* [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
@ 2020-05-01 16:16 Pu Xu
2021-03-25 10:48 ` [dpdk-dev] [PATCH v2] When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr) 583493798
2021-03-25 11:11 ` [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option 583493798
0 siblings, 2 replies; 15+ messages in thread
From: Pu Xu @ 2020-05-01 16:16 UTC (permalink / raw)
To: konstantin.ananyev; +Cc: dev, Pu Xu, anatoly.burakov, stable
When fragmenting ipv4 packet, the data offset should be calculated through
the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
Cc: anatoly.burakov@intel.com
Cc: stable@dpdk.org
Signed-off-by: Pu Xu <583493798@qq.com>
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 34 +++++++++++++--------
1 file changed, 21 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..2e7739d02 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,22 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) *
+ RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +110,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +132,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +184,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* [dpdk-dev] [PATCH v2] When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
2020-05-01 16:16 [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option Pu Xu
@ 2021-03-25 10:48 ` 583493798
2021-03-25 11:11 ` [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option 583493798
1 sibling, 0 replies; 15+ messages in thread
From: 583493798 @ 2021-03-25 10:48 UTC (permalink / raw)
To: dev; +Cc: thomas, Pu Xu, Konstantin Ananyev
From: Pu Xu <583493798@qq.com>
Signed-off-by: Pu Xu <583493798@qq.com>
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 34 +++++++++++++--------
1 file changed, 21 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..2e7739d02 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,22 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) *
+ RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +110,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +132,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +184,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option
2020-05-01 16:16 [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option Pu Xu
2021-03-25 10:48 ` [dpdk-dev] [PATCH v2] When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr) 583493798
@ 2021-03-25 11:11 ` 583493798
2021-03-25 13:09 ` Aaron Conole
2021-04-06 13:53 ` Ananyev, Konstantin
1 sibling, 2 replies; 15+ messages in thread
From: 583493798 @ 2021-03-25 11:11 UTC (permalink / raw)
To: dev; +Cc: thomas, Pu Xu, Konstantin Ananyev, Anatoly Burakov, Thomas Monjalon
From: Pu Xu <583493798@qq.com>
When fragmenting ipv4 packet, the data offset should be calculated through
the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
Signed-off-by: Pu Xu <583493798@qq.com>
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 34 +++++++++++++--------
1 file changed, 21 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..2e7739d02 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,22 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) *
+ RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +110,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +132,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +184,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option
2021-03-25 11:11 ` [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option 583493798
@ 2021-03-25 13:09 ` Aaron Conole
2021-04-06 13:53 ` Ananyev, Konstantin
1 sibling, 0 replies; 15+ messages in thread
From: Aaron Conole @ 2021-03-25 13:09 UTC (permalink / raw)
To: 583493798
Cc: dev, thomas, Konstantin Ananyev, Anatoly Burakov, Thomas Monjalon
583493798@qq.com writes:
> From: Pu Xu <583493798@qq.com>
>
> When fragmenting ipv4 packet, the data offset should be calculated through
> the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
>
> Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
>
> Signed-off-by: Pu Xu <583493798@qq.com>
> ---
Thanks for this patch, it looks okay.
Can you please add a test case to app/test/test_ipfrag.c so that we can
catch any breakage in this area in the future?
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option
2021-03-25 11:11 ` [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option 583493798
2021-03-25 13:09 ` Aaron Conole
@ 2021-04-06 13:53 ` Ananyev, Konstantin
2021-04-21 14:50 ` Thomas Monjalon
1 sibling, 1 reply; 15+ messages in thread
From: Ananyev, Konstantin @ 2021-04-06 13:53 UTC (permalink / raw)
To: 583493798, dev; +Cc: thomas, Burakov, Anatoly, Thomas Monjalon
>
> From: Pu Xu <583493798@qq.com>
>
> When fragmenting ipv4 packet, the data offset should be calculated through
> the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
>
> Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
>
> Signed-off-by: Pu Xu <583493798@qq.com>
> ---
> lib/librte_ip_frag/rte_ipv4_fragmentation.c | 34 +++++++++++++--------
> 1 file changed, 21 insertions(+), 13 deletions(-)
>
> diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> index e9de335ae..2e7739d02 100644
> --- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> +++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> @@ -23,10 +23,10 @@
> #define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
>
> static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
> - const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
> - uint16_t dofs, uint32_t mf)
> + const struct rte_ipv4_hdr *src, uint16_t header_len,
> + uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
> {
> - rte_memcpy(dst, src, sizeof(*dst));
> + rte_memcpy(dst, src, header_len);
> fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
> fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
> dst->fragment_offset = rte_cpu_to_be_16(fofs);
> @@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> struct rte_ipv4_hdr *in_hdr;
> uint32_t out_pkt_pos, in_seg_data_pos;
> uint32_t more_in_segs;
> - uint16_t fragment_offset, flag_offset, frag_size;
> + uint16_t fragment_offset, flag_offset, frag_size, header_len;
> uint16_t frag_bytes_remaining;
>
> /*
> @@ -86,14 +86,22 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> unlikely(mtu_size < RTE_ETHER_MIN_MTU))
> return -EINVAL;
>
> + in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
> + header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) *
> + RTE_IPV4_IHL_MULTIPLIER;
> +
> + /* Check IP header length */
> + if (unlikely(pkt_in->data_len < header_len) ||
> + unlikely(mtu_size < header_len))
> + return -EINVAL;
> +
> /*
> * Ensure the IP payload length of all fragments is aligned to a
> * multiple of 8 bytes as per RFC791 section 2.3.
> */
> - frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
> + frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
> IPV4_HDR_FO_ALIGN);
>
> - in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
> flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
>
> /* If Don't Fragment flag is set */
> @@ -102,11 +110,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>
> /* Check that pkts_out is big enough to hold all fragments */
> if (unlikely(frag_size * nb_pkts_out <
> - (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
> + (uint16_t)(pkt_in->pkt_len - header_len)))
> return -EINVAL;
>
> in_seg = pkt_in;
> - in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
> + in_seg_data_pos = header_len;
> out_pkt_pos = 0;
> fragment_offset = 0;
>
> @@ -124,8 +132,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> }
>
> /* Reserve space for the IP header that will be built later */
> - out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
> - out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
> + out_pkt->data_len = header_len;
> + out_pkt->pkt_len = header_len;
> frag_bytes_remaining = frag_size;
>
> out_seg_prev = out_pkt;
> @@ -176,14 +184,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>
> out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
>
> - __fill_ipv4hdr_frag(out_hdr, in_hdr,
> + __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
> (uint16_t)out_pkt->pkt_len,
> flag_offset, fragment_offset, more_in_segs);
>
> fragment_offset = (uint16_t)(fragment_offset +
> - out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
> + out_pkt->pkt_len - header_len);
>
> - out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
> + out_pkt->l3_len = header_len;
>
> /* Write the fragment to the output list */
> pkts_out[out_pkt_pos] = out_pkt;
> --
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> 2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option
2021-04-06 13:53 ` Ananyev, Konstantin
@ 2021-04-21 14:50 ` Thomas Monjalon
0 siblings, 0 replies; 15+ messages in thread
From: Thomas Monjalon @ 2021-04-21 14:50 UTC (permalink / raw)
To: 583493798; +Cc: dev, Burakov, Anatoly, Ananyev, Konstantin, aconole, stable
> > From: Pu Xu <583493798@qq.com>
> >
> > When fragmenting ipv4 packet, the data offset should be calculated through
> > the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
> >
> > Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
+ Cc: stable@dpdk.org
> > Signed-off-by: Pu Xu <583493798@qq.com>
>
> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
As asked by Aaron, an unit test would be good,
but in this case (after discussion) it won't block the fix to be merged.
Applied, thanks
^ permalink raw reply [flat|nested] 15+ messages in thread
* [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
@ 2020-05-01 16:11 Pu Xu
2020-05-01 20:43 ` Ananyev, Konstantin
0 siblings, 1 reply; 15+ messages in thread
From: Pu Xu @ 2020-05-01 16:11 UTC (permalink / raw)
To: cuanduo; +Cc: dev, Pu Xu, anatoly.burakov, stable
When fragmenting ipv4 packet, the data offset should be calculated through
the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
Cc: anatoly.burakov@intel.com
Cc: stable@dpdk.org
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 34 +++++++++++++--------
1 file changed, 21 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..2e7739d02 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,22 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) *
+ RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +110,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +132,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +184,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
2020-05-01 16:11 [dpdk-dev] [PATCH] " Pu Xu
@ 2020-05-01 20:43 ` Ananyev, Konstantin
2020-05-24 15:27 ` Thomas Monjalon
0 siblings, 1 reply; 15+ messages in thread
From: Ananyev, Konstantin @ 2020-05-01 20:43 UTC (permalink / raw)
To: Pu Xu, cuanduo; +Cc: dev, Burakov, Anatoly, stable
>
> When fragmenting ipv4 packet, the data offset should be calculated through
> the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
>
> Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
> Cc: anatoly.burakov@intel.com
> Cc: stable@dpdk.org
> ---
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> 2.17.0
>
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
2020-05-01 20:43 ` Ananyev, Konstantin
@ 2020-05-24 15:27 ` Thomas Monjalon
2021-03-24 21:30 ` Thomas Monjalon
0 siblings, 1 reply; 15+ messages in thread
From: Thomas Monjalon @ 2020-05-24 15:27 UTC (permalink / raw)
To: Pu Xu; +Cc: cuanduo, dev, Burakov, Anatoly, stable, Ananyev, Konstantin
01/05/2020 22:43, Ananyev, Konstantin:
>
> >
> > When fragmenting ipv4 packet, the data offset should be calculated through
> > the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
> >
> > Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
> > Cc: anatoly.burakov@intel.com
> > Cc: stable@dpdk.org
> > ---
>
> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
The patch cannot be merged because it is missing a Signed-off-by line.
In general, please follow the contributions guideline here:
http://core.dpdk.org/contribute/#send
Would be appreciated to number subsequent versions of the patches,
and use --in-reply-to to keep them threaded.
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
2020-05-24 15:27 ` Thomas Monjalon
@ 2021-03-24 21:30 ` Thomas Monjalon
0 siblings, 0 replies; 15+ messages in thread
From: Thomas Monjalon @ 2021-03-24 21:30 UTC (permalink / raw)
To: Pu Xu; +Cc: dev, cuanduo, Burakov, Anatoly, stable, Ananyev, Konstantin
24/05/2020 17:27, Thomas Monjalon:
> 01/05/2020 22:43, Ananyev, Konstantin:
> >
> > >
> > > When fragmenting ipv4 packet, the data offset should be calculated through
> > > the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
> > >
> > > Fixes: 4c38e5532a07 ("ip_frag: refactor IPv4 fragmentation into a proper library")
> > > Cc: anatoly.burakov@intel.com
> > > Cc: stable@dpdk.org
> > > ---
> >
> > Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
>
> The patch cannot be merged because it is missing a Signed-off-by line.
>
> In general, please follow the contributions guideline here:
> http://core.dpdk.org/contribute/#send
>
> Would be appreciated to number subsequent versions of the patches,
> and use --in-reply-to to keep them threaded.
Are we going to celebrate one year birthday of this patch? :)
How can we proceed?
^ permalink raw reply [flat|nested] 15+ messages in thread
* [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
@ 2020-05-01 13:50 Pu Xu
0 siblings, 0 replies; 15+ messages in thread
From: Pu Xu @ 2020-05-01 13:50 UTC (permalink / raw)
To: cuanduo; +Cc: dev, Pu Xu, olivier.matz, stable
When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
Fixes: a7c528e5d71f ("net: add rte prefix to IP structure")
Cc: olivier.matz@6wind.com
Cc: stable@dpdk.org
Signed-off-by: Pu Xu <583493798@qq.com>
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 33 +++++++++++++--------
1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..ee0049e09 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,21 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) * RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +109,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +131,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +183,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
@ 2020-05-01 13:27 Pu Xu
2020-05-01 15:32 ` Ananyev, Konstantin
0 siblings, 1 reply; 15+ messages in thread
From: Pu Xu @ 2020-05-01 13:27 UTC (permalink / raw)
To: konstantin.ananyev; +Cc: dev, Pu Xu, olivier.matz, stable
When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
Fixes: a7c528e5d71f ("net: add rte prefix to IP structure")
Cc: olivier.matz@6wind.com
Cc: stable@dpdk.org
Signed-off-by: Pu Xu <583493798@qq.com>
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 33 +++++++++++++--------
1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..ee0049e09 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,21 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) * RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +109,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +131,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +183,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
2020-05-01 13:27 Pu Xu
@ 2020-05-01 15:32 ` Ananyev, Konstantin
0 siblings, 0 replies; 15+ messages in thread
From: Ananyev, Konstantin @ 2020-05-01 15:32 UTC (permalink / raw)
To: Pu Xu; +Cc: dev, olivier.matz, stable
Hi,
> When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct
> rte_ipv4_hdr).
There are few checkpatch errro/warnings:
http://mails.dpdk.org/archives/test-report/2020-May/129803.html
please fix.
>
> Fixes: a7c528e5d71f ("net: add rte prefix to IP structure")
AFAIK, this commit didn't change anything in ip_frag code.
It was just a mechanic renaming for some public structs.
Commit-id that you provided in your previous patch version
Seems more relevant.
With these things fixed:
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> Cc: olivier.matz@6wind.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Pu Xu <583493798@qq.com>
> ---
> lib/librte_ip_frag/rte_ipv4_fragmentation.c | 33 +++++++++++++--------
> 1 file changed, 20 insertions(+), 13 deletions(-)
>
> diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> index e9de335ae..ee0049e09 100644
> --- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> +++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> @@ -23,10 +23,10 @@
> #define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
>
> static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
> - const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
> - uint16_t dofs, uint32_t mf)
> + const struct rte_ipv4_hdr *src, uint16_t header_len,
> + uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
> {
> - rte_memcpy(dst, src, sizeof(*dst));
> + rte_memcpy(dst, src, header_len);
> fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
> fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
> dst->fragment_offset = rte_cpu_to_be_16(fofs);
> @@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> struct rte_ipv4_hdr *in_hdr;
> uint32_t out_pkt_pos, in_seg_data_pos;
> uint32_t more_in_segs;
> - uint16_t fragment_offset, flag_offset, frag_size;
> + uint16_t fragment_offset, flag_offset, frag_size, header_len;
> uint16_t frag_bytes_remaining;
>
> /*
> @@ -86,14 +86,21 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> unlikely(mtu_size < RTE_ETHER_MIN_MTU))
> return -EINVAL;
>
> + in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
> + header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) * RTE_IPV4_IHL_MULTIPLIER;
> +
> + /* Check IP header length */
> + if (unlikely(pkt_in->data_len < header_len) ||
> + unlikely(mtu_size < header_len))
> + return -EINVAL;
> +
> /*
> * Ensure the IP payload length of all fragments is aligned to a
> * multiple of 8 bytes as per RFC791 section 2.3.
> */
> - frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
> + frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
> IPV4_HDR_FO_ALIGN);
>
> - in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
> flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
>
> /* If Don't Fragment flag is set */
> @@ -102,11 +109,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>
> /* Check that pkts_out is big enough to hold all fragments */
> if (unlikely(frag_size * nb_pkts_out <
> - (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
> + (uint16_t)(pkt_in->pkt_len - header_len)))
> return -EINVAL;
>
> in_seg = pkt_in;
> - in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
> + in_seg_data_pos = header_len;
> out_pkt_pos = 0;
> fragment_offset = 0;
>
> @@ -124,8 +131,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> }
>
> /* Reserve space for the IP header that will be built later */
> - out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
> - out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
> + out_pkt->data_len = header_len;
> + out_pkt->pkt_len = header_len;
> frag_bytes_remaining = frag_size;
>
> out_seg_prev = out_pkt;
> @@ -176,14 +183,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>
> out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
>
> - __fill_ipv4hdr_frag(out_hdr, in_hdr,
> + __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
> (uint16_t)out_pkt->pkt_len,
> flag_offset, fragment_offset, more_in_segs);
>
> fragment_offset = (uint16_t)(fragment_offset +
> - out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
> + out_pkt->pkt_len - header_len);
>
> - out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
> + out_pkt->l3_len = header_len;
>
> /* Write the fragment to the output list */
> pkts_out[out_pkt_pos] = out_pkt;
> --
> 2.17.0
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
@ 2020-05-01 0:12 Pu Xu
2020-05-01 10:58 ` Ananyev, Konstantin
0 siblings, 1 reply; 15+ messages in thread
From: Pu Xu @ 2020-05-01 0:12 UTC (permalink / raw)
To: konstantin.ananyev; +Cc: dev, Pu Xu, olivier.matz, stable
When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr).
Fixes: a7c528e5d71f ("net: add rte prefix to IP structure")
Cc: olivier.matz@6wind.com
Cc: stable@dpdk.org
Signed-off-by: Pu Xu <583493798@qq.com>
---
lib/librte_ip_frag/rte_ipv4_fragmentation.c | 33 +++++++++++++--------
1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
index e9de335ae..ee0049e09 100644
--- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
+++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
@@ -23,10 +23,10 @@
#define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
- const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
- uint16_t dofs, uint32_t mf)
+ const struct rte_ipv4_hdr *src, uint16_t header_len,
+ uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
{
- rte_memcpy(dst, src, sizeof(*dst));
+ rte_memcpy(dst, src, header_len);
fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
dst->fragment_offset = rte_cpu_to_be_16(fofs);
@@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
struct rte_ipv4_hdr *in_hdr;
uint32_t out_pkt_pos, in_seg_data_pos;
uint32_t more_in_segs;
- uint16_t fragment_offset, flag_offset, frag_size;
+ uint16_t fragment_offset, flag_offset, frag_size, header_len;
uint16_t frag_bytes_remaining;
/*
@@ -86,14 +86,21 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
unlikely(mtu_size < RTE_ETHER_MIN_MTU))
return -EINVAL;
+ in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
+ header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) * RTE_IPV4_IHL_MULTIPLIER;
+
+ /* Check IP header length */
+ if (unlikely(pkt_in->data_len < header_len) ||
+ unlikely(mtu_size < header_len))
+ return -EINVAL;
+
/*
* Ensure the IP payload length of all fragments is aligned to a
* multiple of 8 bytes as per RFC791 section 2.3.
*/
- frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
+ frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
IPV4_HDR_FO_ALIGN);
- in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
/* If Don't Fragment flag is set */
@@ -102,11 +109,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
/* Check that pkts_out is big enough to hold all fragments */
if (unlikely(frag_size * nb_pkts_out <
- (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
+ (uint16_t)(pkt_in->pkt_len - header_len)))
return -EINVAL;
in_seg = pkt_in;
- in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
+ in_seg_data_pos = header_len;
out_pkt_pos = 0;
fragment_offset = 0;
@@ -124,8 +131,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
}
/* Reserve space for the IP header that will be built later */
- out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
- out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->data_len = header_len;
+ out_pkt->pkt_len = header_len;
frag_bytes_remaining = frag_size;
out_seg_prev = out_pkt;
@@ -176,14 +183,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
- __fill_ipv4hdr_frag(out_hdr, in_hdr,
+ __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
(uint16_t)out_pkt->pkt_len,
flag_offset, fragment_offset, more_in_segs);
fragment_offset = (uint16_t)(fragment_offset +
- out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
+ out_pkt->pkt_len - header_len);
- out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
+ out_pkt->l3_len = header_len;
/* Write the fragment to the output list */
pkts_out[out_pkt_pos] = out_pkt;
--
2.17.0
^ permalink raw reply [flat|nested] 15+ messages in thread* Re: [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option
2020-05-01 0:12 Pu Xu
@ 2020-05-01 10:58 ` Ananyev, Konstantin
0 siblings, 0 replies; 15+ messages in thread
From: Ananyev, Konstantin @ 2020-05-01 10:58 UTC (permalink / raw)
To: Pu Xu; +Cc: dev, thomas
>
> When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct
> rte_ipv4_hdr).
Patch looks good to me...
Though by some reason I couldn't find it at DPDK patchwork...
http://patches.dpdk.org/project/dpdk/list/
Did you register at dev@dpdk.org?
>
> Fixes: a7c528e5d71f ("net: add rte prefix to IP structure")
> Cc: olivier.matz@6wind.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Pu Xu <583493798@qq.com>
> ---
> lib/librte_ip_frag/rte_ipv4_fragmentation.c | 33 +++++++++++++--------
> 1 file changed, 20 insertions(+), 13 deletions(-)
>
> diff --git a/lib/librte_ip_frag/rte_ipv4_fragmentation.c b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> index e9de335ae..ee0049e09 100644
> --- a/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> +++ b/lib/librte_ip_frag/rte_ipv4_fragmentation.c
> @@ -23,10 +23,10 @@
> #define IPV4_HDR_FO_ALIGN (1 << RTE_IPV4_HDR_FO_SHIFT)
>
> static inline void __fill_ipv4hdr_frag(struct rte_ipv4_hdr *dst,
> - const struct rte_ipv4_hdr *src, uint16_t len, uint16_t fofs,
> - uint16_t dofs, uint32_t mf)
> + const struct rte_ipv4_hdr *src, uint16_t header_len,
> + uint16_t len, uint16_t fofs, uint16_t dofs, uint32_t mf)
> {
> - rte_memcpy(dst, src, sizeof(*dst));
> + rte_memcpy(dst, src, header_len);
> fofs = (uint16_t)(fofs + (dofs >> RTE_IPV4_HDR_FO_SHIFT));
> fofs = (uint16_t)(fofs | mf << RTE_IPV4_HDR_MF_SHIFT);
> dst->fragment_offset = rte_cpu_to_be_16(fofs);
> @@ -74,7 +74,7 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> struct rte_ipv4_hdr *in_hdr;
> uint32_t out_pkt_pos, in_seg_data_pos;
> uint32_t more_in_segs;
> - uint16_t fragment_offset, flag_offset, frag_size;
> + uint16_t fragment_offset, flag_offset, frag_size, header_len;
> uint16_t frag_bytes_remaining;
>
> /*
> @@ -86,14 +86,21 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> unlikely(mtu_size < RTE_ETHER_MIN_MTU))
> return -EINVAL;
>
> + in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
> + header_len = (in_hdr->version_ihl & RTE_IPV4_HDR_IHL_MASK) * RTE_IPV4_IHL_MULTIPLIER;
> +
> + /* Check IP header length */
> + if (unlikely(pkt_in->data_len < header_len) ||
> + unlikely(mtu_size < header_len))
> + return -EINVAL;
> +
> /*
> * Ensure the IP payload length of all fragments is aligned to a
> * multiple of 8 bytes as per RFC791 section 2.3.
> */
> - frag_size = RTE_ALIGN_FLOOR((mtu_size - sizeof(struct rte_ipv4_hdr)),
> + frag_size = RTE_ALIGN_FLOOR((mtu_size - header_len),
> IPV4_HDR_FO_ALIGN);
>
> - in_hdr = rte_pktmbuf_mtod(pkt_in, struct rte_ipv4_hdr *);
> flag_offset = rte_cpu_to_be_16(in_hdr->fragment_offset);
>
> /* If Don't Fragment flag is set */
> @@ -102,11 +109,11 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>
> /* Check that pkts_out is big enough to hold all fragments */
> if (unlikely(frag_size * nb_pkts_out <
> - (uint16_t)(pkt_in->pkt_len - sizeof(struct rte_ipv4_hdr))))
> + (uint16_t)(pkt_in->pkt_len - header_len)))
> return -EINVAL;
>
> in_seg = pkt_in;
> - in_seg_data_pos = sizeof(struct rte_ipv4_hdr);
> + in_seg_data_pos = header_len;
> out_pkt_pos = 0;
> fragment_offset = 0;
>
> @@ -124,8 +131,8 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
> }
>
> /* Reserve space for the IP header that will be built later */
> - out_pkt->data_len = sizeof(struct rte_ipv4_hdr);
> - out_pkt->pkt_len = sizeof(struct rte_ipv4_hdr);
> + out_pkt->data_len = header_len;
> + out_pkt->pkt_len = header_len;
> frag_bytes_remaining = frag_size;
>
> out_seg_prev = out_pkt;
> @@ -176,14 +183,14 @@ rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
>
> out_hdr = rte_pktmbuf_mtod(out_pkt, struct rte_ipv4_hdr *);
>
> - __fill_ipv4hdr_frag(out_hdr, in_hdr,
> + __fill_ipv4hdr_frag(out_hdr, in_hdr, header_len,
> (uint16_t)out_pkt->pkt_len,
> flag_offset, fragment_offset, more_in_segs);
>
> fragment_offset = (uint16_t)(fragment_offset +
> - out_pkt->pkt_len - sizeof(struct rte_ipv4_hdr));
> + out_pkt->pkt_len - header_len);
>
> - out_pkt->l3_len = sizeof(struct rte_ipv4_hdr);
> + out_pkt->l3_len = header_len;
>
> /* Write the fragment to the output list */
> pkts_out[out_pkt_pos] = out_pkt;
> --
> 2.17.0
>
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2021-04-21 14:50 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-01 16:16 [dpdk-dev] [PATCH] ip_frag: fix fragmenting ipv4 packet with header option Pu Xu
2021-03-25 10:48 ` [dpdk-dev] [PATCH v2] When fragmenting ipv4 packet, the data offset should be calculated through the ihl field in ip header rather than using sizeof(struct rte_ipv4_hdr) 583493798
2021-03-25 11:11 ` [dpdk-dev] [PATCH v2] ip_frag: fix fragmenting ipv4 packet with header option 583493798
2021-03-25 13:09 ` Aaron Conole
2021-04-06 13:53 ` Ananyev, Konstantin
2021-04-21 14:50 ` Thomas Monjalon
-- strict thread matches above, loose matches on Subject: below --
2020-05-01 16:11 [dpdk-dev] [PATCH] " Pu Xu
2020-05-01 20:43 ` Ananyev, Konstantin
2020-05-24 15:27 ` Thomas Monjalon
2021-03-24 21:30 ` Thomas Monjalon
2020-05-01 13:50 Pu Xu
2020-05-01 13:27 Pu Xu
2020-05-01 15:32 ` Ananyev, Konstantin
2020-05-01 0:12 Pu Xu
2020-05-01 10:58 ` Ananyev, Konstantin
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