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net80211: copy MAC address into iv_myaddr[] instead of aliasing it.

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Since IF_LLADDR() returns a non-constant pointer to the MAC address
preserve a copy of it in iv_myaddr.

PR:		208505
This commit is contained in:
Andriy Voskoboinyk 2016-04-05 21:29:11 +00:00
parent 91da76981b
commit 1d47c76c8c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=297592
2 changed files with 4 additions and 3 deletions
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4
sys/net80211/ieee80211.c
View File

@ -483,7 +483,7 @@ ieee80211_vap_setup(struct ieee80211com *ic, struct ieee80211vap *vap,
vap->iv_htextcaps = ic->ic_htextcaps;
vap->iv_opmode = opmode;
vap->iv_caps |= ieee80211_opcap[opmode];
vap->iv_myaddr = ic->ic_macaddr;
IEEE80211_ADDR_COPY(vap->iv_myaddr, ic->ic_macaddr);
switch (opmode) {
case IEEE80211_M_WDS:
/*
@ -603,7 +603,7 @@ ieee80211_vap_attach(struct ieee80211vap *vap, ifm_change_cb_t media_change,
ifp->if_baudrate = IF_Mbps(maxrate);
ether_ifattach(ifp, macaddr);
vap->iv_myaddr = IF_LLADDR(ifp);
IEEE80211_ADDR_COPY(vap->iv_myaddr, IF_LLADDR(ifp));
/* hook output method setup by ether_ifattach */
vap->iv_output = ifp->if_output;
ifp->if_output = ieee80211_output;

3
sys/net80211/ieee80211_var.h
View File

@ -362,7 +362,8 @@ struct ieee80211vap {
TAILQ_ENTRY(ieee80211vap) iv_next; /* list of vap instances */
struct ieee80211com *iv_ic; /* back ptr to common state */
const uint8_t *iv_myaddr; /* MAC address: ifp or ic */
/* MAC address: ifp or ic */
uint8_t iv_myaddr[IEEE80211_ADDR_LEN];
uint32_t iv_debug; /* debug msg flags */
struct ieee80211_stats iv_stats; /* statistics */