diff options
Diffstat (limited to 'sys/net80211/ieee80211_freebsd.h')
| -rw-r--r-- | sys/net80211/ieee80211_freebsd.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/net80211/ieee80211_freebsd.h b/sys/net80211/ieee80211_freebsd.h index 3684fba52c5c..954801d95787 100644 --- a/sys/net80211/ieee80211_freebsd.h +++ b/sys/net80211/ieee80211_freebsd.h @@ -341,11 +341,16 @@ struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen); #define M_AGE_SUB(m,adj) (m->m_pkthdr.csum_data -= adj) /* - * Store the sequence number. + * Store / retrieve the sequence number in an mbuf. + * + * The sequence number being stored/retreived is the 12 bit + * base sequence number, not the 16 bit sequence number field. + * I.e., it's from 0..4095 inclusive, with no 4 bit padding for + * fragment numbers. */ #define M_SEQNO_SET(m, seqno) \ - ((m)->m_pkthdr.tso_segsz = (seqno)) -#define M_SEQNO_GET(m) ((m)->m_pkthdr.tso_segsz) + ((m)->m_pkthdr.tso_segsz = ((seqno) % IEEE80211_SEQ_RANGE)) +#define M_SEQNO_GET(m) (((m)->m_pkthdr.tso_segsz) % IEEE80211_SEQ_RANGE) #define MTAG_ABI_NET80211 1132948340 /* net80211 ABI */ |