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ipfw: make algo name argument optional for some table types

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Most of table types currently supported by ipfw have only one
algorithm implementation. When user creates such tables, allow
to omit algo name in arguments. E.g. now it is possible:
	ipfw table T1 create type number
	ipfw table T2 create type iface
	ipfw table T3 create type flow

PR:		233072
Sponsored by:	Yandex LLC

(cherry picked from commit 13ad237a19)
This commit is contained in:
Andrey V. Elsukov 2021-02-25 16:57:47 +03:00
parent 05e742af6f
commit 8d0f1438b0
1 changed files with 18 additions and 2 deletions
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20
sbin/ipfw/tables.c
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@ -83,6 +83,15 @@ static struct _s_x tabletypes[] = {
{ NULL, 0 }
};
/* Default algorithms for various table types */
static struct _s_x tablealgos[] = {
{ "addr:radix", IPFW_TABLE_ADDR },
{ "flow:hash", IPFW_TABLE_FLOW },
{ "iface:array", IPFW_TABLE_INTERFACE },
{ "number:array", IPFW_TABLE_NUMBER },
{ NULL, 0 }
};
static struct _s_x tablevaltypes[] = {
{ "skipto", IPFW_VTYPE_SKIPTO },
{ "pipe", IPFW_VTYPE_PIPE },
@ -468,8 +477,15 @@ table_create(ipfw_obj_header *oh, int ac, char *av[])
}
/* Set some defaults to preserve compatibility. */
if (xi.algoname[0] == '\0' && xi.type == 0)
xi.type = IPFW_TABLE_ADDR;
if (xi.algoname[0] == '\0') {
const char *algo;
if (xi.type == 0)
xi.type = IPFW_TABLE_ADDR;
algo = match_value(tablealgos, xi.type);
if (algo != NULL)
strlcpy(xi.algoname, algo, sizeof(xi.algoname));
}
if (xi.vmask == 0)
xi.vmask = IPFW_VTYPE_LEGACY;