+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "util.h"
-#include "capability.h"
-#include "strv.h"
-#include "macro.h"
-#include "cap-list.h"
-
-#include "bus-message.h"
-#include "bus-internal.h"
-#include "bus-type.h"
-#include "bus-dump.h"
-
-static char *indent(unsigned level, unsigned flags) {
- char *p;
- unsigned n, i = 0;
-
- n = 0;
-
- if (flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY && level > 0)
- level -= 1;
-
- if (flags & BUS_MESSAGE_DUMP_WITH_HEADER)
- n += 2;
-
- p = new(char, n + level*8 + 1);
- if (!p)
- return NULL;
-
- if (flags & BUS_MESSAGE_DUMP_WITH_HEADER) {
- p[i++] = ' ';
- p[i++] = ' ';
- }
-
- memset(p + i, ' ', level*8);
- p[i + level*8] = 0;
-
- return p;
-}
-
-int bus_message_dump(sd_bus_message *m, FILE *f, unsigned flags) {
- unsigned level = 1;
- int r;
-
- assert(m);
-
- if (!f)
- f = stdout;
-
- if (flags & BUS_MESSAGE_DUMP_WITH_HEADER) {
- fprintf(f,
- "%s%s%s Type=%s%s%s Endian=%c Flags=%u Version=%u Priority=%"PRIi64,
- m->header->type == SD_BUS_MESSAGE_METHOD_ERROR ? ansi_highlight_red() :
- m->header->type == SD_BUS_MESSAGE_METHOD_RETURN ? ansi_highlight_green() :
- m->header->type != SD_BUS_MESSAGE_SIGNAL ? ansi_highlight() : "", draw_special_char(DRAW_TRIANGULAR_BULLET), ansi_highlight_off(),
- ansi_highlight(), bus_message_type_to_string(m->header->type), ansi_highlight_off(),
- m->header->endian,
- m->header->flags,
- m->header->version,
- m->priority);
-
- /* Display synthetic message serial number in a more readable
- * format than (uint32_t) -1 */
- if (BUS_MESSAGE_COOKIE(m) == 0xFFFFFFFFULL)
- fprintf(f, " Cookie=-1");
- else
- fprintf(f, " Cookie=%" PRIu64, BUS_MESSAGE_COOKIE(m));
-
- if (m->reply_cookie != 0)
- fprintf(f, " ReplyCookie=%" PRIu64, m->reply_cookie);
-
- fputs("\n", f);
-
- if (m->sender)
- fprintf(f, " Sender=%s%s%s", ansi_highlight(), m->sender, ansi_highlight_off());
- if (m->destination)
- fprintf(f, " Destination=%s%s%s", ansi_highlight(), m->destination, ansi_highlight_off());
- if (m->path)
- fprintf(f, " Path=%s%s%s", ansi_highlight(), m->path, ansi_highlight_off());
- if (m->interface)
- fprintf(f, " Interface=%s%s%s", ansi_highlight(), m->interface, ansi_highlight_off());
- if (m->member)
- fprintf(f, " Member=%s%s%s", ansi_highlight(), m->member, ansi_highlight_off());
-
- if (m->sender || m->destination || m->path || m->interface || m->member)
- fputs("\n", f);
-
- if (sd_bus_error_is_set(&m->error))
- fprintf(f,
- " ErrorName=%s%s%s"
- " ErrorMessage=%s\"%s\"%s\n",
- ansi_highlight_red(), strna(m->error.name), ansi_highlight_off(),
- ansi_highlight_red(), strna(m->error.message), ansi_highlight_off());
-
- if (m->monotonic != 0)
- fprintf(f, " Monotonic="USEC_FMT, m->monotonic);
- if (m->realtime != 0)
- fprintf(f, " Realtime="USEC_FMT, m->realtime);
- if (m->seqnum != 0)
- fprintf(f, " SequenceNumber=%"PRIu64, m->seqnum);
-
- if (m->monotonic != 0 || m->realtime != 0 || m->seqnum != 0)
- fputs("\n", f);
-
- bus_creds_dump(&m->creds, f, true);
- }
-
- r = sd_bus_message_rewind(m, !(flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY));
- if (r < 0)
- return log_error_errno(r, "Failed to rewind: %m");
-
- if (!(flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY)) {
- _cleanup_free_ char *prefix = NULL;
-
- prefix = indent(0, flags);
- if (!prefix)
- return log_oom();
-
- fprintf(f, "%sMESSAGE \"%s\" {\n", prefix, strempty(m->root_container.signature));
- }
-
- for (;;) {
- _cleanup_free_ char *prefix = NULL;
- const char *contents = NULL;
- char type;
- union {
- uint8_t u8;
- uint16_t u16;
- int16_t s16;
- uint32_t u32;
- int32_t s32;
- uint64_t u64;
- int64_t s64;
- double d64;
- const char *string;
- int i;
- } basic;
-
- r = sd_bus_message_peek_type(m, &type, &contents);
- if (r < 0)
- return log_error_errno(r, "Failed to peek type: %m");
-
- if (r == 0) {
- if (level <= 1)
- break;
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return log_error_errno(r, "Failed to exit container: %m");
-
- level--;
-
- prefix = indent(level, flags);
- if (!prefix)
- return log_oom();
-
- fprintf(f, "%s};\n", prefix);
- continue;
- }
-
- prefix = indent(level, flags);
- if (!prefix)
- return log_oom();
-
- if (bus_type_is_container(type) > 0) {
- r = sd_bus_message_enter_container(m, type, contents);
- if (r < 0)
- return log_error_errno(r, "Failed to enter container: %m");
-
- if (type == SD_BUS_TYPE_ARRAY)
- fprintf(f, "%sARRAY \"%s\" {\n", prefix, contents);
- else if (type == SD_BUS_TYPE_VARIANT)
- fprintf(f, "%sVARIANT \"%s\" {\n", prefix, contents);
- else if (type == SD_BUS_TYPE_STRUCT)
- fprintf(f, "%sSTRUCT \"%s\" {\n", prefix, contents);
- else if (type == SD_BUS_TYPE_DICT_ENTRY)
- fprintf(f, "%sDICT_ENTRY \"%s\" {\n", prefix, contents);
-
- level ++;
-
- continue;
- }
-
- r = sd_bus_message_read_basic(m, type, &basic);
- if (r < 0)
- return log_error_errno(r, "Failed to get basic: %m");
-
- assert(r > 0);
-
- switch (type) {
-
- case SD_BUS_TYPE_BYTE:
- fprintf(f, "%sBYTE %s%u%s;\n", prefix, ansi_highlight(), basic.u8, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_BOOLEAN:
- fprintf(f, "%sBOOLEAN %s%s%s;\n", prefix, ansi_highlight(), true_false(basic.i), ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_INT16:
- fprintf(f, "%sINT16 %s%i%s;\n", prefix, ansi_highlight(), basic.s16, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_UINT16:
- fprintf(f, "%sUINT16 %s%u%s;\n", prefix, ansi_highlight(), basic.u16, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_INT32:
- fprintf(f, "%sINT32 %s%i%s;\n", prefix, ansi_highlight(), basic.s32, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_UINT32:
- fprintf(f, "%sUINT32 %s%u%s;\n", prefix, ansi_highlight(), basic.u32, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_INT64:
- fprintf(f, "%sINT64 %s%"PRIi64"%s;\n", prefix, ansi_highlight(), basic.s64, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_UINT64:
- fprintf(f, "%sUINT64 %s%"PRIu64"%s;\n", prefix, ansi_highlight(), basic.u64, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_DOUBLE:
- fprintf(f, "%sDOUBLE %s%g%s;\n", prefix, ansi_highlight(), basic.d64, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_STRING:
- fprintf(f, "%sSTRING \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_OBJECT_PATH:
- fprintf(f, "%sOBJECT_PATH \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_SIGNATURE:
- fprintf(f, "%sSIGNATURE \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_highlight_off());
- break;
-
- case SD_BUS_TYPE_UNIX_FD:
- fprintf(f, "%sUNIX_FD %s%i%s;\n", prefix, ansi_highlight(), basic.i, ansi_highlight_off());
- break;
-
- default:
- assert_not_reached("Unknown basic type.");
- }
- }
-
- if (!(flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY)) {
- _cleanup_free_ char *prefix = NULL;
-
- prefix = indent(0, flags);
- if (!prefix)
- return log_oom();
-
- fprintf(f, "%s};\n\n", prefix);
- }
-
- return 0;
-}
-
-static void dump_capabilities(
- sd_bus_creds *c,
- FILE *f,
- const char *name,
- bool terse,
- int (*has)(sd_bus_creds *c, int capability)) {
-
- unsigned long i, last_cap;
- unsigned n = 0;
- int r;
-
- assert(c);
- assert(f);
- assert(name);
- assert(has);
-
- i = 0;
- r = has(c, i);
- if (r < 0)
- return;
-
- fprintf(f, "%s%s=%s", terse ? " " : "", name, terse ? "" : ansi_highlight());
- last_cap = cap_last_cap();
-
- for (;;) {
- if (r > 0) {
-
- if (n > 0)
- fputc(' ', f);
- if (n % 4 == 3)
- fprintf(f, terse ? "\n " : "\n ");
-
- fprintf(f, "%s", strna(capability_to_name(i)));
- n++;
- }
-
- i++;
-
- if (i > last_cap)
- break;
-
- r = has(c, i);
- }
-
- fputs("\n", f);
-
- if (!terse)
- fputs(ansi_highlight_off(), f);
-}
-
-int bus_creds_dump(sd_bus_creds *c, FILE *f, bool terse) {
- bool audit_sessionid_is_set = false, audit_loginuid_is_set = false;
- const char *u = NULL, *uu = NULL, *s = NULL, *sl = NULL;
- uid_t owner, audit_loginuid;
- uint32_t audit_sessionid;
- char **cmdline = NULL, **well_known = NULL;
- const char *prefix, *color, *suffix;
- int r;
-
- assert(c);
-
- if (!f)
- f = stdout;
-
- if (terse) {
- prefix = " ";
- suffix = "";
- color = "";
- } else {
- const char *off;
-
- prefix = "";
- color = ansi_highlight();
-
- off = ansi_highlight_off();
- suffix = strjoina(off, "\n");
- }
-
- if (c->mask & SD_BUS_CREDS_PID)
- fprintf(f, "%sPID=%s"PID_FMT"%s", prefix, color, c->pid, suffix);
- if (c->mask & SD_BUS_CREDS_TID)
- fprintf(f, "%sTID=%s"PID_FMT"%s", prefix, color, c->tid, suffix);
-
- if (terse && ((c->mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID))))
- fputs("\n", f);
-
- if (c->mask & SD_BUS_CREDS_UID)
- fprintf(f, "%sUID=%s"UID_FMT"%s", prefix, color, c->uid, suffix);
- if (c->mask & SD_BUS_CREDS_EUID)
- fprintf(f, "%sEUID=%s"UID_FMT"%s", prefix, color, c->euid, suffix);
- if (c->mask & SD_BUS_CREDS_SUID)
- fprintf(f, "%sSUID=%s"UID_FMT"%s", prefix, color, c->suid, suffix);
- if (c->mask & SD_BUS_CREDS_FSUID)
- fprintf(f, "%sFSUID=%s"UID_FMT"%s", prefix, color, c->fsuid, suffix);
- r = sd_bus_creds_get_owner_uid(c, &owner);
- if (r >= 0)
- fprintf(f, "%sOwnerUID=%s"UID_FMT"%s", prefix, color, owner, suffix);
- if (c->mask & SD_BUS_CREDS_GID)
- fprintf(f, "%sGID=%s"GID_FMT"%s", prefix, color, c->gid, suffix);
- if (c->mask & SD_BUS_CREDS_EGID)
- fprintf(f, "%sEGID=%s"GID_FMT"%s", prefix, color, c->egid, suffix);
- if (c->mask & SD_BUS_CREDS_SGID)
- fprintf(f, "%sSGID=%s"GID_FMT"%s", prefix, color, c->sgid, suffix);
- if (c->mask & SD_BUS_CREDS_FSGID)
- fprintf(f, "%sFSGID=%s"GID_FMT"%s", prefix, color, c->fsgid, suffix);
-
- if (c->mask & SD_BUS_CREDS_SUPPLEMENTARY_GIDS) {
- unsigned i;
-
- fprintf(f, "%sSupplementaryGIDs=%s", prefix, color);
- for (i = 0; i < c->n_supplementary_gids; i++)
- fprintf(f, "%s" GID_FMT, i > 0 ? " " : "", c->supplementary_gids[i]);
- fprintf(f, "%s", suffix);
- }
-
- if (terse && ((c->mask & (SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID|
- SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID|
- SD_BUS_CREDS_SUPPLEMENTARY_GIDS)) || r >= 0))
- fputs("\n", f);
-
- if (c->mask & SD_BUS_CREDS_COMM)
- fprintf(f, "%sComm=%s%s%s", prefix, color, c->comm, suffix);
- if (c->mask & SD_BUS_CREDS_TID_COMM)
- fprintf(f, "%sTIDComm=%s%s%s", prefix, color, c->tid_comm, suffix);
- if (c->mask & SD_BUS_CREDS_EXE)
- fprintf(f, "%sExe=%s%s%s", prefix, color, c->exe, suffix);
-
- if (terse && (c->mask & (SD_BUS_CREDS_EXE|SD_BUS_CREDS_COMM|SD_BUS_CREDS_TID_COMM)))
- fputs("\n", f);
-
- if (sd_bus_creds_get_cmdline(c, &cmdline) >= 0) {
- char **i;
-
- fprintf(f, "%sCommandLine=%s", prefix, color);
- STRV_FOREACH(i, cmdline) {
- if (i != cmdline)
- fputc(' ', f);
-
- fputs(*i, f);
- }
-
- fprintf(f, "%s", suffix);
- }
-
- if (c->mask & SD_BUS_CREDS_SELINUX_CONTEXT)
- fprintf(f, "%sLabel=%s%s%s", prefix, color, c->label, suffix);
- if (c->mask & SD_BUS_CREDS_DESCRIPTION)
- fprintf(f, "%sDescription=%s%s%s", prefix, color, c->description, suffix);
-
- if (terse && (c->mask & (SD_BUS_CREDS_SELINUX_CONTEXT|SD_BUS_CREDS_DESCRIPTION)))
- fputs("\n", f);
-
- if (c->mask & SD_BUS_CREDS_CGROUP)
- fprintf(f, "%sCGroup=%s%s%s", prefix, color, c->cgroup, suffix);
- (void) sd_bus_creds_get_unit(c, &u);
- if (u)
- fprintf(f, "%sUnit=%s%s%s", prefix, color, u, suffix);
- (void) sd_bus_creds_get_user_unit(c, &uu);
- if (uu)
- fprintf(f, "%sUserUnit=%s%s%s", prefix, color, uu, suffix);
- (void) sd_bus_creds_get_slice(c, &sl);
- if (sl)
- fprintf(f, "%sSlice=%s%s%s", prefix, color, sl, suffix);
- (void) sd_bus_creds_get_session(c, &s);
- if (s)
- fprintf(f, "%sSession=%s%s%s", prefix, color, s, suffix);
-
- if (terse && ((c->mask & SD_BUS_CREDS_CGROUP) || u || uu || sl || s))
- fputs("\n", f);
-
- if (sd_bus_creds_get_audit_login_uid(c, &audit_loginuid) >= 0) {
- audit_loginuid_is_set = true;
- fprintf(f, "%sAuditLoginUID=%s"UID_FMT"%s", prefix, color, audit_loginuid, suffix);
- }
- if (sd_bus_creds_get_audit_session_id(c, &audit_sessionid) >= 0) {
- audit_sessionid_is_set = true;
- fprintf(f, "%sAuditSessionID=%s%"PRIu32"%s", prefix, color, audit_sessionid, suffix);
- }
-
- if (terse && (audit_loginuid_is_set || audit_sessionid_is_set))
- fputs("\n", f);
-
- if (c->mask & SD_BUS_CREDS_UNIQUE_NAME)
- fprintf(f, "%sUniqueName=%s%s%s", prefix, color, c->unique_name, suffix);
-
- if (sd_bus_creds_get_well_known_names(c, &well_known) >= 0) {
- char **i;
-
- fprintf(f, "%sWellKnownNames=%s", prefix, color);
- STRV_FOREACH(i, well_known) {
- if (i != well_known)
- fputc(' ', f);
-
- fputs(*i, f);
- }
-
- fprintf(f, "%s", suffix);
- }
-
- if (terse && (c->mask & SD_BUS_CREDS_UNIQUE_NAME || well_known))
- fputc('\n', f);
-
- dump_capabilities(c, f, "EffectiveCapabilities", terse, sd_bus_creds_has_effective_cap);
- dump_capabilities(c, f, "PermittedCapabilities", terse, sd_bus_creds_has_permitted_cap);
- dump_capabilities(c, f, "InheritableCapabilities", terse, sd_bus_creds_has_inheritable_cap);
- dump_capabilities(c, f, "BoundingCapabilities", terse, sd_bus_creds_has_bounding_cap);
-
- return 0;
-}
-
-/*
- * For details about the file format, see:
- *
- * http://wiki.wireshark.org/Development/LibpcapFileFormat
- */
-
-typedef struct _packed_ pcap_hdr_s {
- uint32_t magic_number; /* magic number */
- uint16_t version_major; /* major version number */
- uint16_t version_minor; /* minor version number */
- int32_t thiszone; /* GMT to local correction */
- uint32_t sigfigs; /* accuracy of timestamps */
- uint32_t snaplen; /* max length of captured packets, in octets */
- uint32_t network; /* data link type */
-} pcap_hdr_t ;
-
-typedef struct _packed_ pcaprec_hdr_s {
- uint32_t ts_sec; /* timestamp seconds */
- uint32_t ts_usec; /* timestamp microseconds */
- uint32_t incl_len; /* number of octets of packet saved in file */
- uint32_t orig_len; /* actual length of packet */
-} pcaprec_hdr_t;
-
-int bus_pcap_header(size_t snaplen, FILE *f) {
-
- pcap_hdr_t hdr = {
- .magic_number = 0xa1b2c3d4U,
- .version_major = 2,
- .version_minor = 4,
- .thiszone = 0, /* UTC */
- .sigfigs = 0,
- .network = 231, /* D-Bus */
- };
-
- if (!f)
- f = stdout;
-
- assert(snaplen > 0);
- assert((size_t) (uint32_t) snaplen == snaplen);
-
- hdr.snaplen = (uint32_t) snaplen;
-
- fwrite(&hdr, 1, sizeof(hdr), f);
- fflush(f);
-
- return 0;
-}
-
-int bus_message_pcap_frame(sd_bus_message *m, size_t snaplen, FILE *f) {
- struct bus_body_part *part;
- pcaprec_hdr_t hdr = {};
- struct timeval tv;
- unsigned i;
- size_t w;
-
- if (!f)
- f = stdout;
-
- assert(m);
- assert(snaplen > 0);
- assert((size_t) (uint32_t) snaplen == snaplen);
-
- if (m->realtime != 0)
- timeval_store(&tv, m->realtime);
- else
- assert_se(gettimeofday(&tv, NULL) >= 0);
-
- hdr.ts_sec = tv.tv_sec;
- hdr.ts_usec = tv.tv_usec;
- hdr.orig_len = BUS_MESSAGE_SIZE(m);
- hdr.incl_len = MIN(hdr.orig_len, snaplen);
-
- /* write the pcap header */
- fwrite(&hdr, 1, sizeof(hdr), f);
-
- /* write the dbus header */
- w = MIN(BUS_MESSAGE_BODY_BEGIN(m), snaplen);
- fwrite(m->header, 1, w, f);
- snaplen -= w;
-
- /* write the dbus body */
- MESSAGE_FOREACH_PART(part, i, m) {
- if (snaplen <= 0)
- break;
-
- w = MIN(part->size, snaplen);
- fwrite(part->data, 1, w, f);
- snaplen -= w;
- }
-
- fflush(f);
-
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff