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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-10-19 21:49:48 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-10-19 21:49:48 +0000 |
| commit | 85ff862753be5b7b5d3855681f9234c131659b8a (patch) | |
| tree | 03f108c8ef00faa5df9ba37296eac3d518347ed8 /util-linux/mkswap.c | |
| parent | 1a7afb48daf054d8cc9d57e8a569a6ac90acdd7d (diff) | |
| download | busybox-w32-85ff862753be5b7b5d3855681f9234c131659b8a.tar.gz busybox-w32-85ff862753be5b7b5d3855681f9234c131659b8a.tar.bz2 busybox-w32-85ff862753be5b7b5d3855681f9234c131659b8a.zip | |
mkswap: selinux support by KaiGai Kohei <kaigai@ak.jp.nec.com>
Diffstat (limited to 'util-linux/mkswap.c')
| -rw-r--r-- | util-linux/mkswap.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/util-linux/mkswap.c b/util-linux/mkswap.c index af4cc10f7..8e1fbc384 100644 --- a/util-linux/mkswap.c +++ b/util-linux/mkswap.c | |||
| @@ -8,6 +8,48 @@ | |||
| 8 | 8 | ||
| 9 | #include "libbb.h" | 9 | #include "libbb.h" |
| 10 | 10 | ||
| 11 | #if ENABLE_SELINUX | ||
| 12 | static void mkswap_selinux_setcontext(int fd, const char *path) | ||
| 13 | { | ||
| 14 | struct stat stbuf; | ||
| 15 | |||
| 16 | if (!is_selinux_enabled()) | ||
| 17 | return; | ||
| 18 | |||
| 19 | if (fstat(fd, &stbuf) < 0) | ||
| 20 | bb_perror_msg_and_die("fstat failed"); | ||
| 21 | if (S_ISREG(stbuf.st_mode)) { | ||
| 22 | security_context_t newcon; | ||
| 23 | security_context_t oldcon = NULL; | ||
| 24 | context_t context; | ||
| 25 | |||
| 26 | if (fgetfilecon_raw(fd, &oldcon) < 0) { | ||
| 27 | if (errno != ENODATA) | ||
| 28 | goto error; | ||
| 29 | if (matchpathcon(path, stbuf.st_mode, &oldcon) < 0) | ||
| 30 | goto error; | ||
| 31 | } | ||
| 32 | context = context_new(oldcon); | ||
| 33 | if (!context || context_type_set(context, "swapfile_t")) | ||
| 34 | goto error; | ||
| 35 | newcon = context_str(context); | ||
| 36 | if (!newcon) | ||
| 37 | goto error; | ||
| 38 | if (strcmp(oldcon, newcon) != 0 && fsetfilecon_raw(fd, newcon) < 0) | ||
| 39 | goto error; | ||
| 40 | if (ENABLE_FEATURE_CLEAN_UP) { | ||
| 41 | context_free(context); | ||
| 42 | freecon(oldcon); | ||
| 43 | } | ||
| 44 | } | ||
| 45 | return; | ||
| 46 | error: | ||
| 47 | bb_perror_msg_and_die("SELinux relabeling failed"); | ||
| 48 | } | ||
| 49 | #else | ||
| 50 | #define mkswap_selinux_setcontext(fd, path) ((void)0) | ||
| 51 | #endif | ||
| 52 | |||
| 11 | int mkswap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | 53 | int mkswap_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| 12 | int mkswap_main(int argc, char **argv) | 54 | int mkswap_main(int argc, char **argv) |
| 13 | { | 55 | { |
| @@ -26,6 +68,7 @@ int mkswap_main(int argc, char **argv) | |||
| 26 | pagesize = getpagesize(); | 68 | pagesize = getpagesize(); |
| 27 | printf("Setting up swapspace version 1, size = %"OFF_FMT"d bytes\n", | 69 | printf("Setting up swapspace version 1, size = %"OFF_FMT"d bytes\n", |
| 28 | len - pagesize); | 70 | len - pagesize); |
| 71 | mkswap_selinux_setcontext(fd, argv[1]); | ||
| 29 | 72 | ||
| 30 | // Make a header. | 73 | // Make a header. |
| 31 | 74 | ||
| @@ -38,7 +81,7 @@ int mkswap_main(int argc, char **argv) | |||
| 38 | 81 | ||
| 39 | xlseek(fd, 1024, SEEK_SET); | 82 | xlseek(fd, 1024, SEEK_SET); |
| 40 | xwrite(fd, hdr, sizeof(hdr)); | 83 | xwrite(fd, hdr, sizeof(hdr)); |
| 41 | xlseek(fd, pagesize-10, SEEK_SET); | 84 | xlseek(fd, pagesize - 10, SEEK_SET); |
| 42 | xwrite(fd, "SWAPSPACE2", 10); | 85 | xwrite(fd, "SWAPSPACE2", 10); |
| 43 | fsync(fd); | 86 | fsync(fd); |
| 44 | 87 | ||