X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Ffstab-generator%2Ffstab-generator.c;h=2a779bbccf800cc80dc2233b14e1b2b7de0f0dc6;hb=01264ad1cc27ecaa059857429ed1b4f3994b26c3;hp=cf85d3189a9267ab8bcba5515e8cb8e8e27b6880;hpb=9e5f0f92915b777308797294c6e103e430957b5d;p=elogind.git diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c index cf85d3189..2a779bbcc 100644 --- a/src/fstab-generator/fstab-generator.c +++ b/src/fstab-generator/fstab-generator.c @@ -69,7 +69,7 @@ static int mount_find_pri(struct mntent *me, int *ret) { errno = 0; r = strtoul(pri, &end, 10); - if (errno != 0) + if (errno > 0) return -errno; if (end == pri || (*end != ',' && *end != 0)) @@ -80,8 +80,8 @@ static int mount_find_pri(struct mntent *me, int *ret) { } static int add_swap(const char *what, struct mntent *me) { - char _cleanup_free_ *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL; - FILE _cleanup_fclose_ *f = NULL; + _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL; + _cleanup_fclose_ FILE *f = NULL; bool noauto, nofail; int r, pri = -1; @@ -199,19 +199,25 @@ static bool mount_in_initrd(struct mntent *me) { streq(me->mnt_dir, "/usr"); } -static bool mount_is_rootfs(struct mntent *me) { - assert(me); - - return hasmntopt(me, "x-initrd-rootfs.mount"); -} - -static int add_mount(const char *what, const char *where, const char *type, const char *opts, - int passno, bool noauto, bool nofail, bool automount, bool isbind, - const char *pre, const char *post, const char *source) { - char _cleanup_free_ +static int add_mount( + const char *what, + const char *where, + const char *type, + const char *opts, + int passno, + bool noauto, + bool nofail, + bool automount, + bool isbind, + const char *pre, + const char *pre2, + const char *online, + const char *post, + const char *source) { + _cleanup_free_ char *name = NULL, *unit = NULL, *lnk = NULL, *device = NULL, *automount_name = NULL, *automount_unit = NULL; - FILE _cleanup_fclose_ *f = NULL; + _cleanup_fclose_ FILE *f = NULL; int r; assert(what); @@ -258,11 +264,22 @@ static int add_mount(const char *what, const char *where, const char *type, cons if (!path_equal(where, "/")) { if (pre) + fprintf(f, + "After=%s\n", + pre); + + if (pre2) + fprintf(f, + "After=%s\n", + pre2); + + if (online) fprintf(f, "After=%s\n" "Wants=%s\n", - pre, - pre); + online, + online); + fprintf(f, "Conflicts=" SPECIAL_UMOUNT_TARGET "\n" "Before=" SPECIAL_UMOUNT_TARGET "\n"); @@ -334,7 +351,7 @@ static int add_mount(const char *what, const char *where, const char *type, cons if (automount && !path_equal(where, "/")) { automount_name = unit_name_from_path(where, ".automount"); - if (!name) + if (!automount_name) return log_oom(); automount_unit = strjoin(arg_dest, "/", automount_name, NULL); @@ -389,31 +406,33 @@ static int add_mount(const char *what, const char *where, const char *type, cons } static int parse_fstab(const char *prefix, bool initrd) { - FILE *f; _cleanup_free_ char *fstab_path = NULL; + FILE *f; int r = 0; struct mntent *me; - errno = 0; - fstab_path = strjoin(prefix, "/etc/fstab", NULL); + fstab_path = strjoin(strempty(prefix), "/etc/fstab", NULL); + if (!fstab_path) + return log_oom(); + f = setmntent(fstab_path, "r"); if (!f) { if (errno == ENOENT) return 0; - log_error("Failed to open %s/etc/fstab: %m", prefix); + log_error("Failed to open %s/etc/fstab: %m", strempty(prefix)); return -errno; } while ((me = getmntent(f))) { - char _cleanup_free_ *where = NULL, *what = NULL; + _cleanup_free_ char *where = NULL, *what = NULL; int k; if (initrd && !mount_in_initrd(me)) continue; what = fstab_node_to_udev_node(me->mnt_fsname); - where = strjoin(prefix, me->mnt_dir, NULL); + where = strjoin(strempty(prefix), me->mnt_dir, NULL); if (!what || !where) { r = log_oom(); goto finish; @@ -428,7 +447,7 @@ static int parse_fstab(const char *prefix, bool initrd) { k = add_swap(what, me); else { bool noauto, nofail, automount, isbind; - const char *pre, *post; + const char *pre, *pre2, *post, *online; noauto = !!hasmntopt(me, "noauto"); nofail = !!hasmntopt(me, "nofail"); @@ -438,22 +457,25 @@ static int parse_fstab(const char *prefix, bool initrd) { isbind = mount_is_bind(me); if (initrd) { + pre = pre2 = online = NULL; post = SPECIAL_INITRD_FS_TARGET; - pre = NULL; - } else if (mount_is_rootfs(me)) { + } else if (mount_in_initrd(me)) { + pre = pre2 = online = NULL; post = SPECIAL_INITRD_ROOT_FS_TARGET; - pre = NULL; } else if (mount_is_network(me)) { - post = SPECIAL_REMOTE_FS_TARGET; pre = SPECIAL_REMOTE_FS_PRE_TARGET; + pre2 = SPECIAL_NETWORK_TARGET; + online = SPECIAL_NETWORK_ONLINE_TARGET; + post = SPECIAL_REMOTE_FS_TARGET; } else { - post = SPECIAL_LOCAL_FS_TARGET; pre = SPECIAL_LOCAL_FS_PRE_TARGET; + pre2 = online = NULL; + post = SPECIAL_LOCAL_FS_TARGET; } k = add_mount(what, where, me->mnt_type, me->mnt_opts, - me->mnt_passno, noauto, nofail, automount, - isbind, pre, post, fstab_path); + me->mnt_passno, noauto, nofail, automount, + isbind, pre, pre2, online, post, fstab_path); } if (k < 0) @@ -466,10 +488,11 @@ finish: } static int parse_new_root_from_proc_cmdline(void) { - char *w, *state; _cleanup_free_ char *what = NULL, *type = NULL, *opts = NULL, *line = NULL; + char *w, *state; int r; size_t l; + bool noauto, nofail; r = read_one_line_file("/proc/cmdline", &line); if (r < 0) { @@ -485,7 +508,7 @@ static int parse_new_root_from_proc_cmdline(void) { /* root= and roofstype= may occur more than once, the last instance should take precedence. * In the case of multiple rootflags= the arguments should be concatenated */ FOREACH_WORD_QUOTED(w, l, line, state) { - char *word, *tmp_word; + _cleanup_free_ char *word; word = strndup(w, l); if (!word) @@ -504,26 +527,32 @@ static int parse_new_root_from_proc_cmdline(void) { return log_oom(); } else if (startswith(word, "rootflags=")) { - tmp_word = opts; - opts = strjoin(opts, ",", word + 10, NULL); - free(tmp_word); - if (!opts) + char *o; + + o = strjoin(opts, ",", word + 10, NULL); + if (!o) return log_oom(); + free(opts); + opts = o; + } else if (streq(word, "ro") || streq(word, "rw")) { - tmp_word = opts; - opts = strjoin(opts, ",", word, NULL); - free(tmp_word); - if (!opts) + char *o; + + o = strjoin(opts, ",", word, NULL); + if (!o) return log_oom(); + free(opts); + opts = o; } - - free(word); } + noauto = !!strstr(opts, "noauto"); + nofail = !!strstr(opts, "nofail"); + if (!what) { - log_error("Could not find a root= entry on the kernel commandline."); + log_debug("Could not find a root= entry on the kernel commandline."); return 0; } @@ -533,14 +562,14 @@ static int parse_new_root_from_proc_cmdline(void) { } log_debug("Found entry what=%s where=/sysroot type=%s", what, type); - r = add_mount(what, "/sysroot", type, opts, 0, false, false, false, - false, NULL, SPECIAL_INITRD_ROOT_FS_TARGET, "/proc/cmdline"); + r = add_mount(what, "/sysroot", type, opts, 0, noauto, nofail, false, + false, NULL, NULL, NULL, SPECIAL_INITRD_ROOT_FS_TARGET, "/proc/cmdline"); return (r < 0) ? r : 0; } static int parse_proc_cmdline(void) { - char _cleanup_free_ *line = NULL; + _cleanup_free_ char *line = NULL; char *w, *state; int r; size_t l; @@ -555,7 +584,7 @@ static int parse_proc_cmdline(void) { } FOREACH_WORD_QUOTED(w, l, line, state) { - char _cleanup_free_ *word = NULL; + _cleanup_free_ char *word = NULL; word = strndup(w, l); if (!word) @@ -571,9 +600,9 @@ static int parse_proc_cmdline(void) { } else if (startswith(word, "rd.fstab=")) { if (in_initrd()) { - r = parse_boolean(word + 6); + r = parse_boolean(word + 9); if (r < 0) - log_warning("Failed to parse fstab switch %s. Ignoring.", word + 6); + log_warning("Failed to parse fstab switch %s. Ignoring.", word + 9); else arg_enabled = r; } @@ -614,7 +643,7 @@ int main(int argc, char *argv[]) { if (!arg_enabled) return (r < 0) ? EXIT_FAILURE : EXIT_SUCCESS; - k = parse_fstab("", false); + k = parse_fstab(NULL, false); if (in_initrd()) l = parse_fstab("/sysroot", true);