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authorKay Sievers <kay@vrfy.org>2012-11-04 16:54:19 +0100
committerKay Sievers <kay@vrfy.org>2012-11-04 16:54:19 +0100
commit1022373284b7562431fb0a6dba45db8af089a0e3 (patch)
tree1c1bda16b739afbe20da98d03dad856df6b7ba4e
parentc1e5704657315b436c0409e8172c1fcb76adccad (diff)
kmod-setup: add conditional module loading callback
-rw-r--r--src/core/kmod-setup.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/src/core/kmod-setup.c b/src/core/kmod-setup.c
index ce8a8e7d38..383a6b22be 100644
--- a/src/core/kmod-setup.c
+++ b/src/core/kmod-setup.c
@@ -30,11 +30,17 @@
#include "kmod-setup.h"
-static const char * const kmod_table[] = {
- "autofs4", "/sys/class/misc/autofs",
- "ipv6", "/sys/module/ipv6",
- "efivarfs", "/sys/firmware/efi/efivars",
- "unix", "/proc/net/unix"
+typedef struct Kmodule {
+ const char *name;
+ const char *directory;
+ bool (*condition_fn)(void);
+} KModule;
+
+static const KModule kmod_table[] = {
+ { "autofs4", "/sys/class/misc/autofs", NULL } ,
+ { "ipv6", "/sys/module/ipv6", NULL },
+ { "efivarfs", "/sys/firmware/efi/efivars", NULL },
+ { "unix", "/proc/net/unix", NULL } ,
};
#pragma GCC diagnostic push
@@ -42,7 +48,8 @@ static const char * const kmod_table[] = {
static void systemd_kmod_log(void *data, int priority, const char *file, int line,
const char *fn, const char *format, va_list args)
{
- log_metav(priority, file, line, fn, format, args);
+ /* library logging is enabled at debug only */
+ log_metav(LOG_DEBUG, file, line, fn, format, args);
}
#pragma GCC diagnostic pop
@@ -53,13 +60,15 @@ int kmod_setup(void) {
int err;
for (i = 0; i < ELEMENTSOF(kmod_table); i += 2) {
+ if (kmod_table[i].condition_fn && !kmod_table[i].condition_fn())
+ continue;
- if (access(kmod_table[i+1], F_OK) >= 0)
+ if (access(kmod_table[i].directory, F_OK) >= 0)
continue;
log_debug("Your kernel apparently lacks built-in %s support. Might be a good idea to compile it in. "
"We'll now try to work around this by loading the module...",
- kmod_table[i]);
+ kmod_table[i].name);
if (!ctx) {
ctx = kmod_new(NULL, NULL);
@@ -69,13 +78,12 @@ int kmod_setup(void) {
}
kmod_set_log_fn(ctx, systemd_kmod_log, NULL);
-
kmod_load_resources(ctx);
}
- err = kmod_module_new_from_name(ctx, kmod_table[i], &mod);
+ err = kmod_module_new_from_name(ctx, kmod_table[i].name, &mod);
if (err < 0) {
- log_error("Failed to load module '%s'", kmod_table[i]);
+ log_error("Failed to lookup module '%s'", kmod_table[i].name);
continue;
}
@@ -85,7 +93,7 @@ int kmod_setup(void) {
else if (err == KMOD_PROBE_APPLY_BLACKLIST)
log_info("Module '%s' is blacklisted", kmod_module_get_name(mod));
else
- log_error("Failed to insert '%s'", kmod_module_get_name(mod));
+ log_error("Failed to insert module '%s'", kmod_module_get_name(mod));
kmod_module_unref(mod);
}