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dmeventd_thin: handling of internal command

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This commit is contained in:
Zdenek Kabelac 2017-01-18 09:56:15 +01:00
parent d80f9a107f
commit eca964b554
1 changed files with 16 additions and 0 deletions
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16
daemons/dmeventd/plugins/lvm2/dmeventd_lvm.c
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@ -121,6 +121,7 @@ int dmeventd_lvm2_run(const char *cmdline)
int dmeventd_lvm2_command(struct dm_pool *mem, char *buffer, size_t size,
const char *cmd, const char *device)
{
static char _internal_prefix[] = "_dmeventd_";
char *vg = NULL, *lv = NULL, *layer;
int r;
@ -135,6 +136,21 @@ int dmeventd_lvm2_command(struct dm_pool *mem, char *buffer, size_t size,
(layer = strstr(lv, "_mlog")))
*layer = '\0';
if (!strncmp(cmd, _internal_prefix, sizeof(_internal_prefix) - 1)) {
dmeventd_lvm2_lock();
/* output of internal command passed via env var */
if (!dmeventd_lvm2_run(cmd))
cmd = NULL;
else if ((cmd = getenv(cmd)))
cmd = dm_pool_strdup(mem, cmd); /* copy with lock */
dmeventd_lvm2_unlock();
if (!cmd) {
log_error("Unable to find configured command.");
return 0;
}
}
r = dm_snprintf(buffer, size, "%s %s/%s", cmd, vg, lv);
dm_pool_free(mem, vg);