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207
0001-main-create-new-file-when-writing-pidfile.patch
Normal file
207
0001-main-create-new-file-when-writing-pidfile.patch
Normal file
@ -0,0 +1,207 @@
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From f00fed20092b6a42283f29c6ee1f58244d74b545 Mon Sep 17 00:00:00 2001
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From: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Thu, 6 Aug 2020 09:31:11 +0200
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Subject: [PATCH] main: create new file when writing pidfile
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When writing the pidfile, open the file with the O_CREAT|O_EXCL flags
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to avoid following a symlink and writing the PID to an unexpected file,
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when chronyd still has the root privileges.
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The Linux open(2) man page warns about O_EXCL not working as expected on
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NFS versions before 3 and Linux versions before 2.6. Saving pidfiles on
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a distributed filesystem like NFS is not generally expected, but if
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there is a reason to do that, these old kernel and NFS versions are not
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considered to be supported for saving files by chronyd.
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This is a minimal backport specific to this issue of the following
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commits:
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- commit 2fc8edacb810 ("use PATH_MAX")
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- commit f4c6a00b2a11 ("logging: call exit() in LOG_Message()")
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- commit 7a4c396bba8f ("util: add functions for common file operations")
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- commit e18903a6b563 ("switch to new util file functions")
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Reported-by: Matthias Gerstner <mgerstner@suse.de>
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---
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logging.c | 1 +
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main.c | 10 ++-----
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sysincl.h | 1 +
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util.c | 95 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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util.h | 11 ++++++++
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5 files changed, 111 insertions(+), 7 deletions(-)
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diff --git a/logging.c b/logging.c
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index d2296e0..fd7f900 100644
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--- a/logging.c
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+++ b/logging.c
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@@ -171,6 +171,7 @@ void LOG_Message(LOG_Severity severity,
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system_log = 0;
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log_message(1, severity, buf);
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}
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+ exit(1);
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break;
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default:
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assert(0);
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diff --git a/main.c b/main.c
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index 6ccf32e..8edb2e1 100644
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--- a/main.c
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+++ b/main.c
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@@ -281,13 +281,9 @@ write_pidfile(void)
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if (!pidfile[0])
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return;
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- out = fopen(pidfile, "w");
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- if (!out) {
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- LOG_FATAL("Could not open %s : %s", pidfile, strerror(errno));
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- } else {
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- fprintf(out, "%d\n", (int)getpid());
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- fclose(out);
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- }
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+ out = UTI_OpenFile(NULL, pidfile, NULL, 'W', 0644);
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+ fprintf(out, "%d\n", (int)getpid());
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+ fclose(out);
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}
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/* ================================================== */
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diff --git a/sysincl.h b/sysincl.h
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index 296c5e6..873a3bd 100644
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--- a/sysincl.h
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+++ b/sysincl.h
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@@ -37,6 +37,7 @@
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#include <glob.h>
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#include <grp.h>
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#include <inttypes.h>
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+#include <limits.h>
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#include <math.h>
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#include <netinet/in.h>
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#include <pwd.h>
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diff --git a/util.c b/util.c
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index e7e3442..83b3b20 100644
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--- a/util.c
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+++ b/util.c
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@@ -1179,6 +1179,101 @@ UTI_CheckDirPermissions(const char *path, mode_t perm, uid_t uid, gid_t gid)
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/* ================================================== */
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+static int
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+join_path(const char *basedir, const char *name, const char *suffix,
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+ char *buffer, size_t length, LOG_Severity severity)
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+{
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+ const char *sep;
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+
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+ if (!basedir) {
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+ basedir = "";
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+ sep = "";
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+ } else {
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+ sep = "/";
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+ }
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+
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+ if (!suffix)
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+ suffix = "";
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+
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+ if (snprintf(buffer, length, "%s%s%s%s", basedir, sep, name, suffix) >= length) {
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+ LOG(severity, "File path %s%s%s%s too long", basedir, sep, name, suffix);
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+ return 0;
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+ }
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+
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+ return 1;
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+}
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+
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+/* ================================================== */
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+
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+FILE *
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+UTI_OpenFile(const char *basedir, const char *name, const char *suffix,
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+ char mode, mode_t perm)
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+{
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+ const char *file_mode;
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+ char path[PATH_MAX];
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+ LOG_Severity severity;
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+ int fd, flags;
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+ FILE *file;
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+
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+ severity = mode >= 'A' && mode <= 'Z' ? LOGS_FATAL : LOGS_ERR;
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+
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+ if (!join_path(basedir, name, suffix, path, sizeof (path), severity))
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+ return NULL;
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+
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+ switch (mode) {
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+ case 'r':
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+ case 'R':
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+ flags = O_RDONLY;
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+ file_mode = "r";
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+ if (severity != LOGS_FATAL)
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+ severity = LOGS_DEBUG;
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+ break;
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+ case 'w':
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+ case 'W':
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+ flags = O_WRONLY | O_CREAT | O_EXCL;
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+ file_mode = "w";
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+ break;
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+ case 'a':
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+ case 'A':
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+ flags = O_WRONLY | O_CREAT | O_APPEND;
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+ file_mode = "a";
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+ break;
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+ default:
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+ assert(0);
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+ return NULL;
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+ }
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+
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+try_again:
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+ fd = open(path, flags, perm);
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+ if (fd < 0) {
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+ if (errno == EEXIST) {
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+ if (unlink(path) < 0) {
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+ LOG(severity, "Could not remove %s : %s", path, strerror(errno));
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+ return NULL;
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+ }
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+ DEBUG_LOG("Removed %s", path);
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+ goto try_again;
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+ }
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+ LOG(severity, "Could not open %s : %s", path, strerror(errno));
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+ return NULL;
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+ }
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+
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+ UTI_FdSetCloexec(fd);
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+
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+ file = fdopen(fd, file_mode);
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+ if (!file) {
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+ LOG(severity, "Could not open %s : %s", path, strerror(errno));
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+ close(fd);
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+ return NULL;
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+ }
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+
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+ DEBUG_LOG("Opened %s fd=%d mode=%c", path, fd, mode);
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+
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+ return file;
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+}
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+
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+/* ================================================== */
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+
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void
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UTI_DropRoot(uid_t uid, gid_t gid)
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{
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diff --git a/util.h b/util.h
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index e3d6767..a2481cc 100644
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--- a/util.h
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+++ b/util.h
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@@ -176,6 +176,17 @@ extern int UTI_CreateDirAndParents(const char *path, mode_t mode, uid_t uid, gid
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permissions and its uid/gid must match the specified values. */
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extern int UTI_CheckDirPermissions(const char *path, mode_t perm, uid_t uid, gid_t gid);
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+/* Open a file. The full path of the file is constructed from the basedir
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+ (may be NULL), '/' (if basedir is not NULL), name, and suffix (may be NULL).
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+ Created files have specified permissions (umasked). Returns NULL on error.
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+ The following modes are supported (if the mode is an uppercase character,
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+ errors are fatal):
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+ r/R - open an existing file for reading
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+ w/W - open a new file for writing (remove existing file)
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+ a/A - open an existing file for appending (create if does not exist) */
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+extern FILE *UTI_OpenFile(const char *basedir, const char *name, const char *suffix,
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+ char mode, mode_t perm);
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+
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/* Set process user/group IDs and drop supplementary groups */
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extern void UTI_DropRoot(uid_t uid, gid_t gid);
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--
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1.8.3.1
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Binary file not shown.
BIN
chrony-3.5.tar.gz
Normal file
BIN
chrony-3.5.tar.gz
Normal file
Binary file not shown.
25
chrony-packettest.patch
Normal file
25
chrony-packettest.patch
Normal file
@ -0,0 +1,25 @@
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commit 62d6aed6a64b887c9e3b7f03d9e0db1deaa2696a
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Author: Miroslav Lichvar <mlichvar@redhat.com>
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Date: Tue Jun 18 15:41:50 2019 +0200
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test: update processing of packet log
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Two new fields have been added to the packet log, which broke some
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of the simulation tests.
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diff --git a/test/simulation/test.common b/test/simulation/test.common
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index 951a794b..8ed6ad9e 100644
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--- a/test/simulation/test.common
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+++ b/test/simulation/test.common
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@@ -391,9 +391,9 @@ check_packet_port() {
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for i in $(seq 1 $(get_chronyd_nodes)); do
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test_message 3 0 "node $i:"
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- grep -E -q " $port [0-9]+\$" tmp/log.packets && \
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+ grep -E -q "^([0-9e.+-]+ ){5}$port " tmp/log.packets && \
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! grep -E "^[0-9e.+-]+ $i " tmp/log.packets | \
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- grep -E -q -v " $port [0-9]+\$" && \
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+ grep -E -q -v "^([0-9e.+-]+ ){5}$port " && \
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test_ok || test_bad
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[ $? -eq 0 ] || ret=1
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||||
done
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||||
@ -1,8 +1,8 @@
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diff -up chrony-3.1/examples/chronyd.service.service-helper chrony-3.1/examples/chronyd.service
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--- chrony-3.1/examples/chronyd.service.service-helper 2017-01-31 12:12:01.863772826 +0100
|
||||
+++ chrony-3.1/examples/chronyd.service 2017-01-31 12:12:30.371860064 +0100
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@@ -10,6 +10,7 @@ Type=forking
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PIDFile=/var/run/chrony/chronyd.pid
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diff -Nur chrony-3.5.bck/examples/chronyd.service chrony-3.5/examples/chronyd.service
|
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--- chrony-3.5.bck/examples/chronyd.service 2020-06-23 15:41:07.789042822 +0800
|
||||
+++ chrony-3.5/examples/chronyd.service 2020-06-23 15:42:09.489819150 +0800
|
||||
@@ -10,6 +10,7 @@
|
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PIDFile=/run/chrony/chronyd.pid
|
||||
EnvironmentFile=-/etc/sysconfig/chronyd
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ExecStart=/usr/sbin/chronyd $OPTIONS
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+ExecStartPost=/usr/libexec/chrony-helper update-daemon
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|
||||
58
chrony.spec
58
chrony.spec
@ -1,8 +1,8 @@
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||||
%global clknetsim_ver 774308
|
||||
%global clknetsim_ver 79ffe4
|
||||
|
||||
Name: chrony
|
||||
Version: 3.4
|
||||
Release: 2
|
||||
Version: 3.5
|
||||
Release: 4
|
||||
Summary: An NTP client/server
|
||||
License: GPLv2
|
||||
URL: https://chrony.tuxfamily.org
|
||||
@ -16,10 +16,11 @@ Source6: https://github.com/mlichvar/clknetsim/archive/%{clknetsim_ver}/clknet
|
||||
|
||||
#patch0 form fedora
|
||||
Patch0: chrony-service-helper.patch
|
||||
|
||||
Patch1: chrony-packettest.patch
|
||||
Patch2: 0001-main-create-new-file-when-writing-pidfile.patch
|
||||
BuildRequires: gcc gcc-c++ bison systemd libcap-devel libedit-devel nettle-devel pps-tools-devel libseccomp-devel
|
||||
|
||||
Requires: shadow-utils systemd timedatex
|
||||
Requires: shadow-utils systemd timedatex %{name}-help
|
||||
|
||||
%description
|
||||
chrony is a versatile implementation of the Network Time Protocol (NTP).
|
||||
@ -28,20 +29,13 @@ It can synchronise the system clock with NTP servers, reference clocks
|
||||
also operate as an NTPv4 (RFC 5905) server and peer to provide a time
|
||||
service to other computers in the network.
|
||||
|
||||
|
||||
%package docs
|
||||
Summary: Documentation files for chrony
|
||||
|
||||
%description docs
|
||||
The chrony-docs package contains documentation files.
|
||||
%package_help
|
||||
|
||||
%prep
|
||||
%autosetup -n %{name}-%{version} -p1
|
||||
|
||||
%setup -q -n %{name}-%{version} -a 6
|
||||
%autosetup -p1 -n %{name}-%{version} -a 6
|
||||
mv clknetsim-%{clknetsim_ver}* test/simulation/clknetsim
|
||||
|
||||
|
||||
%build
|
||||
%configure \
|
||||
--enable-debug --enable-ntp-signd --enable-scfilter --docdir=%{_docdir} \
|
||||
@ -87,7 +81,7 @@ install -d $RPM_BUILD_ROOT%{_localstatedir}/log/chrony
|
||||
touch $RPM_BUILD_ROOT%{_localstatedir}/lib/chrony/{drift,rtc}
|
||||
|
||||
%check
|
||||
%make_build -C test/simulation/clknetsim CLKNETSIM_RANDOM_SEED=16888
|
||||
%make_build -C test/simulation/clknetsim CLKNETSIM_RANDOM_SEED=24502
|
||||
make quickcheck
|
||||
|
||||
|
||||
@ -111,6 +105,7 @@ fi
|
||||
%systemd_postun_with_restart chronyd.service
|
||||
|
||||
%files
|
||||
%defattr(-,root,root)
|
||||
%license COPYING
|
||||
|
||||
%config(noreplace) %{_sysconfdir}/chrony.conf
|
||||
@ -133,11 +128,38 @@ fi
|
||||
%dir %attr(-,chrony,chrony) %{_localstatedir}/log/chrony
|
||||
|
||||
|
||||
%files docs
|
||||
%files help
|
||||
%defattr(644,root,root)
|
||||
%doc FAQ NEWS README
|
||||
%{_mandir}/man[158]/%{name}*.[158]*
|
||||
|
||||
%changelog
|
||||
* Sat Sep 14 2019 hufeng <solar.hu@huawei.com> - 3.4.2
|
||||
-Create chrony spec
|
||||
* Wed Dec 28 2022 chengyechun <chengyechun1@huawei.com> - 3.5-4
|
||||
- Type:bugfix
|
||||
- ID:NA
|
||||
- SUG:NA
|
||||
- DESC:update the patching mode
|
||||
|
||||
* Mon Nov 09 2020 quanhongfei <quanhongfei@huawei.com> - 3.5-3
|
||||
- Type:requirement
|
||||
- ID:NA
|
||||
- SUG:NA
|
||||
- DESC:add chrony-help depenfency for chrony
|
||||
|
||||
* Mon Sep 21 2020 yuboyun <yuboyun@huawei.com> - 3.5-2
|
||||
- Type:CVE
|
||||
- ID:CVE-2020-14367
|
||||
- SUG:NA
|
||||
- DESC:fix CVE-2020-14367
|
||||
|
||||
* Thu Aug 13 2020 gaihuiying <gaihuiying1@huawei.com> - 3.5-1
|
||||
- Type:requirement
|
||||
- ID:NA
|
||||
- SUG:NA
|
||||
- DESC:update chrony to 3.5
|
||||
|
||||
* Tue Dec 24 2019 openEuler Buildteam <buildteam@openeuler.org> - 3.4-3
|
||||
- rename docs subpackage as help subpackage
|
||||
|
||||
* Sat Sep 14 2019 hufeng <solar.hu@huawei.com> - 3.4-2
|
||||
- Create chrony spec
|
||||
|
||||
Binary file not shown.
BIN
clknetsim-79ffe4.tar.gz
Normal file
BIN
clknetsim-79ffe4.tar.gz
Normal file
Binary file not shown.
Loading…
x
Reference in New Issue
Block a user