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add IEEE80211_KEY_UNDEFINED and use it instead of local defs

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Obtained from:	netbsd
This commit is contained in:
Sam Leffler 2007-03-11 06:36:10 +00:00
parent b265ac32c2
commit cda15ce18b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=167432
3 changed files with 10 additions and 7 deletions
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4
sys/net80211/ieee80211_crypto.c
View File

@ -521,7 +521,7 @@ ieee80211_crypto_encap(struct ieee80211com *ic,
*/
wh = mtod(m, struct ieee80211_frame *);
if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
ni->ni_ucastkey.wk_cipher == &ieee80211_cipher_none) {
IEEE80211_KEY_UNDEFINED(&ni->ni_ucastkey)) {
if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE) {
IEEE80211_DPRINTF(ic, IEEE80211_MSG_CRYPTO,
"[%s] no default transmit key (%s) deftxkey %u\n",
@ -577,7 +577,7 @@ ieee80211_crypto_decap(struct ieee80211com *ic,
ivp = mtod(m, const u_int8_t *) + hdrlen; /* XXX contig */
keyid = ivp[IEEE80211_WEP_IVLEN];
if (IEEE80211_IS_MULTICAST(wh->i_addr1) ||
ni->ni_ucastkey.wk_cipher == &ieee80211_cipher_none)
IEEE80211_KEY_UNDEFINED(&ni->ni_ucastkey))
k = &ic->ic_nw_keys[keyid >> 6];
else
k = &ni->ni_ucastkey;

3
sys/net80211/ieee80211_crypto.h
View File

@ -169,6 +169,9 @@ struct ieee80211_cipher {
};
extern const struct ieee80211_cipher ieee80211_cipher_none;
#define IEEE80211_KEY_UNDEFINED(k) \
((k)->wk_cipher == &ieee80211_cipher_none)
void ieee80211_crypto_register(const struct ieee80211_cipher *);
void ieee80211_crypto_unregister(const struct ieee80211_cipher *);
int ieee80211_crypto_available(u_int cipher);

10
sys/net80211/ieee80211_output.c
View File

@ -573,7 +573,6 @@ ieee80211_mbuf_adjust(struct ieee80211com *ic, int hdrsize,
#undef TO_BE_RECLAIMED
}
#define KEY_UNDEFINED(k) ((k).wk_cipher == &ieee80211_cipher_none)
/*
* Return the transmit key to use in sending a unicast frame.
* If a unicast key is set we use that. When no unicast key is set
@ -582,9 +581,9 @@ ieee80211_mbuf_adjust(struct ieee80211com *ic, int hdrsize,
static __inline struct ieee80211_key *
ieee80211_crypto_getucastkey(struct ieee80211com *ic, struct ieee80211_node *ni)
{
if (KEY_UNDEFINED(ni->ni_ucastkey)) {
if (IEEE80211_KEY_UNDEFINED(&ni->ni_ucastkey)) {
if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE ||
KEY_UNDEFINED(ic->ic_nw_keys[ic->ic_def_txkey]))
IEEE80211_KEY_UNDEFINED(&ic->ic_nw_keys[ic->ic_def_txkey]))
return NULL;
return &ic->ic_nw_keys[ic->ic_def_txkey];
} else {
@ -601,7 +600,7 @@ static __inline struct ieee80211_key *
ieee80211_crypto_getmcastkey(struct ieee80211com *ic, struct ieee80211_node *ni)
{
if (ic->ic_def_txkey == IEEE80211_KEYIX_NONE ||
KEY_UNDEFINED(ic->ic_nw_keys[ic->ic_def_txkey]))
IEEE80211_KEY_UNDEFINED(&ic->ic_nw_keys[ic->ic_def_txkey]))
return NULL;
return &ic->ic_nw_keys[ic->ic_def_txkey];
}
@ -752,7 +751,8 @@ ieee80211_encap(struct ieee80211com *ic, struct mbuf *m,
if (eh.ether_type != htons(ETHERTYPE_PAE) ||
((ic->ic_flags & IEEE80211_F_WPA) &&
(ic->ic_opmode == IEEE80211_M_STA ?
!KEY_UNDEFINED(*key) : !KEY_UNDEFINED(ni->ni_ucastkey)))) {
!IEEE80211_KEY_UNDEFINED(key) :
!IEEE80211_KEY_UNDEFINED(&ni->ni_ucastkey)))) {
wh->i_fc[1] |= IEEE80211_FC1_WEP;
/* XXX do fragmentation */
if (!ieee80211_crypto_enmic(ic, key, m, 0)) {