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[net80211] Add a variant on ieee80211_get_rx_params() that returns a pointer.

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Be careful when calling this, as the underlying mbuf may change
afterwards - common in the RX path.
This commit is contained in:
Adrian Chadd 2016-10-23 08:21:35 +00:00
parent 561da369d7
commit d24ac5fb28
2 changed files with 16 additions and 0 deletions
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15
sys/net80211/ieee80211_freebsd.c
View File

@ -529,6 +529,21 @@ ieee80211_get_rx_params(struct mbuf *m, struct ieee80211_rx_stats *rxs)
return (0);
}
const struct ieee80211_rx_stats *
ieee80211_get_rx_params_ptr(struct mbuf *m)
{
struct m_tag *mtag;
struct ieee80211_rx_params *rx;
mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_RECV_PARAMS,
NULL);
if (mtag == NULL)
return (NULL);
rx = (struct ieee80211_rx_params *)(mtag + 1);
return (&rx->params);
}
/*
* Add TOA parameters to the given mbuf.
*/

1
sys/net80211/ieee80211_freebsd.h
View File

@ -713,6 +713,7 @@ int ieee80211_add_rx_params(struct mbuf *m,
const struct ieee80211_rx_stats *rxs);
int ieee80211_get_rx_params(struct mbuf *m,
struct ieee80211_rx_stats *rxs);
const struct ieee80211_rx_stats * ieee80211_get_rx_params_ptr(struct mbuf *m);
struct ieee80211_toa_params {
int request_id;