mirror of
https://gitlab.com/procps-ng/procps.git
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sysctl: Support systemd glob patterns
systemd-sysctl handles glob patterns along with overrides and exceptions. Now the procps sysctl does it too. The return value for sysctl is consistently either 0 or 1. Added tests to check sysctl functions. References: procps-ng/procps#191 Signed-off-by: Craig Small <csmall@dropbear.xyz>
This commit is contained in:
Craig Small
parent
8c23dfdcd4
commit
6389deca5b
1
NEWS
1
NEWS
@ -11,6 +11,7 @@ procps-ng-NEXT
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* ps: Add PSS and USS fields issue #112
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* ps: Add two new autogroup fields
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* slabtop: Don't combine d and o options issue #160
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* sysctl: Add support for systemd glob patterns issue #191
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* sysctl: Check resolved path to be under /proc/sys issue #179
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* top: added LOGID similar to 3.3.13 ps LUID
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* top: added EXE identical to 3.3.17 ps EXE
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519
sysctl.c
519
sysctl.c
@ -17,6 +17,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Part of this code comes from systemd, especially sysctl.c
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* Changelog:
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* v1.01:
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* - added -p <preload> to preload values from a file
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@ -40,6 +41,7 @@
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <ctype.h>
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#include "c.h"
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#include "fileutils.h"
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@ -63,12 +65,34 @@ static bool PrintName;
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static bool PrintNewline;
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static bool IgnoreError;
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static bool Quiet;
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static bool DryRun;
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static char *pattern;
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#define LINELEN 4096
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static char *iobuf;
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static size_t iolen = LINELEN;
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typedef struct SysctlSetting {
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char *key;
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char *path;
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char *value;
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bool ignore_failure;
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bool glob_exclude;
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struct SysctlSetting *next;
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} SysctlSetting;
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typedef struct SettingList {
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struct SysctlSetting *head;
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struct SysctlSetting *tail;
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} SettingList;
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#define GLOB_CHARS "*?["
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static inline bool string_is_glob(const char *p)
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{
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return !!strpbrk(p, GLOB_CHARS);
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}
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/* Function prototypes. */
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static int pattern_match(const char *string, const char *pat);
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static int DisplayAll(const char *restrict const path);
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@ -115,6 +139,81 @@ static void slashdot(char *restrict p, char old, char new)
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}
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}
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static void setting_free(SysctlSetting *s) {
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if (!s)
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return;
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free(s->key);
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free(s->path);
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free(s->value);
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free(s);
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}
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static SysctlSetting *setting_new(
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const char *key,
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const char *value,
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bool ignore_failure,
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bool glob_exclude) {
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SysctlSetting *s = NULL;
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char *path = NULL;
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int proc_len;
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proc_len = strlen(PROC_PATH);
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/* used to open the file */
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path = xmalloc(strlen(key) + proc_len + 2);
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strcpy(path, PROC_PATH);
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if (key[0] == '-')
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strcat(path + proc_len, key+1);
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else
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strcat(path + proc_len, key);
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/* change . to / */
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slashdot(path + proc_len, '.', '/');
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s = xmalloc(sizeof(SysctlSetting));
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*s = (SysctlSetting) {
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.key = strdup(key),
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.path = path,
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.value = value? strdup(value): NULL,
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.ignore_failure = ignore_failure,
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.glob_exclude = glob_exclude,
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.next = NULL,
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};
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return s;
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}
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static void settinglist_add(SettingList *l, SysctlSetting *s) {
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SysctlSetting *old_tail;
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if (!l)
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return;
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if (l->head == NULL)
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l->head = s;
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if (l->tail != NULL) {
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old_tail = l->tail;
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old_tail->next = s;
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}
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l->tail = s;
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}
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static SysctlSetting *settinglist_findpath(const SettingList *l, const char *path) {
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SysctlSetting *node;
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for (node=l->head; node != NULL; node = node->next) {
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if (strcmp(node->path, path) == 0)
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return node;
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}
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return NULL;
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}
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/* Function prototypes. */
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static int pattern_match(const char *string, const char *pat);
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static int DisplayAll(const char *restrict const path);
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/*
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* Display the usage format
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*/
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@ -130,6 +229,7 @@ static void __attribute__ ((__noreturn__))
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fputs(_(" -A alias of -a\n"), out);
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fputs(_(" -X alias of -a\n"), out);
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fputs(_(" --deprecated include deprecated parameters to listing\n"), out);
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fputs(_(" --dry-run Print the key and values but do not write\n"), out);
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fputs(_(" -b, --binary print value without new line\n"), out);
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fputs(_(" -e, --ignore ignore unknown variables errors\n"), out);
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fputs(_(" -N, --names print variable names without values\n"), out);
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@ -152,6 +252,39 @@ static void __attribute__ ((__noreturn__))
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exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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/*
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* Strip left/leading side of a string
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*/
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static char *lstrip(char *line)
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{
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char *start;
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if (!line || !*line)
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return line;
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start = line;
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while(isspace(*start)) start++;
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return start;
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}
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/*
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* Strip right/trailing side of a string
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* by placing a \0
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*/
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static void rstrip(char *line)
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{
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char *end;
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if (!line || !*line)
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return;
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end = line + strlen(line) - 1;
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while(end > line && isspace(*end)) end--;
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end[1] = '\0';
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}
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/*
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* Strip the leading and trailing spaces from a string
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*/
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@ -181,7 +314,7 @@ static char *StripLeadingAndTrailingSpaces(char *oneline)
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*/
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static int ReadSetting(const char *restrict const name)
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{
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int rc = 0;
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int rc = EXIT_SUCCESS;
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char *restrict tmpname;
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char *restrict outname;
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ssize_t rlen;
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@ -213,7 +346,7 @@ static int ReadSetting(const char *restrict const name)
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if (stat(tmpname, &ts) < 0) {
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if (!IgnoreError) {
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xwarn(_("cannot stat %s"), tmpname);
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rc = -1;
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rc = EXIT_FAILURE;
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}
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goto out;
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}
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@ -235,7 +368,7 @@ static int ReadSetting(const char *restrict const name)
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}
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if (pattern && !pattern_match(outname, pattern)) {
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rc = 0;
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rc = EXIT_SUCCESS;
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goto out;
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}
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@ -251,19 +384,19 @@ static int ReadSetting(const char *restrict const name)
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case ENOENT:
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if (!IgnoreError) {
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xwarnx(_("\"%s\" is an unknown key"), outname);
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rc = -1;
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rc = EXIT_FAILURE;
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}
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break;
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case EACCES:
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xwarnx(_("permission denied on key '%s'"), outname);
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rc = -1;
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rc = EXIT_FAILURE;
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break;
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case EIO: /* Ignore stable_secret below /proc/sys/net/ipv6/conf */
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rc = -1;
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rc = EXIT_FAILURE;
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break;
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default:
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xwarn(_("reading key \"%s\""), outname);
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rc = -1;
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rc = EXIT_FAILURE;
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break;
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}
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} else {
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@ -299,7 +432,7 @@ static int ReadSetting(const char *restrict const name)
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case EACCES:
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xwarnx(_("permission denied on key '%s'"),
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outname);
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rc = -1;
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rc = EXIT_FAILURE;
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break;
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case EISDIR: {
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size_t len;
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@ -311,11 +444,11 @@ static int ReadSetting(const char *restrict const name)
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goto out;
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}
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case EIO: /* Ignore stable_secret below /proc/sys/net/ipv6/conf */
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rc = -1;
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rc = EXIT_FAILURE;
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break;
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default:
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xwarnx(_("reading key \"%s\""), outname);
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rc = -1;
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rc = EXIT_FAILURE;
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case 0:
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break;
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}
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@ -343,7 +476,7 @@ static int is_deprecated(char *filename)
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*/
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static int DisplayAll(const char *restrict const path)
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{
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int rc = 0;
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int rc = EXIT_SUCCESS;
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int rc2;
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DIR *restrict dp;
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struct dirent *restrict de;
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@ -353,7 +486,7 @@ static int DisplayAll(const char *restrict const path)
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if (!dp) {
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xwarnx(_("unable to open directory \"%s\""), path);
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rc = -1;
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rc = EXIT_FAILURE;
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} else {
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readdir(dp); /* skip . */
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readdir(dp); /* skip .. */
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@ -389,70 +522,25 @@ static int DisplayAll(const char *restrict const path)
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/*
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* Write a sysctl setting
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*/
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static int WriteSetting(const char *setting)
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{
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int rc = 0;
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const char *name = setting;
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const char *value;
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const char *equals;
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char *tmpname;
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char *outname;
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char *last_dot;
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bool ignore_failure;
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static int WriteSetting(
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const char *key,
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const char *path,
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const char *value,
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const bool ignore_failure) {
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FILE *fp;
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int rc = EXIT_SUCCESS;
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FILE *fp;
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struct stat ts;
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if (!name)
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/* probably don't want to display this err */
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return 0;
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if (!key || !path)
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return rc;
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equals = strchr(setting, '=');
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if (!equals) {
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xwarnx(_("\"%s\" must be of the form name=value"),
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setting);
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return -1;
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}
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/* point to the value in name=value */
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value = equals + 1;
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if (!*name || name == equals) {
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xwarnx(_("malformed setting \"%s\""), setting);
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return -2;
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}
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ignore_failure = name[0] == '-';
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if (ignore_failure)
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name++;
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/* used to open the file */
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tmpname = xmalloc(equals - name + 1 + strlen(PROC_PATH));
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strcpy(tmpname, PROC_PATH);
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strncat(tmpname, name, (int) (equals - name));
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tmpname[equals - name + strlen(PROC_PATH)] = 0;
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/* change . to / */
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slashdot(tmpname + strlen(PROC_PATH), '.', '/');
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/* used to display the output */
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outname = xmalloc(equals - name + 1);
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strncpy(outname, name, (int) (equals - name));
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outname[equals - name] = 0;
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/* change / to . */
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slashdot(outname, '/', '.');
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last_dot = strrchr(outname, '.');
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if (last_dot != NULL && is_deprecated(last_dot + 1)) {
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xwarnx(_("%s is deprecated, value not set"), outname);
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goto out;
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}
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if (stat(tmpname, &ts) < 0) {
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if (stat(path, &ts) < 0) {
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if (!IgnoreError) {
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xwarn(_("cannot stat %s"), tmpname);
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rc = -1;
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xwarn(_("cannot stat %s"), path);
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rc = EXIT_FAILURE;
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}
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goto out;
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return rc;
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}
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if (!is_proc_path(tmpname)) {
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@ -461,63 +549,161 @@ static int WriteSetting(const char *setting)
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}
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if ((ts.st_mode & S_IWUSR) == 0) {
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xwarn(_("setting key \"%s\""), outname);
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goto out;
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xwarn(_("setting key \"%s\""), key);
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return rc;
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}
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if (S_ISDIR(ts.st_mode)) {
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xwarn(_("setting key \"%s\""), outname);
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goto out;
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xwarn(_("setting key \"%s\""), key);
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return rc;
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}
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fp = fprocopen(tmpname, "w");
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if (!fp) {
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switch (errno) {
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case ENOENT:
|
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if (!IgnoreError) {
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xwarnx(_("\"%s\" is an unknown key%s"), outname, (ignore_failure?_(", ignoring"):""));
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if (!DryRun) {
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if ((fp = fprocopen(path, "w")) == NULL) {
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switch (errno) {
|
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case ENOENT:
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if (!IgnoreError) {
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xwarnx(_("\"%s\" is an unknown key%s"),
|
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key, (ignore_failure?_(", ignoring"):""));
|
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if (!ignore_failure)
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rc = -1;
|
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rc = EXIT_FAILURE;
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}
|
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break;
|
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case EPERM:
|
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case EROFS:
|
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case EACCES:
|
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xwarnx(_("permission denied on key \"%s\"%s"), outname, (ignore_failure?_(", ignoring"):""));
|
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break;
|
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default:
|
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xwarn(_("setting key \"%s\"%s"), outname, (ignore_failure?_(", ignoring"):""));
|
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break;
|
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}
|
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if (!ignore_failure && errno != ENOENT)
|
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rc = -1;
|
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} else {
|
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rc = fprintf(fp, "%s\n", value);
|
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if (0 < rc)
|
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rc = 0;
|
||||
if (close_stream(fp) != 0)
|
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xwarn(_("setting key \"%s\""), outname);
|
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else if (rc == 0 && !Quiet) {
|
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if (NameOnly) {
|
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fprintf(stdout, "%s\n", outname);
|
||||
} else {
|
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if (PrintName) {
|
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fprintf(stdout, "%s = %s\n",
|
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outname, value);
|
||||
} else {
|
||||
if (PrintNewline)
|
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fprintf(stdout, "%s\n", value);
|
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else
|
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fprintf(stdout, "%s", value);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
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out:
|
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free(tmpname);
|
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free(outname);
|
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return rc;
|
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case EPERM:
|
||||
case EROFS:
|
||||
case EACCES:
|
||||
xwarnx(_("permission denied on key \"%s\"%s"),
|
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key, (ignore_failure?_(", ignoring"):""));
|
||||
break;
|
||||
default:
|
||||
xwarn(_("setting key \"%s\"%s"),
|
||||
key, (ignore_failure?_(", ignoring"):""));
|
||||
break;
|
||||
}
|
||||
if (!ignore_failure && errno != ENOENT)
|
||||
rc = EXIT_FAILURE;
|
||||
} else {
|
||||
if (0 < fprintf(fp, "%s\n", value))
|
||||
rc = EXIT_SUCCESS;
|
||||
if (close_stream(fp) != 0) {
|
||||
xwarn(_("setting key \"%s\""), path);
|
||||
return rc;
|
||||
}
|
||||
}
|
||||
}
|
||||
if ((rc == EXIT_SUCCESS && !Quiet) || DryRun) {
|
||||
if (NameOnly) {
|
||||
printf("%s\n", value);
|
||||
} else {
|
||||
if (PrintName) {
|
||||
printf("%s = %s\n", path, value);
|
||||
} else {
|
||||
if (PrintNewline)
|
||||
printf("%s\n", value);
|
||||
else
|
||||
printf("%s", value);
|
||||
}
|
||||
}
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
|
||||
/*
|
||||
* parse each configuration line, there are multiple ways of specifying
|
||||
* a key/value here:
|
||||
*
|
||||
* key = value simple setting
|
||||
* -key = value ignore errors
|
||||
* key.pattern.*.with.glob = value set keys that match glob
|
||||
* -key.pattern.exclude.with.glob dont set this value
|
||||
* key.pattern.override.with.glob = value set this glob match to value
|
||||
*
|
||||
*/
|
||||
|
||||
static SysctlSetting *parse_setting_line(
|
||||
const char *path,
|
||||
const int linenum,
|
||||
char *line)
|
||||
{
|
||||
SysctlSetting *s;
|
||||
char *key;
|
||||
char *value;
|
||||
bool glob_exclude = FALSE;
|
||||
bool ignore_failure = FALSE;
|
||||
|
||||
key = lstrip(line);
|
||||
if (strlen(key) < 2)
|
||||
return NULL;
|
||||
|
||||
/* skip over comments */
|
||||
if (key[0] == '#' || key[0] == ';')
|
||||
return NULL;
|
||||
|
||||
if (pattern && !pattern_match(key, pattern))
|
||||
return NULL;
|
||||
|
||||
value = strchr(key, '=');
|
||||
if (value == NULL) {
|
||||
if (key[0] == '-') {
|
||||
glob_exclude = TRUE;
|
||||
key++;
|
||||
value = NULL;
|
||||
rstrip(key);
|
||||
} else {
|
||||
xwarnx(_("%s(%d): invalid syntax, continuing..."),
|
||||
path, linenum);
|
||||
return NULL;
|
||||
}
|
||||
} else {
|
||||
value[0]='\0';
|
||||
if (key[0] == '-') {
|
||||
ignore_failure = TRUE;
|
||||
key++;
|
||||
}
|
||||
value++; // skip over =
|
||||
value=lstrip(value);
|
||||
rstrip(value);
|
||||
rstrip(key);
|
||||
}
|
||||
return setting_new(key, value, ignore_failure, glob_exclude);
|
||||
}
|
||||
|
||||
/* Go through the setting list, expand and sort out
|
||||
* setting globs and actually write the settings out
|
||||
*/
|
||||
static int write_setting_list(const SettingList *sl)
|
||||
{
|
||||
SysctlSetting *node;
|
||||
int rc = EXIT_SUCCESS;
|
||||
|
||||
for (node=sl->head; node != NULL; node=node->next) {
|
||||
if (node->glob_exclude)
|
||||
continue;
|
||||
|
||||
if (string_is_glob(node->path)) {
|
||||
char *gl_path;
|
||||
glob_t globbuf;
|
||||
int i;
|
||||
|
||||
if (glob(node->path, 0, NULL, &globbuf) != 0)
|
||||
continue;
|
||||
|
||||
for(i=0; i < globbuf.gl_pathc; i++) {
|
||||
if (settinglist_findpath(sl, globbuf.gl_pathv[i]))
|
||||
continue; // override or exclude
|
||||
|
||||
rc |= WriteSetting(node->key, globbuf.gl_pathv[i], node->value,
|
||||
node->ignore_failure);
|
||||
}
|
||||
} else {
|
||||
rc |= WriteSetting(node->key, node->path, node->value,
|
||||
node->ignore_failure);
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int pattern_match(const char *string, const char *pat)
|
||||
@ -538,12 +724,12 @@ static int pattern_match(const char *string, const char *pat)
|
||||
* Preload the sysctl's from the conf file. We parse the file and then
|
||||
* reform it (strip out whitespace).
|
||||
*/
|
||||
static int Preload(const char *restrict const filename)
|
||||
static int Preload(SettingList *setlist, const char *restrict const filename)
|
||||
{
|
||||
FILE *fp;
|
||||
char *t;
|
||||
int n = 0;
|
||||
int rc = 0;
|
||||
int rc = EXIT_SUCCESS;
|
||||
ssize_t rlen;
|
||||
char *name, *value;
|
||||
glob_t globbuf;
|
||||
@ -572,62 +758,26 @@ static int Preload(const char *restrict const filename)
|
||||
? stdin : fopen(globbuf.gl_pathv[j], "r");
|
||||
if (!fp) {
|
||||
xwarn(_("cannot open \"%s\""), globbuf.gl_pathv[j]);
|
||||
rc = -1;
|
||||
goto out;
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
|
||||
while ((rlen = getline(&iobuf, &iolen, fp)) > 0) {
|
||||
size_t offset;
|
||||
SysctlSetting *setting;
|
||||
|
||||
n++;
|
||||
|
||||
if (rlen < 2)
|
||||
continue;
|
||||
|
||||
t = StripLeadingAndTrailingSpaces(iobuf);
|
||||
if (strlen(t) < 2)
|
||||
continue;
|
||||
|
||||
if (*t == '#' || *t == ';')
|
||||
continue;
|
||||
|
||||
name = strtok(t, "=");
|
||||
if (!name || !*name) {
|
||||
xwarnx(_("%s(%d): invalid syntax, continuing..."),
|
||||
globbuf.gl_pathv[j], n);
|
||||
continue;
|
||||
}
|
||||
|
||||
StripLeadingAndTrailingSpaces(name);
|
||||
|
||||
if (pattern && !pattern_match(name, pattern))
|
||||
continue;
|
||||
|
||||
offset = strlen(name);
|
||||
memmove(&iobuf[0], name, offset);
|
||||
iobuf[offset++] = '=';
|
||||
|
||||
value = strtok(NULL, "\n\r");
|
||||
if (!value || !*value) {
|
||||
xwarnx(_("%s(%d): invalid syntax, continuing..."),
|
||||
globbuf.gl_pathv[j], n);
|
||||
continue;
|
||||
}
|
||||
|
||||
while ((*value == ' ' || *value == '\t') && *value != 0)
|
||||
value++;
|
||||
|
||||
/* should NameOnly affect this? */
|
||||
memmove(&iobuf[offset], value, strlen(value));
|
||||
offset += strlen(value);
|
||||
iobuf[offset] = '\0';
|
||||
|
||||
rc |= WriteSetting(iobuf);
|
||||
if ( (setting = parse_setting_line(globbuf.gl_pathv[j], n, iobuf))
|
||||
== NULL)
|
||||
continue;
|
||||
settinglist_add(setlist, setting);
|
||||
}
|
||||
|
||||
fclose(fp);
|
||||
}
|
||||
out:
|
||||
return rc;
|
||||
}
|
||||
|
||||
@ -643,7 +793,7 @@ static int sortpairs(const void *A, const void *B)
|
||||
return strcmp(a->name, b->name);
|
||||
}
|
||||
|
||||
static int PreloadSystem(void)
|
||||
static int PreloadSystem(SettingList *setlist)
|
||||
{
|
||||
unsigned di, i;
|
||||
const char *dirs[] = {
|
||||
@ -655,7 +805,7 @@ static int PreloadSystem(void)
|
||||
};
|
||||
struct pair **cfgs = NULL;
|
||||
unsigned ncfgs = 0;
|
||||
int rc = 0;
|
||||
int rc = EXIT_SUCCESS;
|
||||
struct stat ts;
|
||||
enum { nprealloc = 16 };
|
||||
|
||||
@ -713,14 +863,14 @@ static int PreloadSystem(void)
|
||||
for (i = 0; i < ncfgs; ++i) {
|
||||
if (!Quiet)
|
||||
printf(_("* Applying %s ...\n"), cfgs[i]->value);
|
||||
rc |= Preload(cfgs[i]->value);
|
||||
rc |= Preload(setlist, cfgs[i]->value);
|
||||
}
|
||||
|
||||
|
||||
if (stat(DEFAULT_PRELOAD, &ts) == 0 && S_ISREG(ts.st_mode)) {
|
||||
if (!Quiet)
|
||||
printf(_("* Applying %s ...\n"), DEFAULT_PRELOAD);
|
||||
rc |= Preload(DEFAULT_PRELOAD);
|
||||
rc |= Preload(setlist, DEFAULT_PRELOAD);
|
||||
}
|
||||
|
||||
/* cleaning */
|
||||
@ -742,15 +892,19 @@ int main(int argc, char *argv[])
|
||||
bool preloadfileOpt = false;
|
||||
int ReturnCode = 0;
|
||||
int c;
|
||||
int rc;
|
||||
const char *preloadfile = NULL;
|
||||
SettingList *setlist;
|
||||
|
||||
enum {
|
||||
DEPRECATED_OPTION = CHAR_MAX + 1,
|
||||
SYSTEM_OPTION
|
||||
SYSTEM_OPTION,
|
||||
DRYRUN_OPTION
|
||||
};
|
||||
static const struct option longopts[] = {
|
||||
{"all", no_argument, NULL, 'a'},
|
||||
{"deprecated", no_argument, NULL, DEPRECATED_OPTION},
|
||||
{"dry-run", no_argument, NULL, DRYRUN_OPTION},
|
||||
{"binary", no_argument, NULL, 'b'},
|
||||
{"ignore", no_argument, NULL, 'e'},
|
||||
{"names", no_argument, NULL, 'N'},
|
||||
@ -778,6 +932,10 @@ int main(int argc, char *argv[])
|
||||
IgnoreError = false;
|
||||
Quiet = false;
|
||||
IgnoreDeprecated = true;
|
||||
DryRun = false;
|
||||
setlist = xmalloc(sizeof(SettingList));
|
||||
setlist->head = NULL;
|
||||
setlist->tail = NULL;
|
||||
|
||||
if (argc < 2)
|
||||
Usage(stderr);
|
||||
@ -830,7 +988,12 @@ int main(int argc, char *argv[])
|
||||
break;
|
||||
case SYSTEM_OPTION:
|
||||
IgnoreError = true;
|
||||
return PreloadSystem();
|
||||
rc |= PreloadSystem(setlist);
|
||||
rc |= write_setting_list(setlist);
|
||||
return rc;
|
||||
case DRYRUN_OPTION:
|
||||
DryRun = true;
|
||||
break;
|
||||
case 'r':
|
||||
pattern = xstrdup(optarg);
|
||||
break;
|
||||
@ -858,15 +1021,16 @@ int main(int argc, char *argv[])
|
||||
int ret = EXIT_SUCCESS, i;
|
||||
if (!preloadfile) {
|
||||
if (!argc) {
|
||||
ret |= Preload(DEFAULT_PRELOAD);
|
||||
ret |= Preload(setlist, DEFAULT_PRELOAD);
|
||||
}
|
||||
} else {
|
||||
/* This happens when -pfile option is
|
||||
* used without space. */
|
||||
ret |= Preload(preloadfile);
|
||||
ret |= Preload(setlist, preloadfile);
|
||||
}
|
||||
for (i = 0; i < argc; i++)
|
||||
ret |= Preload(argv[i]);
|
||||
ret |= Preload(setlist, argv[i]);
|
||||
ret |= write_setting_list(setlist);
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -880,9 +1044,14 @@ int main(int argc, char *argv[])
|
||||
program_invocation_short_name);
|
||||
|
||||
for ( ; *argv; argv++) {
|
||||
if (WriteMode || strchr(*argv, '='))
|
||||
ReturnCode += WriteSetting(*argv);
|
||||
else
|
||||
if (WriteMode || strchr(*argv, '=')) {
|
||||
SysctlSetting *s;
|
||||
if ( (s = parse_setting_line("command line", 0, *argv)) != NULL)
|
||||
ReturnCode |= WriteSetting(s->key, s->path, s->value,
|
||||
s->ignore_failure);
|
||||
else
|
||||
ReturnCode |= EXIT_FAILURE;
|
||||
} else
|
||||
ReturnCode += ReadSetting(*argv);
|
||||
}
|
||||
return ReturnCode;
|
||||
|
||||
@ -136,6 +136,15 @@ proc expect_table_dsc { test match_header match_item } {
|
||||
#}
|
||||
}
|
||||
|
||||
proc expect_spawn_retval { test retval } {
|
||||
foreach {pid spawnid os_error_flag value} [wait] break
|
||||
|
||||
if {$value == $retval} {
|
||||
return
|
||||
}
|
||||
fail "$test (exit value)"
|
||||
}
|
||||
|
||||
proc make_pipeproc { } {
|
||||
global pipeproc_pid pipeproc_spawnid topdir
|
||||
|
||||
|
||||
29
testsuite/sysctl.test/sysctl_write.exp
Normal file
29
testsuite/sysctl.test/sysctl_write.exp
Normal file
@ -0,0 +1,29 @@
|
||||
|
||||
set sysctl ${topdir}sysctl
|
||||
|
||||
set test "sysctl write from command line"
|
||||
spawn $sysctl --dry-run kernel.hostname=procps-test
|
||||
expect_pass "$test" "/proc/sys/kernel/hostname = procps-test"
|
||||
|
||||
set test "sysctl write from configuration file"
|
||||
spawn $sysctl --dry-run -f ${topdir}testsuite/sysctl_glob_test.conf
|
||||
expect_pass "$test" "/proc/sys/fs/protected_fifos = 2\\s+/proc/sys/fs/protected_symlinks = 2\\s+/proc/sys/fs/protected_hardlinks = 1"
|
||||
|
||||
set hostname_file "/proc/sys/kernel/hostname"
|
||||
if {[file exists ${hostname_file}]} {
|
||||
if {[file writable ${hostname_file}]} {
|
||||
unsupported "sysctl write: hostname file is writable"
|
||||
} else {
|
||||
set test "sysctl write unwritable file"
|
||||
spawn $sysctl -q kernel.hostname=procpstest
|
||||
expect_pass "$test" "sysctl: permission denied on key \"kernel.hostname\"\\s*$"
|
||||
expect_spawn_retval "$test" 1
|
||||
|
||||
set test "sysctl write unwritable file ignored"
|
||||
spawn $sysctl -q -- -kernel.hostname=procpstest
|
||||
expect_pass "$test" "sysctl: permission denied on key \"kernel.hostname\", ignoring\\s*$"
|
||||
expect_spawn_retval "$test" 0
|
||||
}
|
||||
} else {
|
||||
unsupported "sysctl write: hostname file doe not exist"
|
||||
}
|
||||
6
testsuite/sysctl_glob_test.conf
Normal file
6
testsuite/sysctl_glob_test.conf
Normal file
@ -0,0 +1,6 @@
|
||||
#
|
||||
# Test configuration for for glob in sysctl
|
||||
#
|
||||
fs.protected_* = 2
|
||||
fs.protected_hardlinks = 1
|
||||
-fs.protected_regular
|
||||
Loading…
Reference in New Issue
Block a user