| /*-*- 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 "audit.h" |
| |
| #include "bus-message.h" |
| #include "bus-internal.h" |
| #include "bus-type.h" |
| #include "bus-dump.h" |
| |
| static char *indent(unsigned level) { |
| char *p; |
| |
| p = new(char, 2 + level + 1); |
| if (!p) |
| return NULL; |
| |
| p[0] = p[1] = ' '; |
| memset(p + 2, '\t', level); |
| p[2 + level] = 0; |
| |
| return p; |
| } |
| |
| int bus_message_dump(sd_bus_message *m, FILE *f, bool with_header) { |
| unsigned level = 1; |
| int r; |
| |
| assert(m); |
| |
| if (!f) |
| f = stdout; |
| |
| if (with_header) { |
| fprintf(f, |
| "%s%s%sType=%s%s%s Endian=%c Flags=%u Version=%u Priority=%lli", |
| 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, |
| (long long) 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=%lu", (unsigned long) BUS_MESSAGE_COOKIE(m)); |
| |
| if (m->reply_cookie != 0) |
| fprintf(f, " ReplyCookie=%lu", (unsigned long) 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=%llu", (unsigned long long) m->monotonic); |
| if (m->realtime != 0) |
| fprintf(f, " Realtime=%llu", (unsigned long long) m->realtime); |
| if (m->seqnum != 0) |
| fprintf(f, " SequenceNumber=%llu", (unsigned long long) m->seqnum); |
| |
| if (m->monotonic != 0 || m->realtime != 0 || m->seqnum != 0) |
| fputs("\n", f); |
| |
| bus_creds_dump(&m->creds, f); |
| } |
| |
| r = sd_bus_message_rewind(m, true); |
| if (r < 0) { |
| log_error("Failed to rewind: %s", strerror(-r)); |
| return r; |
| } |
| |
| fprintf(f, " MESSAGE \"%s\" {\n", 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) { |
| log_error("Failed to peek type: %s", strerror(-r)); |
| return r; |
| } |
| |
| if (r == 0) { |
| if (level <= 1) |
| break; |
| |
| r = sd_bus_message_exit_container(m); |
| if (r < 0) { |
| log_error("Failed to exit container: %s", strerror(-r)); |
| return r; |
| } |
| |
| level--; |
| |
| prefix = indent(level); |
| if (!prefix) |
| return log_oom(); |
| |
| fprintf(f, "%s};\n", prefix); |
| continue; |
| } |
| |
| prefix = indent(level); |
| if (!prefix) |
| return log_oom(); |
| |
| if (bus_type_is_container(type) > 0) { |
| r = sd_bus_message_enter_container(m, type, contents); |
| if (r < 0) { |
| log_error("Failed to enter container: %s", strerror(-r)); |
| return r; |
| } |
| |
| 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) { |
| log_error("Failed to get basic: %s", strerror(-r)); |
| return r; |
| } |
| |
| 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%lli%s;\n", prefix, ansi_highlight(), (long long) basic.s64, ansi_highlight_off()); |
| break; |
| |
| case SD_BUS_TYPE_UINT64: |
| fprintf(f, "%sUINT64 %s%llu%s;\n", prefix, ansi_highlight(), (unsigned long long) 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."); |
| } |
| } |
| |
| fprintf(f, " };\n\n"); |
| return 0; |
| } |
| |
| static void dump_capabilities( |
| sd_bus_creds *c, |
| FILE *f, |
| const char *name, |
| 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=", name); |
| last_cap = cap_last_cap(); |
| |
| for (;;) { |
| if (r > 0) { |
| _cleanup_cap_free_charp_ char *t; |
| |
| if (n > 0) |
| fputc(' ', f); |
| if (n % 4 == 3) |
| fputs("\n ", f); |
| |
| t = cap_to_name(i); |
| fprintf(f, "%s", t); |
| n++; |
| } |
| |
| i++; |
| |
| if (i > last_cap) |
| break; |
| |
| r = has(c, i); |
| } |
| |
| fputs("\n", f); |
| } |
| |
| int bus_creds_dump(sd_bus_creds *c, FILE *f) { |
| 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; |
| int r; |
| |
| assert(c); |
| |
| if (!f) |
| f = stdout; |
| |
| if (c->mask & SD_BUS_CREDS_PID) |
| fprintf(f, " PID=%lu", (unsigned long) c->pid); |
| if (c->mask & SD_BUS_CREDS_PID_STARTTIME) |
| fprintf(f, " PIDStartTime=%llu", (unsigned long long) c->pid_starttime); |
| if (c->mask & SD_BUS_CREDS_TID) |
| fprintf(f, " TID=%lu", (unsigned long) c->tid); |
| if (c->mask & SD_BUS_CREDS_UID) |
| fprintf(f, " UID=%lu", (unsigned long) c->uid); |
| r = sd_bus_creds_get_owner_uid(c, &owner); |
| if (r >= 0) |
| fprintf(f, " OwnerUID=%lu", (unsigned long) owner); |
| if (c->mask & SD_BUS_CREDS_GID) |
| fprintf(f, " GID=%lu", (unsigned long) c->gid); |
| |
| if ((c->mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_PID_STARTTIME|SD_BUS_CREDS_TID|SD_BUS_CREDS_UID|SD_BUS_CREDS_GID)) || r >= 0) |
| fputs("\n", f); |
| |
| if (c->mask & SD_BUS_CREDS_EXE) |
| fprintf(f, " Exe=%s", c->exe); |
| if (c->mask & SD_BUS_CREDS_COMM) |
| fprintf(f, " Comm=%s", c->comm); |
| if (c->mask & SD_BUS_CREDS_TID_COMM) |
| fprintf(f, " TIDComm=%s", c->tid_comm); |
| |
| if (c->mask & (SD_BUS_CREDS_EXE|SD_BUS_CREDS_COMM|SD_BUS_CREDS_TID_COMM)) |
| fputs("\n", f); |
| |
| if (c->mask & SD_BUS_CREDS_SELINUX_CONTEXT) |
| fprintf(f, " Label=%s", c->label); |
| if (c->mask & SD_BUS_CREDS_CONNECTION_NAME) |
| fprintf(f, " ConnectionName=%s", c->conn_name); |
| |
| if (c->mask & (SD_BUS_CREDS_SELINUX_CONTEXT|SD_BUS_CREDS_CONNECTION_NAME)) |
| fputs("\n", f); |
| |
| if (sd_bus_creds_get_cmdline(c, &cmdline) >= 0) { |
| char **i; |
| |
| fputs(" CommandLine={", f); |
| STRV_FOREACH(i, cmdline) { |
| if (i != cmdline) |
| fputc(' ', f); |
| |
| fputs(*i, f); |
| } |
| |
| fputs("}\n", f); |
| } |
| |
| if (c->mask & SD_BUS_CREDS_CGROUP) |
| fprintf(f, " CGroup=%s", c->cgroup); |
| sd_bus_creds_get_unit(c, &u); |
| if (u) |
| fprintf(f, " Unit=%s", u); |
| sd_bus_creds_get_user_unit(c, &uu); |
| if (uu) |
| fprintf(f, " UserUnit=%s", uu); |
| sd_bus_creds_get_slice(c, &sl); |
| if (sl) |
| fprintf(f, " Slice=%s", sl); |
| sd_bus_creds_get_session(c, &s); |
| if (s) |
| fprintf(f, " Session=%s", s); |
| |
| if ((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, " AuditLoginUID=%lu", (unsigned long) audit_loginuid); |
| } |
| if (sd_bus_creds_get_audit_session_id(c, &audit_sessionid) >= 0) { |
| audit_sessionid_is_set = true; |
| fprintf(f, " AuditSessionID=%lu", (unsigned long) audit_sessionid); |
| } |
| |
| if (audit_loginuid_is_set || audit_sessionid_is_set) |
| fputs("\n", f); |
| |
| if (c->mask & SD_BUS_CREDS_UNIQUE_NAME) |
| fprintf(f, " UniqueName=%s", c->unique_name); |
| |
| if (sd_bus_creds_get_well_known_names(c, &well_known) >= 0) { |
| char **i; |
| |
| fputs(" WellKnownNames={", f); |
| STRV_FOREACH(i, well_known) { |
| if (i != well_known) |
| fputc(' ', f); |
| |
| fputs(*i, f); |
| } |
| |
| fputc('}', f); |
| } |
| |
| if (c->mask & SD_BUS_CREDS_UNIQUE_NAME || well_known) |
| fputc('\n', f); |
| |
| dump_capabilities(c, f, "EffectiveCapabilities", sd_bus_creds_has_effective_cap); |
| dump_capabilities(c, f, "PermittedCapabilities", sd_bus_creds_has_permitted_cap); |
| dump_capabilities(c, f, "InheritableCapabilities", sd_bus_creds_has_inheritable_cap); |
| dump_capabilities(c, f, "BoundingCapabilities", sd_bus_creds_has_bounding_cap); |
| |
| return 0; |
| } |