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From 8791b5b3934c55694872b6915a67340683ead91b Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Fri, 20 Feb 2015 05:22:52 +0000
Subject: [PATCH 09/11] sysv-generator: add support for executing scripts under
/etc/rcS.d/
To be compatible, all services translated from scripts under /etc/rcS.d would
run before services translated from scripts under /etc/rcN.d.
Upstream-Status: Inappropriate [OE specific]
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
src/sysv-generator/sysv-generator.c | 50 ++++++++++++++++++++++++++++---------
1 file changed, 38 insertions(+), 12 deletions(-)
diff --git a/src/sysv-generator/sysv-generator.c b/src/sysv-generator/sysv-generator.c
index bd67f32..6756cc6 100644
--- a/src/sysv-generator/sysv-generator.c
+++ b/src/sysv-generator/sysv-generator.c
@@ -42,7 +42,8 @@
typedef enum RunlevelType {
RUNLEVEL_UP,
- RUNLEVEL_DOWN
+ RUNLEVEL_DOWN,
+ RUNLEVEL_SYSINIT
} RunlevelType;
static const struct {
@@ -57,6 +58,9 @@ static const struct {
{ "rc4.d", SPECIAL_MULTI_USER_TARGET, RUNLEVEL_UP },
{ "rc5.d", SPECIAL_GRAPHICAL_TARGET, RUNLEVEL_UP },
+ /* Debian style rcS.d, also adopted by OE */
+ { "rcS.d", SPECIAL_SYSINIT_TARGET, RUNLEVEL_SYSINIT},
+
/* Standard SysV runlevels for shutdown */
{ "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN },
{ "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN }
@@ -65,7 +69,7 @@ static const struct {
directories in this order, and we want to make sure that
sysv_start_priority is known when we first load the
unit. And that value we only know from S links. Hence
- UP must be read before DOWN */
+ UP/SYSINIT must be read before DOWN */
};
typedef struct SysvStub {
@@ -81,6 +85,8 @@ typedef struct SysvStub {
char **conflicts;
bool has_lsb;
bool reload;
+ bool default_dependencies;
+ bool from_rcsd;
} SysvStub;
const char *arg_dest = "/tmp";
@@ -183,6 +189,9 @@ static int generate_unit_file(SysvStub *s) {
"Description=%s\n",
s->path, s->description);
+ if (!s->default_dependencies)
+ fprintf(f, "DefaultDependencies=no\n");
+
if (!isempty(before))
fprintf(f, "Before=%s\n", before);
if (!isempty(after))
@@ -704,18 +713,30 @@ static int fix_order(SysvStub *s, Hashmap *all_services) {
if (s->has_lsb && other->has_lsb)
continue;
- if (other->sysv_start_priority < s->sysv_start_priority) {
- r = strv_extend(&s->after, other->name);
+ /* All scripts under /etc/rcS.d should execute before scripts under
+ * /etc/rcN.d */
+ if (!other->from_rcsd && s->from_rcsd) {
+ r = strv_extend(&s->before, other->name);
if (r < 0)
return log_oom();
- }
- else if (other->sysv_start_priority > s->sysv_start_priority) {
- r = strv_extend(&s->before, other->name);
+ } else if (other->from_rcsd && !s->from_rcsd) {
+ r = strv_extend(&s->after, other->name);
if (r < 0)
return log_oom();
- }
- else
- continue;
+ } else {
+ if (other->sysv_start_priority < s->sysv_start_priority) {
+ r = strv_extend(&s->after, other->name);
+ if (r < 0)
+ return log_oom();
+ }
+ else if (other->sysv_start_priority > s->sysv_start_priority) {
+ r = strv_extend(&s->before, other->name);
+ if (r < 0)
+ return log_oom();
+ }
+ else
+ continue;
+ }
/* FIXME: Maybe we should compare the name here lexicographically? */
}
@@ -778,6 +799,8 @@ static int enumerate_sysv(LookupPaths lp, Hashmap *all_services) {
return log_oom();
service->sysv_start_priority = -1;
+ service->default_dependencies = true;
+ service->from_rcsd = false;
service->name = name;
service->path = fpath;
@@ -864,9 +887,11 @@ static int set_dependencies_from_rcnd(LookupPaths lp, Hashmap *all_services) {
if (de->d_name[0] == 'S') {
- if (rcnd_table[i].type == RUNLEVEL_UP) {
+ if (rcnd_table[i].type == RUNLEVEL_UP || rcnd_table[i].type == RUNLEVEL_SYSINIT) {
service->sysv_start_priority =
MAX(a*10 + b, service->sysv_start_priority);
+ service->default_dependencies = (rcnd_table[i].type == RUNLEVEL_SYSINIT)?false:true;
+ service->from_rcsd = (rcnd_table[i].type == RUNLEVEL_SYSINIT)?true:false;
}
r = set_ensure_allocated(&runlevel_services[i], NULL);
@@ -878,7 +903,8 @@ static int set_dependencies_from_rcnd(LookupPaths lp, Hashmap *all_services) {
goto finish;
} else if (de->d_name[0] == 'K' &&
- (rcnd_table[i].type == RUNLEVEL_DOWN)) {
+ (rcnd_table[i].type == RUNLEVEL_DOWN ||
+ rcnd_table[i].type == RUNLEVEL_SYSINIT)) {
r = set_ensure_allocated(&shutdown_services, NULL);
if (r < 0)
--
2.1.4
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