This adds an additional format to kmod static-nodes, which writes
output as shell commands, e.g.:
mknod '/dev/btrfs-control' c 10 234
mknod '/dev/loop-control' c 10 237
mkdir -m 755 -p '/dev/net'
mknod '/dev/net/tun' c 10 200
Consumers of this format can simply pipe the output to a shell,
creating the necessary static nodes. This could be useful for an
initramfs which doesn't have systemd-tmpfiles but which still relies on
static node creation which recent udev will no longer handle.
---
tools/static-nodes.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/tools/static-nodes.c b/tools/static-nodes.c
index 0195390..2d68537 100644
--- a/tools/static-nodes.c
+++ b/tools/static-nodes.c
@@ -43,11 +43,13 @@ struct static_nodes_format {
static const struct static_nodes_format static_nodes_format_human;
static const struct static_nodes_format static_nodes_format_tmpfiles;
static const struct static_nodes_format static_nodes_format_devname;
+static const struct static_nodes_format static_nodes_format_shell;
static const struct static_nodes_format *static_nodes_formats[] = {
&static_nodes_format_human,
&static_nodes_format_tmpfiles,
&static_nodes_format_devname,
+ &static_nodes_format_shell,
};
static const char cmdopts_s[] = "o:f:h";
@@ -126,6 +128,28 @@ static const struct static_nodes_format
static_nodes_format_devname = {
.description = "the modules.devname format.",
};
+static int write_shell(FILE *out, char modname[], char devname[], char type,
unsigned int maj, unsigned int min)
+{
+ const char *dir = strrchr(devname, '/');
+
+ if (dir) {
+ if (fprintf(out, "mkdir -m 755 -p '/dev/%.*s'\n",
+ (int)(dir - devname), devname) < 0)
+ return EXIT_FAILURE;
+ }
+
+ if (fprintf(out, "mknod '/dev/%s' %c %u %u\n", devname, type, maj, min)
< 0)
+ return EXIT_FAILURE;
+
+ return EXIT_SUCCESS;
+}
+
+static const struct static_nodes_format static_nodes_format_shell = {
+ .name = "shell",
+ .write = write_shell,
+ .description = "mknod commands for consumption by a shell.",
+};
+
static void help(void)
{
size_t i;
--
1.8.4
--
To unsubscribe from this list: send the line "unsubscribe linux-modules" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
