* [PATCH net-next v2 1/4] ipv6: ioam: Distinguish input and output for hop-limit
2021-10-03 18:45 [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM Justin Iurman
@ 2021-10-03 18:45 ` Justin Iurman
2021-10-03 18:45 ` [PATCH net-next v2 2/4] ipv6: ioam: Prerequisite patch for ioam6_iptunnel Justin Iurman
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Justin Iurman @ 2021-10-03 18:45 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, yoshfuji, dsahern, justin.iurman
This patch anticipates the support for the IOAM insertion inside in-transit
packets, by making a difference between input and output in order to determine
the right value for its hop-limit (inherited from the IPv6 hop-limit).
Input case: happens before ip6_forward, the IPv6 hop-limit is not decremented
yet -> decrement the IOAM hop-limit to reflect the new hop inside the trace.
Output case: happens after ip6_forward, the IPv6 hop-limit has already been
decremented -> keep the same value for the IOAM hop-limit.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
---
include/net/ioam6.h | 3 ++-
net/ipv6/exthdrs.c | 2 +-
net/ipv6/ioam6.c | 11 ++++++-----
3 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/include/net/ioam6.h b/include/net/ioam6.h
index 3c2993bc48c8..3f45ba37a2c6 100644
--- a/include/net/ioam6.h
+++ b/include/net/ioam6.h
@@ -56,7 +56,8 @@ static inline struct ioam6_pernet_data *ioam6_pernet(struct net *net)
struct ioam6_namespace *ioam6_namespace(struct net *net, __be16 id);
void ioam6_fill_trace_data(struct sk_buff *skb,
struct ioam6_namespace *ns,
- struct ioam6_trace_hdr *trace);
+ struct ioam6_trace_hdr *trace,
+ bool is_input);
int ioam6_init(void);
void ioam6_exit(void);
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 3a871a09f962..38ece3b7b839 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -979,7 +979,7 @@ static bool ipv6_hop_ioam(struct sk_buff *skb, int optoff)
if (!skb_valid_dst(skb))
ip6_route_input(skb);
- ioam6_fill_trace_data(skb, ns, trace);
+ ioam6_fill_trace_data(skb, ns, trace, true);
break;
default:
break;
diff --git a/net/ipv6/ioam6.c b/net/ipv6/ioam6.c
index 5e8961004832..4e5583dbadac 100644
--- a/net/ipv6/ioam6.c
+++ b/net/ipv6/ioam6.c
@@ -631,7 +631,7 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,
struct ioam6_namespace *ns,
struct ioam6_trace_hdr *trace,
struct ioam6_schema *sc,
- u8 sclen)
+ u8 sclen, bool is_input)
{
struct __kernel_sock_timeval ts;
u64 raw64;
@@ -645,7 +645,7 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,
/* hop_lim and node_id */
if (trace->type.bit0) {
byte = ipv6_hdr(skb)->hop_limit;
- if (skb->dev)
+ if (is_input)
byte--;
raw32 = dev_net(skb_dst(skb)->dev)->ipv6.sysctl.ioam6_id;
@@ -730,7 +730,7 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,
/* hop_lim and node_id (wide) */
if (trace->type.bit8) {
byte = ipv6_hdr(skb)->hop_limit;
- if (skb->dev)
+ if (is_input)
byte--;
raw64 = dev_net(skb_dst(skb)->dev)->ipv6.sysctl.ioam6_id_wide;
@@ -786,7 +786,8 @@ static void __ioam6_fill_trace_data(struct sk_buff *skb,
/* called with rcu_read_lock() */
void ioam6_fill_trace_data(struct sk_buff *skb,
struct ioam6_namespace *ns,
- struct ioam6_trace_hdr *trace)
+ struct ioam6_trace_hdr *trace,
+ bool is_input)
{
struct ioam6_schema *sc;
u8 sclen = 0;
@@ -822,7 +823,7 @@ void ioam6_fill_trace_data(struct sk_buff *skb,
return;
}
- __ioam6_fill_trace_data(skb, ns, trace, sc, sclen);
+ __ioam6_fill_trace_data(skb, ns, trace, sc, sclen, is_input);
trace->remlen -= trace->nodelen + sclen;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH net-next v2 2/4] ipv6: ioam: Prerequisite patch for ioam6_iptunnel
2021-10-03 18:45 [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM Justin Iurman
2021-10-03 18:45 ` [PATCH net-next v2 1/4] ipv6: ioam: Distinguish input and output for hop-limit Justin Iurman
@ 2021-10-03 18:45 ` Justin Iurman
2021-10-03 18:45 ` [PATCH net-next v2 3/4] ipv6: ioam: Add support for the ip6ip6 encapsulation Justin Iurman
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Justin Iurman @ 2021-10-03 18:45 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, yoshfuji, dsahern, justin.iurman
This prerequisite patch provides some minor edits (alignments, renames) and a
minor modification inside a function to facilitate the next patch by using
existing nla_* functions.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
---
net/ipv6/ioam6_iptunnel.c | 55 ++++++++++++++-------------------------
1 file changed, 20 insertions(+), 35 deletions(-)
diff --git a/net/ipv6/ioam6_iptunnel.c b/net/ipv6/ioam6_iptunnel.c
index f9ee04541c17..5d03101724b9 100644
--- a/net/ipv6/ioam6_iptunnel.c
+++ b/net/ipv6/ioam6_iptunnel.c
@@ -9,7 +9,6 @@
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/net.h>
-#include <linux/netlink.h>
#include <linux/in6.h>
#include <linux/ioam6.h>
#include <linux/ioam6_iptunnel.h>
@@ -17,15 +16,16 @@
#include <net/sock.h>
#include <net/lwtunnel.h>
#include <net/ioam6.h>
+#include <net/netlink.h>
#define IOAM6_MASK_SHORT_FIELDS 0xff100000
#define IOAM6_MASK_WIDE_FIELDS 0xe00000
struct ioam6_lwt_encap {
- struct ipv6_hopopt_hdr eh;
- u8 pad[2]; /* 2-octet padding for 4n-alignment */
- struct ioam6_hdr ioamh;
- struct ioam6_trace_hdr traceh;
+ struct ipv6_hopopt_hdr eh;
+ u8 pad[2]; /* 2-octet padding for 4n-alignment */
+ struct ioam6_hdr ioamh;
+ struct ioam6_trace_hdr traceh;
} __packed;
struct ioam6_lwt {
@@ -42,7 +42,7 @@ static struct ioam6_lwt_encap *ioam6_lwt_info(struct lwtunnel_state *lwt)
return &ioam6_lwt_state(lwt)->tuninfo;
}
-static struct ioam6_trace_hdr *ioam6_trace(struct lwtunnel_state *lwt)
+static struct ioam6_trace_hdr *ioam6_lwt_trace(struct lwtunnel_state *lwt)
{
return &(ioam6_lwt_state(lwt)->tuninfo.traceh);
}
@@ -51,25 +51,6 @@ static const struct nla_policy ioam6_iptunnel_policy[IOAM6_IPTUNNEL_MAX + 1] = {
[IOAM6_IPTUNNEL_TRACE] = NLA_POLICY_EXACT_LEN(sizeof(struct ioam6_trace_hdr)),
};
-static int nla_put_ioam6_trace(struct sk_buff *skb, int attrtype,
- struct ioam6_trace_hdr *trace)
-{
- struct ioam6_trace_hdr *data;
- struct nlattr *nla;
- int len;
-
- len = sizeof(*trace);
-
- nla = nla_reserve(skb, attrtype, len);
- if (!nla)
- return -EMSGSIZE;
-
- data = nla_data(nla);
- memcpy(data, trace, len);
-
- return 0;
-}
-
static bool ioam6_validate_trace_hdr(struct ioam6_trace_hdr *trace)
{
u32 fields;
@@ -231,36 +212,40 @@ static int ioam6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
static int ioam6_fill_encap_info(struct sk_buff *skb,
struct lwtunnel_state *lwtstate)
{
- struct ioam6_trace_hdr *trace = ioam6_trace(lwtstate);
+ struct ioam6_trace_hdr *trace;
+ int err;
- if (nla_put_ioam6_trace(skb, IOAM6_IPTUNNEL_TRACE, trace))
- return -EMSGSIZE;
+ trace = ioam6_lwt_trace(lwtstate);
+
+ err = nla_put(skb, IOAM6_IPTUNNEL_TRACE, sizeof(*trace), trace);
+ if (err)
+ return err;
return 0;
}
static int ioam6_encap_nlsize(struct lwtunnel_state *lwtstate)
{
- struct ioam6_trace_hdr *trace = ioam6_trace(lwtstate);
+ struct ioam6_trace_hdr *trace = ioam6_lwt_trace(lwtstate);
return nla_total_size(sizeof(*trace));
}
static int ioam6_encap_cmp(struct lwtunnel_state *a, struct lwtunnel_state *b)
{
- struct ioam6_trace_hdr *a_hdr = ioam6_trace(a);
- struct ioam6_trace_hdr *b_hdr = ioam6_trace(b);
+ struct ioam6_trace_hdr *a_hdr = ioam6_lwt_trace(a);
+ struct ioam6_trace_hdr *b_hdr = ioam6_lwt_trace(b);
return (a_hdr->namespace_id != b_hdr->namespace_id);
}
static const struct lwtunnel_encap_ops ioam6_iptun_ops = {
- .build_state = ioam6_build_state,
+ .build_state = ioam6_build_state,
.output = ioam6_output,
- .fill_encap = ioam6_fill_encap_info,
+ .fill_encap = ioam6_fill_encap_info,
.get_encap_size = ioam6_encap_nlsize,
- .cmp_encap = ioam6_encap_cmp,
- .owner = THIS_MODULE,
+ .cmp_encap = ioam6_encap_cmp,
+ .owner = THIS_MODULE,
};
int __init ioam6_iptunnel_init(void)
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH net-next v2 3/4] ipv6: ioam: Add support for the ip6ip6 encapsulation
2021-10-03 18:45 [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM Justin Iurman
2021-10-03 18:45 ` [PATCH net-next v2 1/4] ipv6: ioam: Distinguish input and output for hop-limit Justin Iurman
2021-10-03 18:45 ` [PATCH net-next v2 2/4] ipv6: ioam: Prerequisite patch for ioam6_iptunnel Justin Iurman
@ 2021-10-03 18:45 ` Justin Iurman
2021-10-03 18:45 ` [PATCH net-next v2 4/4] selftests: net: Test for the IOAM encapsulation with IPv6 Justin Iurman
2021-10-04 12:20 ` [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM patchwork-bot+netdevbpf
4 siblings, 0 replies; 6+ messages in thread
From: Justin Iurman @ 2021-10-03 18:45 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, yoshfuji, dsahern, justin.iurman
This patch adds support for the ip6ip6 encapsulation by providing three encap
modes: inline, encap and auto.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
---
include/uapi/linux/ioam6_iptunnel.h | 29 ++++
net/ipv6/Kconfig | 6 +-
net/ipv6/ioam6_iptunnel.c | 261 ++++++++++++++++++++++------
3 files changed, 242 insertions(+), 54 deletions(-)
diff --git a/include/uapi/linux/ioam6_iptunnel.h b/include/uapi/linux/ioam6_iptunnel.h
index bae14636a8c8..829ffdfcacca 100644
--- a/include/uapi/linux/ioam6_iptunnel.h
+++ b/include/uapi/linux/ioam6_iptunnel.h
@@ -9,9 +9,38 @@
#ifndef _UAPI_LINUX_IOAM6_IPTUNNEL_H
#define _UAPI_LINUX_IOAM6_IPTUNNEL_H
+/* Encap modes:
+ * - inline: direct insertion
+ * - encap: ip6ip6 encapsulation
+ * - auto: inline for local packets, encap for in-transit packets
+ */
+enum {
+ __IOAM6_IPTUNNEL_MODE_MIN,
+
+ IOAM6_IPTUNNEL_MODE_INLINE,
+ IOAM6_IPTUNNEL_MODE_ENCAP,
+ IOAM6_IPTUNNEL_MODE_AUTO,
+
+ __IOAM6_IPTUNNEL_MODE_MAX,
+};
+
+#define IOAM6_IPTUNNEL_MODE_MIN (__IOAM6_IPTUNNEL_MODE_MIN + 1)
+#define IOAM6_IPTUNNEL_MODE_MAX (__IOAM6_IPTUNNEL_MODE_MAX - 1)
+
enum {
IOAM6_IPTUNNEL_UNSPEC,
+
+ /* Encap mode */
+ IOAM6_IPTUNNEL_MODE, /* u8 */
+
+ /* Tunnel dst address.
+ * For encap,auto modes.
+ */
+ IOAM6_IPTUNNEL_DST, /* struct in6_addr */
+
+ /* IOAM Trace Header */
IOAM6_IPTUNNEL_TRACE, /* struct ioam6_trace_hdr */
+
__IOAM6_IPTUNNEL_MAX,
};
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index e504204bca92..bf2e5e5fe142 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -332,10 +332,10 @@ config IPV6_IOAM6_LWTUNNEL
bool "IPv6: IOAM Pre-allocated Trace insertion support"
depends on IPV6
select LWTUNNEL
+ select DST_CACHE
help
- Support for the inline insertion of IOAM Pre-allocated
- Trace Header (only on locally generated packets), using
- the lightweight tunnels mechanism.
+ Support for the insertion of IOAM Pre-allocated Trace
+ Header using the lightweight tunnels mechanism.
If unsure, say N.
diff --git a/net/ipv6/ioam6_iptunnel.c b/net/ipv6/ioam6_iptunnel.c
index 5d03101724b9..392c183076ce 100644
--- a/net/ipv6/ioam6_iptunnel.c
+++ b/net/ipv6/ioam6_iptunnel.c
@@ -17,6 +17,10 @@
#include <net/lwtunnel.h>
#include <net/ioam6.h>
#include <net/netlink.h>
+#include <net/ipv6.h>
+#include <net/dst_cache.h>
+#include <net/ip6_route.h>
+#include <net/addrconf.h>
#define IOAM6_MASK_SHORT_FIELDS 0xff100000
#define IOAM6_MASK_WIDE_FIELDS 0xe00000
@@ -29,6 +33,9 @@ struct ioam6_lwt_encap {
} __packed;
struct ioam6_lwt {
+ struct dst_cache cache;
+ u8 mode;
+ struct in6_addr tundst;
struct ioam6_lwt_encap tuninfo;
};
@@ -48,6 +55,10 @@ static struct ioam6_trace_hdr *ioam6_lwt_trace(struct lwtunnel_state *lwt)
}
static const struct nla_policy ioam6_iptunnel_policy[IOAM6_IPTUNNEL_MAX + 1] = {
+ [IOAM6_IPTUNNEL_MODE] = NLA_POLICY_RANGE(NLA_U8,
+ IOAM6_IPTUNNEL_MODE_MIN,
+ IOAM6_IPTUNNEL_MODE_MAX),
+ [IOAM6_IPTUNNEL_DST] = NLA_POLICY_EXACT_LEN(sizeof(struct in6_addr)),
[IOAM6_IPTUNNEL_TRACE] = NLA_POLICY_EXACT_LEN(sizeof(struct ioam6_trace_hdr)),
};
@@ -78,9 +89,10 @@ static int ioam6_build_state(struct net *net, struct nlattr *nla,
struct nlattr *tb[IOAM6_IPTUNNEL_MAX + 1];
struct ioam6_lwt_encap *tuninfo;
struct ioam6_trace_hdr *trace;
- struct lwtunnel_state *s;
- int len_aligned;
- int len, err;
+ struct lwtunnel_state *lwt;
+ struct ioam6_lwt *ilwt;
+ int len_aligned, err;
+ u8 mode;
if (family != AF_INET6)
return -EINVAL;
@@ -90,6 +102,16 @@ static int ioam6_build_state(struct net *net, struct nlattr *nla,
if (err < 0)
return err;
+ if (!tb[IOAM6_IPTUNNEL_MODE])
+ mode = IOAM6_IPTUNNEL_MODE_INLINE;
+ else
+ mode = nla_get_u8(tb[IOAM6_IPTUNNEL_MODE]);
+
+ if (!tb[IOAM6_IPTUNNEL_DST] && mode != IOAM6_IPTUNNEL_MODE_INLINE) {
+ NL_SET_ERR_MSG(extack, "this mode needs a tunnel destination");
+ return -EINVAL;
+ }
+
if (!tb[IOAM6_IPTUNNEL_TRACE]) {
NL_SET_ERR_MSG(extack, "missing trace");
return -EINVAL;
@@ -102,15 +124,24 @@ static int ioam6_build_state(struct net *net, struct nlattr *nla,
return -EINVAL;
}
- len = sizeof(*tuninfo) + trace->remlen * 4;
- len_aligned = ALIGN(len, 8);
-
- s = lwtunnel_state_alloc(len_aligned);
- if (!s)
+ len_aligned = ALIGN(trace->remlen * 4, 8);
+ lwt = lwtunnel_state_alloc(sizeof(*ilwt) + len_aligned);
+ if (!lwt)
return -ENOMEM;
- tuninfo = ioam6_lwt_info(s);
- tuninfo->eh.hdrlen = (len_aligned >> 3) - 1;
+ ilwt = ioam6_lwt_state(lwt);
+ err = dst_cache_init(&ilwt->cache, GFP_ATOMIC);
+ if (err) {
+ kfree(lwt);
+ return err;
+ }
+
+ ilwt->mode = mode;
+ if (tb[IOAM6_IPTUNNEL_DST])
+ ilwt->tundst = nla_get_in6_addr(tb[IOAM6_IPTUNNEL_DST]);
+
+ tuninfo = ioam6_lwt_info(lwt);
+ tuninfo->eh.hdrlen = ((sizeof(*tuninfo) + len_aligned) >> 3) - 1;
tuninfo->pad[0] = IPV6_TLV_PADN;
tuninfo->ioamh.type = IOAM6_TYPE_PREALLOC;
tuninfo->ioamh.opt_type = IPV6_TLV_IOAM;
@@ -119,27 +150,39 @@ static int ioam6_build_state(struct net *net, struct nlattr *nla,
memcpy(&tuninfo->traceh, trace, sizeof(*trace));
- len = len_aligned - len;
- if (len == 1) {
- tuninfo->traceh.data[trace->remlen * 4] = IPV6_TLV_PAD1;
- } else if (len > 0) {
+ if (len_aligned - trace->remlen * 4) {
tuninfo->traceh.data[trace->remlen * 4] = IPV6_TLV_PADN;
- tuninfo->traceh.data[trace->remlen * 4 + 1] = len - 2;
+ tuninfo->traceh.data[trace->remlen * 4 + 1] = 2;
}
- s->type = LWTUNNEL_ENCAP_IOAM6;
- s->flags |= LWTUNNEL_STATE_OUTPUT_REDIRECT;
+ lwt->type = LWTUNNEL_ENCAP_IOAM6;
+ lwt->flags |= LWTUNNEL_STATE_OUTPUT_REDIRECT;
- *ts = s;
+ *ts = lwt;
return 0;
}
-static int ioam6_do_inline(struct sk_buff *skb, struct ioam6_lwt_encap *tuninfo)
+static int ioam6_do_fill(struct net *net, struct sk_buff *skb)
{
struct ioam6_trace_hdr *trace;
- struct ipv6hdr *oldhdr, *hdr;
struct ioam6_namespace *ns;
+
+ trace = (struct ioam6_trace_hdr *)(skb_transport_header(skb)
+ + sizeof(struct ipv6_hopopt_hdr) + 2
+ + sizeof(struct ioam6_hdr));
+
+ ns = ioam6_namespace(net, trace->namespace_id);
+ if (ns)
+ ioam6_fill_trace_data(skb, ns, trace, false);
+
+ return 0;
+}
+
+static int ioam6_do_inline(struct net *net, struct sk_buff *skb,
+ struct ioam6_lwt_encap *tuninfo)
+{
+ struct ipv6hdr *oldhdr, *hdr;
int hdrlen, err;
hdrlen = (tuninfo->eh.hdrlen + 1) << 3;
@@ -168,79 +211,195 @@ static int ioam6_do_inline(struct sk_buff *skb, struct ioam6_lwt_encap *tuninfo)
hdr->nexthdr = NEXTHDR_HOP;
hdr->payload_len = cpu_to_be16(skb->len - sizeof(*hdr));
- trace = (struct ioam6_trace_hdr *)(skb_transport_header(skb)
- + sizeof(struct ipv6_hopopt_hdr) + 2
- + sizeof(struct ioam6_hdr));
+ return ioam6_do_fill(net, skb);
+}
- ns = ioam6_namespace(dev_net(skb_dst(skb)->dev), trace->namespace_id);
- if (ns)
- ioam6_fill_trace_data(skb, ns, trace);
+static int ioam6_do_encap(struct net *net, struct sk_buff *skb,
+ struct ioam6_lwt_encap *tuninfo,
+ struct in6_addr *tundst)
+{
+ struct dst_entry *dst = skb_dst(skb);
+ struct ipv6hdr *hdr, *inner_hdr;
+ int hdrlen, len, err;
- return 0;
+ hdrlen = (tuninfo->eh.hdrlen + 1) << 3;
+ len = sizeof(*hdr) + hdrlen;
+
+ err = skb_cow_head(skb, len + skb->mac_len);
+ if (unlikely(err))
+ return err;
+
+ inner_hdr = ipv6_hdr(skb);
+
+ skb_push(skb, len);
+ skb_reset_network_header(skb);
+ skb_mac_header_rebuild(skb);
+ skb_set_transport_header(skb, sizeof(*hdr));
+
+ tuninfo->eh.nexthdr = NEXTHDR_IPV6;
+ memcpy(skb_transport_header(skb), (u8 *)tuninfo, hdrlen);
+
+ hdr = ipv6_hdr(skb);
+ memcpy(hdr, inner_hdr, sizeof(*hdr));
+
+ hdr->nexthdr = NEXTHDR_HOP;
+ hdr->payload_len = cpu_to_be16(skb->len - sizeof(*hdr));
+ hdr->daddr = *tundst;
+ ipv6_dev_get_saddr(net, dst->dev, &hdr->daddr,
+ IPV6_PREFER_SRC_PUBLIC, &hdr->saddr);
+
+ skb_postpush_rcsum(skb, hdr, len);
+
+ return ioam6_do_fill(net, skb);
}
static int ioam6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- struct lwtunnel_state *lwt = skb_dst(skb)->lwtstate;
+ struct dst_entry *dst = skb_dst(skb);
+ struct in6_addr orig_daddr;
+ struct ioam6_lwt *ilwt;
int err = -EINVAL;
if (skb->protocol != htons(ETH_P_IPV6))
goto drop;
- /* Only for packets we send and
- * that do not contain a Hop-by-Hop yet
- */
- if (skb->dev || ipv6_hdr(skb)->nexthdr == NEXTHDR_HOP)
- goto out;
-
- err = ioam6_do_inline(skb, ioam6_lwt_info(lwt));
- if (unlikely(err))
+ ilwt = ioam6_lwt_state(dst->lwtstate);
+ orig_daddr = ipv6_hdr(skb)->daddr;
+
+ switch (ilwt->mode) {
+ case IOAM6_IPTUNNEL_MODE_INLINE:
+do_inline:
+ /* Direct insertion - if there is no Hop-by-Hop yet */
+ if (ipv6_hdr(skb)->nexthdr == NEXTHDR_HOP)
+ goto out;
+
+ err = ioam6_do_inline(net, skb, &ilwt->tuninfo);
+ if (unlikely(err))
+ goto drop;
+
+ break;
+ case IOAM6_IPTUNNEL_MODE_ENCAP:
+do_encap:
+ /* Encapsulation (ip6ip6) */
+ err = ioam6_do_encap(net, skb, &ilwt->tuninfo, &ilwt->tundst);
+ if (unlikely(err))
+ goto drop;
+
+ break;
+ case IOAM6_IPTUNNEL_MODE_AUTO:
+ /* Automatic (RFC8200 compliant):
+ * - local packets -> INLINE mode
+ * - in-transit packets -> ENCAP mode
+ */
+ if (!skb->dev)
+ goto do_inline;
+
+ goto do_encap;
+ default:
goto drop;
+ }
- err = skb_cow_head(skb, LL_RESERVED_SPACE(skb_dst(skb)->dev));
+ err = skb_cow_head(skb, LL_RESERVED_SPACE(dst->dev));
if (unlikely(err))
goto drop;
+ if (!ipv6_addr_equal(&orig_daddr, &ipv6_hdr(skb)->daddr)) {
+ preempt_disable();
+ dst = dst_cache_get(&ilwt->cache);
+ preempt_enable();
+
+ if (unlikely(!dst)) {
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
+ struct flowi6 fl6;
+
+ memset(&fl6, 0, sizeof(fl6));
+ fl6.daddr = hdr->daddr;
+ fl6.saddr = hdr->saddr;
+ fl6.flowlabel = ip6_flowinfo(hdr);
+ fl6.flowi6_mark = skb->mark;
+ fl6.flowi6_proto = hdr->nexthdr;
+
+ dst = ip6_route_output(net, NULL, &fl6);
+ if (dst->error) {
+ err = dst->error;
+ dst_release(dst);
+ goto drop;
+ }
+
+ preempt_disable();
+ dst_cache_set_ip6(&ilwt->cache, dst, &fl6.saddr);
+ preempt_enable();
+ }
+
+ skb_dst_drop(skb);
+ skb_dst_set(skb, dst);
+
+ return dst_output(net, sk, skb);
+ }
out:
- return lwt->orig_output(net, sk, skb);
-
+ return dst->lwtstate->orig_output(net, sk, skb);
drop:
kfree_skb(skb);
return err;
}
+static void ioam6_destroy_state(struct lwtunnel_state *lwt)
+{
+ dst_cache_destroy(&ioam6_lwt_state(lwt)->cache);
+}
+
static int ioam6_fill_encap_info(struct sk_buff *skb,
struct lwtunnel_state *lwtstate)
{
- struct ioam6_trace_hdr *trace;
+ struct ioam6_lwt *ilwt = ioam6_lwt_state(lwtstate);
int err;
- trace = ioam6_lwt_trace(lwtstate);
-
- err = nla_put(skb, IOAM6_IPTUNNEL_TRACE, sizeof(*trace), trace);
+ err = nla_put_u8(skb, IOAM6_IPTUNNEL_MODE, ilwt->mode);
if (err)
- return err;
+ goto ret;
- return 0;
+ if (ilwt->mode != IOAM6_IPTUNNEL_MODE_INLINE) {
+ err = nla_put_in6_addr(skb, IOAM6_IPTUNNEL_DST, &ilwt->tundst);
+ if (err)
+ goto ret;
+ }
+
+ err = nla_put(skb, IOAM6_IPTUNNEL_TRACE, sizeof(ilwt->tuninfo.traceh),
+ &ilwt->tuninfo.traceh);
+ret:
+ return err;
}
static int ioam6_encap_nlsize(struct lwtunnel_state *lwtstate)
{
- struct ioam6_trace_hdr *trace = ioam6_lwt_trace(lwtstate);
+ struct ioam6_lwt *ilwt = ioam6_lwt_state(lwtstate);
+ int nlsize;
+
+ nlsize = nla_total_size(sizeof(ilwt->mode)) +
+ nla_total_size(sizeof(ilwt->tuninfo.traceh));
- return nla_total_size(sizeof(*trace));
+ if (ilwt->mode != IOAM6_IPTUNNEL_MODE_INLINE)
+ nlsize += nla_total_size(sizeof(ilwt->tundst));
+
+ return nlsize;
}
static int ioam6_encap_cmp(struct lwtunnel_state *a, struct lwtunnel_state *b)
{
- struct ioam6_trace_hdr *a_hdr = ioam6_lwt_trace(a);
- struct ioam6_trace_hdr *b_hdr = ioam6_lwt_trace(b);
-
- return (a_hdr->namespace_id != b_hdr->namespace_id);
+ struct ioam6_trace_hdr *trace_a = ioam6_lwt_trace(a);
+ struct ioam6_trace_hdr *trace_b = ioam6_lwt_trace(b);
+ struct ioam6_lwt *ilwt_a = ioam6_lwt_state(a);
+ struct ioam6_lwt *ilwt_b = ioam6_lwt_state(b);
+
+ return (ilwt_a->mode != ilwt_b->mode ||
+ (ilwt_a->mode != IOAM6_IPTUNNEL_MODE_INLINE &&
+ !ipv6_addr_equal(&ilwt_a->tundst, &ilwt_b->tundst)) ||
+ trace_a->namespace_id != trace_b->namespace_id);
}
static const struct lwtunnel_encap_ops ioam6_iptun_ops = {
.build_state = ioam6_build_state,
+ .destroy_state = ioam6_destroy_state,
.output = ioam6_output,
.fill_encap = ioam6_fill_encap_info,
.get_encap_size = ioam6_encap_nlsize,
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH net-next v2 4/4] selftests: net: Test for the IOAM encapsulation with IPv6
2021-10-03 18:45 [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM Justin Iurman
` (2 preceding siblings ...)
2021-10-03 18:45 ` [PATCH net-next v2 3/4] ipv6: ioam: Add support for the ip6ip6 encapsulation Justin Iurman
@ 2021-10-03 18:45 ` Justin Iurman
2021-10-04 12:20 ` [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM patchwork-bot+netdevbpf
4 siblings, 0 replies; 6+ messages in thread
From: Justin Iurman @ 2021-10-03 18:45 UTC (permalink / raw)
To: netdev; +Cc: davem, kuba, yoshfuji, dsahern, justin.iurman
This patch adds support for testing the encap (ip6ip6) mode of IOAM.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
---
tools/testing/selftests/net/ioam6.sh | 209 ++++++++++++++++++++-------
1 file changed, 159 insertions(+), 50 deletions(-)
diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh
index 3caf72bb9c6a..90700303d8a9 100755
--- a/tools/testing/selftests/net/ioam6.sh
+++ b/tools/testing/selftests/net/ioam6.sh
@@ -6,7 +6,7 @@
# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data
# consistency directly inside packets on the receiver side. Tests are divided
# into three categories: OUTPUT (evaluates the IOAM processing by the sender),
-# INPUT (evaluates the IOAM processing by the receiver) and GLOBAL (evaluates
+# INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates
# wider use cases that do not fall into the other two categories). Both OUTPUT
# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL
# tests use the entire three-node topology (alpha, beta, gamma). Each test is
@@ -200,7 +200,7 @@ check_kernel_compatibility()
ip -netns ioam-tmp-node link set veth0 up
ip -netns ioam-tmp-node link set veth1 up
- ip -netns ioam-tmp-node ioam namespace add 0 &>/dev/null
+ ip -netns ioam-tmp-node ioam namespace add 0
ns_ad=$?
ip -netns ioam-tmp-node ioam namespace show | grep -q "namespace 0"
@@ -214,11 +214,11 @@ check_kernel_compatibility()
exit 1
fi
- ip -netns ioam-tmp-node route add db02::/64 encap ioam6 trace prealloc \
- type 0x800000 ns 0 size 4 dev veth0 &>/dev/null
+ ip -netns ioam-tmp-node route add db02::/64 encap ioam6 mode inline \
+ trace prealloc type 0x800000 ns 0 size 4 dev veth0
tr_ad=$?
- ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6 trace"
+ ip -netns ioam-tmp-node -6 route | grep -q "encap ioam6"
tr_sh=$?
if [[ $tr_ad != 0 || $tr_sh != 0 ]]
@@ -232,6 +232,30 @@ check_kernel_compatibility()
ip link del veth0 2>/dev/null || true
ip netns del ioam-tmp-node || true
+
+ lsmod | grep -q "ip6_tunnel"
+ ip6tnl_loaded=$?
+
+ if [ $ip6tnl_loaded = 0 ]
+ then
+ encap_tests=0
+ else
+ modprobe ip6_tunnel &>/dev/null
+ lsmod | grep -q "ip6_tunnel"
+ encap_tests=$?
+
+ if [ $encap_tests != 0 ]
+ then
+ ip a | grep -q "ip6tnl0"
+ encap_tests=$?
+
+ if [ $encap_tests != 0 ]
+ then
+ echo "Note: ip6_tunnel not found neither as a module nor inside the" \
+ "kernel, tests that require it (encap mode) will be omitted"
+ fi
+ fi
+ fi
}
cleanup()
@@ -242,6 +266,11 @@ cleanup()
ip netns del ioam-node-alpha || true
ip netns del ioam-node-beta || true
ip netns del ioam-node-gamma || true
+
+ if [ $ip6tnl_loaded != 0 ]
+ then
+ modprobe -r ip6_tunnel 2>/dev/null || true
+ fi
}
setup()
@@ -329,6 +358,12 @@ log_test_failed()
printf "TEST: %-60s [FAIL]\n" "${desc}"
}
+log_results()
+{
+ echo "- Tests passed: ${npassed}"
+ echo "- Tests failed: ${nfailed}"
+}
+
run_test()
{
local name=$1
@@ -349,16 +384,26 @@ run_test()
ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null
if [ $? != 0 ]
then
+ nfailed=$((nfailed+1))
log_test_failed "${desc}"
kill -2 $spid &>/dev/null
else
wait $spid
- [ $? = 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+ if [ $? = 0 ]
+ then
+ npassed=$((npassed+1))
+ log_test_passed "${desc}"
+ else
+ nfailed=$((nfailed+1))
+ log_test_failed "${desc}"
+ fi
fi
}
run()
{
+ echo
+ printf "%0.s-" {1..74}
echo
echo "OUTPUT tests"
printf "%0.s-" {1..74}
@@ -369,7 +414,8 @@ run()
for t in $TESTS_OUTPUT
do
- $t
+ $t "inline"
+ [ $encap_tests = 0 ] && $t "encap"
done
# clean OUTPUT settings
@@ -377,6 +423,8 @@ run()
ip -netns ioam-node-alpha route change db01::/64 dev veth0
+ echo
+ printf "%0.s-" {1..74}
echo
echo "INPUT tests"
printf "%0.s-" {1..74}
@@ -387,7 +435,8 @@ run()
for t in $TESTS_INPUT
do
- $t
+ $t "inline"
+ [ $encap_tests = 0 ] && $t "encap"
done
# clean INPUT settings
@@ -396,7 +445,8 @@ run()
ip -netns ioam-node-alpha ioam namespace set 123 schema ${ALPHA[8]}
ip -netns ioam-node-alpha route change db01::/64 dev veth0
-
+ echo
+ printf "%0.s-" {1..74}
echo
echo "GLOBAL tests"
printf "%0.s-" {1..74}
@@ -404,8 +454,12 @@ run()
for t in $TESTS_GLOBAL
do
- $t
+ $t "inline"
+ [ $encap_tests = 0 ] && $t "encap"
done
+
+ echo
+ log_results
}
bit2type=(
@@ -431,11 +485,16 @@ out_undef_ns()
##############################################################################
local desc="Unknown IOAM namespace"
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0x800000 ns 0 size 4 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0x800000 ns 0 size 4 dev veth0
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0x800000 0
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0x800000 0
+
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
}
out_no_room()
@@ -446,11 +505,16 @@ out_no_room()
##############################################################################
local desc="Missing trace room"
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0xc00000 ns 123 size 4 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0xc00000 ns 123 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0xc00000 123
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0xc00000 123
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
}
out_bits()
@@ -465,15 +529,21 @@ out_bits()
local tmp=${bit2size[22]}
bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
for i in {0..22}
do
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \
- prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \
+ dev veth0
- run_test "out_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \
- db01::2 db01::1 veth0 ${bit2type[$i]} 123
+ run_test "out_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \
+ ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123
done
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
+
bit2size[22]=$tmp
}
@@ -485,11 +555,16 @@ out_full_supp_trace()
##############################################################################
local desc="Full supported trace"
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0xfff002 ns 123 size 100 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0xfff002 123
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0xfff002 ns 123 size 100 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0xfff002 123
+
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
}
@@ -510,11 +585,16 @@ in_undef_ns()
##############################################################################
local desc="Unknown IOAM namespace"
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0x800000 ns 0 size 4 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0x800000 ns 0 size 4 dev veth0
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0x800000 0
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0x800000 0
+
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
}
in_no_room()
@@ -525,11 +605,16 @@ in_no_room()
##############################################################################
local desc="Missing trace room"
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0xc00000 ns 123 size 4 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0xc00000 ns 123 size 4 dev veth0
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0xc00000 123
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0xc00000 123
+
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
}
in_bits()
@@ -544,15 +629,21 @@ in_bits()
local tmp=${bit2size[22]}
bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
for i in {0..22}
do
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace \
- prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} dev veth0
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \
+ dev veth0
- run_test "in_bit$i" "${desc/<n>/$i}" ioam-node-alpha ioam-node-beta \
- db01::2 db01::1 veth0 ${bit2type[$i]} 123
+ run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" ioam-node-alpha \
+ ioam-node-beta db01::2 db01::1 veth0 ${bit2type[$i]} 123
done
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
+
bit2size[22]=$tmp
}
@@ -569,11 +660,16 @@ in_oflag()
# back the IOAM namespace that was previously configured on the sender.
ip -netns ioam-node-alpha ioam namespace add 123
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0xc00000 ns 123 size 4 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
+
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0xc00000 ns 123 size 4 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0xc00000 123
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0xc00000 123
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
# And we clean the exception for this test to get things back to normal for
# other INPUT tests
@@ -588,11 +684,16 @@ in_full_supp_trace()
##############################################################################
local desc="Full supported trace"
- ip -netns ioam-node-alpha route change db01::/64 encap ioam6 trace prealloc \
- type 0xfff002 ns 123 size 80 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 up
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-beta db01::2 \
- db01::1 veth0 0xfff002 123
+ ip -netns ioam-node-alpha route change db01::/64 encap ioam6 mode $mode \
+ trace prealloc type 0xfff002 ns 123 size 80 dev veth0
+
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-beta \
+ db01::2 db01::1 veth0 0xfff002 123
+
+ [ "$1" = "encap" ] && ip -netns ioam-node-beta link set ip6tnl0 down
}
@@ -611,11 +712,16 @@ fwd_full_supp_trace()
##############################################################################
local desc="Forward - Full supported trace"
- ip -netns ioam-node-alpha route change db02::/64 encap ioam6 trace prealloc \
- type 0xfff002 ns 123 size 244 via db01::1 dev veth0
+ [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1"
+ [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 up
+
+ ip -netns ioam-node-alpha route change db02::/64 encap ioam6 mode $mode \
+ trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0
- run_test ${FUNCNAME[0]} "${desc}" ioam-node-alpha ioam-node-gamma db01::2 \
- db02::2 veth0 0xfff002 123
+ run_test ${FUNCNAME[0]} "${desc} ($1 mode)" ioam-node-alpha ioam-node-gamma \
+ db01::2 db02::2 veth0 0xfff002 123
+
+ [ "$1" = "encap" ] && ip -netns ioam-node-gamma link set ip6tnl0 down
}
@@ -625,6 +731,9 @@ fwd_full_supp_trace()
# #
################################################################################
+npassed=0
+nfailed=0
+
if [ "$(id -u)" -ne 0 ]
then
echo "SKIP: Need root privileges"
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM
2021-10-03 18:45 [PATCH net-next v2 0/4] Support for the ip6ip6 encapsulation of IOAM Justin Iurman
` (3 preceding siblings ...)
2021-10-03 18:45 ` [PATCH net-next v2 4/4] selftests: net: Test for the IOAM encapsulation with IPv6 Justin Iurman
@ 2021-10-04 12:20 ` patchwork-bot+netdevbpf
4 siblings, 0 replies; 6+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-10-04 12:20 UTC (permalink / raw)
To: Justin Iurman; +Cc: netdev, davem, kuba, yoshfuji, dsahern
Hello:
This series was applied to netdev/net-next.git (refs/heads/master):
On Sun, 3 Oct 2021 20:45:35 +0200 you wrote:
> v2:
> - add prerequisite patches
> - keep uapi backwards compatible by adding two new attributes
> - add more comments to document the ioam6_iptunnel uapi
>
> In the current implementation, IOAM can only be inserted directly (i.e., only
> inside packets generated locally) by default, to be compliant with RFC8200.
>
> [...]
Here is the summary with links:
- [net-next,v2,1/4] ipv6: ioam: Distinguish input and output for hop-limit
https://git.kernel.org/netdev/net-next/c/52d03786459a
- [net-next,v2,2/4] ipv6: ioam: Prerequisite patch for ioam6_iptunnel
https://git.kernel.org/netdev/net-next/c/7b34e449e05e
- [net-next,v2,3/4] ipv6: ioam: Add support for the ip6ip6 encapsulation
https://git.kernel.org/netdev/net-next/c/8cb3bf8bff3c
- [net-next,v2,4/4] selftests: net: Test for the IOAM encapsulation with IPv6
https://git.kernel.org/netdev/net-next/c/bf77b1400a56
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 6+ messages in thread