#include "build.h"
#include "pager.h"
#include "logs-show.h"
+#include "strv.h"
+#include "journal-internal.h"
+#include "journal-def.h"
+#include "journal-verify.h"
+#include "journal-authenticate.h"
+#include "fsprg.h"
+
+#define DEFAULT_FSPRG_INTERVAL_USEC (15*USEC_PER_MINUTE)
static OutputMode arg_output = OUTPUT_SHORT;
static bool arg_follow = false;
static bool arg_no_pager = false;
static int arg_lines = -1;
static bool arg_no_tail = false;
-static bool arg_new_id128 = false;
static bool arg_quiet = false;
static bool arg_local = false;
+static bool arg_this_boot = false;
+static const char *arg_directory = NULL;
+static int arg_priorities = 0xFF;
+static const char *arg_verify_seed = NULL;
+
+static enum {
+ ACTION_SHOW,
+ ACTION_NEW_ID128,
+ ACTION_PRINT_HEADER,
+ ACTION_SETUP_KEYS,
+ ACTION_VERIFY
+} arg_action = ACTION_SHOW;
static int help(void) {
printf("%s [OPTIONS...] [MATCH]\n\n"
"Send control commands to or query the journal.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- " --no-pager Do not pipe output into a pager\n"
- " -a --all Show all fields, including long and unprintable\n"
- " -f --follow Follow journal\n"
- " -n --lines=INTEGER Journal entries to show\n"
- " --no-tail Show all lines, even in follow mode\n"
- " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
- " verbose, export, json, cat)\n"
- " -q --quiet Don't show privilege warning\n"
- " --new-id128 Generate a new 128 Bit id\n"
- " -l --local Only local entries\n",
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --no-pager Do not pipe output into a pager\n"
+ " -a --all Show all fields, including long and unprintable\n"
+ " -f --follow Follow journal\n"
+ " -n --lines=INTEGER Journal entries to show\n"
+ " --no-tail Show all lines, even in follow mode\n"
+ " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
+ " verbose, export, json, cat)\n"
+ " -q --quiet Don't show privilege warning\n"
+ " -l --local Only local entries\n"
+ " -b --this-boot Show data only from current boot\n"
+ " -D --directory=PATH Show journal files from directory\n"
+ " -p --priority=RANGE Show only messages within the specified priority range\n\n"
+ "Commands:\n"
+ " --new-id128 Generate a new 128 Bit ID\n"
+ " --header Show journal header information\n"
+ " --verify Verify journal file consistency\n"
+ " --verify-seed=SEED Specify FSPRG seed for verification\n"
+ " --setup-keys Generate new FSPRG key and seed\n",
program_invocation_short_name);
return 0;
ARG_VERSION = 0x100,
ARG_NO_PAGER,
ARG_NO_TAIL,
- ARG_NEW_ID128
+ ARG_NEW_ID128,
+ ARG_HEADER,
+ ARG_SETUP_KEYS,
+ ARG_VERIFY,
+ ARG_VERIFY_SEED
};
static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version" , no_argument, NULL, ARG_VERSION },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
- { "follow", no_argument, NULL, 'f' },
- { "output", required_argument, NULL, 'o' },
- { "all", no_argument, NULL, 'a' },
- { "lines", required_argument, NULL, 'n' },
- { "no-tail", no_argument, NULL, ARG_NO_TAIL },
- { "new-id128", no_argument, NULL, ARG_NEW_ID128 },
- { "quiet", no_argument, NULL, 'q' },
- { "local", no_argument, NULL, 'l' },
- { NULL, 0, NULL, 0 }
+ { "help", no_argument, NULL, 'h' },
+ { "version" , no_argument, NULL, ARG_VERSION },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "follow", no_argument, NULL, 'f' },
+ { "output", required_argument, NULL, 'o' },
+ { "all", no_argument, NULL, 'a' },
+ { "lines", required_argument, NULL, 'n' },
+ { "no-tail", no_argument, NULL, ARG_NO_TAIL },
+ { "new-id128", no_argument, NULL, ARG_NEW_ID128 },
+ { "quiet", no_argument, NULL, 'q' },
+ { "local", no_argument, NULL, 'l' },
+ { "this-boot", no_argument, NULL, 'b' },
+ { "directory", required_argument, NULL, 'D' },
+ { "header", no_argument, NULL, ARG_HEADER },
+ { "priority", no_argument, NULL, 'p' },
+ { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
+ { "verify", no_argument, NULL, ARG_VERIFY },
+ { "verify-seed", required_argument, NULL, ARG_VERIFY_SEED },
+ { NULL, 0, NULL, 0 }
};
int c, r;
assert(argc >= 0);
assert(argv);
- while ((c = getopt_long(argc, argv, "hfo:an:ql", options, NULL)) >= 0) {
+ while ((c = getopt_long(argc, argv, "hfo:an:qlbD:p:", options, NULL)) >= 0) {
switch (c) {
break;
case ARG_NEW_ID128:
- arg_new_id128 = true;
+ arg_action = ACTION_NEW_ID128;
break;
case 'q':
arg_local = true;
break;
+ case 'b':
+ arg_this_boot = true;
+ break;
+
+ case 'D':
+ arg_directory = optarg;
+ break;
+
+ case ARG_HEADER:
+ arg_action = ACTION_PRINT_HEADER;
+ break;
+
+ case ARG_SETUP_KEYS:
+ arg_action = ACTION_SETUP_KEYS;
+ break;
+
+ case ARG_VERIFY:
+ arg_action = ACTION_VERIFY;
+ break;
+
+ case ARG_VERIFY_SEED:
+ arg_action = ACTION_VERIFY;
+ arg_verify_seed = optarg;
+ break;
+
+ case 'p': {
+ const char *dots;
+
+ dots = strstr(optarg, "..");
+ if (dots) {
+ char *a;
+ int from, to, i;
+
+ /* a range */
+ a = strndup(optarg, dots - optarg);
+ if (!a)
+ return log_oom();
+
+ from = log_level_from_string(a);
+ to = log_level_from_string(dots + 2);
+ free(a);
+
+ if (from < 0 || to < 0) {
+ log_error("Failed to parse log level range %s", optarg);
+ return -EINVAL;
+ }
+
+ arg_priorities = 0;
+
+ if (from < to) {
+ for (i = from; i <= to; i++)
+ arg_priorities |= 1 << i;
+ } else {
+ for (i = to; i <= from; i++)
+ arg_priorities |= 1 << i;
+ }
+
+ } else {
+ int p, i;
+
+ p = log_level_from_string(optarg);
+ if (p < 0) {
+ log_error("Unknown log level %s", optarg);
+ return -EINVAL;
+ }
+
+ arg_priorities = 0;
+
+ for (i = 0; i <= p; i++)
+ arg_priorities |= 1 << i;
+ }
+
+ break;
+ }
+
case '?':
return -EINVAL;
return 1;
}
+static bool on_tty(void) {
+ static int t = -1;
+
+ /* Note that this is invoked relatively early, before we start
+ * the pager. That means the value we return reflects whether
+ * we originally were started on a tty, not if we currently
+ * are. But this is intended, since we want colour and so on
+ * when run in our own pager. */
+
+ if (_unlikely_(t < 0))
+ t = isatty(STDOUT_FILENO) > 0;
+
+ return t;
+}
+
static int generate_new_id128(void) {
sd_id128_t id;
int r;
return 0;
}
+static int add_matches(sd_journal *j, char **args) {
+ char **i;
+ int r;
+
+ assert(j);
+
+ STRV_FOREACH(i, args) {
+
+ if (streq(*i, "+"))
+ r = sd_journal_add_disjunction(j);
+ else if (path_is_absolute(*i)) {
+ char *p, *t = NULL;
+ const char *path;
+ struct stat st;
+
+ p = canonicalize_file_name(*i);
+ path = p ? p : *i;
+
+ if (stat(path, &st) < 0) {
+ free(p);
+ log_error("Couldn't stat file: %m");
+ return -errno;
+ }
+
+ if (S_ISREG(st.st_mode) && (0111 & st.st_mode))
+ t = strappend("_EXE=", path);
+ else if (S_ISCHR(st.st_mode))
+ asprintf(&t, "_KERNEL_DEVICE=c%u:%u", major(st.st_rdev), minor(st.st_rdev));
+ else if (S_ISBLK(st.st_mode))
+ asprintf(&t, "_KERNEL_DEVICE=b%u:%u", major(st.st_rdev), minor(st.st_rdev));
+ else {
+ free(p);
+ log_error("File is not a device node, regular file or is not executable: %s", *i);
+ return -EINVAL;
+ }
+
+ free(p);
+
+ if (!t)
+ return log_oom();
+
+ r = sd_journal_add_match(j, t, 0);
+ free(t);
+ } else
+ r = sd_journal_add_match(j, *i, 0);
+
+ if (r < 0) {
+ log_error("Failed to add match '%s': %s", *i, strerror(-r));
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int add_this_boot(sd_journal *j) {
+ char match[9+32+1] = "_BOOT_ID=";
+ sd_id128_t boot_id;
+ int r;
+
+ assert(j);
+
+ if (!arg_this_boot)
+ return 0;
+
+ r = sd_id128_get_boot(&boot_id);
+ if (r < 0) {
+ log_error("Failed to get boot id: %s", strerror(-r));
+ return r;
+ }
+
+ sd_id128_to_string(boot_id, match + 9);
+ r = sd_journal_add_match(j, match, strlen(match));
+ if (r < 0) {
+ log_error("Failed to add match: %s", strerror(-r));
+ return r;
+ }
+
+ return 0;
+}
+
+static int add_priorities(sd_journal *j) {
+ char match[] = "PRIORITY=0";
+ int i, r;
+
+ assert(j);
+
+ if (arg_priorities == 0xFF)
+ return 0;
+
+ for (i = LOG_EMERG; i <= LOG_DEBUG; i++)
+ if (arg_priorities & (1 << i)) {
+ match[sizeof(match)-2] = '0' + i;
+
+ log_info("adding match %s", match);
+
+ r = sd_journal_add_match(j, match, strlen(match));
+ if (r < 0) {
+ log_error("Failed to add match: %s", strerror(-r));
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int setup_keys(void) {
+#ifdef HAVE_GCRYPT
+ size_t mpk_size, seed_size, state_size, i;
+ uint8_t *mpk, *seed, *state;
+ ssize_t l;
+ int fd = -1, r;
+ sd_id128_t machine, boot;
+ char *p = NULL, *k = NULL;
+ struct FSPRGHeader h;
+ uint64_t n, interval;
+
+ r = sd_id128_get_machine(&machine);
+ if (r < 0) {
+ log_error("Failed to get machine ID: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_id128_get_boot(&boot);
+ if (r < 0) {
+ log_error("Failed to get boot ID: %s", strerror(-r));
+ return r;
+ }
+
+ if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fsprg",
+ SD_ID128_FORMAT_VAL(machine)) < 0)
+ return log_oom();
+
+ if (access(p, F_OK) >= 0) {
+ log_error("Evolving key file %s exists already.", p);
+ r = -EEXIST;
+ goto finish;
+ }
+
+ if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fsprg.tmp.XXXXXX",
+ SD_ID128_FORMAT_VAL(machine)) < 0) {
+ r = log_oom();
+ goto finish;
+ }
+
+ mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR);
+ mpk = alloca(mpk_size);
+
+ seed_size = FSPRG_RECOMMENDED_SEEDLEN;
+ seed = alloca(seed_size);
+
+ state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR);
+ state = alloca(state_size);
+
+ fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0) {
+ log_error("Failed to open /dev/random: %m");
+ r = -errno;
+ goto finish;
+ }
+
+ log_info("Generating seed...");
+ l = loop_read(fd, seed, seed_size, true);
+ if (l < 0 || (size_t) l != seed_size) {
+ log_error("Failed to read random seed: %s", strerror(EIO));
+ r = -EIO;
+ goto finish;
+ }
+
+ log_info("Generating key pair...");
+ FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR);
+
+ log_info("Generating evolving key...");
+ FSPRG_GenState0(state, mpk, seed, seed_size);
+
+ interval = DEFAULT_FSPRG_INTERVAL_USEC;
+ n = now(CLOCK_REALTIME);
+ n /= interval;
+
+ close_nointr_nofail(fd);
+ fd = mkostemp(k, O_WRONLY|O_CLOEXEC|O_NOCTTY);
+ if (fd < 0) {
+ log_error("Failed to open %s: %m", k);
+ r = -errno;
+ goto finish;
+ }
+
+ zero(h);
+ memcpy(h.signature, "KSHHRHLP", 8);
+ h.machine_id = machine;
+ h.boot_id = boot;
+ h.header_size = htole64(sizeof(h));
+ h.fsprg_start_usec = htole64(n * interval);
+ h.fsprg_interval_usec = htole64(interval);
+ h.secpar = htole16(FSPRG_RECOMMENDED_SECPAR);
+ h.state_size = htole64(state_size);
+
+ l = loop_write(fd, &h, sizeof(h), false);
+ if (l < 0 || (size_t) l != sizeof(h)) {
+ log_error("Failed to write header: %s", strerror(EIO));
+ r = -EIO;
+ goto finish;
+ }
+
+ l = loop_write(fd, state, state_size, false);
+ if (l < 0 || (size_t) l != state_size) {
+ log_error("Failed to write state: %s", strerror(EIO));
+ r = -EIO;
+ goto finish;
+ }
+
+ if (link(k, p) < 0) {
+ log_error("Failed to link file: %m");
+ r = -errno;
+ goto finish;
+ }
+
+ if (isatty(STDOUT_FILENO)) {
+ fprintf(stderr,
+ "\n"
+ "The new key pair has been generated. The evolving key has been written to the\n"
+ "following file. It will be used to protect local journal files. This file\n"
+ "should be kept secret. It should not be used on multiple hosts.\n"
+ "\n"
+ "\t%s\n"
+ "\n"
+ "Please write down the following " ANSI_HIGHLIGHT_ON "secret" ANSI_HIGHLIGHT_OFF " seed value. It should not be stored\n"
+ "locally on disk, and may be used to verify journal files from this host.\n"
+ "\n\t" ANSI_HIGHLIGHT_RED_ON, p);
+ fflush(stderr);
+ }
+ for (i = 0; i < seed_size; i++) {
+ if (i > 0 && i % 3 == 0)
+ putchar('-');
+ printf("%02x", ((uint8_t*) seed)[i]);
+ }
+
+ printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) interval);
+
+ if (isatty(STDOUT_FILENO))
+ fputs(ANSI_HIGHLIGHT_OFF "\n", stderr);
+
+ r = 0;
+
+finish:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ if (k) {
+ unlink(k);
+ free(k);
+ }
+
+ free(p);
+
+ return r;
+#else
+ log_error("Forward-secure journal verification not available.");
+#endif
+}
+
+static int verify(sd_journal *j) {
+ int r = 0;
+ Iterator i;
+ JournalFile *f;
+
+ assert(j);
+
+ HASHMAP_FOREACH(f, j->files, i) {
+ int k;
+
+ if (!arg_verify_seed && journal_file_fsprg_enabled(f))
+ log_warning("Journal file %s has authentication enabled but verification seed has not been passed using --verify-seed=.", f->path);
+
+ k = journal_file_verify(f, arg_verify_seed);
+ if (k < 0) {
+ log_warning("FAIL: %s (%s)", f->path, strerror(-k));
+ r = -r;
+ } else
+ log_info("PASS: %s", f->path);
+ }
+
+ return r;
+}
+
int main(int argc, char *argv[]) {
- int r, i, fd;
+ int r;
sd_journal *j = NULL;
unsigned line = 0;
bool need_seek = false;
- struct stat st;
+ sd_id128_t previous_boot_id;
+ bool previous_boot_id_valid = false;
+ bool have_pager;
log_parse_environment();
log_open();
if (r <= 0)
goto finish;
- if (arg_new_id128) {
+ if (arg_action == ACTION_NEW_ID128) {
r = generate_new_id128();
goto finish;
}
-#ifdef HAVE_ACL
- if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0)
- log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this message off.");
-#endif
+ if (arg_action == ACTION_SETUP_KEYS) {
+ r = setup_keys();
+ goto finish;
+ }
+
+ if (arg_directory)
+ r = sd_journal_open_directory(&j, arg_directory, 0);
+ else
+ r = sd_journal_open(&j, arg_local ? SD_JOURNAL_LOCAL_ONLY : 0);
- r = sd_journal_open(&j, arg_local ? SD_JOURNAL_LOCAL_ONLY : 0);
if (r < 0) {
log_error("Failed to open journal: %s", strerror(-r));
goto finish;
}
- for (i = optind; i < argc; i++) {
- if (path_is_absolute(argv[i])) {
- char *p = NULL;
- const char *path;
-
- p = canonicalize_file_name(argv[i]);
- path = p ? p : argv[i];
-
- if (stat(path, &st) < 0) {
- free(p);
- log_error("Couldn't stat file: %m");
- r = -errno;
- goto finish;
- }
-
- if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) {
- char *t;
+ if (arg_action == ACTION_VERIFY) {
+ r = verify(j);
+ goto finish;
+ }
- t = strappend("_EXE=", path);
- if (!t) {
- free(p);
- log_error("Out of memory");
- goto finish;
- }
+ if (arg_action == ACTION_PRINT_HEADER) {
+ journal_print_header(j);
+ r = 0;
+ goto finish;
+ }
- r = sd_journal_add_match(j, t, strlen(t));
- free(t);
- } else {
- free(p);
- log_error("File is not a regular file or is not executable: %s", argv[i]);
- goto finish;
- }
+#ifdef HAVE_ACL
+ if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0)
+ log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this message off.");
+#endif
- free(p);
- } else
- r = sd_journal_add_match(j, argv[i], strlen(argv[i]));
+ r = add_this_boot(j);
+ if (r < 0)
+ goto finish;
- if (r < 0) {
- log_error("Failed to add match: %s", strerror(-r));
- goto finish;
- }
- }
+ r = add_matches(j, argv + optind);
+ if (r < 0)
+ goto finish;
- fd = sd_journal_get_fd(j);
- if (fd < 0) {
- log_error("Failed to get wakeup fd: %s", strerror(-fd));
+ r = add_priorities(j);
+ if (r < 0)
goto finish;
- }
if (!arg_quiet) {
usec_t start, end;
goto finish;
}
- if (!arg_no_pager && !arg_follow) {
- columns();
- pager_open();
- }
+ on_tty();
+ have_pager = !arg_no_pager && !arg_follow && pager_open();
if (arg_output == OUTPUT_JSON) {
fputc('[', stdout);
for (;;) {
for (;;) {
+ sd_id128_t boot_id;
+ int flags =
+ arg_show_all * OUTPUT_SHOW_ALL |
+ have_pager * OUTPUT_FULL_WIDTH |
+ on_tty() * OUTPUT_COLOR;
+
if (need_seek) {
r = sd_journal_next(j);
if (r < 0) {
if (r == 0)
break;
+ r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
+ if (r >= 0) {
+ if (previous_boot_id_valid &&
+ !sd_id128_equal(boot_id, previous_boot_id))
+ printf(ANSI_HIGHLIGHT_ON "----- Reboot -----" ANSI_HIGHLIGHT_OFF "\n");
+
+ previous_boot_id = boot_id;
+ previous_boot_id_valid = true;
+ }
+
line ++;
- r = output_journal(j, arg_output, line, 0, arg_show_all);
+ r = output_journal(j, arg_output, line, 0, flags);
if (r < 0)
goto finish;
if (!arg_follow)
break;
- r = fd_wait_for_event(fd, POLLIN, (usec_t) -1);
- if (r < 0) {
- log_error("Couldn't wait for event: %s", strerror(-r));
- goto finish;
- }
-
- r = sd_journal_process(j);
+ r = sd_journal_wait(j, (uint64_t) -1);
if (r < 0) {
- log_error("Failed to process: %s", strerror(-r));
+ log_error("Couldn't wait for log event: %s", strerror(-r));
goto finish;
}
}
~ianmdlvl / elogind.git / blobdiff