b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen#include <sys/signalfd.h>

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen#include <sys/ioctl.h>

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen#include <linux/sockios.h>

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include <sys/statvfs.h>

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include <sys/mman.h>

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen#ifdef HAVE_SELINUX

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen#include <selinux/selinux.h>

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen#endif

d122f9ee3a0e3c02ff8100a3dcd1866e90a6537aTom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen#include <libudev.h>

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen#include "sd-journal.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "sd-messages.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "sd-daemon.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "mkdir.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "rm-rf.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "hashmap.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "journal-file.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "socket-util.h"

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include "cgroup-util.h"

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include "missing.h"

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include "conf-parser.h"

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include "selinux-util.h"

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#include "acl-util.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "formats-util.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "process-util.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "hostname-util.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "signal-util.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "journal-internal.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "journal-vacuum.h"

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#include "journal-authenticate.h"

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen#include "journald-rate-limit.h"

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen#include "journald-kmsg.h"

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#include "journald-syslog.h"

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#include "journald-stream.h"

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#include "journald-native.h"

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen#include "journald-audit.h"

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#include "journald-server.h"

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#define USER_JOURNALS_MAX 1024

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen#define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE)

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC)

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#define DEFAULT_RATE_LIMIT_BURST 1000

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen#define DEFAULT_MAX_FILE_USEC USEC_PER_MONTH

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen

7c16313f11e3953f3fe4dbf544f2d36f58d14138Tom Gundersen#define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC)

756775814cf69471f74ce853745bba69f2ba94efThomas Hindoe Paaboel Andersen

7c16313f11e3953f3fe4dbf544f2d36f58d14138Tom Gundersenstatic const char* const storage_table[_STORAGE_MAX] = {

7c16313f11e3953f3fe4dbf544f2d36f58d14138Tom Gundersen [STORAGE_AUTO] = "auto",

7c16313f11e3953f3fe4dbf544f2d36f58d14138Tom Gundersen [STORAGE_VOLATILE] = "volatile",

7c16313f11e3953f3fe4dbf544f2d36f58d14138Tom Gundersen [STORAGE_PERSISTENT] = "persistent",

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen [STORAGE_NONE] = "none"

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen};

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom GundersenDEFINE_STRING_TABLE_LOOKUP(storage, Storage);

b44cd8821087f2afebf85fec5b588f5720a9415cTom GundersenDEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting");

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersenstatic const char* const split_mode_table[_SPLIT_MAX] = {

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen [SPLIT_LOGIN] = "login",

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen [SPLIT_UID] = "uid",

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen [SPLIT_NONE] = "none",

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen};

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom GundersenDEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom GundersenDEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting");

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersenstatic uint64_t available_space(Server *s, bool verbose) {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen char ids[33];

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen _cleanup_free_ char *p = NULL;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen sd_id128_t machine;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen struct statvfs ss;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen uint64_t sum = 0, ss_avail = 0, avail = 0;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen int r;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen _cleanup_closedir_ DIR *d = NULL;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen usec_t ts;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen const char *f;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen JournalMetrics *m;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen ts = now(CLOCK_MONOTONIC);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen && !verbose)

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen return s->cached_available_space;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen r = sd_id128_get_machine(&machine);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (r < 0)

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen return 0;

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt if (s->system_journal) {

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt f = "/var/log/journal/";

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt m = &s->system_metrics;

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt } else {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen f = "/run/log/journal/";

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen m = &s->runtime_metrics;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen assert(m);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen p = strappend(f, sd_id128_to_string(machine, ids));

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (!p)

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen return 0;

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen d = opendir(p);

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering if (!d)

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering return 0;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering if (fstatvfs(dirfd(d), &ss) < 0)

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering return 0;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering for (;;) {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen struct stat st;

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering struct dirent *de;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering errno = 0;

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering de = readdir(d);

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering if (!de && errno != 0)

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering return 0;

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering if (!de)

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering break;

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering if (!endswith(de->d_name, ".journal") &&

3bdace9bf779ce051f00c14914b35c3a26164aa9Lennart Poettering !endswith(de->d_name, ".journal~"))

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen continue;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0)

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen continue;

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen if (!S_ISREG(st.st_mode))

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen continue;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen sum += (uint64_t) st.st_blocks * 512UL;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen }

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen ss_avail = ss.f_bsize * ss.f_bavail;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen /* If we reached a high mark, we will always allow this much

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen if (m->use < sum)

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen m->use = sum;

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen avail = LESS_BY(ss_avail, m->keep_free);

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen s->cached_available_space = LESS_BY(MIN(m->max_use, avail), sum);

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen s->cached_available_space_timestamp = ts;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen if (verbose) {

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX],

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX];

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE,

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen "%s journal is using %s (max allowed %s, "

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen "trying to leave %s free of %s available → current limit %s).",

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen s->system_journal ? "Permanent" : "Runtime",

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen format_bytes(fb1, sizeof(fb1), sum),

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen format_bytes(fb2, sizeof(fb2), m->max_use),

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen format_bytes(fb3, sizeof(fb3), m->keep_free),

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen format_bytes(fb4, sizeof(fb4), ss_avail),

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen format_bytes(fb5, sizeof(fb5), s->cached_available_space + sum));

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen }

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen return s->cached_available_space;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen}

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersenvoid server_fix_perms(Server *s, JournalFile *f, uid_t uid) {

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen int r;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen#ifdef HAVE_ACL

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen acl_t acl;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen acl_entry_t entry;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen acl_permset_t permset;

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen#endif

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen assert(f);

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen r = fchmod(f->fd, 0640);

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen if (r < 0)

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen log_warning_errno(r, "Failed to fix access mode on %s, ignoring: %m", f->path);

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen#ifdef HAVE_ACL

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen if (uid <= SYSTEM_UID_MAX)

b44cd8821087f2afebf85fec5b588f5720a9415cTom Gundersen return;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen acl = acl_get_fd(f->fd);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (!acl) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen log_warning_errno(errno, "Failed to read ACL on %s, ignoring: %m", f->path);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen return;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen }

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen r = acl_find_uid(acl, uid, &entry);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (r <= 0) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (acl_create_entry(&acl, &entry) < 0 ||

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen acl_set_tag_type(entry, ACL_USER) < 0 ||

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen acl_set_qualifier(entry, &uid) < 0) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen goto finish;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen }

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen /* We do not recalculate the mask unconditionally here,

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (acl_get_permset(entry, &permset) < 0 ||

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen acl_add_perm(permset, ACL_READ) < 0 ||

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen calc_acl_mask_if_needed(&acl) < 0) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen goto finish;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (acl_set_fd(f->fd, acl) < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_warning_errno(errno, "Failed to set ACL on %s, ignoring: %m", f->path);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersenfinish:

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen acl_free(acl);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen#endif

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen}

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersenstatic JournalFile* find_journal(Server *s, uid_t uid) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen _cleanup_free_ char *p = NULL;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen int r;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen JournalFile *f;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen sd_id128_t machine;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen assert(s);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen /* We split up user logs only on /var, not on /run. If the

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (s->runtime_journal)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return s->runtime_journal;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (uid <= SYSTEM_UID_MAX)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return s->system_journal;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = sd_id128_get_machine(&machine);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return s->system_journal;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen f = ordered_hashmap_get(s->user_journals, UINT32_TO_PTR(uid));

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (f)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return f;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-"UID_FMT".journal",

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen SD_ID128_FORMAT_VAL(machine), uid) < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return s->system_journal;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen while (ordered_hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen /* Too many open? Then let's close one */

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen f = ordered_hashmap_steal_first(s->user_journals);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen assert(f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen journal_file_close(f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = journal_file_open_reliably(p, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return s->system_journal;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen server_fix_perms(s, f, uid);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = ordered_hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen journal_file_close(f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return s->system_journal;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return f;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen}

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersenstatic int do_rotate(

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen Server *s,

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen JournalFile **f,

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen const char* name,

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen bool seal,

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen uint32_t uid) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen int r;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen assert(s);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (!*f)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return -EINVAL;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = journal_file_rotate(f, s->compress, seal);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (*f)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_error_errno(r, "Failed to rotate %s: %m", (*f)->path);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen else

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_error_errno(r, "Failed to create new %s journal: %m", name);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen else

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen server_fix_perms(s, *f, uid);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen return r;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen}

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersenvoid server_rotate(Server *s) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen JournalFile *f;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen void *k;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen Iterator i;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen int r;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_debug("Rotating...");

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen do_rotate(s, &s->runtime_journal, "runtime", false, 0);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen do_rotate(s, &s->system_journal, "system", s->seal, 0);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = do_rotate(s, &f, "user", s->seal, PTR_TO_UINT32(k));

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r >= 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen ordered_hashmap_replace(s->user_journals, k, f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen else if (!f)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen /* Old file has been closed and deallocated */

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen ordered_hashmap_remove(s->user_journals, k);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen}

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersenvoid server_sync(Server *s) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen JournalFile *f;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen void *k;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen Iterator i;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen int r;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (s->system_journal) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = journal_file_set_offline(s->system_journal);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_error_errno(r, "Failed to sync system journal: %m");

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = journal_file_set_offline(f);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_error_errno(r, "Failed to sync user journal: %m");

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (s->sync_event_source) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_OFF);

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen if (r < 0)

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen log_error_errno(r, "Failed to disable sync timer source: %m");

d6bd972d061af306ede2affd2c9340a1660f7996Tom Gundersen }

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen s->sync_scheduled = false;

d6bd972d061af306ede2affd2c9340a1660f7996Tom Gundersen}

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersenstatic void do_vacuum(

d6bd972d061af306ede2affd2c9340a1660f7996Tom Gundersen Server *s,

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen const char *id,

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen JournalFile *f,

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen const char* path,

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen JournalMetrics *metrics) {

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen const char *p;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen int r;

969b009d9416806911b9b52e7e7bc619c0c1a931Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (!f)

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen return;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen p = strjoina(path, id);

1231c4d238844e77018caf5b5852f01d96373c47Tom Gundersen r = journal_directory_vacuum(p, metrics->max_use, s->max_retention_usec, &s->oldest_file_usec, false);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (r < 0 && r != -ENOENT)

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen log_error_errno(r, "Failed to vacuum %s: %m", p);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen}

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersenvoid server_vacuum(Server *s) {

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen char ids[33];

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sd_id128_t machine;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen int r;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen log_debug("Vacuuming...");

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen s->oldest_file_usec = 0;

76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams

76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams r = sd_id128_get_machine(&machine);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (r < 0) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen log_error_errno(r, "Failed to get machine ID: %m");

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen return;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen }

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sd_id128_to_string(machine, ids);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen do_vacuum(s, ids, s->system_journal, "/var/log/journal/", &s->system_metrics);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen do_vacuum(s, ids, s->runtime_journal, "/run/log/journal/", &s->runtime_metrics);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen s->cached_available_space_timestamp = 0;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen}

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersenstatic void server_cache_machine_id(Server *s) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sd_id128_t id;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen int r;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen assert(s);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen r = sd_id128_get_machine(&id);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (r < 0)

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen return;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sd_id128_to_string(id, stpcpy(s->machine_id_field, "_MACHINE_ID="));

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen}

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersenstatic void server_cache_boot_id(Server *s) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sd_id128_t id;

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen int r;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen assert(s);

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen r = sd_id128_get_boot(&id);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (r < 0)

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen return;

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen sd_id128_to_string(id, stpcpy(s->boot_id_field, "_BOOT_ID="));

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen}

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersenstatic void server_cache_hostname(Server *s) {

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen _cleanup_free_ char *t = NULL;

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen char *x;

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen assert(s);

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen t = gethostname_malloc();

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (!t)

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen return;

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen x = strappend("_HOSTNAME=", t);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (!x)

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen return;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen free(s->hostname_field);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen s->hostname_field = x;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen}

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersenstatic bool shall_try_append_again(JournalFile *f, int r) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen /* -E2BIG Hit configured limit

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC)

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen log_debug("%s: Allocation limit reached, rotating.", f->path);

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen else if (r == -EHOSTDOWN)

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen log_info("%s: Journal file from other machine, rotating.", f->path);

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen else if (r == -EBUSY)

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen log_info("%s: Unclean shutdown, rotating.", f->path);

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen else if (r == -EPROTONOSUPPORT)

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen log_info("%s: Unsupported feature, rotating.", f->path);

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN)

59b8f6b628145586e87b8a4f6e29c755ad7d61edTom Gundersen log_warning("%s: Journal file corrupted, rotating.", f->path);

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering else if (r == -EIO)

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering log_warning("%s: IO error, rotating.", f->path);

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering else if (r == -EIDRM)

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering log_warning("%s: Journal file has been deleted, rotating.", f->path);

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering else

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering return false;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering return true;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering}

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersenstatic void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen JournalFile *f;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen bool vacuumed = false;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen int r;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen assert(s);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen assert(iovec);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen assert(n > 0);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen f = find_journal(s, uid);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen if (!f)

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen return;

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen if (journal_file_rotate_suggested(f, s->max_file_usec)) {

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen server_rotate(s);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen server_vacuum(s);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen vacuumed = true;

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen f = find_journal(s, uid);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen if (!f)

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen return;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen }

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen if (r >= 0) {

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen server_schedule_sync(s, priority);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen return;

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen }

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen if (vacuumed || !shall_try_append_again(f, r)) {

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen log_error_errno(r, "Failed to write entry (%d items, %zu bytes), ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n));

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen return;

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen }

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen server_rotate(s);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen server_vacuum(s);

76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams

76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams f = find_journal(s, uid);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen if (!f)

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen return;

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen log_debug("Retrying write.");

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen if (r < 0)

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen log_error_errno(r, "Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n));

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen else

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen server_schedule_sync(s, priority);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen}

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersenstatic void dispatch_message_real(

c15fb62a731f1a457af94e60ac6a4d23f219a8f6Thomas Hindoe Paaboel Andersen Server *s,

c15fb62a731f1a457af94e60ac6a4d23f219a8f6Thomas Hindoe Paaboel Andersen struct iovec *iovec, unsigned n, unsigned m,

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen const struct ucred *ucred,

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen const struct timeval *tv,

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen const char *label, size_t label_len,

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen const char *unit_id,

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen int priority,

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen pid_t object_pid) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)],

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)],

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)],

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)],

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)],

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)],

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)],

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)];

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen uid_t object_uid;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen gid_t object_gid;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen char *x;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen int r;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen char *t, *c;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen uid_t realuid = 0, owner = 0, journal_uid;

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen bool owner_valid = false;

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen#ifdef HAVE_AUDIT

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)],

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)],

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)];

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen uint32_t audit;

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen uid_t loginuid;

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen#endif

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen assert(s);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen assert(iovec);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen assert(n > 0);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (ucred) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen realuid = ucred->uid;

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen sprintf(pid, "_PID="PID_FMT, ucred->pid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], pid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen sprintf(uid, "_UID="UID_FMT, ucred->uid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], uid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen sprintf(gid, "_GID="GID_FMT, ucred->gid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], gid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = get_process_comm(ucred->pid, &t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (r >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen x = strjoina("_COMM=", t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen free(t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = get_process_exe(ucred->pid, &t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (r >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen x = strjoina("_EXE=", t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen free(t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = get_process_cmdline(ucred->pid, 0, false, &t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (r >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen x = strjoina("_CMDLINE=", t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen free(t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

e2acdb6b0f68d9b4152708a9f21bf9e11f8b9e7eTorstein Husebø }

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = get_process_capeff(ucred->pid, &t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (r >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen x = strjoina("_CAP_EFFECTIVE=", t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen free(t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen#ifdef HAVE_AUDIT

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = audit_session_from_pid(ucred->pid, &audit);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (r >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen sprintf(audit_session, "_AUDIT_SESSION=%"PRIu32, audit);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], audit_session);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = audit_loginuid_from_pid(ucred->pid, &loginuid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (r >= 0) {

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen sprintf(audit_loginuid, "_AUDIT_LOGINUID="UID_FMT, loginuid);

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen IOVEC_SET_STRING(iovec[n++], audit_loginuid);

c7d9ffe6d629cb5b34dd749e4a88b190b11a0f48Tom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen#endif

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &c);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (r >= 0) {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen char *session = NULL;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen x = strjoina("_SYSTEMD_CGROUP=", c);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen r = cg_path_get_session(c, &t);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (r >= 0) {

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen session = strjoina("_SYSTEMD_SESSION=", t);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen free(t);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], session);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (cg_path_get_owner_uid(c, &owner) >= 0) {

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen owner_valid = true;

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen sprintf(owner_uid, "_SYSTEMD_OWNER_UID="UID_FMT, owner);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], owner_uid);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen }

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen if (cg_path_get_unit(c, &t) >= 0) {

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen x = strjoina("_SYSTEMD_UNIT=", t);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen free(t);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen } else if (unit_id && !session) {

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen x = strjoina("_SYSTEMD_UNIT=", unit_id);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (cg_path_get_user_unit(c, &t) >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen x = strjoina("_SYSTEMD_USER_UNIT=", t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen free(t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen } else if (unit_id && session) {

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen x = strjoina("_SYSTEMD_USER_UNIT=", unit_id);

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen }

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen if (cg_path_get_slice(c, &t) >= 0) {

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen x = strjoina("_SYSTEMD_SLICE=", t);

816e2e7af96886e4a43194042ef61ba9fec2c77dTom Gundersen free(t);

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen IOVEC_SET_STRING(iovec[n++], x);

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen free(c);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen } else if (unit_id) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen x = strjoina("_SYSTEMD_UNIT=", unit_id);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen#ifdef HAVE_SELINUX

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (mac_selinux_use()) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (label) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen } else {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen security_context_t con;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (getpidcon(ucred->pid, &con) >= 0) {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen x = strjoina("_SELINUX_CONTEXT=", con);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen freecon(con);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen#endif

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen assert(n <= m);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (object_pid) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen r = get_process_uid(object_pid, &object_uid);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (r >= 0) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sprintf(o_uid, "OBJECT_UID="UID_FMT, object_uid);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen IOVEC_SET_STRING(iovec[n++], o_uid);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen }

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen r = get_process_gid(object_pid, &object_gid);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (r >= 0) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen sprintf(o_gid, "OBJECT_GID="GID_FMT, object_gid);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen IOVEC_SET_STRING(iovec[n++], o_gid);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen }

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen r = get_process_comm(object_pid, &t);

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (r >= 0) {

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen x = strjoina("OBJECT_COMM=", t);

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen free(t);

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen }

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen r = get_process_exe(object_pid, &t);

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen if (r >= 0) {

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen x = strjoina("OBJECT_EXE=", t);

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen free(t);

5b34277c2015e32e51d10cfa076df2c7106b4537Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen r = get_process_cmdline(object_pid, 0, false, &t);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen if (r >= 0) {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen x = strjoina("OBJECT_CMDLINE=", t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen free(t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#ifdef HAVE_AUDIT

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen r = audit_session_from_pid(object_pid, &audit);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (r >= 0) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%"PRIu32, audit);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], o_audit_session);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen r = audit_loginuid_from_pid(object_pid, &loginuid);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (r >= 0) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID="UID_FMT, loginuid);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], o_audit_loginuid);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen#endif

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen r = cg_pid_get_path_shifted(object_pid, s->cgroup_root, &c);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (r >= 0) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen x = strjoina("OBJECT_SYSTEMD_CGROUP=", c);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen r = cg_path_get_session(c, &t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (r >= 0) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen x = strjoina("OBJECT_SYSTEMD_SESSION=", t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen free(t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (cg_path_get_owner_uid(c, &owner) >= 0) {

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID="UID_FMT, owner);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], o_owner_uid);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (cg_path_get_unit(c, &t) >= 0) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen x = strjoina("OBJECT_SYSTEMD_UNIT=", t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen free(t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen if (cg_path_get_user_unit(c, &t) >= 0) {

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen x = strjoina("OBJECT_SYSTEMD_USER_UNIT=", t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen free(t);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen IOVEC_SET_STRING(iovec[n++], x);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen free(c);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen assert(n <= m);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen if (tv) {

a7f7d1bde43fc825c49afea3f946f5b4b3d563e0Harald Hoyer sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv));

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], source_time);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen }

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen /* Note that strictly speaking storing the boot id here is

02557f973aed0fed7154fefe53d67e2935f918dcThomas Hindoe Paaboel Andersen if (!isempty(s->boot_id_field))

02557f973aed0fed7154fefe53d67e2935f918dcThomas Hindoe Paaboel Andersen IOVEC_SET_STRING(iovec[n++], s->boot_id_field);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

02557f973aed0fed7154fefe53d67e2935f918dcThomas Hindoe Paaboel Andersen if (!isempty(s->machine_id_field))

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], s->machine_id_field);

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen if (!isempty(s->hostname_field))

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen IOVEC_SET_STRING(iovec[n++], s->hostname_field);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen assert(n <= m);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen if (s->split_mode == SPLIT_UID && realuid > 0)

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen /* Split up strictly by any UID */

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen journal_uid = realuid;

bff92d2c2f913c368d80066ee89855665818edc8Susant Sahani else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0)

bff92d2c2f913c368d80066ee89855665818edc8Susant Sahani /* Split up by login UIDs. We do this only if the

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen journal_uid = owner;

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen else

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen journal_uid = 0;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen write_to_journal(s, journal_uid, iovec, n, priority);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen}

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersenvoid server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen char mid[11 + 32 + 1];

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen char buffer[16 + LINE_MAX + 1];

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen struct iovec iovec[N_IOVEC_META_FIELDS + 4];

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen int n = 0;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen va_list ap;

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen struct ucred ucred = {};

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen assert(s);

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen assert(format);

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen IOVEC_SET_STRING(iovec[n++], "PRIORITY=6");

87322b3aee0dc649ff1ae7a403dcc9d7305baba2Tom Gundersen IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver");

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen memcpy(buffer, "MESSAGE=", 8);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen va_start(ap, format);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen va_end(ap);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen IOVEC_SET_STRING(iovec[n++], buffer);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen if (!sd_id128_equal(message_id, SD_ID128_NULL)) {

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen snprintf(mid, sizeof(mid), LOG_MESSAGE_ID(message_id));

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen IOVEC_SET_STRING(iovec[n++], mid);

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen }

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen ucred.pid = getpid();

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen ucred.uid = getuid();

bd57b45029ff25067704c9538e79f31e71c10045Tom Gundersen ucred.gid = getgid();

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0);

2dead8129f7b6fe644e17e1dc1739bebacfe1364Tom Gundersen}

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersenvoid server_dispatch_message(

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen Server *s,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen struct iovec *iovec, unsigned n, unsigned m,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen const struct ucred *ucred,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen const struct timeval *tv,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen const char *label, size_t label_len,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen const char *unit_id,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen int priority,

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen pid_t object_pid) {

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen int rl, r;

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen _cleanup_free_ char *path = NULL;

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen char *c;

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen assert(s);

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen assert(iovec || n == 0);

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen if (n == 0)

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen return;

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen if (LOG_PRI(priority) > s->max_level_store)

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen return;

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen

500792d8180c9a11d65f107cdc79dea21b2964c4Tom Gundersen /* Stop early in case the information will not be stored

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen if (s->storage == STORAGE_NONE)

4dc355680460fdc8e0d590d8572dff1b6a257d88Tom Gundersen return;

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen if (!ucred)

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen goto finish;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &path);

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen if (r < 0)

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen goto finish;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen /* example: /user/lennart/3/foobar

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen c = strchr(path, '/');

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (c) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen c = strchr(c+1, '/');

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (c) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen c = strchr(c+1, '/');

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (c)

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen *c = 0;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen }

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen }

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen rl = journal_rate_limit_test(s->rate_limit, path,

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen priority & LOG_PRIMASK, available_space(s, false));

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (rl == 0)

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen return;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen /* Write a suppression message if we suppressed something */

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (rl > 1)

a38d99451f2bf8026ec51aee91662292e823c6a8Lennart Poettering server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED,

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen "Suppressed %u messages from %s", rl - 1, path);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

be077570f779664ed87b50f60608df9fbe258821Tom Gundersenfinish:

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen}

2a1288ff89322a2f49c79f6d1832c8164c14a05cLennart Poettering

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersenstatic int system_journal_open(Server *s, bool flush_requested) {

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen int r;

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen char *fn;

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen sd_id128_t machine;

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen char ids[33];

a6f1e036de8f212f33ead7f5387c297afd8be26eTom Gundersen

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen r = sd_id128_get_machine(&machine);

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen if (r < 0)

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen return log_error_errno(r, "Failed to get machine id: %m");

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen sd_id128_to_string(machine, ids);

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen

3a864fe4a894745ac61f1ecabd7cadf04139a284Tom Gundersen if (!s->system_journal &&

be077570f779664ed87b50f60608df9fbe258821Tom Gundersen (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) &&

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen (flush_requested

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen || access("/run/systemd/journal/flushed", F_OK) >= 0)) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen /* If in auto mode: first try to create the machine

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (s->storage == STORAGE_PERSISTENT)

20af7091de0cdf92bf299addfc3f96c3ef805bd8Tom Gundersen (void) mkdir("/var/log/journal/", 0755);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen fn = strjoina("/var/log/journal/", ids);

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen (void) mkdir(fn, 0755);

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen fn = strjoina(fn, "/system.journal");

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &s->system_journal);

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen if (r >= 0)

8de4a226c71ef43e652274b33b5d19211a44ac7bTom Gundersen server_fix_perms(s, s->system_journal, 0);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen else if (r < 0) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (r != -ENOENT && r != -EROFS)

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen log_warning_errno(r, "Failed to open system journal: %m");

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen r = 0;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen }

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen }

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (!s->runtime_journal &&

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen (s->storage != STORAGE_NONE)) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen fn = strjoin("/run/log/journal/", ids, "/system.journal", NULL);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (!fn)

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen return -ENOMEM;

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (s->system_journal) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen /* Try to open the runtime journal, but only

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen r = journal_file_open(fn, O_RDWR, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen free(fn);

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (r < 0) {

ff734080aa02cd70b13bc0fdeec4a5886166163aTom Gundersen if (r != -ENOENT)

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen log_warning_errno(r, "Failed to open runtime journal: %m");

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen r = 0;

621ac3d2cc8f37169166df9c7f379b0cb6b17e36Thomas Hindoe Paaboel Andersen }

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen } else {

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen /* OK, we really need the runtime journal, so create

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen (void) mkdir("/run/log", 0755);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen (void) mkdir("/run/log/journal", 0755);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen (void) mkdir_parents(fn, 0750);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen free(fn);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen if (r < 0)

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen return log_error_errno(r, "Failed to open runtime journal: %m");

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen }

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen if (s->runtime_journal)

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen server_fix_perms(s, s->runtime_journal, 0);

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen }

527503444ef24ae03c73cf85128c7acbb1146f3cTom Gundersen

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering available_space(s, true);

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering return r;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering}

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poetteringint server_flush_to_var(Server *s) {

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering sd_id128_t machine;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering sd_journal *j = NULL;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering char ts[FORMAT_TIMESPAN_MAX];

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering usec_t start;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering unsigned n = 0;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering int r;

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering assert(s);

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering

8eb9058dc1f99a5eb9b8726a978fcc0720837a10Lennart Poettering if (s->storage != STORAGE_AUTO &&

s->storage != STORAGE_PERSISTENT)

return 0;

if (!s->runtime_journal)

return 0;

system_journal_open(s, true);

if (!s->system_journal)

return 0;

log_debug("Flushing to /var...");

start = now(CLOCK_MONOTONIC);

r = sd_id128_get_machine(&machine);

if (r < 0)

return r;

r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);

if (r < 0)

return log_error_errno(r, "Failed to read runtime journal: %m");

sd_journal_set_data_threshold(j, 0);

SD_JOURNAL_FOREACH(j) {

Object *o = NULL;

JournalFile *f;

f = j->current_file;

assert(f && f->current_offset > 0);

n++;

r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);

if (r < 0) {

log_error_errno(r, "Can't read entry: %m");

goto finish;

}

r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);

if (r >= 0)

continue;

if (!shall_try_append_again(s->system_journal, r)) {

log_error_errno(r, "Can't write entry: %m");

goto finish;

}

server_rotate(s);

server_vacuum(s);

if (!s->system_journal) {

log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful.");

r = -EIO;

goto finish;

}

log_debug("Retrying write.");

r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL);

if (r < 0) {

log_error_errno(r, "Can't write entry: %m");

goto finish;

}

}

finish:

journal_file_post_change(s->system_journal);

journal_file_close(s->runtime_journal);

s->runtime_journal = NULL;

if (r >= 0)

(void) rm_rf("/run/log/journal", REMOVE_ROOT);

sd_journal_close(j);

server_driver_message(s, SD_ID128_NULL, "Time spent on flushing to /var is %s for %u entries.", format_timespan(ts, sizeof(ts), now(CLOCK_MONOTONIC) - start, 0), n);

return r;

}

int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata) {

Server *s = userdata;

struct ucred *ucred = NULL;

struct timeval *tv = NULL;

struct cmsghdr *cmsg;

char *label = NULL;

size_t label_len = 0, m;

struct iovec iovec;

ssize_t n;

int *fds = NULL, v = 0;

unsigned n_fds = 0;

union {

struct cmsghdr cmsghdr;

/* We use NAME_MAX space for the SELinux label

uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) +

CMSG_SPACE(sizeof(struct timeval)) +

CMSG_SPACE(sizeof(int)) + /* fd */

CMSG_SPACE(NAME_MAX)]; /* selinux label */

} control = {};

union sockaddr_union sa = {};

struct msghdr msghdr = {

.msg_iov = &iovec,

.msg_iovlen = 1,

.msg_control = &control,

.msg_controllen = sizeof(control),

.msg_name = &sa,

.msg_namelen = sizeof(sa),

};

assert(s);

assert(fd == s->native_fd || fd == s->syslog_fd || fd == s->audit_fd);

if (revents != EPOLLIN) {

log_error("Got invalid event from epoll for datagram fd: %"PRIx32, revents);

return -EIO;

}

/* Try to get the right size, if we can. (Not all

(void) ioctl(fd, SIOCINQ, &v);

/* Fix it up, if it is too small. We use the same fixed value as auditd here. Awful! */

m = PAGE_ALIGN(MAX3((size_t) v + 1,

(size_t) LINE_MAX,

ALIGN(sizeof(struct nlmsghdr)) + ALIGN((size_t) MAX_AUDIT_MESSAGE_LENGTH)) + 1);

if (!GREEDY_REALLOC(s->buffer, s->buffer_size, m))

return log_oom();

iovec.iov_base = s->buffer;

iovec.iov_len = s->buffer_size - 1; /* Leave room for trailing NUL we add later */

n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC);

if (n < 0) {

if (errno == EINTR || errno == EAGAIN)

return 0;

return log_error_errno(errno, "recvmsg() failed: %m");

}

CMSG_FOREACH(cmsg, &msghdr) {

if (cmsg->cmsg_level == SOL_SOCKET &&

cmsg->cmsg_type == SCM_CREDENTIALS &&

cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred)))

ucred = (struct ucred*) CMSG_DATA(cmsg);

else if (cmsg->cmsg_level == SOL_SOCKET &&

cmsg->cmsg_type == SCM_SECURITY) {

label = (char*) CMSG_DATA(cmsg);

label_len = cmsg->cmsg_len - CMSG_LEN(0);

} else if (cmsg->cmsg_level == SOL_SOCKET &&

cmsg->cmsg_type == SO_TIMESTAMP &&

cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval)))

tv = (struct timeval*) CMSG_DATA(cmsg);

else if (cmsg->cmsg_level == SOL_SOCKET &&

cmsg->cmsg_type == SCM_RIGHTS) {

fds = (int*) CMSG_DATA(cmsg);

n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int);

}

}

/* And a trailing NUL, just in case */

s->buffer[n] = 0;

if (fd == s->syslog_fd) {

if (n > 0 && n_fds == 0)

server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len);

else if (n_fds > 0)

log_warning("Got file descriptors via syslog socket. Ignoring.");

} else if (fd == s->native_fd) {

if (n > 0 && n_fds == 0)

server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len);

else if (n == 0 && n_fds == 1)

server_process_native_file(s, fds[0], ucred, tv, label, label_len);

else if (n_fds > 0)

log_warning("Got too many file descriptors via native socket. Ignoring.");

} else {

assert(fd == s->audit_fd);

if (n > 0 && n_fds == 0)

server_process_audit_message(s, s->buffer, n, ucred, &sa, msghdr.msg_namelen);

else if (n_fds > 0)

log_warning("Got file descriptors via audit socket. Ignoring.");

}

close_many(fds, n_fds);

return 0;

}

static int dispatch_sigusr1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {

Server *s = userdata;

assert(s);

log_info("Received request to flush runtime journal from PID %"PRIu32, si->ssi_pid);

server_flush_to_var(s);

server_sync(s);

server_vacuum(s);

touch("/run/systemd/journal/flushed");

return 0;

}

static int dispatch_sigusr2(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {

Server *s = userdata;

assert(s);

log_info("Received request to rotate journal from PID %"PRIu32, si->ssi_pid);

server_rotate(s);

server_vacuum(s);

return 0;

}

static int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) {

Server *s = userdata;

assert(s);

log_received_signal(LOG_INFO, si);

sd_event_exit(s->event, 0);

return 0;

}

static int setup_signals(Server *s) {

sigset_t mask;

int r;

assert(s);

assert_se(sigemptyset(&mask) == 0);

sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1);

assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);

r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s);

if (r < 0)

return r;

r = sd_event_add_signal(s->event, &s->sigusr2_event_source, SIGUSR2, dispatch_sigusr2, s);

if (r < 0)

return r;

r = sd_event_add_signal(s->event, &s->sigterm_event_source, SIGTERM, dispatch_sigterm, s);

if (r < 0)

return r;

r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s);

if (r < 0)

return r;

return 0;

}

static int server_parse_proc_cmdline(Server *s) {

_cleanup_free_ char *line = NULL;

const char *w, *state;

size_t l;

int r;

r = proc_cmdline(&line);

if (r < 0) {

log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m");

return 0;

}

FOREACH_WORD_QUOTED(w, l, line, state) {

_cleanup_free_ char *word;

word = strndup(w, l);

if (!word)

return -ENOMEM;

if (startswith(word, "systemd.journald.forward_to_syslog=")) {

r = parse_boolean(word + 35);

if (r < 0)

log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35);

else

s->forward_to_syslog = r;

} else if (startswith(word, "systemd.journald.forward_to_kmsg=")) {

r = parse_boolean(word + 33);

if (r < 0)

log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33);

else

s->forward_to_kmsg = r;

} else if (startswith(word, "systemd.journald.forward_to_console=")) {

r = parse_boolean(word + 36);

if (r < 0)

log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36);

else

s->forward_to_console = r;

} else if (startswith(word, "systemd.journald.forward_to_wall=")) {

r = parse_boolean(word + 33);

if (r < 0)

log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33);

else

s->forward_to_wall = r;

} else if (startswith(word, "systemd.journald"))

log_warning("Invalid systemd.journald parameter. Ignoring.");

}

/* do not warn about state here, since probably systemd already did */

return 0;

}

static int server_parse_config_file(Server *s) {

assert(s);

return config_parse_many("/etc/systemd/journald.conf",

CONF_DIRS_NULSTR("systemd/journald.conf"),

"Journal\0",

config_item_perf_lookup, journald_gperf_lookup,

false, s);

}

static int server_dispatch_sync(sd_event_source *es, usec_t t, void *userdata) {

Server *s = userdata;

assert(s);

server_sync(s);

return 0;

}

int server_schedule_sync(Server *s, int priority) {