85ff86275

Denis Vlasenko

2007-10-19

FAILED Duration: 22s

Subject

mkswap: selinux support by KaiGai Kohei

No binary (build failed)

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

(log yok)

util-linux/mkswap.c+44 -1

@@ -8,6 +8,48 @@

	#include "libbb.h"

+	#if ENABLE_SELINUX
+	static void mkswap_selinux_setcontext(int fd, const char *path)
+	{
+	struct stat stbuf;
+
+	if (!is_selinux_enabled())
+	return;
+
+	if (fstat(fd, &stbuf) < 0)
+	bb_perror_msg_and_die("fstat failed");
+	if (S_ISREG(stbuf.st_mode)) {
+	security_context_t newcon;
+	security_context_t oldcon = NULL;
+	context_t context;
+
+	if (fgetfilecon_raw(fd, &oldcon) < 0) {
+	if (errno != ENODATA)
+	goto error;
+	if (matchpathcon(path, stbuf.st_mode, &oldcon) < 0)
+	goto error;
+	}
+	context = context_new(oldcon);
+	if (!context \|\| context_type_set(context, "swapfile_t"))
+	goto error;
+	newcon = context_str(context);
+	if (!newcon)
+	goto error;
+	if (strcmp(oldcon, newcon) != 0 && fsetfilecon_raw(fd, newcon) < 0)
+	goto error;
+	if (ENABLE_FEATURE_CLEAN_UP) {
+	context_free(context);
+	freecon(oldcon);
+	}
+	}
+	return;
+	error:
+	bb_perror_msg_and_die("SELinux relabeling failed");
+	}
+	#else
+	#define mkswap_selinux_setcontext(fd, path) ((void)0)
+	#endif
+
	int mkswap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
	int mkswap_main(int argc, char **argv)
	{
@@ -26,6 +68,7 @@ int mkswap_main(int argc, char **argv)
	pagesize = getpagesize();
	printf("Setting up swapspace version 1, size = %"OFF_FMT"d bytes\n",
	len - pagesize);
+	mkswap_selinux_setcontext(fd, argv[1]);

	// Make a header.

@@ -38,7 +81,7 @@ int mkswap_main(int argc, char **argv)

	xlseek(fd, 1024, SEEK_SET);
	xwrite(fd, hdr, sizeof(hdr));
-	xlseek(fd, pagesize-10, SEEK_SET);
+	xlseek(fd, pagesize - 10, SEEK_SET);
	xwrite(fd, "SWAPSPACE2", 10);
	fsync(fd);