From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: duncan_roe@optusnet.com.au
Subject: [PATCH libnetfilter_queue 3/3] pktbuff: add pktb_reset_network_header() and pktb_set_network_header()
Date: Sun, 26 Apr 2020 15:23:56 +0200 [thread overview]
Message-ID: <20200426132356.8346-4-pablo@netfilter.org> (raw)
In-Reply-To: <20200426132356.8346-1-pablo@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
include/libnetfilter_queue/pktbuff.h | 3 +++
| 13 +++++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/libnetfilter_queue/pktbuff.h b/include/libnetfilter_queue/pktbuff.h
index f9bddaf072fb..875157922c81 100644
--- a/include/libnetfilter_queue/pktbuff.h
+++ b/include/libnetfilter_queue/pktbuff.h
@@ -9,6 +9,9 @@ void pktb_free(struct pkt_buff *pktb);
void pktb_build_data(struct pkt_buff *pktb, uint8_t *payload, uint32_t len);
+void pktb_reset_network_header(struct pkt_buff *pktb);
+void pktb_set_network_header(struct pkt_buff *pktb, const int offset);
+
uint8_t *pktb_data(struct pkt_buff *pktb);
uint32_t pktb_len(struct pkt_buff *pktb);
--git a/src/extra/pktbuff.c b/src/extra/pktbuff.c
index a93e72ac7795..3ff287e57315 100644
--- a/src/extra/pktbuff.c
+++ b/src/extra/pktbuff.c
@@ -267,6 +267,19 @@ uint8_t *pktb_network_header(struct pkt_buff *pktb)
return pktb->network_header;
}
+EXPORT_SYMBOL
+void pktb_reset_network_header(struct pkt_buff *pktb)
+{
+ pktb->network_header = pktb->data;
+}
+
+EXPORT_SYMBOL
+void pktb_set_network_header(struct pkt_buff *pktb, const int offset)
+{
+ pktb_reset_network_header(pktb);
+ pktb->network_header += offset;
+}
+
/**
* pktb_transport_header - get address of layer 4 header (if known)
* \param pktb Pointer to userspace packet buffer
--
2.20.1
next prev parent reply other threads:[~2020-04-26 13:24 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-26 13:23 [PATCH libnetfilter_queue 0/3] pktbuff API updates Pablo Neira Ayuso
2020-04-26 13:23 ` [PATCH libnetfilter_queue 1/3] pktbuff: add pktb_alloc_head() and pktb_build_data() Pablo Neira Ayuso
2020-04-30 5:41 ` Duncan Roe
2020-04-26 13:23 ` [PATCH libnetfilter_queue 2/3] example: nf-queue: use pkt_buff Pablo Neira Ayuso
2020-05-14 4:35 ` Duncan Roe
2020-05-14 4:35 ` [PATCH libnetfilter_queue 1/1] example: nf-queue: use pkt_buff (updated) Duncan Roe
2020-04-26 13:23 ` Pablo Neira Ayuso [this message]
2020-04-27 11:06 ` [PATCH libnetfilter_queue 0/3] pktbuff API updates Duncan Roe
2020-04-27 17:06 ` Pablo Neira Ayuso
2020-04-28 4:33 ` Duncan Roe
2020-04-28 10:34 ` Pablo Neira Ayuso
2020-04-28 21:14 ` Duncan Roe
2020-04-28 22:55 ` Pablo Neira Ayuso
2020-04-29 13:28 ` Duncan Roe
2020-04-29 19:00 ` Pablo Neira Ayuso
2020-04-29 19:54 ` Duncan Roe
2020-04-29 21:12 ` Pablo Neira Ayuso
2020-04-29 19:10 ` Duncan Roe
2020-04-29 19:16 ` Pablo Neira Ayuso
2020-04-29 20:30 ` Duncan Roe
2020-04-29 21:05 ` Pablo Neira Ayuso
2020-04-30 6:34 ` Duncan Roe
2020-05-02 12:50 ` Duncan Roe
2020-05-05 12:30 ` Pablo Neira Ayuso
2020-05-06 0:57 ` Duncan Roe
2020-05-06 2:39 ` Duncan Roe
2020-05-08 1:13 ` Duncan Roe
2020-05-09 8:26 ` Duncan Roe
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