Merge pull request #34392 from poettering/format-util-split

tweaks to networkd sysctl logging

catalog/systemd.catalog.in

@@ -788,18 +788,22 @@ Defined-By: systemd
 Support: %SUPPORT_URL%
 Documentation: man:systemd-tpm2-setup.service(8)
 
-An authorization failure occurred while attempting to enroll a Storage Root Key (SRK) on the Trusted Platform
-Module (TPM). Most likely this means that a PIN/Password (authValue) has been set on the Owner hierarchy of
-the TPM.
+An authorization failure occurred while attempting to enroll a Storage Root Key
+(SRK) on the Trusted Platform Module (TPM). Most likely this means that a
+PIN/Password (authValue) has been set on the Owner hierarchy of the TPM.
 
-Automatic SRK enrollment on TPMs in such scenarios is not supported. In order to unset the PIN/password
-protection on the owner hierarchy issue a command like the following: 'tpm2_changeauth -c o -p <OLDPW> ""'.
+Automatic SRK enrollment on TPMs in such scenarios is not supported. In order
+to unset the PIN/password protection on the owner hierarchy issue a command
+like the following: 'tpm2_changeauth -c o -p <OLDPW> ""'.
 
 -- 9cf56b8baf9546cf9478783a8de42113
-Subject: A foreign process changed a sysctl we manage
+Subject: A foreign process changed a sysctl systemd-networkd manages
 Defined-By: systemd
 Support: %SUPPORT_URL%
 
-A sysctl handle under /proc/sys/net, which is managed by systemd-networkd, has been changed by another process.
-The event is raised only if the written value differs from the current one.
-The program name, the written value, the previous value, and the value initially set by networkd have been logged.
+The sysctl configuration setting @SYSCTL@, which is managed by
+systemd-networkd, has been changed by another, unrelated process
+("@OBJECT_COMM@", PID @OBJECT_PID@). This represents a conflict of ownership
+and will likely result in problems later on.
+
+Value changed to "@NEWVALUE@", which should be "@OURVALUE@".

src/basic/format-ifname.c

@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "format-ifname.h"
+#include "string-util.h"
+
+assert_cc(STRLEN("%") + DECIMAL_STR_MAX(int) <= IF_NAMESIZE);
+
+int format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]) {
+        if (ifindex <= 0)
+                return -EINVAL;
+
+        if (if_indextoname(ifindex, buf))
+                return 0;
+
+        if (!FLAGS_SET(flag, FORMAT_IFNAME_IFINDEX))
+                return -errno;
+
+        if (FLAGS_SET(flag, FORMAT_IFNAME_IFINDEX_WITH_PERCENT))
+                assert_se(snprintf_ok(buf, IF_NAMESIZE, "%%%d", ifindex));
+        else
+                assert_se(snprintf_ok(buf, IF_NAMESIZE, "%d", ifindex));
+
+        return 0;
+}
+
+int format_ifname_full_alloc(int ifindex, FormatIfnameFlag flag, char **ret) {
+        char buf[IF_NAMESIZE];
+        int r;
+
+        assert(ret);
+
+        r = format_ifname_full(ifindex, flag, buf);
+        if (r < 0)
+                return r;
+
+        return strdup_to(ret, buf);
+}

src/basic/format-ifname.h

@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <net/if.h>
+
+typedef enum {
+        FORMAT_IFNAME_IFINDEX              = 1 << 0,
+        FORMAT_IFNAME_IFINDEX_WITH_PERCENT = (1 << 1) | FORMAT_IFNAME_IFINDEX,
+} FormatIfnameFlag;
+
+int format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]);
+int format_ifname_full_alloc(int ifindex, FormatIfnameFlag flag, char **ret);
+
+static inline int format_ifname(int ifindex, char buf[static IF_NAMESIZE]) {
+        return format_ifname_full(ifindex, 0, buf);
+}
+static inline int format_ifname_alloc(int ifindex, char **ret) {
+        return format_ifname_full_alloc(ifindex, 0, ret);
+}
+
+static inline char* _format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]) {
+        (void) format_ifname_full(ifindex, flag, buf);
+        return buf;
+}
+
+#define FORMAT_IFNAME_FULL(index, flag) _format_ifname_full(index, flag, (char[IF_NAMESIZE]){})
+#define FORMAT_IFNAME(index) _format_ifname_full(index, 0, (char[IF_NAMESIZE]){})

src/basic/format-util.c

@@ -5,38 +5,6 @@
 #include "stdio-util.h"
 #include "strxcpyx.h"
 
-assert_cc(STRLEN("%") + DECIMAL_STR_MAX(int) <= IF_NAMESIZE);
-int format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]) {
-        if (ifindex <= 0)
-                return -EINVAL;
-
-        if (if_indextoname(ifindex, buf))
-                return 0;
-
-        if (!FLAGS_SET(flag, FORMAT_IFNAME_IFINDEX))
-                return -errno;
-
-        if (FLAGS_SET(flag, FORMAT_IFNAME_IFINDEX_WITH_PERCENT))
-                assert(snprintf_ok(buf, IF_NAMESIZE, "%%%d", ifindex));
-        else
-                assert(snprintf_ok(buf, IF_NAMESIZE, "%d", ifindex));
-
-        return 0;
-}
-
-int format_ifname_full_alloc(int ifindex, FormatIfnameFlag flag, char **ret) {
-        char buf[IF_NAMESIZE];
-        int r;
-
-        assert(ret);
-
-        r = format_ifname_full(ifindex, flag, buf);
-        if (r < 0)
-                return r;
-
-        return strdup_to(ret, buf);
-}
-
 char* format_bytes_full(char *buf, size_t l, uint64_t t, FormatBytesFlag flag) {
         typedef struct {
                 const char *suffix;

src/basic/format-util.h

@@ -2,7 +2,6 @@
 #pragma once
 
 #include <inttypes.h>
-#include <net/if.h>
 #include <stdbool.h>
 
 #include "cgroup-util.h"
@@ -66,29 +65,6 @@ assert_cc(sizeof(gid_t) == sizeof(uint32_t));
 #  error Unknown ino_t size
 #endif
 
-typedef enum {
-        FORMAT_IFNAME_IFINDEX              = 1 << 0,
-        FORMAT_IFNAME_IFINDEX_WITH_PERCENT = (1 << 1) | FORMAT_IFNAME_IFINDEX,
-} FormatIfnameFlag;
-
-int format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]);
-int format_ifname_full_alloc(int ifindex, FormatIfnameFlag flag, char **ret);
-
-static inline int format_ifname(int ifindex, char buf[static IF_NAMESIZE]) {
-        return format_ifname_full(ifindex, 0, buf);
-}
-static inline int format_ifname_alloc(int ifindex, char **ret) {
-        return format_ifname_full_alloc(ifindex, 0, ret);
-}
-
-static inline char* _format_ifname_full(int ifindex, FormatIfnameFlag flag, char buf[static IF_NAMESIZE]) {
-        (void) format_ifname_full(ifindex, flag, buf);
-        return buf;
-}
-
-#define FORMAT_IFNAME_FULL(index, flag) _format_ifname_full(index, flag, (char[IF_NAMESIZE]){})
-#define FORMAT_IFNAME(index) _format_ifname_full(index, 0, (char[IF_NAMESIZE]){})
-
 typedef enum {
         FORMAT_BYTES_USE_IEC     = 1 << 0,
         FORMAT_BYTES_BELOW_POINT = 1 << 1,

src/basic/meson.build

@@ -33,6 +33,7 @@ basic_sources = files(
         'fd-util.c',
         'fileio.c',
         'filesystems.c',
+        'format-ifname.c',
         'format-util.c',
         'fs-util.c',
         'gcrypt-util.c',

src/basic/socket-util.c

@@ -21,7 +21,7 @@
 #include "escape.h"
 #include "fd-util.h"
 #include "fileio.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "io-util.h"
 #include "log.h"
 #include "memory-util.h"

src/libsystemd-network/network-common.c

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "env-util.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "network-common.h"
 #include "socket-util.h"
 #include "unaligned.h"

src/machine/machinectl.c

@@ -32,6 +32,7 @@
 #include "edit-util.h"
 #include "env-util.h"
 #include "fd-util.h"
+#include "format-ifname.h"
 #include "format-table.h"
 #include "hostname-util.h"
 #include "import-util.h"

src/network/networkctl-dump-util.c

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-#include "format-util.h"
+#include "format-ifname.h"
 #include "in-addr-util.h"
 #include "local-addresses.h"
 #include "networkctl-dump-util.h"

src/network/networkctl-misc.c

@@ -5,7 +5,7 @@
 #include "bus-error.h"
 #include "bus-locator.h"
 #include "fd-util.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "netlink-util.h"
 #include "networkctl.h"
 #include "networkctl-misc.h"

src/network/networkd-link.c

@@ -24,7 +24,7 @@
 #include "event-util.h"
 #include "fd-util.h"
 #include "fileio.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "fs-util.h"
 #include "glyph-util.h"
 #include "logarithm.h"

src/network/networkd-sysctl.c

@@ -9,6 +9,7 @@
 #include "af-list.h"
 #include "cgroup-util.h"
 #include "fd-util.h"
+#include "format-util.h"
 #include "missing_network.h"
 #include "networkd-link.h"
 #include "networkd-lldp-tx.h"
@@ -72,14 +73,14 @@ static int sysctl_event_handler(void *ctx, void *data, size_t data_sz) {
         if (!strneq(value, we->newvalue, sizeof(we->newvalue)))
                 log_struct(LOG_WARNING,
                            "MESSAGE_ID=" SD_MESSAGE_SYSCTL_CHANGED_STR,
-                           "OBJECT_PID=%d", we->pid,
+                           "OBJECT_PID=" PID_FMT, we->pid,
                            "OBJECT_COMM=%s", we->comm,
-                           "SYSCTL=/proc/sys/%s", we->path,
+                           "SYSCTL=%s", path,
                            "OLDVALUE=%s", we->current,
                            "NEWVALUE=%s", we->newvalue,
                            "OURVALUE=%s", value,
-                           LOG_MESSAGE("Foreign process '%s[%d]' changed sysctl '/proc/sys/%s' from '%s' to '%s', conflicting with our setting to '%s'",
-                                       we->comm, we->pid, we->path, we->current, we->newvalue, value));
+                           LOG_MESSAGE("Foreign process '%s[" PID_FMT "]' changed sysctl '%s' from '%s' to '%s', conflicting with our setting to '%s'.",
+                                       we->comm, we->pid, path, we->current, we->newvalue, value));
 
         return 0;
 }

src/network/wait-online/link.c

@@ -3,7 +3,7 @@
 #include "sd-network.h"
 
 #include "alloc-util.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "hashmap.h"
 #include "link.h"
 #include "manager.h"

src/nsresourced/nsresourcework.c

@@ -3,6 +3,7 @@
 #include <fcntl.h>
 #include <linux/nsfs.h>
 #include <linux/veth.h>
+#include <net/if.h>
 #include <sys/eventfd.h>
 #include <sys/stat.h>
 #include <sys/wait.h>

src/resolve/resolvectl.c

@@ -20,8 +20,8 @@
 #include "dns-domain.h"
 #include "errno-list.h"
 #include "escape.h"
+#include "format-ifname.h"
 #include "format-table.h"
-#include "format-util.h"
 #include "gcrypt-util.h"
 #include "hostname-util.h"
 #include "json-util.h"

src/resolve/resolved-dns-cache.c

@@ -5,7 +5,7 @@
 #include "af-list.h"
 #include "alloc-util.h"
 #include "dns-domain.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "resolved-dns-answer.h"
 #include "resolved-dns-cache.h"
 #include "resolved-dns-packet.h"

src/shared/format-table.c

@@ -10,6 +10,7 @@
 #include "devnum-util.h"
 #include "fd-util.h"
 #include "fileio.h"
+#include "format-ifname.h"
 #include "format-table.h"
 #include "format-util.h"
 #include "fs-util.h"

src/test/test-nss-hosts.c

@@ -9,7 +9,7 @@
 #include "dlfcn-util.h"
 #include "env-util.h"
 #include "errno-list.h"
-#include "format-util.h"
+#include "format-ifname.h"
 #include "hexdecoct.h"
 #include "hostname-util.h"
 #include "in-addr-util.h"