static int em_text_match(struct sk_buff *skb, struct tcf_ematch *m,
struct tcf_pkt_info *info)
{
struct text_match *tm = EM_TEXT_PRIV(m);
int from, to;
struct ts_state state;
from = tcf_get_base_ptr(skb, tm->from_layer) - skb->data;
from += tm->from_offset;
to = tcf_get_base_ptr(skb, tm->to_layer) - skb->data;
to += tm->to_offset;
return skb_find_text(skb, from, to, tm->config, &state) != UINT_MAX;
}
static int em_text_dump(struct sk_buff *skb, struct tcf_ematch *m)
{
struct text_match *tm = EM_TEXT_PRIV(m);
struct tcf_em_text conf;
strncpy(conf.algo, tm->config->ops->name, sizeof(conf.algo) - 1);
conf.from_offset = tm->from_offset;
conf.to_offset = tm->to_offset;
conf.from_layer = tm->from_layer;
conf.to_layer = tm->to_layer;
conf.pattern_len = textsearch_get_pattern_len(tm->config);
conf.pad = 0;
RTA_PUT_NOHDR(skb, sizeof(conf), &conf);
RTA_APPEND(skb, conf.pattern_len, textsearch_get_pattern(tm->config));
return 0;
rtattr_failure:
return -1;
}
static int em_text_dump(struct sk_buff *skb, struct tcf_ematch *m)
{
struct text_match *tm = EM_TEXT_PRIV(m);
struct tcf_em_text conf;
strncpy(conf.algo, tm->config->ops->name, sizeof(conf.algo) - 1);
conf.from_offset = tm->from_offset;
conf.to_offset = tm->to_offset;
conf.from_layer = tm->from_layer;
conf.to_layer = tm->to_layer;
conf.pattern_len = textsearch_get_pattern_len(tm->config);
conf.pad = 0;
if (nla_put_nohdr(skb, sizeof(conf), &conf) < 0)
goto nla_put_failure;
if (nla_append(skb, conf.pattern_len,
textsearch_get_pattern(tm->config)) < 0)
goto nla_put_failure;
return 0;
nla_put_failure:
return -1;
}
static void em_text_destroy(struct tcf_proto *tp, struct tcf_ematch *m)
{
textsearch_destroy(EM_TEXT_PRIV(m)->config);
}
