diff options
Diffstat (limited to 'epan/dissectors/packet-systemd-journal.c')
| -rw-r--r-- | epan/dissectors/packet-systemd-journal.c | 916 |
1 files changed, 916 insertions, 0 deletions
diff --git a/epan/dissectors/packet-systemd-journal.c b/epan/dissectors/packet-systemd-journal.c new file mode 100644 index 00000000..afc9bdd6 --- /dev/null +++ b/epan/dissectors/packet-systemd-journal.c @@ -0,0 +1,916 @@ +/* packet-systemd-journal.c + * Routines for systemd journal export (application/vnd.fdo.journal) dissection + * Copyright 2018, Gerald Combs <gerald@wireshark.org> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +/* + * Dissector for systemd's mostly-text-based Journal Export Format described + * at https://www.freedesktop.org/wiki/Software/systemd/export/. + * + * Registered MIME type: application/vnd.fdo.journal + * + * To do: + * - Rename systemd_journal to sdjournal? It's easier to type. + * - Add an extcap module. + * - Add errno strings. + * - Pretty-print _CAP_EFFECTIVE + * - Handle Journal JSON Format? https://www.freedesktop.org/wiki/Software/systemd/json/ + * - Handle raw journal files? https://www.freedesktop.org/wiki/Software/systemd/journal-files/ + */ + +#include <config.h> + +#include <epan/exceptions.h> +#include <epan/packet.h> +#include <epan/expert.h> +#include <wiretap/wtap.h> +#include <wsutil/strtoi.h> + +#include "packet-syslog.h" + +#define PNAME "systemd Journal Entry" +#define PSNAME "systemd Journal" +#define PFNAME "systemd_journal" + +void proto_reg_handoff_systemd_journal(void); +void proto_register_systemd_journal(void); + +/* Initialize the protocol and registered fields */ +static int proto_systemd_journal = -1; + +// Official entries, listed in +// https://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html +// as of 2018-08. +static int hf_sj_message = -1; +static int hf_sj_message_id = -1; +static int hf_sj_priority = -1; +static int hf_sj_code_file = -1; +static int hf_sj_code_line = -1; +static int hf_sj_code_func = -1; +static int hf_sj_errno = -1; +static int hf_sj_syslog_facility = -1; +static int hf_sj_syslog_identifier = -1; +static int hf_sj_syslog_pid = -1; + +static int hf_sj_pid = -1; +static int hf_sj_uid = -1; +static int hf_sj_gid = -1; +static int hf_sj_comm = -1; +static int hf_sj_exe = -1; +static int hf_sj_cmdline = -1; +static int hf_sj_cap_effective = -1; +static int hf_sj_audit_session = -1; +static int hf_sj_audit_loginuid = -1; +static int hf_sj_systemd_cgroup = -1; +static int hf_sj_systemd_slice = -1; +static int hf_sj_systemd_unit = -1; +static int hf_sj_systemd_user_unit = -1; +static int hf_sj_systemd_session = -1; +static int hf_sj_systemd_owner_uid = -1; + +static int hf_sj_selinux_context = -1; +static int hf_sj_source_realtime_timestamp = -1; +static int hf_sj_boot_id = -1; +static int hf_sj_machine_id = -1; +static int hf_sj_systemd_invocation_id = -1; +static int hf_sj_hostname = -1; +static int hf_sj_transport = -1; +static int hf_sj_stream_id = -1; +static int hf_sj_line_break = -1; + +static int hf_sj_kernel_device = -1; +static int hf_sj_kernel_subsystem = -1; +static int hf_sj_udev_sysname = -1; +static int hf_sj_udev_devnode = -1; +static int hf_sj_udev_devlink = -1; + +static int hf_sj_coredump_unit = -1; +static int hf_sj_coredump_user_unit = -1; +static int hf_sj_object_pid = -1; +static int hf_sj_object_uid = -1; +static int hf_sj_object_gid = -1; +static int hf_sj_object_comm = -1; +static int hf_sj_object_exe = -1; +static int hf_sj_object_cmdline = -1; +static int hf_sj_object_audit_session = -1; +static int hf_sj_object_audit_loginuid = -1; +static int hf_sj_object_cap_effective = -1; +static int hf_sj_object_selinux_context = -1; +static int hf_sj_object_systemd_cgroup = -1; +static int hf_sj_object_systemd_session = -1; +static int hf_sj_object_systemd_owner_uid = -1; +static int hf_sj_object_systemd_unit = -1; +static int hf_sj_object_systemd_user_unit = -1; +static int hf_sj_object_systemd_slice = -1; +static int hf_sj_object_systemd_user_slice = -1; +static int hf_sj_object_systemd_invocation_id = -1; + +static int hf_sj_cursor = -1; +static int hf_sj_realtime_timestamp = -1; +static int hf_sj_monotonic_timestamp = -1; + +// Unofficial(?) fields. Not listed in the documentation but present in logs. +static int hf_sj_result = -1; +static int hf_sj_source_monotonic_timestamp = -1; +static int hf_sj_journal_name = -1; +static int hf_sj_journal_path = -1; +static int hf_sj_current_use = -1; +static int hf_sj_current_use_pretty = -1; +static int hf_sj_max_use = -1; +static int hf_sj_max_use_pretty = -1; +static int hf_sj_disk_keep_free = -1; +static int hf_sj_disk_keep_free_pretty = -1; +static int hf_sj_disk_available = -1; +static int hf_sj_disk_available_pretty = -1; +static int hf_sj_limit = -1; +static int hf_sj_limit_pretty = -1; +static int hf_sj_available = -1; +static int hf_sj_available_pretty = -1; +static int hf_sj_audit_type = -1; +static int hf_sj_audit_id = -1; +static int hf_sj_audit_field_apparmor = -1; +static int hf_sj_audit_field_operation = -1; +static int hf_sj_audit_field_profile = -1; +static int hf_sj_audit_field_name = -1; +static int hf_sj_seat_id = -1; +static int hf_sj_kernel_usec = -1; +static int hf_sj_userspace_usec = -1; +static int hf_sj_session_id = -1; +static int hf_sj_user_id = -1; +static int hf_sj_leader = -1; +static int hf_sj_job_type = -1; +static int hf_sj_job_result = -1; +static int hf_sj_user_invocation_id = -1; +static int hf_sj_systemd_user_slice = -1; + +// Metadata. +static int hf_sj_binary_data_len = -1; +static int hf_sj_unknown_field = -1; +static int hf_sj_unknown_field_name = -1; +static int hf_sj_unknown_field_value = -1; +static int hf_sj_unknown_field_data = -1; +static int hf_sj_unhandled_field_type = -1; + +static expert_field ei_unhandled_field_type = EI_INIT; +static expert_field ei_nonbinary_field = EI_INIT; +static expert_field ei_undecoded_field = EI_INIT; + +static dissector_handle_t sje_handle = NULL; + +#define MAX_DATA_SIZE 262144 // WTAP_MAX_PACKET_SIZE_STANDARD. Increase if needed. + +/* Initialize the subtree pointers */ +static gint ett_systemd_journal_entry = -1; +static gint ett_systemd_binary_data = -1; +static gint ett_systemd_unknown_field = -1; + +// XXX Use a value_string instead? +typedef struct _journal_field_hf_map { + int hfid; + const char *name; +} journal_field_hf_map; + +static journal_field_hf_map *jf_to_hf; + +static void init_jf_to_hf_map(void) { + journal_field_hf_map jhmap[] = { + // Official. + { hf_sj_message, "MESSAGE=" }, + { hf_sj_message_id, "MESSAGE_ID=" }, + { hf_sj_priority, "PRIORITY=" }, + { hf_sj_code_file, "CODE_FILE=" }, + { hf_sj_code_line, "CODE_LINE=" }, + { hf_sj_code_func, "CODE_FUNC=" }, + { hf_sj_result, "RESULT=" }, + { hf_sj_errno, "ERRNO=" }, + { hf_sj_syslog_facility, "SYSLOG_FACILITY=" }, + { hf_sj_syslog_identifier, "SYSLOG_IDENTIFIER=" }, + { hf_sj_syslog_pid, "SYSLOG_PID=" }, + + { hf_sj_pid, "_PID=" }, + { hf_sj_uid, "_UID=" }, + { hf_sj_gid, "_GID=" }, + { hf_sj_comm, "_COMM=" }, + { hf_sj_exe, "_EXE=" }, + { hf_sj_cmdline, "_CMDLINE=" }, + { hf_sj_cap_effective, "_CAP_EFFECTIVE=" }, + { hf_sj_audit_session, "_AUDIT_SESSION=" }, + { hf_sj_audit_loginuid, "_AUDIT_LOGINUID=" }, + { hf_sj_systemd_cgroup, "_SYSTEMD_CGROUP=" }, + { hf_sj_systemd_slice, "_SYSTEMD_SLICE=" }, + { hf_sj_systemd_unit, "_SYSTEMD_UNIT=" }, + { hf_sj_systemd_user_unit, "_SYSTEMD_USER_UNIT=" }, + { hf_sj_systemd_session, "_SYSTEMD_SESSION=" }, + { hf_sj_systemd_owner_uid, "_SYSTEMD_OWNER_UID=" }, + + { hf_sj_selinux_context, "_SELINUX_CONTEXT=" }, + { hf_sj_source_realtime_timestamp, "_SOURCE_REALTIME_TIMESTAMP=" }, + { hf_sj_source_monotonic_timestamp, "_SOURCE_MONOTONIC_TIMESTAMP=" }, + { hf_sj_boot_id, "_BOOT_ID=" }, + { hf_sj_machine_id, "_MACHINE_ID=" }, + { hf_sj_systemd_invocation_id, "_SYSTEMD_INVOCATION_ID=" }, + { hf_sj_hostname, "_HOSTNAME=" }, + { hf_sj_transport, "_TRANSPORT=" }, + { hf_sj_stream_id, "_STREAM_ID=" }, + { hf_sj_line_break, "_LINE_BREAK=" }, + + { hf_sj_kernel_device, "_KERNEL_DEVICE=" }, + { hf_sj_kernel_subsystem, "_KERNEL_SUBSYSTEM=" }, + { hf_sj_udev_sysname, "_UDEV_SYSNAME=" }, + { hf_sj_udev_devnode, "_UDEV_DEVNODE=" }, + { hf_sj_udev_devlink, "_UDEV_DEVLINK=" }, + + { hf_sj_coredump_unit, "COREDUMP_UNIT=" }, + { hf_sj_coredump_user_unit, "COREDUMP_USER_UNIT=" }, + { hf_sj_object_pid, "OBJECT_PID=" }, + { hf_sj_object_uid, "OBJECT_UID=" }, + { hf_sj_object_gid, "OBJECT_GID=" }, + { hf_sj_object_comm, "OBJECT_COMM=" }, + { hf_sj_object_exe, "OBJECT_EXE=" }, + { hf_sj_object_cmdline, "OBJECT_CMDLINE=" }, + { hf_sj_object_audit_session, "OBJECT_AUDIT_SESSION=" }, + { hf_sj_object_audit_loginuid, "OBJECT_AUDIT_LOGINUID=" }, + { hf_sj_object_cap_effective, "OBJECT_CAP_EFFECTIVE=" }, + { hf_sj_object_selinux_context, "OBJECT_SELINUX_CONTEXT=" }, + { hf_sj_object_systemd_cgroup, "OBJECT_SYSTEMD_CGROUP=" }, + { hf_sj_object_systemd_session, "OBJECT_SYSTEMD_SESSION=" }, + { hf_sj_object_systemd_owner_uid, "OBJECT_SYSTEMD_OWNER_UID=" }, + { hf_sj_object_systemd_unit, "OBJECT_SYSTEMD_UNIT=" }, + { hf_sj_object_systemd_user_unit, "OBJECT_SYSTEMD_USER_UNIT=" }, + { hf_sj_object_systemd_slice, "OBJECT_SYSTEMD_SLICE=" }, + { hf_sj_object_systemd_user_slice, "OBJECT_SYSTEMD_USER_SLICE=" }, + { hf_sj_object_systemd_invocation_id, "OBJECT_SYSTEMD_INVOCATION_ID=" }, + + { hf_sj_cursor, "__CURSOR=" }, + { hf_sj_realtime_timestamp, "__REALTIME_TIMESTAMP=" }, + { hf_sj_monotonic_timestamp, "__MONOTONIC_TIMESTAMP=" }, + + // Unofficial? + { hf_sj_journal_name, "JOURNAL_NAME=" }, // systemd-journald: Runtime journal (/run/log/journal/) is ... + { hf_sj_journal_path, "JOURNAL_PATH=" }, // "" + { hf_sj_current_use, "CURRENT_USE=" }, // "" + { hf_sj_current_use_pretty, "CURRENT_USE_PRETTY=" }, // "" + { hf_sj_max_use, "MAX_USE=" }, // "" + { hf_sj_max_use_pretty, "MAX_USE_PRETTY=" }, // "" + { hf_sj_disk_keep_free, "DISK_KEEP_FREE=" }, // "" + { hf_sj_disk_keep_free_pretty, "DISK_KEEP_FREE_PRETTY=" }, // "" + { hf_sj_disk_available, "DISK_AVAILABLE=" }, // "" + { hf_sj_disk_available_pretty, "DISK_AVAILABLE_PRETTY=" }, // "" + { hf_sj_limit, "LIMIT=" }, // "" + { hf_sj_limit_pretty, "LIMIT_PRETTY=" }, // "" + { hf_sj_available, "AVAILABLE=" }, // "" + { hf_sj_available_pretty, "AVAILABLE_PRETTY=" }, // "" + { hf_sj_code_func, "CODE_FUNCTION=" }, // Dup / alias of CODE_FUNC? + { hf_sj_systemd_user_unit, "UNIT=" }, // Dup / alias of _SYSTEMD_UNIT? + { hf_sj_systemd_user_unit, "USER_UNIT=" }, // Dup / alias of _SYSTEMD_USER_UNIT? + { hf_sj_audit_type, "_AUDIT_TYPE=" }, + { hf_sj_audit_id, "_AUDIT_ID=" }, + { hf_sj_audit_field_apparmor, "_AUDIT_FIELD_APPARMOR=" }, + { hf_sj_audit_field_operation, "_AUDIT_FIELD_OPERATION=" }, + { hf_sj_audit_field_profile, "_AUDIT_FIELD_PROFILE=" }, + { hf_sj_audit_field_name, "_AUDIT_FIELD_NAME=" }, + { hf_sj_seat_id, "SEAT_ID=" }, + { hf_sj_kernel_usec, "KERNEL_USEC=" }, + { hf_sj_userspace_usec, "USERSPACE_USEC" }, + { hf_sj_session_id, "SESSION_ID" }, + { hf_sj_user_id, "USER_ID" }, + { hf_sj_leader, "LEADER" }, + { hf_sj_job_type, "JOB_TYPE" }, + { hf_sj_job_result, "JOB_RESULT" }, + { hf_sj_user_invocation_id, "USER_INVOCATION_ID" }, + { hf_sj_systemd_user_slice, "_SYSTEMD_USER_SLICE=" }, + { 0, NULL } + }; + jf_to_hf = (journal_field_hf_map*) g_memdup2(jhmap, sizeof(jhmap)); +} + +static void +dissect_sjle_time_usecs(proto_tree *tree, int hf_idx, tvbuff_t *tvb, int offset, int len) { + guint64 rt_ts = 0; + char *time_str = tvb_format_text(wmem_packet_scope(), tvb, offset, len); + gboolean ok = ws_strtou64(time_str, NULL, &rt_ts); + if (ok) { + nstime_t ts; + ts.secs = (time_t) (rt_ts / 1000000); + ts.nsecs = (rt_ts % 1000000) * 1000; + proto_tree_add_time(tree, hf_idx, tvb, offset, len, &ts); + } else { + proto_tree_add_expert_format(tree, NULL, &ei_undecoded_field, tvb, offset, len, "Invalid time value %s", time_str); + } +} + +static void +dissect_sjle_uint(proto_tree *tree, int hf_idx, tvbuff_t *tvb, int offset, int len) { + guint32 uint_val = (guint32) strtoul(tvb_format_text(wmem_packet_scope(), tvb, offset, len), NULL, 10); + proto_tree_add_uint(tree, hf_idx, tvb, offset, len, uint_val); +} + +static void +dissect_sjle_int(proto_tree *tree, int hf_idx, tvbuff_t *tvb, int offset, int len) { + gint32 int_val = (gint32) strtol(tvb_format_text(wmem_packet_scope(), tvb, offset, len), NULL, 10); + proto_tree_add_int(tree, hf_idx, tvb, offset, len, int_val); +} + +/* Dissect a line-based journal export entry */ +static int +dissect_systemd_journal_line_entry(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, + void *data _U_) +{ + proto_item *ti; + proto_tree *sje_tree; + int offset = 0, next_offset = 0; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, PSNAME); + col_clear(pinfo->cinfo, COL_INFO); + col_set_str(pinfo->cinfo, COL_INFO, "Journal Entry"); + + ti = proto_tree_add_item(tree, proto_systemd_journal, tvb, 0, -1, ENC_NA); + sje_tree = proto_item_add_subtree(ti, ett_systemd_journal_entry); + + while (tvb_offset_exists(tvb, offset)) { + int line_len = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE); + if (line_len < 3) { + // Invalid or zero length. + // XXX Add an expert item for non-empty lines. + offset = next_offset; + continue; + } + gboolean found = FALSE; + int eq_off = tvb_find_guint8(tvb, offset, line_len, '=') + 1; + int val_len = offset + line_len - eq_off; + + for (int i = 0; jf_to_hf[i].name; i++) { + if (tvb_memeql(tvb, offset, (const guint8*) jf_to_hf[i].name, strlen(jf_to_hf[i].name)) == 0) { + int hf_idx = jf_to_hf[i].hfid; + switch (proto_registrar_get_ftype(hf_idx)) { + case FT_ABSOLUTE_TIME: + case FT_RELATIVE_TIME: + dissect_sjle_time_usecs(sje_tree, hf_idx, tvb, eq_off, val_len); + break; + case FT_UINT32: + case FT_UINT16: + case FT_UINT8: + dissect_sjle_uint(sje_tree, hf_idx, tvb, eq_off, val_len); + break; + case FT_INT32: + case FT_INT16: + case FT_INT8: + dissect_sjle_int(sje_tree, hf_idx, tvb, eq_off, val_len); + break; + case FT_STRING: + proto_tree_add_item(sje_tree, jf_to_hf[i].hfid, tvb, eq_off, val_len, ENC_UTF_8|ENC_NA); + break; + default: + { + proto_item *expert_ti = proto_tree_add_item(sje_tree, hf_sj_unhandled_field_type, tvb, offset, line_len, + ENC_UTF_8); + expert_add_info(pinfo, expert_ti, &ei_unhandled_field_type); + break; + } + } + if (hf_idx == hf_sj_message) { + col_clear(pinfo->cinfo, COL_INFO); + col_add_str(pinfo->cinfo, COL_INFO, (char *) tvb_get_string_enc(pinfo->pool, tvb, eq_off, val_len, ENC_UTF_8)); + } + found = TRUE; + } + } + + if (!found && eq_off > offset + 1) { + proto_item *unk_ti = proto_tree_add_none_format(sje_tree, hf_sj_unknown_field, tvb, offset, line_len, + "Unknown text field: %s", tvb_get_string_enc(pinfo->pool, tvb, offset, eq_off - offset - 1, ENC_UTF_8)); + proto_tree *unk_tree = proto_item_add_subtree(unk_ti, ett_systemd_unknown_field); + proto_tree_add_item(unk_tree, hf_sj_unknown_field_name, tvb, offset, eq_off - offset - 1, ENC_UTF_8); + proto_tree_add_item(unk_tree, hf_sj_unknown_field_value, tvb, eq_off, val_len, ENC_UTF_8); + offset = next_offset; + continue; + } + + // Try again, looking for binary fields. + if (!found) { + for (int i = 0; jf_to_hf[i].name; i++) { + int noeql_len = (int) strlen(jf_to_hf[i].name) - 1; + if (tvb_memeql(tvb, offset, (const guint8 *) jf_to_hf[i].name, (size_t) noeql_len) == 0 && tvb_memeql(tvb, offset+noeql_len, (const guint8 *) "\n", 1) == 0) { + int hf_idx = jf_to_hf[i].hfid; + guint64 data_len = tvb_get_letoh64(tvb, offset + noeql_len + 1); + int data_off = offset + noeql_len + 1 + 8; // \n + data len + next_offset = data_off + (int) data_len + 1; + if (proto_registrar_get_ftype(hf_idx) == FT_STRING) { + proto_item *bin_ti = proto_tree_add_item(sje_tree, hf_idx, tvb, data_off, (int) data_len, ENC_NA); + proto_tree *bin_tree = proto_item_add_subtree(bin_ti, ett_systemd_binary_data); + proto_tree_add_item(bin_tree, hf_sj_binary_data_len, tvb, offset + noeql_len + 1, 8, ENC_LITTLE_ENDIAN); + if (hf_idx == hf_sj_message) { + col_clear(pinfo->cinfo, COL_INFO); + col_add_str(pinfo->cinfo, COL_INFO, tvb_format_text(pinfo->pool, tvb, data_off, (int) data_len)); + } + } else { + proto_item *unk_ti = proto_tree_add_none_format(sje_tree, hf_sj_unknown_field, tvb, offset, line_len, + "Unknown data field: %s", tvb_format_text(pinfo->pool, tvb, offset, eq_off - offset - 1)); + proto_tree *unk_tree = proto_item_add_subtree(unk_ti, ett_systemd_unknown_field); + proto_item *expert_ti = proto_tree_add_item(unk_tree, hf_sj_unknown_field_name, tvb, offset, offset + noeql_len, ENC_UTF_8); + proto_tree_add_item(unk_tree, hf_sj_unknown_field_data, tvb, data_off, (int) data_len, ENC_UTF_8); + expert_add_info(pinfo, expert_ti, &ei_nonbinary_field); + } + } + } + } + offset = next_offset; + } + + return offset; +} + +/* + * Register the protocol with Wireshark. + */ +void +proto_register_systemd_journal(void) +{ + expert_module_t *expert_systemd_journal; + + static hf_register_info hf[] = { + { &hf_sj_message, + { "Message", "systemd_journal.message", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_message_id, + { "Message ID", "systemd_journal.message_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_priority, + { "Priority", "systemd_journal.priority", + FT_UINT8, BASE_DEC, VALS(syslog_level_vals), 0x0, NULL, HFILL } + }, + { &hf_sj_code_file, + { "Code file", "systemd_journal.code_file", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_code_line, + { "Code line", "systemd_journal.code_line", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_code_func, + { "Code func", "systemd_journal.code_func", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_errno, + { "Errno", "systemd_journal.errno", + FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_syslog_facility, + { "Syslog facility", "systemd_journal.syslog_facility", + FT_UINT8, BASE_NONE, VALS(syslog_facility_vals), 0x0, NULL, HFILL } + }, + { &hf_sj_syslog_identifier, + { "Syslog identifier", "systemd_journal.syslog_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_syslog_pid, + { "Syslog PID", "systemd_journal.syslog_pid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_pid, + { "PID", "systemd_journal.pid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_uid, + { "UID", "systemd_journal.uid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_gid, + { "GID", "systemd_journal.gid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_comm, + { "Command name", "systemd_journal.comm", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_exe, + { "Executable path", "systemd_journal.exe", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_cmdline, + { "Command line", "systemd_journal.cmdline", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_cap_effective, + { "Effective capability", "systemd_journal.cap_effective", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_session, + { "Audit session", "systemd_journal.audit_session", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_loginuid, + { "Audit login UID", "systemd_journal.audit_loginuid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_systemd_cgroup, + { "Systemd cgroup", "systemd_journal.systemd_cgroup", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_slice, + { "Systemd slice", "systemd_journal.systemd_slice", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_unit, + { "Systemd unit", "systemd_journal.systemd_unit", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_user_unit, + { "Systemd user unit", "systemd_journal.systemd_user_unit", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_session, + { "Systemd session", "systemd_journal.systemd_session", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_owner_uid, + { "Systemd owner UID", "systemd_journal.systemd_owner_uid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_selinux_context, + { "SELinux context", "systemd_journal.selinux_context", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_source_realtime_timestamp, + { "Source realtime timestamp", "systemd_journal.source_realtime_timestamp", + FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_boot_id, + { "Boot ID", "systemd_journal.boot_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_machine_id, + { "Machine ID", "systemd_journal.machine_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_invocation_id, + { "Systemd invocation ID", "systemd_journal.systemd_invocation_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_hostname, + { "Hostname", "systemd_journal.hostname", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_transport, + { "Transport", "systemd_journal.transport", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_stream_id, + { "Stream ID", "systemd_journal.stream_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_line_break, + { "Line break", "systemd_journal.line_break", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_kernel_device, + { "Kernel device", "systemd_journal.kernel_device", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_kernel_subsystem, + { "Kernel subsystem", "systemd_journal.kernel_subsystem", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_udev_sysname, + { "Device tree name", "systemd_journal.udev_sysname", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_udev_devnode, + { "Device tree node", "systemd_journal.udev_devnode", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_udev_devlink, + { "Device tree symlink", "systemd_journal.udev_devlink", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_coredump_unit, + { "Coredump unit", "systemd_journal.coredump_unit", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_coredump_user_unit, + { "Coredump user unit", "systemd_journal.coredump_user_unit", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_pid, + { "Object PID", "systemd_journal.object_pid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_uid, + { "Object UID", "systemd_journal.object_uid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_gid, + { "Object GID", "systemd_journal.object_gid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_comm, + { "Object command name", "systemd_journal.object_comm", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_exe, + { "Object executable path", "systemd_journal.object_exe", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_cmdline, + { "Object command line", "systemd_journal.object_cmdline", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_audit_session, + { "Object audit session", "systemd_journal.object_audit_session", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_audit_loginuid, + { "Object audit login UID", "systemd_journal.object_audit_loginuid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_cap_effective, + { "Object effective capability", "systemd_journal.object_cap_effective", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_selinux_context, + { "Object SELinux context", "systemd_journal.object_selinux_context", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_cgroup, + { "Object systemd cgroup", "systemd_journal.object_systemd_cgroup", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_session, + { "Object systemd session", "systemd_journal.object_systemd_session", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_owner_uid, + { "Object systemd owner UID", "systemd_journal.object_systemd_owner_uid", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_unit, + { "Object systemd unit", "systemd_journal.object_systemd_unit", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_user_unit, + { "Object systemd user unit", "systemd_journal.object_systemd_user_unit", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_slice, + { "Object systemd slice", "systemd_journal.object_systemd_slice", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_user_slice, + { "Object systemd user slice", "systemd_journal.object_systemd_user_slice", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_object_systemd_invocation_id, + { "Object systemd invocation ID", "systemd_journal.object_systemd_invocation_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_cursor, + { "Cursor", "systemd_journal.cursor", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_realtime_timestamp, + { "Realtime Timestamp", "systemd_journal.realtime_timestamp", + FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_monotonic_timestamp, + { "Monotonic Timestamp", "systemd_journal.monotonic_timestamp", + FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_journal_name, + { "Journal name", "systemd_journal.journal_name", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_journal_path, + { "Journal path", "systemd_journal.journal_path", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_current_use, + { "Current use", "systemd_journal.current_use", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_current_use_pretty, + { "Human readable current use", "systemd_journal.current_use_pretty", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_max_use, + { "Max use", "systemd_journal.max_use", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_max_use_pretty, + { "Human readable max use", "systemd_journal.max_use_pretty", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_disk_keep_free, + { "Disk keep free", "systemd_journal.disk_keep_free", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_disk_keep_free_pretty, + { "Human readable disk keep free", "systemd_journal.disk_keep_free_pretty", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_disk_available, + { "Disk available", "systemd_journal.disk_available", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_disk_available_pretty, + { "Human readable disk available", "systemd_journal.disk_available_pretty", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_limit, + { "Limit", "systemd_journal.limit", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_limit_pretty, + { "Human readable limit", "systemd_journal.limit_pretty", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_available, + { "Available", "systemd_journal.available", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_available_pretty, + { "Human readable available", "systemd_journal.available_pretty", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_result, + { "Result", "systemd_journal.result", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_source_monotonic_timestamp, + { "Source monotonic timestamp", "systemd_journal.source_monotonic_timestamp", + FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_type, + { "Audit type", "systemd_journal.audit_type", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_id, + { "Audit ID", "systemd_journal.audit_id", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_field_apparmor, + { "Audit field AppArmor", "systemd_journal.audit_field_apparmor", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_field_operation, + { "Audit field operation", "systemd_journal.audit_field_operation", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_field_profile, + { "Audit field profile", "systemd_journal.audit_field_profile", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_audit_field_name, + { "Audit field name", "systemd_journal.audit_field_name", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_seat_id, + { "Seat ID", "systemd_journal.seat_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_kernel_usec, + { "Kernel microseconds", "systemd_journal.kernel_usec", + FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_userspace_usec, + { "Userspace microseconds", "systemd_journal.userspace_usec", + FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_session_id, + { "Session ID", "systemd_journal.session_id", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_user_id, + { "User ID", "systemd_journal.user_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_leader, + { "Leader", "systemd_journal.leader", + FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_job_type, + { "Job type", "systemd_journal.job_type", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_job_result, + { "Job result", "systemd_journal.job_result", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_user_invocation_id, + { "User invocation ID", "systemd_journal.user_invocation_id", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_systemd_user_slice, + { "Systemd user slice", "systemd_journal.systemd_user_slice", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + + { &hf_sj_binary_data_len, + { "Binary data length", "systemd_journal.binary_data_len", + FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_unknown_field, + { "Unknown field", "systemd_journal.field", + FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_unknown_field_name, + { "Field name", "systemd_journal.field.name", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_unknown_field_value, + { "Field value", "systemd_journal.field.value", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_unknown_field_data, + { "Field data", "systemd_journal.field.data", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + { &hf_sj_unhandled_field_type, + { "Field data", "systemd_journal.unhandled_field_type", + FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } + } + }; + + /* Setup protocol subtree array */ + static gint *ett[] = { + &ett_systemd_journal_entry, + &ett_systemd_binary_data, + &ett_systemd_unknown_field + }; + + /* Setup protocol expert items */ + static ei_register_info ei[] = { + { &ei_unhandled_field_type, + { "systemd_journal.unhandled_field_type.undecoded", PI_UNDECODED, PI_ERROR, + "Unhandled field type", EXPFILL } + }, + { &ei_nonbinary_field, + { "systemd_journal.nonbinary_field", PI_UNDECODED, PI_WARN, + "Field shouldn't be binary", EXPFILL } + }, + { &ei_undecoded_field, + { "systemd_journal.undecoded_field", PI_UNDECODED, PI_WARN, + "Unable to decode field", EXPFILL } + } + }; + + /* Register the protocol name and description */ + proto_systemd_journal = proto_register_protocol(PNAME, PSNAME, PFNAME); + + /* Required function calls to register the header fields and subtrees */ + proto_register_field_array(proto_systemd_journal, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + /* Required function calls to register expert items */ + expert_systemd_journal = expert_register_protocol(proto_systemd_journal); + expert_register_field_array(expert_systemd_journal, ei, array_length(ei)); + + sje_handle = register_dissector("systemd_journal", dissect_systemd_journal_line_entry, + proto_systemd_journal); + + init_jf_to_hf_map(); +} + +#define BLOCK_TYPE_SYSTEMD_JOURNAL_EXPORT 0x0000009 +void +proto_reg_handoff_systemd_journal(void) +{ + int file_type_subtype_systemd_journal; + + file_type_subtype_systemd_journal = wtap_name_to_file_type_subtype("systemd_journal"); + if (file_type_subtype_systemd_journal != -1) + dissector_add_uint("wtap_fts_rec", file_type_subtype_systemd_journal, sje_handle); + dissector_add_uint("pcapng.block_type", BLOCK_TYPE_SYSTEMD_JOURNAL_EXPORT, sje_handle); + // It's possible to ship journal entries over HTTP/HTTPS using + // systemd-journal-remote. Dissecting them on the wire isn't very + // useful since it's easy to end up with a packet containing a + // single, huge reassembled journal with many entries. + dissector_add_string("media_type", "application/vnd.fdo.journal", sje_handle); +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 4 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * vi: set shiftwidth=4 tabstop=8 expandtab: + * :indentSize=4:tabSize=8:noTabs=true: + */ |