[thirdparty/systemd.git] / src / libsystemd / sd-bus / bus-dump.c

/***
  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 "alloc-util.h"
#include "bus-dump.h"
#include "bus-internal.h"
#include "bus-message.h"
#include "bus-type.h"
#include "cap-list.h"
#include "capability-util.h"
#include "fileio.h"
#include "formats-util.h"
#include "locale-util.h"
#include "macro.h"
#include "string-util.h"
#include "strv.h"
#include "terminal-util.h"
#include "util.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() : "", special_glyph(TRIANGULAR_BULLET), ansi_normal(),
                        ansi_highlight(), bus_message_type_to_string(m->header->type), ansi_normal(),
                        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_normal());
                if (m->destination)
                        fprintf(f, "  Destination=%s%s%s", ansi_highlight(), m->destination, ansi_normal());
                if (m->path)
                        fprintf(f, "  Path=%s%s%s", ansi_highlight(), m->path, ansi_normal());
                if (m->interface)
                        fprintf(f, "  Interface=%s%s%s", ansi_highlight(), m->interface, ansi_normal());
                if (m->member)
                        fprintf(f, "  Member=%s%s%s", ansi_highlight(), m->member, ansi_normal());

                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_normal(),
                                ansi_highlight_red(), strna(m->error.message), ansi_normal());

                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_normal());
                        break;

                case SD_BUS_TYPE_BOOLEAN:
                        fprintf(f, "%sBOOLEAN %s%s%s;\n", prefix, ansi_highlight(), true_false(basic.i), ansi_normal());
                        break;

                case SD_BUS_TYPE_INT16:
                        fprintf(f, "%sINT16 %s%i%s;\n", prefix, ansi_highlight(), basic.s16, ansi_normal());
                        break;

                case SD_BUS_TYPE_UINT16:
                        fprintf(f, "%sUINT16 %s%u%s;\n", prefix, ansi_highlight(), basic.u16, ansi_normal());
                        break;

                case SD_BUS_TYPE_INT32:
                        fprintf(f, "%sINT32 %s%i%s;\n", prefix, ansi_highlight(), basic.s32, ansi_normal());
                        break;

                case SD_BUS_TYPE_UINT32:
                        fprintf(f, "%sUINT32 %s%u%s;\n", prefix, ansi_highlight(), basic.u32, ansi_normal());
                        break;

                case SD_BUS_TYPE_INT64:
                        fprintf(f, "%sINT64 %s%"PRIi64"%s;\n", prefix, ansi_highlight(), basic.s64, ansi_normal());
                        break;

                case SD_BUS_TYPE_UINT64:
                        fprintf(f, "%sUINT64 %s%"PRIu64"%s;\n", prefix, ansi_highlight(), basic.u64, ansi_normal());
                        break;

                case SD_BUS_TYPE_DOUBLE:
                        fprintf(f, "%sDOUBLE %s%g%s;\n", prefix, ansi_highlight(), basic.d64, ansi_normal());
                        break;

                case SD_BUS_TYPE_STRING:
                        fprintf(f, "%sSTRING \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_normal());
                        break;

                case SD_BUS_TYPE_OBJECT_PATH:
                        fprintf(f, "%sOBJECT_PATH \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_normal());
                        break;

                case SD_BUS_TYPE_SIGNATURE:
                        fprintf(f, "%sSIGNATURE \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_normal());
                        break;

                case SD_BUS_TYPE_UNIX_FD:
                        fprintf(f, "%sUNIX_FD %s%i%s;\n", prefix, ansi_highlight(), basic.i, ansi_normal());
                        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_normal(), f);
}

int bus_creds_dump(sd_bus_creds *c, FILE *f, bool terse) {
        uid_t owner, audit_loginuid;
        uint32_t audit_sessionid;
        char **cmdline = NULL, **well_known = NULL;
        const char *prefix, *color, *suffix, *s;
        int r, q, v, w, z;

        assert(c);

        if (!f)
                f = stdout;

        if (terse) {
                prefix = "  ";
                suffix = "";
                color = "";
        } else {
                const char *off;

                prefix = "";
                color = ansi_highlight();

                off = ansi_normal();
                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 (c->mask & SD_BUS_CREDS_PPID) {
                if (c->ppid == 0)
                        fprintf(f, "%sPPID=%sn/a%s", prefix, color, suffix);
                else
                        fprintf(f, "%sPPID=%s"PID_FMT"%s", prefix, color, c->ppid, suffix);
        }
        if (c->mask & SD_BUS_CREDS_TTY)
                fprintf(f, "%sTTY=%s%s%s", prefix, color, strna(c->tty), suffix);

        if (terse && ((c->mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_TID|SD_BUS_CREDS_PPID|SD_BUS_CREDS_TTY))))
                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, strna(c->exe), suffix);

        if (terse && (c->mask & (SD_BUS_CREDS_EXE|SD_BUS_CREDS_COMM|SD_BUS_CREDS_TID_COMM)))
                fputs("\n", f);

        r = sd_bus_creds_get_cmdline(c, &cmdline);
        if (r >= 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);
        } else if (r != -ENODATA)
                fprintf(f, "%sCommandLine=%sn/a%s", prefix, color, 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);
        s = NULL;
        r = sd_bus_creds_get_unit(c, &s);
        if (r != -ENODATA)
                fprintf(f, "%sUnit=%s%s%s", prefix, color, strna(s), suffix);
        s = NULL;
        v = sd_bus_creds_get_slice(c, &s);
        if (v != -ENODATA)
                fprintf(f, "%sSlice=%s%s%s", prefix, color, strna(s), suffix);
        s = NULL;
        q = sd_bus_creds_get_user_unit(c, &s);
        if (q != -ENODATA)
                fprintf(f, "%sUserUnit=%s%s%s", prefix, color, strna(s), suffix);
        s = NULL;
        w = sd_bus_creds_get_user_slice(c, &s);
        if (w != -ENODATA)
                fprintf(f, "%sUserSlice=%s%s%s", prefix, color, strna(s), suffix);
        s = NULL;
        z = sd_bus_creds_get_session(c, &s);
        if (z != -ENODATA)
                fprintf(f, "%sSession=%s%s%s", prefix, color, strna(s), suffix);

        if (terse && ((c->mask & SD_BUS_CREDS_CGROUP) || r != -ENODATA || q != -ENODATA || v != -ENODATA || w != -ENODATA || z != -ENODATA))
                fputs("\n", f);

        r = sd_bus_creds_get_audit_login_uid(c, &audit_loginuid);
        if (r >= 0)
                fprintf(f, "%sAuditLoginUID=%s"UID_FMT"%s", prefix, color, audit_loginuid, suffix);
        else if (r != -ENODATA)
                fprintf(f, "%sAuditLoginUID=%sn/a%s", prefix, color, suffix);
        q = sd_bus_creds_get_audit_session_id(c, &audit_sessionid);
        if (q >= 0)
                fprintf(f, "%sAuditSessionID=%s%"PRIu32"%s", prefix, color, audit_sessionid, suffix);
        else if (q != -ENODATA)
                fprintf(f, "%sAuditSessionID=%sn/a%s", prefix, color, suffix);

        if (terse && (r != -ENODATA || q != -ENODATA))
                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);

        return fflush_and_check(f);
}

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;
        }

        return fflush_and_check(f);
}
Commit	Line	Data
3db0e46b LP	1	/***
	2	This file is part of systemd.
	3
	4	Copyright 2013 Lennart Poettering
	5
	6	systemd is free software; you can redistribute it and/or modify it
	7	under the terms of the GNU Lesser General Public License as published by
	8	the Free Software Foundation; either version 2.1 of the License, or
	9	(at your option) any later version.
	10
	11	systemd is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	Lesser General Public License for more details.
	15
	16	You should have received a copy of the GNU Lesser General Public License
	17	along with systemd; If not, see <http://www.gnu.org/licenses/>.
	18	***/
	19
b5efdb8a	20	#include "alloc-util.h"
0d39fa9c	21	#include "bus-dump.h"
07630cea LP	22	#include "bus-internal.h"
	23	#include "bus-message.h"
	24	#include "bus-type.h"
2822da4f	25	#include "cap-list.h"
430f0182	26	#include "capability-util.h"
0d39fa9c	27	#include "fileio.h"
6482f626	28	#include "formats-util.h"
8752c575	29	#include "locale-util.h"
07630cea LP	30	#include "macro.h"
	31	#include "string-util.h"
	32	#include "strv.h"
288a74cc	33	#include "terminal-util.h"
07630cea	34	#include "util.h"
3db0e46b	35
d55192ad	36	static char *indent(unsigned level, unsigned flags) {
f8cfb5f5	37	char *p;
d55192ad	38	unsigned n, i = 0;
f8cfb5f5	39
d55192ad LP	40	n = 0;
	41
	42	if (flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY && level > 0)
	43	level -= 1;
	44
	45	if (flags & BUS_MESSAGE_DUMP_WITH_HEADER)
	46	n += 2;
	47
	48	p = new(char, n + level*8 + 1);
f8cfb5f5 LP	49	if (!p)
	50	return NULL;
	51
d55192ad LP	52	if (flags & BUS_MESSAGE_DUMP_WITH_HEADER) {
	53	p[i++] = ' ';
	54	p[i++] = ' ';
	55	}
	56
	57	memset(p + i, ' ', level*8);
	58	p[i + level*8] = 0;
f8cfb5f5 LP	59
	60	return p;
	61	}
	62
d55192ad	63	int bus_message_dump(sd_bus_message m, FILE f, unsigned flags) {
3db0e46b LP	64	unsigned level = 1;
3db0e46b LP	65	int r;
3db0e46b LP	66
	67	assert(m);
	68
	69	if (!f)
	70	f = stdout;
	71
d55192ad	72	if (flags & BUS_MESSAGE_DUMP_WITH_HEADER) {
3db0e46b	73	fprintf(f,
1fa2f38f	74	"%s%s%s Type=%s%s%s Endian=%c Flags=%u Version=%u Priority=%"PRIi64,
f8cfb5f5 LP	75	m->header->type == SD_BUS_MESSAGE_METHOD_ERROR ? ansi_highlight_red() :
f8cfb5f5 LP	76	m->header->type == SD_BUS_MESSAGE_METHOD_RETURN ? ansi_highlight_green() :
323b7dc9	77	m->header->type != SD_BUS_MESSAGE_SIGNAL ? ansi_highlight() : "", special_glyph(TRIANGULAR_BULLET), ansi_normal(),
1fc464f6	78	ansi_highlight(), bus_message_type_to_string(m->header->type), ansi_normal(),
f8cfb5f5	79	m->header->endian,
3db0e46b	80	m->header->flags,
ca7b42c8	81	m->header->version,
1fa2f38f	82	m->priority);
a009c158 LS	83
	84	/* Display synthetic message serial number in a more readable
	85	* format than (uint32_t) -1 */
693eb9a2 LP	86	if (BUS_MESSAGE_COOKIE(m) == 0xFFFFFFFFULL)
693eb9a2 LP	87	fprintf(f, " Cookie=-1");
a009c158	88	else
42c4ebcb	89	fprintf(f, " Cookie=%" PRIu64, BUS_MESSAGE_COOKIE(m));
3db0e46b	90
693eb9a2	91	if (m->reply_cookie != 0)
42c4ebcb	92	fprintf(f, " ReplyCookie=%" PRIu64, m->reply_cookie);
3db0e46b LP	93
	94	fputs("\n", f);
	95
	96	if (m->sender)
1fc464f6	97	fprintf(f, " Sender=%s%s%s", ansi_highlight(), m->sender, ansi_normal());
3db0e46b	98	if (m->destination)
1fc464f6	99	fprintf(f, " Destination=%s%s%s", ansi_highlight(), m->destination, ansi_normal());
3db0e46b	100	if (m->path)
1fc464f6	101	fprintf(f, " Path=%s%s%s", ansi_highlight(), m->path, ansi_normal());
3db0e46b	102	if (m->interface)
1fc464f6	103	fprintf(f, " Interface=%s%s%s", ansi_highlight(), m->interface, ansi_normal());
3db0e46b	104	if (m->member)
1fc464f6	105	fprintf(f, " Member=%s%s%s", ansi_highlight(), m->member, ansi_normal());
3db0e46b LP	106
	107	if (m->sender \|\| m->destination \|\| m->path \|\| m->interface \|\| m->member)
	108	fputs("\n", f);
	109
	110	if (sd_bus_error_is_set(&m->error))
	111	fprintf(f,
	112	" ErrorName=%s%s%s"
	113	" ErrorMessage=%s\"%s\"%s\n",
1fc464f6 LP	114	ansi_highlight_red(), strna(m->error.name), ansi_normal(),
1fc464f6 LP	115	ansi_highlight_red(), strna(m->error.message), ansi_normal());
3db0e46b	116
3db0e46b	117	if (m->monotonic != 0)
de0671ee	118	fprintf(f, " Monotonic="USEC_FMT, m->monotonic);
3db0e46b	119	if (m->realtime != 0)
de0671ee	120	fprintf(f, " Realtime="USEC_FMT, m->realtime);
6a0e376c	121	if (m->seqnum != 0)
de0671ee	122	fprintf(f, " SequenceNumber=%"PRIu64, m->seqnum);
3db0e46b	123
6a0e376c	124	if (m->monotonic != 0 \|\| m->realtime != 0 \|\| m->seqnum != 0)
3db0e46b LP	125	fputs("\n", f);
3db0e46b LP	126
d0b2babf	127	bus_creds_dump(&m->creds, f, true);
3db0e46b LP	128	}
3db0e46b LP	129
d55192ad	130	r = sd_bus_message_rewind(m, !(flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY));
23bbb0de MS	131	if (r < 0)
23bbb0de MS	132	return log_error_errno(r, "Failed to rewind: %m");
3db0e46b	133
ee04388a LP	134	if (!(flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY)) {
	135	_cleanup_free_ char *prefix = NULL;
	136
	137	prefix = indent(0, flags);
	138	if (!prefix)
	139	return log_oom();
	140
	141	fprintf(f, "%sMESSAGE \"%s\" {\n", prefix, strempty(m->root_container.signature));
	142	}
3db0e46b	143
f168c273	144	for (;;) {
3db0e46b LP	145	_cleanup_free_ char *prefix = NULL;
	146	const char *contents = NULL;
	147	char type;
	148	union {
	149	uint8_t u8;
	150	uint16_t u16;
	151	int16_t s16;
	152	uint32_t u32;
	153	int32_t s32;
	154	uint64_t u64;
	155	int64_t s64;
	156	double d64;
	157	const char *string;
	158	int i;
	159	} basic;
	160
	161	r = sd_bus_message_peek_type(m, &type, &contents);
23bbb0de MS	162	if (r < 0)
23bbb0de MS	163	return log_error_errno(r, "Failed to peek type: %m");
3db0e46b LP	164
	165	if (r == 0) {
	166	if (level <= 1)
	167	break;
	168
	169	r = sd_bus_message_exit_container(m);
23bbb0de MS	170	if (r < 0)
23bbb0de MS	171	return log_error_errno(r, "Failed to exit container: %m");
3db0e46b LP	172
	173	level--;
	174
d55192ad	175	prefix = indent(level, flags);
3db0e46b LP	176	if (!prefix)
	177	return log_oom();
	178
	179	fprintf(f, "%s};\n", prefix);
	180	continue;
	181	}
	182
d55192ad	183	prefix = indent(level, flags);
3db0e46b LP	184	if (!prefix)
	185	return log_oom();
	186
	187	if (bus_type_is_container(type) > 0) {
	188	r = sd_bus_message_enter_container(m, type, contents);
23bbb0de MS	189	if (r < 0)
23bbb0de MS	190	return log_error_errno(r, "Failed to enter container: %m");
3db0e46b LP	191
	192	if (type == SD_BUS_TYPE_ARRAY)
	193	fprintf(f, "%sARRAY \"%s\" {\n", prefix, contents);
	194	else if (type == SD_BUS_TYPE_VARIANT)
	195	fprintf(f, "%sVARIANT \"%s\" {\n", prefix, contents);
	196	else if (type == SD_BUS_TYPE_STRUCT)
	197	fprintf(f, "%sSTRUCT \"%s\" {\n", prefix, contents);
	198	else if (type == SD_BUS_TYPE_DICT_ENTRY)
	199	fprintf(f, "%sDICT_ENTRY \"%s\" {\n", prefix, contents);
	200
313cefa1	201	level++;
3db0e46b LP	202
	203	continue;
	204	}
	205
	206	r = sd_bus_message_read_basic(m, type, &basic);
23bbb0de MS	207	if (r < 0)
23bbb0de MS	208	return log_error_errno(r, "Failed to get basic: %m");
3db0e46b LP	209
	210	assert(r > 0);
	211
	212	switch (type) {
	213
	214	case SD_BUS_TYPE_BYTE:
1fc464f6	215	fprintf(f, "%sBYTE %s%u%s;\n", prefix, ansi_highlight(), basic.u8, ansi_normal());
3db0e46b LP	216	break;
	217
	218	case SD_BUS_TYPE_BOOLEAN:
1fc464f6	219	fprintf(f, "%sBOOLEAN %s%s%s;\n", prefix, ansi_highlight(), true_false(basic.i), ansi_normal());
3db0e46b LP	220	break;
	221
	222	case SD_BUS_TYPE_INT16:
1fc464f6	223	fprintf(f, "%sINT16 %s%i%s;\n", prefix, ansi_highlight(), basic.s16, ansi_normal());
3db0e46b LP	224	break;
	225
	226	case SD_BUS_TYPE_UINT16:
1fc464f6	227	fprintf(f, "%sUINT16 %s%u%s;\n", prefix, ansi_highlight(), basic.u16, ansi_normal());
3db0e46b LP	228	break;
	229
	230	case SD_BUS_TYPE_INT32:
1fc464f6	231	fprintf(f, "%sINT32 %s%i%s;\n", prefix, ansi_highlight(), basic.s32, ansi_normal());
3db0e46b LP	232	break;
	233
	234	case SD_BUS_TYPE_UINT32:
1fc464f6	235	fprintf(f, "%sUINT32 %s%u%s;\n", prefix, ansi_highlight(), basic.u32, ansi_normal());
3db0e46b LP	236	break;
	237
	238	case SD_BUS_TYPE_INT64:
1fc464f6	239	fprintf(f, "%sINT64 %s%"PRIi64"%s;\n", prefix, ansi_highlight(), basic.s64, ansi_normal());
3db0e46b LP	240	break;
	241
	242	case SD_BUS_TYPE_UINT64:
1fc464f6	243	fprintf(f, "%sUINT64 %s%"PRIu64"%s;\n", prefix, ansi_highlight(), basic.u64, ansi_normal());
3db0e46b LP	244	break;
	245
	246	case SD_BUS_TYPE_DOUBLE:
1fc464f6	247	fprintf(f, "%sDOUBLE %s%g%s;\n", prefix, ansi_highlight(), basic.d64, ansi_normal());
3db0e46b LP	248	break;
	249
	250	case SD_BUS_TYPE_STRING:
1fc464f6	251	fprintf(f, "%sSTRING \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_normal());
3db0e46b LP	252	break;
	253
	254	case SD_BUS_TYPE_OBJECT_PATH:
1fc464f6	255	fprintf(f, "%sOBJECT_PATH \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_normal());
3db0e46b LP	256	break;
	257
	258	case SD_BUS_TYPE_SIGNATURE:
1fc464f6	259	fprintf(f, "%sSIGNATURE \"%s%s%s\";\n", prefix, ansi_highlight(), basic.string, ansi_normal());
3db0e46b LP	260	break;
	261
	262	case SD_BUS_TYPE_UNIX_FD:
1fc464f6	263	fprintf(f, "%sUNIX_FD %s%i%s;\n", prefix, ansi_highlight(), basic.i, ansi_normal());
3db0e46b LP	264	break;
	265
	266	default:
	267	assert_not_reached("Unknown basic type.");
	268	}
	269	}
	270
ee04388a LP	271	if (!(flags & BUS_MESSAGE_DUMP_SUBTREE_ONLY)) {
	272	_cleanup_free_ char *prefix = NULL;
	273
	274	prefix = indent(0, flags);
	275	if (!prefix)
	276	return log_oom();
	277
	278	fprintf(f, "%s};\n\n", prefix);
	279	}
d55192ad	280
3db0e46b LP	281	return 0;
3db0e46b LP	282	}
5b12334d LP	283
	284	static void dump_capabilities(
	285	sd_bus_creds *c,
	286	FILE *f,
	287	const char *name,
d0b2babf	288	bool terse,
5b12334d LP	289	int (has)(sd_bus_creds c, int capability)) {
	290
	291	unsigned long i, last_cap;
	292	unsigned n = 0;
	293	int r;
	294
	295	assert(c);
	296	assert(f);
	297	assert(name);
	298	assert(has);
	299
	300	i = 0;
	301	r = has(c, i);
	302	if (r < 0)
	303	return;
	304
d0b2babf	305	fprintf(f, "%s%s=%s", terse ? " " : "", name, terse ? "" : ansi_highlight());
5b12334d LP	306	last_cap = cap_last_cap();
	307
	308	for (;;) {
	309	if (r > 0) {
5ce70e5b	310
5b12334d LP	311	if (n > 0)
	312	fputc(' ', f);
	313	if (n % 4 == 3)
d0b2babf	314	fprintf(f, terse ? "\n " : "\n ");
5b12334d	315
2822da4f	316	fprintf(f, "%s", strna(capability_to_name(i)));
5b12334d LP	317	n++;
	318	}
	319
	320	i++;
	321
	322	if (i > last_cap)
	323	break;
	324
	325	r = has(c, i);
	326	}
	327
	328	fputs("\n", f);
d0b2babf LP	329
d0b2babf LP	330	if (!terse)
1fc464f6	331	fputs(ansi_normal(), f);
5b12334d LP	332	}
5b12334d LP	333
d0b2babf	334	int bus_creds_dump(sd_bus_creds c, FILE f, bool terse) {
5b12334d LP	335	uid_t owner, audit_loginuid;
5b12334d LP	336	uint32_t audit_sessionid;
49b832c5	337	char cmdline = NULL, well_known = NULL;
cfeaa44a	338	const char prefix, color, suffix, s;
329ac4bc	339	int r, q, v, w, z;
5b12334d LP	340
	341	assert(c);
	342
	343	if (!f)
	344	f = stdout;
	345
d0b2babf LP	346	if (terse) {
	347	prefix = " ";
	348	suffix = "";
	349	color = "";
	350	} else {
	351	const char *off;
	352
	353	prefix = "";
	354	color = ansi_highlight();
	355
1fc464f6	356	off = ansi_normal();
63c372cb	357	suffix = strjoina(off, "\n");
d0b2babf LP	358	}
d0b2babf LP	359
5b12334d	360	if (c->mask & SD_BUS_CREDS_PID)
d0b2babf	361	fprintf(f, "%sPID=%s"PID_FMT"%s", prefix, color, c->pid, suffix);
5b12334d	362	if (c->mask & SD_BUS_CREDS_TID)
d0b2babf	363	fprintf(f, "%sTID=%s"PID_FMT"%s", prefix, color, c->tid, suffix);
cfeaa44a LP	364	if (c->mask & SD_BUS_CREDS_PPID) {
	365	if (c->ppid == 0)
	366	fprintf(f, "%sPPID=%sn/a%s", prefix, color, suffix);
	367	else
	368	fprintf(f, "%sPPID=%s"PID_FMT"%s", prefix, color, c->ppid, suffix);
	369	}
4761e880 LP	370	if (c->mask & SD_BUS_CREDS_TTY)
4761e880 LP	371	fprintf(f, "%sTTY=%s%s%s", prefix, color, strna(c->tty), suffix);
705a415f	372
4761e880	373	if (terse && ((c->mask & (SD_BUS_CREDS_PID\|SD_BUS_CREDS_TID\|SD_BUS_CREDS_PPID\|SD_BUS_CREDS_TTY))))
705a415f LP	374	fputs("\n", f);
705a415f LP	375
5b12334d	376	if (c->mask & SD_BUS_CREDS_UID)
d0b2babf	377	fprintf(f, "%sUID=%s"UID_FMT"%s", prefix, color, c->uid, suffix);
705a415f LP	378	if (c->mask & SD_BUS_CREDS_EUID)
	379	fprintf(f, "%sEUID=%s"UID_FMT"%s", prefix, color, c->euid, suffix);
	380	if (c->mask & SD_BUS_CREDS_SUID)
	381	fprintf(f, "%sSUID=%s"UID_FMT"%s", prefix, color, c->suid, suffix);
	382	if (c->mask & SD_BUS_CREDS_FSUID)
	383	fprintf(f, "%sFSUID=%s"UID_FMT"%s", prefix, color, c->fsuid, suffix);
5b12334d LP	384	r = sd_bus_creds_get_owner_uid(c, &owner);
5b12334d LP	385	if (r >= 0)
d0b2babf	386	fprintf(f, "%sOwnerUID=%s"UID_FMT"%s", prefix, color, owner, suffix);
5b12334d	387	if (c->mask & SD_BUS_CREDS_GID)
d0b2babf	388	fprintf(f, "%sGID=%s"GID_FMT"%s", prefix, color, c->gid, suffix);
705a415f LP	389	if (c->mask & SD_BUS_CREDS_EGID)
	390	fprintf(f, "%sEGID=%s"GID_FMT"%s", prefix, color, c->egid, suffix);
	391	if (c->mask & SD_BUS_CREDS_SGID)
	392	fprintf(f, "%sSGID=%s"GID_FMT"%s", prefix, color, c->sgid, suffix);
	393	if (c->mask & SD_BUS_CREDS_FSGID)
	394	fprintf(f, "%sFSGID=%s"GID_FMT"%s", prefix, color, c->fsgid, suffix);
	395
02581590 LP	396	if (c->mask & SD_BUS_CREDS_SUPPLEMENTARY_GIDS) {
	397	unsigned i;
	398
	399	fprintf(f, "%sSupplementaryGIDs=%s", prefix, color);
	400	for (i = 0; i < c->n_supplementary_gids; i++)
	401	fprintf(f, "%s" GID_FMT, i > 0 ? " " : "", c->supplementary_gids[i]);
	402	fprintf(f, "%s", suffix);
	403	}
	404
705a415f	405	if (terse && ((c->mask & (SD_BUS_CREDS_UID\|SD_BUS_CREDS_EUID\|SD_BUS_CREDS_SUID\|SD_BUS_CREDS_FSUID\|
02581590 LP	406	SD_BUS_CREDS_GID\|SD_BUS_CREDS_EGID\|SD_BUS_CREDS_SGID\|SD_BUS_CREDS_FSGID\|
02581590 LP	407	SD_BUS_CREDS_SUPPLEMENTARY_GIDS)) \|\| r >= 0))
5b12334d LP	408	fputs("\n", f);
5b12334d LP	409
5b12334d	410	if (c->mask & SD_BUS_CREDS_COMM)
d0b2babf	411	fprintf(f, "%sComm=%s%s%s", prefix, color, c->comm, suffix);
5b12334d	412	if (c->mask & SD_BUS_CREDS_TID_COMM)
d0b2babf	413	fprintf(f, "%sTIDComm=%s%s%s", prefix, color, c->tid_comm, suffix);
5cf4f2d1	414	if (c->mask & SD_BUS_CREDS_EXE)
cfeaa44a	415	fprintf(f, "%sExe=%s%s%s", prefix, color, strna(c->exe), suffix);
14008e4e	416
d0b2babf	417	if (terse && (c->mask & (SD_BUS_CREDS_EXE\|SD_BUS_CREDS_COMM\|SD_BUS_CREDS_TID_COMM)))
14008e4e LP	418	fputs("\n", f);
14008e4e LP	419
cfeaa44a LP	420	r = sd_bus_creds_get_cmdline(c, &cmdline);
cfeaa44a LP	421	if (r >= 0) {
5b12334d LP	422	char **i;
5b12334d LP	423
d0b2babf	424	fprintf(f, "%sCommandLine=%s", prefix, color);
5b12334d LP	425	STRV_FOREACH(i, cmdline) {
	426	if (i != cmdline)
	427	fputc(' ', f);
	428
	429	fputs(*i, f);
	430	}
	431
d0b2babf	432	fprintf(f, "%s", suffix);
cfeaa44a LP	433	} else if (r != -ENODATA)
cfeaa44a LP	434	fprintf(f, "%sCommandLine=%sn/a%s", prefix, color, suffix);
5b12334d	435
5cf4f2d1 LP	436	if (c->mask & SD_BUS_CREDS_SELINUX_CONTEXT)
	437	fprintf(f, "%sLabel=%s%s%s", prefix, color, c->label, suffix);
	438	if (c->mask & SD_BUS_CREDS_DESCRIPTION)
	439	fprintf(f, "%sDescription=%s%s%s", prefix, color, c->description, suffix);
	440
	441	if (terse && (c->mask & (SD_BUS_CREDS_SELINUX_CONTEXT\|SD_BUS_CREDS_DESCRIPTION)))
	442	fputs("\n", f);
	443
5b12334d	444	if (c->mask & SD_BUS_CREDS_CGROUP)
d0b2babf	445	fprintf(f, "%sCGroup=%s%s%s", prefix, color, c->cgroup, suffix);
cfeaa44a LP	446	s = NULL;
	447	r = sd_bus_creds_get_unit(c, &s);
	448	if (r != -ENODATA)
	449	fprintf(f, "%sUnit=%s%s%s", prefix, color, strna(s), suffix);
	450	s = NULL;
cfeaa44a LP	451	v = sd_bus_creds_get_slice(c, &s);
	452	if (v != -ENODATA)
	453	fprintf(f, "%sSlice=%s%s%s", prefix, color, strna(s), suffix);
	454	s = NULL;
329ac4bc LP	455	q = sd_bus_creds_get_user_unit(c, &s);
	456	if (q != -ENODATA)
	457	fprintf(f, "%sUserUnit=%s%s%s", prefix, color, strna(s), suffix);
	458	s = NULL;
	459	w = sd_bus_creds_get_user_slice(c, &s);
cfeaa44a	460	if (w != -ENODATA)
329ac4bc LP	461	fprintf(f, "%sUserSlice=%s%s%s", prefix, color, strna(s), suffix);
	462	s = NULL;
	463	z = sd_bus_creds_get_session(c, &s);
	464	if (z != -ENODATA)
cfeaa44a LP	465	fprintf(f, "%sSession=%s%s%s", prefix, color, strna(s), suffix);
cfeaa44a LP	466
329ac4bc	467	if (terse && ((c->mask & SD_BUS_CREDS_CGROUP) \|\| r != -ENODATA \|\| q != -ENODATA \|\| v != -ENODATA \|\| w != -ENODATA \|\| z != -ENODATA))
5b12334d LP	468	fputs("\n", f);
5b12334d LP	469
cfeaa44a LP	470	r = sd_bus_creds_get_audit_login_uid(c, &audit_loginuid);
cfeaa44a LP	471	if (r >= 0)
d0b2babf	472	fprintf(f, "%sAuditLoginUID=%s"UID_FMT"%s", prefix, color, audit_loginuid, suffix);
cfeaa44a LP	473	else if (r != -ENODATA)
	474	fprintf(f, "%sAuditLoginUID=%sn/a%s", prefix, color, suffix);
	475	q = sd_bus_creds_get_audit_session_id(c, &audit_sessionid);
	476	if (q >= 0)
d0b2babf	477	fprintf(f, "%sAuditSessionID=%s%"PRIu32"%s", prefix, color, audit_sessionid, suffix);
cfeaa44a LP	478	else if (q != -ENODATA)
cfeaa44a LP	479	fprintf(f, "%sAuditSessionID=%sn/a%s", prefix, color, suffix);
5b12334d	480
cfeaa44a	481	if (terse && (r != -ENODATA \|\| q != -ENODATA))
5b12334d LP	482	fputs("\n", f);
5b12334d LP	483
49b832c5	484	if (c->mask & SD_BUS_CREDS_UNIQUE_NAME)
d0b2babf	485	fprintf(f, "%sUniqueName=%s%s%s", prefix, color, c->unique_name, suffix);
49b832c5 LP	486
	487	if (sd_bus_creds_get_well_known_names(c, &well_known) >= 0) {
	488	char **i;
	489
d0b2babf	490	fprintf(f, "%sWellKnownNames=%s", prefix, color);
49b832c5 LP	491	STRV_FOREACH(i, well_known) {
	492	if (i != well_known)
	493	fputc(' ', f);
	494
	495	fputs(*i, f);
	496	}
	497
d0b2babf	498	fprintf(f, "%s", suffix);
49b832c5 LP	499	}
49b832c5 LP	500
d0b2babf	501	if (terse && (c->mask & SD_BUS_CREDS_UNIQUE_NAME \|\| well_known))
3310dfd5 LP	502	fputc('\n', f);
3310dfd5 LP	503
d0b2babf LP	504	dump_capabilities(c, f, "EffectiveCapabilities", terse, sd_bus_creds_has_effective_cap);
	505	dump_capabilities(c, f, "PermittedCapabilities", terse, sd_bus_creds_has_permitted_cap);
	506	dump_capabilities(c, f, "InheritableCapabilities", terse, sd_bus_creds_has_inheritable_cap);
	507	dump_capabilities(c, f, "BoundingCapabilities", terse, sd_bus_creds_has_bounding_cap);
5b12334d LP	508
	509	return 0;
	510	}
1f70b087 LP	511
	512	/*
	513	* For details about the file format, see:
	514	*
	515	* http://wiki.wireshark.org/Development/LibpcapFileFormat
	516	*/
	517
	518	typedef struct _packed_ pcap_hdr_s {
	519	uint32_t magic_number; /* magic number */
	520	uint16_t version_major; /* major version number */
	521	uint16_t version_minor; /* minor version number */
	522	int32_t thiszone; /* GMT to local correction */
	523	uint32_t sigfigs; /* accuracy of timestamps */
	524	uint32_t snaplen; /* max length of captured packets, in octets */
	525	uint32_t network; /* data link type */
	526	} pcap_hdr_t ;
	527
	528	typedef struct _packed_ pcaprec_hdr_s {
	529	uint32_t ts_sec; /* timestamp seconds */
	530	uint32_t ts_usec; /* timestamp microseconds */
	531	uint32_t incl_len; /* number of octets of packet saved in file */
	532	uint32_t orig_len; /* actual length of packet */
	533	} pcaprec_hdr_t;
	534
	535	int bus_pcap_header(size_t snaplen, FILE *f) {
	536
	537	pcap_hdr_t hdr = {
	538	.magic_number = 0xa1b2c3d4U,
	539	.version_major = 2,
	540	.version_minor = 4,
	541	.thiszone = 0, /* UTC */
	542	.sigfigs = 0,
	543	.network = 231, /* D-Bus */
	544	};
	545
	546	if (!f)
	547	f = stdout;
	548
	549	assert(snaplen > 0);
	550	assert((size_t) (uint32_t) snaplen == snaplen);
	551
	552	hdr.snaplen = (uint32_t) snaplen;
	553
	554	fwrite(&hdr, 1, sizeof(hdr), f);
1f70b087	555
dacd6cee	556	return fflush_and_check(f);
1f70b087 LP	557	}
	558
	559	int bus_message_pcap_frame(sd_bus_message m, size_t snaplen, FILE f) {
	560	struct bus_body_part *part;
	561	pcaprec_hdr_t hdr = {};
	562	struct timeval tv;
	563	unsigned i;
	564	size_t w;
	565
	566	if (!f)
	567	f = stdout;
	568
	569	assert(m);
	570	assert(snaplen > 0);
	571	assert((size_t) (uint32_t) snaplen == snaplen);
	572
	573	if (m->realtime != 0)
	574	timeval_store(&tv, m->realtime);
	575	else
	576	assert_se(gettimeofday(&tv, NULL) >= 0);
	577
	578	hdr.ts_sec = tv.tv_sec;
	579	hdr.ts_usec = tv.tv_usec;
	580	hdr.orig_len = BUS_MESSAGE_SIZE(m);
	581	hdr.incl_len = MIN(hdr.orig_len, snaplen);
	582
	583	/* write the pcap header */
	584	fwrite(&hdr, 1, sizeof(hdr), f);
	585
	586	/* write the dbus header */
	587	w = MIN(BUS_MESSAGE_BODY_BEGIN(m), snaplen);
	588	fwrite(m->header, 1, w, f);
	589	snaplen -= w;
	590
	591	/* write the dbus body */
	592	MESSAGE_FOREACH_PART(part, i, m) {
	593	if (snaplen <= 0)
	594	break;
	595
	596	w = MIN(part->size, snaplen);
	597	fwrite(part->data, 1, w, f);
	598	snaplen -= w;
	599	}
	600
dacd6cee	601	return fflush_and_check(f);
1f70b087	602	}