_shared_runtime_unref(ExecSharedRuntime *r); +DEFINE_TRIVIAL_CLEANUP_FUNC(ExecSharedRuntime*, exec_shared_runtime_unref); + +int exec_shared_runtime_serialize(const Manager *m, FILE *f, FDSet *fds); +int exec_shared_runtime_deserialize_compat(Unit *u, const char *key, const char *value, FDSet *fds); +int exec_shared_runtime_deserialize_one(Manager *m, const char *value, FDSet *fds); +void exec_shared_runtime_done(ExecSharedRuntime *rt); +void exec_shared_runtime_vacuum(Manager *m); + +int exec_runtime_make(const Unit *unit, const ExecContext *context, ExecSharedRuntime *shared, DynamicCreds *creds, ExecRuntime **ret); +ExecRuntime* exec_runtime_free(ExecRuntime *rt); +DEFINE_TRIVIAL_CLEANUP_FUNC(ExecRuntime*, exec_runtime_free); +ExecRuntime* exec_runtime_destroy(ExecRuntime *rt); +void exec_runtime_clear(ExecRuntime *rt); + +int exec_params_get_cgroup_path(const ExecParameters *params, const CGroupContext *c, char **ret); +void exec_params_shallow_clear(ExecParameters *p); +void exec_params_dump(const ExecParameters *p, FILE* f, const char *prefix); +void exec_params_deep_clear(ExecParameters *p); + +bool exec_context_get_cpu_affinity_from_numa(const ExecContext *c); + +void exec_directory_done(ExecDirectory *d); +int exec_directory_add(ExecDirectory *d, const char *path, const char *symlink); +void exec_directory_sort(ExecDirectory *d); +bool exec_directory_is_private(const ExecContext *context, ExecDirectoryType type); + +ExecCleanMask exec_clean_mask_from_string(const char *s); + +const char* exec_output_to_string(ExecOutput i) _const_; +ExecOutput exec_output_from_string(const char *s) _pure_; + +const char* exec_input_to_string(ExecInput i) _const_; +ExecInput exec_input_from_string(const char *s) _pure_; + +const char* exec_utmp_mode_to_string(ExecUtmpMode i) _const_; +ExecUtmpMode exec_utmp_mode_from_string(const char *s) _pure_; + +const char* exec_preserve_mode_to_string(ExecPreserveMode i) _const_; +ExecPreserveMode exec_preserve_mode_from_string(const char *s) _pure_; + +const char* exec_keyring_mode_to_string(ExecKeyringMode i) _const_; +ExecKeyringMode exec_keyring_mode_from_string(const char *s) _pure_; + +const char* exec_directory_type_to_string(ExecDirectoryType i) _const_; +ExecDirectoryType exec_directory_type_from_string(const char *s) _pure_; + +const char* exec_directory_type_symlink_to_string(ExecDirectoryType i) _const_; +ExecDirectoryType exec_directory_type_symlink_from_string(const char *s) _pure_; + +const char* exec_directory_type_mode_to_string(ExecDirectoryType i) _const_; +ExecDirectoryType exec_directory_type_mode_from_string(const char *s) _pure_; + +const char* exec_resource_type_to_string(ExecDirectoryType i) _const_; +ExecDirectoryType exec_resource_type_from_string(const char *s) _pure_; + +bool exec_needs_mount_namespace(const ExecContext *context, const ExecParameters *params, const ExecRuntime *runtime); +bool exec_needs_network_namespace(const ExecContext *context); +bool exec_needs_ipc_namespace(const ExecContext *context); + +/* These logging macros do the same logging as those in unit.h, but using ExecContext and ExecParameters + * instead of the unit object, so that it can be used in the sd-executor context (where the unit object is + * not available). */ + +#define LOG_EXEC_ID_FIELD(ep) \ + ((ep)->runtime_scope == RUNTIME_SCOPE_USER ? "USER_UNIT=" : "UNIT=") +#define LOG_EXEC_ID_FIELD_FORMAT(ep) \ + ((ep)->runtime_scope == RUNTIME_SCOPE_USER ? "USER_UNIT=%s" : "UNIT=%s") +#define LOG_EXEC_INVOCATION_ID_FIELD(ep) \ + ((ep)->runtime_scope == RUNTIME_SCOPE_USER ? "USER_INVOCATION_ID=" : "INVOCATION_ID=") +#define LOG_EXEC_INVOCATION_ID_FIELD_FORMAT(ep) \ + ((ep)->runtime_scope == RUNTIME_SCOPE_USER ? "USER_INVOCATION_ID=%s" : "INVOCATION_ID=%s") + +#define log_exec_full_errno_zerook(ec, ep, level, error, ...) \ + ({ \ + const ExecContext *_c = (ec); \ + const ExecParameters *_p = (ep); \ + const int _l = (level); \ + bool _do_log = !(log_get_max_level() < LOG_PRI(_l) || \ + !(_c->log_level_max < 0 || \ + _c->log_level_max >= LOG_PRI(_l))); \ + LOG_CONTEXT_PUSH_IOV(_c->log_extra_fields, \ + _c->n_log_extra_fields); \ + !_do_log ? -ERRNO_VALUE(error) : \ + log_object_internal(_l, error, PROJECT_FILE, \ + __LINE__, __func__, \ + LOG_EXEC_ID_FIELD(_p), \ + _p->unit_id, \ + LOG_EXEC_INVOCATION_ID_FIELD(_p), \ + _p->invocation_id_string, ##__VA_ARGS__); \ + }) + +#define log_exec_full_errno(ec, ep, level, error, ...) \ + ({ \ + int _error = (error); \ + ASSERT_NON_ZERO(_error); \ + log_exec_full_errno_zerook(ec, ep, level, _error, ##__VA_ARGS__); \ + }) + +#define log_exec_full(ec, ep, level, ...) (void) log_exec_full_errno_zerook(ec, ep, level, 0, __VA_ARGS__) + +#define log_exec_debug(ec, ep, ...) log_exec_full(ec, ep, LOG_DEBUG, __VA_ARGS__) +#define log_exec_info(ec, ep, ...) log_exec_full(ec, ep, LOG_INFO, __VA_ARGS__) +#define log_exec_notice(ec, ep, ...) log_exec_full(ec, ep, LOG_NOTICE, __VA_ARGS__) +#define log_exec_warning(ec, ep, ...) log_exec_full(ec, ep, LOG_WARNING, __VA_ARGS__) +#define log_exec_error(ec, ep, ...) log_exec_full(ec, ep, LOG_ERR, __VA_ARGS__) + +#define log_exec_debug_errno(ec, ep, error, ...) log_exec_full_errno(ec, ep, LOG_DEBUG, error, __VA_ARGS__) +#define log_exec_info_errno(ec, ep, error, ...) log_exec_full_errno(ec, ep, LOG_INFO, error, __VA_ARGS__) +#define log_exec_notice_errno(ec, ep, error, ...) log_exec_full_errno(ec, ep, LOG_NOTICE, error, __VA_ARGS__) +#define log_exec_warning_errno(ec, ep, error, ...) log_exec_full_errno(ec, ep, LOG_WARNING, error, __VA_ARGS__) +#define log_exec_error_errno(ec, ep, error, ...) log_exec_full_errno(ec, ep, LOG_ERR, error, __VA_ARGS__) + +#define log_exec_struct_errno(ec, ep, level, error, ...) \ + ({ \ + const ExecContext *_c = (ec); \ + const ExecParameters *_p = (ep); \ + const int _l = (level); \ + bool _do_log = !(_c->log_level_max < 0 || \ + _c->log_level_max >= LOG_PRI(_l)); \ + LOG_CONTEXT_PUSH_IOV(_c->log_extra_fields, \ + _c->n_log_extra_fields); \ + _do_log ? \ + log_struct_errno(_l, error, __VA_ARGS__, LOG_EXEC_ID_FIELD_FORMAT(_p), _p->unit_id) : \ + -ERRNO_VALUE(error); \ + }) + +#define log_exec_struct(ec, ep, level, ...) log_exec_struct_errno(ec, ep, level, 0, __VA_ARGS__) + +#define log_exec_struct_iovec_errno(ec, ep, level, error, iovec, n_iovec) \ + ({ \ + const ExecContext *_c = (ec); \ + const ExecParameters *_p = (ep); \ + const int _l = (level); \ + bool _do_log = !(_c->log_level_max < 0 || \ + _c->log_level_max >= LOG_PRI(_l)); \ + LOG_CONTEXT_PUSH_IOV(_c->log_extra_fields, \ + _c->n_log_extra_fields); \ + _do_log ? \ + log_struct_iovec_errno(_l, error, iovec, n_iovec) : \ + -ERRNO_VALUE(error); \ + }) + +#define log_exec_struct_iovec(ec, ep, level, iovec, n_iovec) log_exec_struct_iovec_errno(ec, ep, level, 0, iovec, n_iovec) + +/* Like LOG_MESSAGE(), but with the unit name prefixed. */ +#define LOG_EXEC_MESSAGE(ep, fmt, ...) LOG_MESSAGE("%s: " fmt, (ep)->unit_id, ##__VA_ARGS__) +#define LOG_EXEC_ID(ep) LOG_EXEC_ID_FIELD_FORMAT(ep), (ep)->unit_id +#define LOG_EXEC_INVOCATION_ID(ep) LOG_EXEC_INVOCATION_ID_FIELD_FORMAT(ep), (ep)->invocation_id_string + +#define _LOG_CONTEXT_PUSH_EXEC(ec, ep, p, c) \ + const ExecContext *c = (ec); \ + const ExecParameters *p = (ep); \ + LOG_CONTEXT_PUSH_KEY_VALUE(LOG_EXEC_ID_FIELD(p), p->unit_id); \ + LOG_CONTEXT_PUSH_KEY_VALUE(LOG_EXEC_INVOCATION_ID_FIELD(p), p->invocation_id_string); \ + LOG_CONTEXT_PUSH_IOV(c->log_extra_fields, c->n_log_extra_fields) + +#define LOG_CONTEXT_PUSH_EXEC(ec, ep) \ + _LOG_CONTEXT_PUSH_EXEC(ec, ep, UNIQ_T(p, UNIQ), UNIQ_T(c, UNIQ)) |