SKB_PEEK_NEXT(9) Linux Networking SKB_PEEK_NEXT(9)NAME
skb_peek_next - peek skb following the given one from a queue
SYNOPSIS
struct sk_buff * skb_peek_next(struct sk_buff * skb, const struct sk_buff_head * list_);
ARGUMENTS
skb
skb to start from
list_
list to peek at
DESCRIPTION
Returns NULL when the end of the list is met or a pointer to the next element. The reference count is not incremented and the reference is
therefore volatile. Use with caution.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SKB_PEEK_NEXT(9)
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CFG80211_TESTMODE_AL(9) Test mode CFG80211_TESTMODE_AL(9)NAME
cfg80211_testmode_alloc_reply_skb - allocate testmode reply
SYNOPSIS
struct sk_buff * cfg80211_testmode_alloc_reply_skb(struct wiphy * wiphy, int approxlen);
ARGUMENTS
wiphy
the wiphy
approxlen
an upper bound of the length of the data that will be put into the skb
DESCRIPTION
This function allocates and pre-fills an skb for a reply to the testmode command. Since it is intended for a reply, calling it outside of
the testmode_cmd operation is invalid.
The returned skb is pre-filled with the wiphy index and set up in a way that any data that is put into the skb (with skb_put, nla_put or
similar) will end up being within the NL80211_ATTR_TESTDATA attribute, so all that needs to be done with the skb is adding data for the
corresponding userspace tool which can then read that data out of the testdata attribute. You must not modify the skb in any other way.
When done, call cfg80211_testmode_reply with the skb and return its error code as the result of the testmode_cmd operation.
RETURN
An allocated and pre-filled skb. NULL if any errors happen.
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 CFG80211_TESTMODE_AL(9)
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