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ip: increased max ID for /etc/iproute2/rt_tables to 1023 

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2015-10-08 15:10:10 +02:00
parent 3d8d5e8ad4
commit 413feca279
1 changed files with 19 additions and 10 deletions
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29
networking/libiproute/rt_names.c
View File

@ -13,7 +13,14 @@
typedef struct rtnl_tab_t { typedef struct rtnl_tab_t {
const char *cached_str; const char *cached_str;
unsigned cached_result; unsigned cached_result;
const char *tab[256]; /* upstream version switched to a hash table and removed
* id < 256 limit. For now bbox bumps this array size from 256
* to 1024. If you plan to change this to a hash table,
* consider merging several hash tables we have (for example,
* awk has resizable one!
*/
#define RT_TABLE_MAX 1023
const char *tab[RT_TABLE_MAX+1];
} rtnl_tab_t; } rtnl_tab_t;
static void rtnl_tab_initialize(const char *file, const char **tab) static void rtnl_tab_initialize(const char *file, const char **tab)
@ -23,7 +30,7 @@ static void rtnl_tab_initialize(const char *file, const char **tab)
while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL)) { while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL)) {
unsigned id = bb_strtou(token[0], NULL, 0); unsigned id = bb_strtou(token[0], NULL, 0);
if (id > 256) { if (id > RT_TABLE_MAX) {
bb_error_msg("database %s is corrupted at line %d", bb_error_msg("database %s is corrupted at line %d",
file, parser->lineno); file, parser->lineno);
break; break;
@ -42,7 +49,7 @@ static int rtnl_a2n(rtnl_tab_t *tab, uint32_t *id, const char *arg, int base)
return 0; return 0;
} }
for (i = 0; i < 256; i++) { for (i = 0; i <= RT_TABLE_MAX; i++) {
if (tab->tab[i] if (tab->tab[i]
&& strcmp(tab->tab[i], arg) == 0 && strcmp(tab->tab[i], arg) == 0
) { ) {
@ -54,7 +61,7 @@ static int rtnl_a2n(rtnl_tab_t *tab, uint32_t *id, const char *arg, int base)
} }
i = bb_strtou(arg, NULL, base); i = bb_strtou(arg, NULL, base);
if (i > 255) if (i > RT_TABLE_MAX)
return -1; return -1;
*id = i; *id = i;
return 0; return 0;
@ -91,7 +98,7 @@ static void rtnl_rtprot_initialize(void)
#if 0 /* UNUSED */ #if 0 /* UNUSED */
const char* FAST_FUNC rtnl_rtprot_n2a(int id) const char* FAST_FUNC rtnl_rtprot_n2a(int id)
{ {
if (id < 0 || id >= 256) { if (id < 0 || id > RT_TABLE_MAX) {
return itoa(id); return itoa(id);
} }
@ -127,7 +134,7 @@ static void rtnl_rtscope_initialize(void)
const char* FAST_FUNC rtnl_rtscope_n2a(int id) const char* FAST_FUNC rtnl_rtscope_n2a(int id)
{ {
if (id < 0 || id >= 256) { if (id < 0 || id > RT_TABLE_MAX) {
return itoa(id); return itoa(id);
} }
@ -164,7 +171,7 @@ int FAST_FUNC rtnl_rtrealm_a2n(uint32_t *id, char *arg)
#if ENABLE_FEATURE_IP_RULE #if ENABLE_FEATURE_IP_RULE
const char* FAST_FUNC rtnl_rtrealm_n2a(int id) const char* FAST_FUNC rtnl_rtrealm_n2a(int id)
{ {
if (id < 0 || id >= 256) { if (id < 0 || id > RT_TABLE_MAX) {
return itoa(id); return itoa(id);
} }
@ -189,7 +196,7 @@ static void rtnl_rtdsfield_initialize(void)
const char* FAST_FUNC rtnl_dsfield_n2a(int id) const char* FAST_FUNC rtnl_dsfield_n2a(int id)
{ {
if (id < 0 || id >= 256) { if (id < 0 || id > RT_TABLE_MAX) {
return itoa(id); return itoa(id);
} }
@ -212,7 +219,9 @@ static rtnl_tab_t *rtnl_rttable_tab;
static void rtnl_rttable_initialize(void) static void rtnl_rttable_initialize(void)
{ {
if (rtnl_rtdsfield_tab) return; if (rtnl_rttable_tab)
return;
rtnl_rttable_tab = xzalloc(sizeof(*rtnl_rttable_tab)); rtnl_rttable_tab = xzalloc(sizeof(*rtnl_rttable_tab));
rtnl_rttable_tab->tab[0] = "unspec"; rtnl_rttable_tab->tab[0] = "unspec";
rtnl_rttable_tab->tab[255] = "local"; rtnl_rttable_tab->tab[255] = "local";
@ -223,7 +232,7 @@ static void rtnl_rttable_initialize(void)
const char* FAST_FUNC rtnl_rttable_n2a(int id) const char* FAST_FUNC rtnl_rttable_n2a(int id)
{ {
if (id < 0 || id >= 256) { if (id < 0 || id > RT_TABLE_MAX) {
return itoa(id); return itoa(id);
} }