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Code Issues Releases Activity

Allow to configure GPT attributes. It shouldn't be allowed to set bootfailed

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attribute (it should be allowed only to unset it), but for test purposes it
might be useful, so the current code allows it.

Reviewed by:	arch@ (Message-ID: <20100917234542.GE1902@garage.freebsd.pl>)
MFC after:	2 weeks
This commit is contained in:
Pawel Jakub Dawidek 2010-09-24 19:33:47 +00:00
parent 6efb3e341f
commit cec283baf4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=213135
1 changed files with 85 additions and 0 deletions
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85
sys/geom/part/g_part_gpt.c
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@ -100,6 +100,8 @@ static const char *g_part_gpt_name(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_gpt_probe(struct g_part_table *, struct g_consumer *);
static int g_part_gpt_read(struct g_part_table *, struct g_consumer *);
static int g_part_gpt_setunset(struct g_part_table *table,
struct g_part_entry *baseentry, const char *attrib, unsigned int set);
static const char *g_part_gpt_type(struct g_part_table *, struct g_part_entry *,
char *, size_t);
static int g_part_gpt_write(struct g_part_table *, struct g_consumer *);
@ -118,6 +120,7 @@ static kobj_method_t g_part_gpt_methods[] = {
KOBJMETHOD(g_part_name, g_part_gpt_name),
KOBJMETHOD(g_part_probe, g_part_gpt_probe),
KOBJMETHOD(g_part_read, g_part_gpt_read),
KOBJMETHOD(g_part_setunset, g_part_gpt_setunset),
KOBJMETHOD(g_part_type, g_part_gpt_type),
KOBJMETHOD(g_part_write, g_part_gpt_write),
{ 0, 0 }
@ -519,6 +522,16 @@ g_part_gpt_dumpconf(struct g_part_table *table, struct g_part_entry *baseentry,
g_gpt_printf_utf16(sb, entry->ent.ent_name,
sizeof(entry->ent.ent_name) >> 1);
sbuf_printf(sb, "</label>\n");
if (entry->ent.ent_attr & GPT_ENT_ATTR_BOOTME)
sbuf_printf(sb, "%s<attrib>bootme</attrib>\n", indent);
if (entry->ent.ent_attr & GPT_ENT_ATTR_BOOTONCE) {
sbuf_printf(sb, "%s<attrib>bootonce</attrib>\n",
indent);
}
if (entry->ent.ent_attr & GPT_ENT_ATTR_BOOTFAILED) {
sbuf_printf(sb, "%s<attrib>bootfailed</attrib>\n",
indent);
}
sbuf_printf(sb, "%s<rawtype>", indent);
sbuf_printf_uuid(sb, &entry->ent.ent_type);
sbuf_printf(sb, "</rawtype>\n");
@ -755,6 +768,78 @@ g_part_gpt_read(struct g_part_table *basetable, struct g_consumer *cp)
return (0);
}
static int
g_part_gpt_setunset(struct g_part_table *table, struct g_part_entry *baseentry,
const char *attrib, unsigned int set)
{
struct g_part_entry *iter;
struct g_part_gpt_entry *entry;
int changed, bootme, bootonce, bootfailed;
bootme = bootonce = bootfailed = 0;
if (strcasecmp(attrib, "bootme") == 0) {
bootme = 1;
} else if (strcasecmp(attrib, "bootonce") == 0) {
/* BOOTME is set automatically with BOOTONCE, but not unset. */
bootonce = 1;
if (set)
bootme = 1;
} else if (strcasecmp(attrib, "bootfailed") == 0) {
/*
* It should only be possible to unset BOOTFAILED, but it might
* be useful for test purposes to also be able to set it.
*/
bootfailed = 1;
}
if (!bootme && !bootonce && !bootfailed)
return (EINVAL);
LIST_FOREACH(iter, &table->gpt_entry, gpe_entry) {
if (iter->gpe_deleted)
continue;
if (iter != baseentry)
continue;
changed = 0;
entry = (struct g_part_gpt_entry *)iter;
if (set) {
if (bootme &&
!(entry->ent.ent_attr & GPT_ENT_ATTR_BOOTME)) {
entry->ent.ent_attr |= GPT_ENT_ATTR_BOOTME;
changed = 1;
}
if (bootonce &&
!(entry->ent.ent_attr & GPT_ENT_ATTR_BOOTONCE)) {
entry->ent.ent_attr |= GPT_ENT_ATTR_BOOTONCE;
changed = 1;
}
if (bootfailed &&
!(entry->ent.ent_attr & GPT_ENT_ATTR_BOOTFAILED)) {
entry->ent.ent_attr |= GPT_ENT_ATTR_BOOTFAILED;
changed = 1;
}
} else {
if (bootme &&
(entry->ent.ent_attr & GPT_ENT_ATTR_BOOTME)) {
entry->ent.ent_attr &= ~GPT_ENT_ATTR_BOOTME;
changed = 1;
}
if (bootonce &&
(entry->ent.ent_attr & GPT_ENT_ATTR_BOOTONCE)) {
entry->ent.ent_attr &= ~GPT_ENT_ATTR_BOOTONCE;
changed = 1;
}
if (bootfailed &&
(entry->ent.ent_attr & GPT_ENT_ATTR_BOOTFAILED)) {
entry->ent.ent_attr &= ~GPT_ENT_ATTR_BOOTFAILED;
changed = 1;
}
}
if (changed && !iter->gpe_created)
iter->gpe_modified = 1;
}
return (0);
}
static const char *
g_part_gpt_type(struct g_part_table *basetable, struct g_part_entry *baseentry,
char *buf, size_t bufsz)