DGNum/iwinfo
6
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

nl80211: fix issues with renamed wiphy and multiple phy per device

Browse source 
Remove the assumption that phy names follow the format phy%d and instead look
up the phy index from sysfs properly

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2022-10-14 10:59:07 +02:00
parent 4a43b0d40b
commit 0496c722f1
1 changed files with 11 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
iwinfo_nl80211.c
View file

@ -241,11 +241,15 @@ static const char *nl80211_phy_path_str(const char *phyname)
int buf_len, offset;
struct dirent *e;
char buf[128], *link;
int phy_id;
int phy_idx;
int seq = 0;
DIR *d;
phy_id = atoi(phyname + 3);
snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/index", phyname);
phy_idx = nl80211_readint(buf);
if (phy_idx < 0)
return NULL;
buf_len = snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/device", phyname);
link = realpath(buf, path);
if (!link)
@ -267,13 +271,14 @@ static const char *nl80211_phy_path_str(const char *phyname)
return link;
while ((e = readdir(d)) != NULL) {
int cur_id;
int cur_idx;
if (strncmp(e->d_name, "phy", 3) != 0)
snprintf(buf, sizeof(buf), "/sys/class/ieee80211/%s/index", e->d_name);
cur_idx = nl80211_readint(buf);
if (cur_idx < 0)
continue;
cur_id = atoi(e->d_name + 3);
if (cur_id >= phy_id)
if (cur_idx >= phy_idx)
continue;
seq++;