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wscutil: Check authenticator more strictly

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Make sure Authenticator is the last data in the WSC PDU, with no
extraneous data afterwards
This commit is contained in:
Denis Kenzior 2016-08-28 02:45:40 -05:00
parent c6f086d741
commit b650b16d6f
2 changed files with 10 additions and 0 deletions
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5
src/wscutil.c
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@ -700,6 +700,11 @@ static int wsc_parse_attrs(const unsigned char *pdu, unsigned int len,
parse_error = true; parse_error = true;
goto done; goto done;
} }
if (wsc_attr_iter_get_pos(&iter) != len) {
parse_error = true;
goto done;
}
} }
/* /*

5
src/wscutil.h
View File

@ -324,6 +324,11 @@ static inline const unsigned char *wsc_attr_iter_get_data(
return iter->data; return iter->data;
} }
static inline unsigned int wsc_attr_iter_get_pos(struct wsc_attr_iter *iter)
{
return iter->pos;
}
struct wsc_primary_device_type { struct wsc_primary_device_type {
uint16_t category; uint16_t category;
uint8_t oui[3]; uint8_t oui[3];