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[libnetfilter_cthelper] examples: kill the "invalid argument" error in nftc-helper-add

Message ID 1490187647-61659-1-git-send-email-zlpnobody@163.com
State Accepted
Delegated to: Pablo Neira
Headers show

Commit Message

Liping Zhang March 22, 2017, 1 p.m. UTC 
From: Liping Zhang <zlpnobody@gmail.com>

NFCTH_PRIV_DATA_LEN is a must attribute required by the kernel when
creating the cthelper, add it now. Otherwise -EINVAL will be returned.

Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
---
 examples/nfct-helper-add.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/examples/nfct-helper-add.c b/examples/nfct-helper-add.c
index cb7291e..79e0963 100644
--- a/examples/nfct-helper-add.c
+++ b/examples/nfct-helper-add.c
@@ -31,6 +31,7 @@  int main(int argc, char *argv[])
 	nfct_helper_attr_set_u32(nfct_helper, NFCTH_ATTR_QUEUE_NUM, atoi(argv[2]));
 	nfct_helper_attr_set_u16(nfct_helper, NFCTH_ATTR_PROTO_L3NUM, AF_INET);
 	nfct_helper_attr_set_u8(nfct_helper, NFCTH_ATTR_PROTO_L4NUM, IPPROTO_TCP);
+	nfct_helper_attr_set_u32(nfct_helper, NFCTH_ATTR_PRIV_DATA_LEN, 0);
 
 	/* Will be freed by nfct_helper_free. */
 	p = nfct_helper_policy_alloc();