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nl80211util: Ensure all entries are parsed

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The current logic did not make sure that each entry provided was
actually parsed.  Also add a sanity check to make sure that no duplicate
parsing occurs.
This commit is contained in:
Denis Kenzior 2019-10-25 13:46:58 -05:00
parent d577036879
commit 3b937424db
1 changed files with 19 additions and 0 deletions
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19
src/nl80211util.c
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@ -110,6 +110,7 @@ struct attr_entry {
uint16_t type;
void *data;
attr_handler handler;
bool present : 1;
};
int nl80211_parse_attrs(struct l_genl_msg *msg, int tag, ...)
@ -158,10 +159,28 @@ int nl80211_parse_attrs(struct l_genl_msg *msg, int tag, ...)
if (!e)
continue;
if (entry->present) {
ret = -EALREADY;
goto done;
}
if (!entry->handler(data, len, entry->data)) {
ret = -EINVAL;
goto done;
}
entry->present = true;
}
ret = -ENOENT;
for (e = l_queue_get_entries(entries); e; e = e->next) {
entry = e->data;
if (entry->present)
continue;
goto done;
}
ret = 0;