add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/security/selinux/ss/symtab.c
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@@ -9,7 +9,7 @@
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 #include <linux/errno.h>
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 #include "symtab.h"
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-static unsigned int symhash(struct hashtab *h, const void *key)
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+static unsigned int symhash(const void *key)
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 {
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 	const char *p, *keyp;
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 	unsigned int size;
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@@ -20,10 +20,10 @@
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 	size = strlen(keyp);
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 	for (p = keyp; (p - keyp) < size; p++)
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 		val = (val << 4 | (val >> (8*sizeof(unsigned int)-4))) ^ (*p);
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-	return val & (h->size - 1);
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+	return val;
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 }
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-static int symcmp(struct hashtab *h, const void *key1, const void *key2)
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+static int symcmp(const void *key1, const void *key2)
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 {
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 	const char *keyp1, *keyp2;
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@@ -32,13 +32,23 @@
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 	return strcmp(keyp1, keyp2);
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 }
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+static const struct hashtab_key_params symtab_key_params = {
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+	.hash = symhash,
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+	.cmp = symcmp,
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+};
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 int symtab_init(struct symtab *s, unsigned int size)
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 {
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-	s->table = hashtab_create(symhash, symcmp, size);
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-	if (!s->table)
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-		return -ENOMEM;
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 	s->nprim = 0;
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-	return 0;
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+	return hashtab_init(&s->table, size);
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 }
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+int symtab_insert(struct symtab *s, char *name, void *datum)
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+{
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+	return hashtab_insert(&s->table, name, datum, symtab_key_params);
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+}
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+
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+void *symtab_search(struct symtab *s, const char *name)
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+{
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+	return hashtab_search(&s->table, name, symtab_key_params);
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+}