[ovs-dev] [PATCH v5 4/9] ct-dpif, dpif-netlink: Add conntrack timeout policy support
Yi-Hung Wei
yihung.wei at gmail.com
Wed Aug 28 22:14:24 UTC 2019
This patch first defines the dpif interface for a datapath to support
adding, deleting, getting and dumping conntrack timeout policy.
The timeout policy is identified by a 4 bytes unsigned integer in
datapath, and it currently support timeout for TCP, UDP, and ICMP
protocols.
Moreover, this patch provides the implementation for Linux kernel
datapath in dpif-netlink.
In Linux kernel, the timeout policy is maintained per L3/L4 protocol,
and it is identified by 32 bytes null terminated string. On the other
hand, in vswitchd, the timeout policy is a generic one that consists of
all the supported L4 protocols. Therefore, one of the main task in
dpif-netlink is to break down the generic timeout policy into 6
sub policies (ipv4 tcp, udp, icmp, and ipv6 tcp, udp, icmp),
and push down the configuration using the netlink API in
netlink-conntrack.c.
This patch also adds missing symbols in the windows datapath so
that the build on windows can pass.
Appveyor CI:
* https://ci.appveyor.com/project/YiHungWei/ovs/builds/26387754
Signed-off-by: Yi-Hung Wei <yihung.wei at gmail.com>
Acked-by: Alin Gabriel Serdean <aserdean at ovn.org>
---
Documentation/faq/releases.rst | 3 +-
datapath-windows/include/OvsDpInterfaceCtExt.h | 114 +++++
datapath-windows/ovsext/Netlink/NetlinkProto.h | 8 +-
include/windows/automake.mk | 1 +
.../windows/linux/netfilter/nfnetlink_cttimeout.h | 0
lib/ct-dpif.c | 102 +++++
lib/ct-dpif.h | 56 +++
lib/dpif-netdev.c | 6 +
lib/dpif-netlink.c | 480 ++++++++++++++++++++-
lib/dpif-netlink.h | 1 -
lib/dpif-provider.h | 44 ++
lib/netlink-conntrack.c | 301 +++++++++++++
lib/netlink-conntrack.h | 27 +-
lib/netlink-protocol.h | 8 +-
14 files changed, 1142 insertions(+), 9 deletions(-)
create mode 100644 include/windows/linux/netfilter/nfnetlink_cttimeout.h
diff --git a/Documentation/faq/releases.rst b/Documentation/faq/releases.rst
index 8daa23bb2d0c..0b7eaab1b143 100644
--- a/Documentation/faq/releases.rst
+++ b/Documentation/faq/releases.rst
@@ -110,8 +110,9 @@ Q: Are all features available with all datapaths?
========================== ============== ============== ========= =======
Connection tracking 4.3 YES YES YES
Conntrack Fragment Reass. 4.3 YES YES YES
+ Conntrack Timeout Policies 5.2 YES NO NO
+ Conntrack Zone Limit 4.18 YES NO YES
NAT 4.6 YES YES YES
- Conntrack zone limit 4.18 YES NO YES
Tunnel - LISP NO YES NO NO
Tunnel - STT NO YES NO YES
Tunnel - GRE 3.11 YES YES YES
diff --git a/datapath-windows/include/OvsDpInterfaceCtExt.h b/datapath-windows/include/OvsDpInterfaceCtExt.h
index 3b947782e90c..3379f0a256fa 100644
--- a/datapath-windows/include/OvsDpInterfaceCtExt.h
+++ b/datapath-windows/include/OvsDpInterfaceCtExt.h
@@ -421,4 +421,118 @@ struct nf_ct_tcp_flags {
UINT8 mask;
};
+/* File: nfnetlink_cttimeout.h. XXX: the following are not implemented */
+enum ctnl_timeout_msg_types {
+ IPCTNL_MSG_TIMEOUT_NEW,
+ IPCTNL_MSG_TIMEOUT_GET,
+ IPCTNL_MSG_TIMEOUT_DELETE,
+ IPCTNL_MSG_TIMEOUT_DEFAULT_SET,
+ IPCTNL_MSG_TIMEOUT_DEFAULT_GET,
+
+ IPCTNL_MSG_TIMEOUT_MAX
+};
+
+enum ctattr_timeout {
+ CTA_TIMEOUT_UNSPEC,
+ CTA_TIMEOUT_NAME,
+ CTA_TIMEOUT_L3PROTO,
+ CTA_TIMEOUT_L4PROTO,
+ CTA_TIMEOUT_DATA,
+ CTA_TIMEOUT_USE,
+ __CTA_TIMEOUT_MAX
+};
+#define CTA_TIMEOUT_MAX (__CTA_TIMEOUT_MAX - 1)
+
+enum ctattr_timeout_generic {
+ CTA_TIMEOUT_GENERIC_UNSPEC,
+ CTA_TIMEOUT_GENERIC_TIMEOUT,
+ __CTA_TIMEOUT_GENERIC_MAX
+};
+#define CTA_TIMEOUT_GENERIC_MAX (__CTA_TIMEOUT_GENERIC_MAX - 1)
+
+enum ctattr_timeout_tcp {
+ CTA_TIMEOUT_TCP_UNSPEC,
+ CTA_TIMEOUT_TCP_SYN_SENT,
+ CTA_TIMEOUT_TCP_SYN_RECV,
+ CTA_TIMEOUT_TCP_ESTABLISHED,
+ CTA_TIMEOUT_TCP_FIN_WAIT,
+ CTA_TIMEOUT_TCP_CLOSE_WAIT,
+ CTA_TIMEOUT_TCP_LAST_ACK,
+ CTA_TIMEOUT_TCP_TIME_WAIT,
+ CTA_TIMEOUT_TCP_CLOSE,
+ CTA_TIMEOUT_TCP_SYN_SENT2,
+ CTA_TIMEOUT_TCP_RETRANS,
+ CTA_TIMEOUT_TCP_UNACK,
+ __CTA_TIMEOUT_TCP_MAX
+};
+#define CTA_TIMEOUT_TCP_MAX (__CTA_TIMEOUT_TCP_MAX - 1)
+
+enum ctattr_timeout_udp {
+ CTA_TIMEOUT_UDP_UNSPEC,
+ CTA_TIMEOUT_UDP_UNREPLIED,
+ CTA_TIMEOUT_UDP_REPLIED,
+ __CTA_TIMEOUT_UDP_MAX
+};
+#define CTA_TIMEOUT_UDP_MAX (__CTA_TIMEOUT_UDP_MAX - 1)
+
+enum ctattr_timeout_udplite {
+ CTA_TIMEOUT_UDPLITE_UNSPEC,
+ CTA_TIMEOUT_UDPLITE_UNREPLIED,
+ CTA_TIMEOUT_UDPLITE_REPLIED,
+ __CTA_TIMEOUT_UDPLITE_MAX
+};
+#define CTA_TIMEOUT_UDPLITE_MAX (__CTA_TIMEOUT_UDPLITE_MAX - 1)
+
+enum ctattr_timeout_icmp {
+ CTA_TIMEOUT_ICMP_UNSPEC,
+ CTA_TIMEOUT_ICMP_TIMEOUT,
+ __CTA_TIMEOUT_ICMP_MAX
+};
+#define CTA_TIMEOUT_ICMP_MAX (__CTA_TIMEOUT_ICMP_MAX - 1)
+
+enum ctattr_timeout_dccp {
+ CTA_TIMEOUT_DCCP_UNSPEC,
+ CTA_TIMEOUT_DCCP_REQUEST,
+ CTA_TIMEOUT_DCCP_RESPOND,
+ CTA_TIMEOUT_DCCP_PARTOPEN,
+ CTA_TIMEOUT_DCCP_OPEN,
+ CTA_TIMEOUT_DCCP_CLOSEREQ,
+ CTA_TIMEOUT_DCCP_CLOSING,
+ CTA_TIMEOUT_DCCP_TIMEWAIT,
+ __CTA_TIMEOUT_DCCP_MAX
+};
+#define CTA_TIMEOUT_DCCP_MAX (__CTA_TIMEOUT_DCCP_MAX - 1)
+
+enum ctattr_timeout_sctp {
+ CTA_TIMEOUT_SCTP_UNSPEC,
+ CTA_TIMEOUT_SCTP_CLOSED,
+ CTA_TIMEOUT_SCTP_COOKIE_WAIT,
+ CTA_TIMEOUT_SCTP_COOKIE_ECHOED,
+ CTA_TIMEOUT_SCTP_ESTABLISHED,
+ CTA_TIMEOUT_SCTP_SHUTDOWN_SENT,
+ CTA_TIMEOUT_SCTP_SHUTDOWN_RECD,
+ CTA_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT,
+ CTA_TIMEOUT_SCTP_HEARTBEAT_SENT,
+ CTA_TIMEOUT_SCTP_HEARTBEAT_ACKED,
+ __CTA_TIMEOUT_SCTP_MAX
+};
+#define CTA_TIMEOUT_SCTP_MAX (__CTA_TIMEOUT_SCTP_MAX - 1)
+
+enum ctattr_timeout_icmpv6 {
+ CTA_TIMEOUT_ICMPV6_UNSPEC,
+ CTA_TIMEOUT_ICMPV6_TIMEOUT,
+ __CTA_TIMEOUT_ICMPV6_MAX
+};
+#define CTA_TIMEOUT_ICMPV6_MAX (__CTA_TIMEOUT_ICMPV6_MAX - 1)
+
+enum ctattr_timeout_gre {
+ CTA_TIMEOUT_GRE_UNSPEC,
+ CTA_TIMEOUT_GRE_UNREPLIED,
+ CTA_TIMEOUT_GRE_REPLIED,
+ __CTA_TIMEOUT_GRE_MAX
+};
+#define CTA_TIMEOUT_GRE_MAX (__CTA_TIMEOUT_GRE_MAX - 1)
+
+#define CTNL_TIMEOUT_NAME_MAX 32
+
#endif /* __OVS_DP_INTERFACE_CT_EXT_H_ */
diff --git a/datapath-windows/ovsext/Netlink/NetlinkProto.h b/datapath-windows/ovsext/Netlink/NetlinkProto.h
index 59b56565c1dc..b32f6f7fb114 100644
--- a/datapath-windows/ovsext/Netlink/NetlinkProto.h
+++ b/datapath-windows/ovsext/Netlink/NetlinkProto.h
@@ -50,13 +50,17 @@
#define NLM_F_ACK 0x004
#define NLM_F_ECHO 0x008
+/* GET request flag.*/
#define NLM_F_ROOT 0x100
#define NLM_F_MATCH 0x200
-#define NLM_F_EXCL 0x200
#define NLM_F_ATOMIC 0x400
-#define NLM_F_CREATE 0x400
#define NLM_F_DUMP (NLM_F_ROOT | NLM_F_MATCH)
+/* NEW request flags. */
+#define NLM_F_REPLACE 0x100
+#define NLM_F_EXCL 0x200
+#define NLM_F_CREATE 0x400
+
/* nlmsg_type values. */
#define NLMSG_NOOP 1
#define NLMSG_ERROR 2
diff --git a/include/windows/automake.mk b/include/windows/automake.mk
index 382627b51787..883bbbf5d97c 100644
--- a/include/windows/automake.mk
+++ b/include/windows/automake.mk
@@ -15,6 +15,7 @@ noinst_HEADERS += \
include/windows/linux/netfilter/nf_conntrack_tcp.h \
include/windows/linux/netfilter/nfnetlink.h \
include/windows/linux/netfilter/nfnetlink_conntrack.h \
+ include/windows/linux/netfilter/nfnetlink_cttimeout.h \
include/windows/linux/pkt_sched.h \
include/windows/linux/types.h \
include/windows/net/if.h \
diff --git a/include/windows/linux/netfilter/nfnetlink_cttimeout.h b/include/windows/linux/netfilter/nfnetlink_cttimeout.h
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/lib/ct-dpif.c b/lib/ct-dpif.c
index 6ea7feb0ee35..be59f34ff995 100644
--- a/lib/ct-dpif.c
+++ b/lib/ct-dpif.c
@@ -760,3 +760,105 @@ ct_dpif_format_zone_limits(uint32_t default_limit,
ds_put_format(ds, ",count=%"PRIu32, zone_limit->count);
}
}
+
+static const char *const ct_dpif_tp_attr_string[] = {
+#define CT_DPIF_TP_TCP_ATTR(ATTR) \
+ [CT_DPIF_TP_ATTR_TCP_##ATTR] = "TCP_"#ATTR,
+ CT_DPIF_TP_TCP_ATTRS
+#undef CT_DPIF_TP_TCP_ATTR
+#define CT_DPIF_TP_UDP_ATTR(ATTR) \
+ [CT_DPIF_TP_ATTR_UDP_##ATTR] = "UDP_"#ATTR,
+ CT_DPIF_TP_UDP_ATTRS
+#undef CT_DPIF_TP_UDP_ATTR
+#define CT_DPIF_TP_ICMP_ATTR(ATTR) \
+ [CT_DPIF_TP_ATTR_ICMP_##ATTR] = "ICMP_"#ATTR,
+ CT_DPIF_TP_ICMP_ATTRS
+#undef CT_DPIF_TP_ICMP_ATTR
+};
+
+static bool
+ct_dpif_set_timeout_policy_attr(struct ct_dpif_timeout_policy *tp,
+ uint32_t attr, uint32_t value)
+{
+ if (tp->present & (1 << attr) && tp->attrs[attr] == value) {
+ return false;
+ }
+ tp->attrs[attr] = value;
+ tp->present |= 1 << attr;
+ return true;
+}
+
+/* Sets a timeout value identified by '*name' to 'value'.
+ * Returns true if the attribute is changed */
+bool
+ct_dpif_set_timeout_policy_attr_by_name(struct ct_dpif_timeout_policy *tp,
+ const char *name, uint32_t value)
+{
+ for (uint32_t i = 0; i < CT_DPIF_TP_ATTR_MAX; ++i) {
+ if (!strcasecmp(name, ct_dpif_tp_attr_string[i])) {
+ return ct_dpif_set_timeout_policy_attr(tp, i, value);
+ }
+ }
+ return false;
+}
+
+bool
+ct_dpif_timeout_policy_support_ipproto(uint8_t ipproto)
+{
+ if (ipproto == IPPROTO_TCP || ipproto == IPPROTO_UDP ||
+ ipproto == IPPROTO_ICMP || ipproto == IPPROTO_ICMPV6) {
+ return true;
+ }
+ return false;
+}
+
+int
+ct_dpif_set_timeout_policy(struct dpif *dpif,
+ const struct ct_dpif_timeout_policy *tp)
+{
+ return (dpif->dpif_class->ct_set_timeout_policy
+ ? dpif->dpif_class->ct_set_timeout_policy(dpif, tp)
+ : EOPNOTSUPP);
+}
+
+int
+ct_dpif_del_timeout_policy(struct dpif *dpif, uint32_t tp_id)
+{
+ return (dpif->dpif_class->ct_del_timeout_policy
+ ? dpif->dpif_class->ct_del_timeout_policy(dpif, tp_id)
+ : EOPNOTSUPP);
+}
+
+int
+ct_dpif_get_timeout_policy(struct dpif *dpif, uint32_t tp_id,
+ struct ct_dpif_timeout_policy *tp)
+{
+ return (dpif->dpif_class->ct_get_timeout_policy
+ ? dpif->dpif_class->ct_get_timeout_policy(
+ dpif, tp_id, tp) : EOPNOTSUPP);
+}
+
+int
+ct_dpif_timeout_policy_dump_start(struct dpif *dpif, void **statep)
+{
+ return (dpif->dpif_class->ct_timeout_policy_dump_start
+ ? dpif->dpif_class->ct_timeout_policy_dump_start(dpif, statep)
+ : EOPNOTSUPP);
+}
+
+int
+ct_dpif_timeout_policy_dump_next(struct dpif *dpif, void *state,
+ struct ct_dpif_timeout_policy *tp)
+{
+ return (dpif->dpif_class->ct_timeout_policy_dump_next
+ ? dpif->dpif_class->ct_timeout_policy_dump_next(dpif, state, tp)
+ : EOPNOTSUPP);
+}
+
+int
+ct_dpif_timeout_policy_dump_done(struct dpif *dpif, void *state)
+{
+ return (dpif->dpif_class->ct_timeout_policy_dump_done
+ ? dpif->dpif_class->ct_timeout_policy_dump_done(dpif, state)
+ : EOPNOTSUPP);
+}
diff --git a/lib/ct-dpif.h b/lib/ct-dpif.h
index 2f4906817946..aabd6962f2c0 100644
--- a/lib/ct-dpif.h
+++ b/lib/ct-dpif.h
@@ -225,6 +225,50 @@ struct ct_dpif_zone_limit {
struct ovs_list node;
};
+#define CT_DPIF_TP_TCP_ATTRS \
+ CT_DPIF_TP_TCP_ATTR(SYN_SENT) \
+ CT_DPIF_TP_TCP_ATTR(SYN_RECV) \
+ CT_DPIF_TP_TCP_ATTR(ESTABLISHED) \
+ CT_DPIF_TP_TCP_ATTR(FIN_WAIT) \
+ CT_DPIF_TP_TCP_ATTR(CLOSE_WAIT) \
+ CT_DPIF_TP_TCP_ATTR(LAST_ACK) \
+ CT_DPIF_TP_TCP_ATTR(TIME_WAIT) \
+ CT_DPIF_TP_TCP_ATTR(CLOSE) \
+ CT_DPIF_TP_TCP_ATTR(SYN_SENT2) \
+ CT_DPIF_TP_TCP_ATTR(RETRANSMIT) \
+ CT_DPIF_TP_TCP_ATTR(UNACK)
+
+#define CT_DPIF_TP_UDP_ATTRS \
+ CT_DPIF_TP_UDP_ATTR(FIRST) \
+ CT_DPIF_TP_UDP_ATTR(SINGLE) \
+ CT_DPIF_TP_UDP_ATTR(MULTIPLE)
+
+#define CT_DPIF_TP_ICMP_ATTRS \
+ CT_DPIF_TP_ICMP_ATTR(FIRST) \
+ CT_DPIF_TP_ICMP_ATTR(REPLY)
+
+enum OVS_PACKED_ENUM ct_dpif_tp_attr {
+#define CT_DPIF_TP_TCP_ATTR(ATTR) CT_DPIF_TP_ATTR_TCP_##ATTR,
+ CT_DPIF_TP_TCP_ATTRS
+#undef CT_DPIF_TP_TCP_ATTR
+#define CT_DPIF_TP_UDP_ATTR(ATTR) CT_DPIF_TP_ATTR_UDP_##ATTR,
+ CT_DPIF_TP_UDP_ATTRS
+#undef CT_DPIF_TP_UDP_ATTR
+#define CT_DPIF_TP_ICMP_ATTR(ATTR) CT_DPIF_TP_ATTR_ICMP_##ATTR,
+ CT_DPIF_TP_ICMP_ATTRS
+#undef CT_DPIF_TP_ICMP_ATTR
+ CT_DPIF_TP_ATTR_MAX
+};
+
+struct ct_dpif_timeout_policy {
+ uint32_t id; /* Unique identifier for the timeout policy in
+ * the datapath. */
+ uint32_t present; /* If a timeout attribute is present set the
+ * corresponding CT_DPIF_TP_ATTR_* mapping bit. */
+ uint32_t attrs[CT_DPIF_TP_ATTR_MAX]; /* An array that specifies
+ * timeout attribute values */
+};
+
int ct_dpif_dump_start(struct dpif *, struct ct_dpif_dump_state **,
const uint16_t *zone, int *);
int ct_dpif_dump_next(struct ct_dpif_dump_state *, struct ct_dpif_entry *);
@@ -262,5 +306,17 @@ bool ct_dpif_parse_zone_limit_tuple(const char *s, uint16_t *pzone,
uint32_t *plimit, struct ds *);
void ct_dpif_format_zone_limits(uint32_t default_limit,
const struct ovs_list *, struct ds *);
+bool ct_dpif_set_timeout_policy_attr_by_name(struct ct_dpif_timeout_policy *tp,
+ const char *key, uint32_t value);
+bool ct_dpif_timeout_policy_support_ipproto(uint8_t ipproto);
+int ct_dpif_set_timeout_policy(struct dpif *dpif,
+ const struct ct_dpif_timeout_policy *tp);
+int ct_dpif_get_timeout_policy(struct dpif *dpif, uint32_t tp_id,
+ struct ct_dpif_timeout_policy *tp);
+int ct_dpif_del_timeout_policy(struct dpif *dpif, uint32_t tp_id);
+int ct_dpif_timeout_policy_dump_start(struct dpif *dpif, void **statep);
+int ct_dpif_timeout_policy_dump_next(struct dpif *dpif, void *state,
+ struct ct_dpif_timeout_policy *tp);
+int ct_dpif_timeout_policy_dump_done(struct dpif *dpif, void *state);
#endif /* CT_DPIF_H */
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index d0a1c58adace..2079e368fb52 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -7529,6 +7529,12 @@ const struct dpif_class dpif_netdev_class = {
NULL, /* ct_set_limits */
NULL, /* ct_get_limits */
NULL, /* ct_del_limits */
+ NULL, /* ct_set_timeout_policy */
+ NULL, /* ct_get_timeout_policy */
+ NULL, /* ct_del_timeout_policy */
+ NULL, /* ct_timeout_policy_dump_start */
+ NULL, /* ct_timeout_policy_dump_next */
+ NULL, /* ct_timeout_policy_dump_done */
dpif_netdev_ipf_set_enabled,
dpif_netdev_ipf_set_min_frag,
dpif_netdev_ipf_set_max_nfrags,
diff --git a/lib/dpif-netlink.c b/lib/dpif-netlink.c
index 7bc71d6d19d7..85827cd65503 100644
--- a/lib/dpif-netlink.c
+++ b/lib/dpif-netlink.c
@@ -50,6 +50,7 @@
#include "odp-util.h"
#include "openvswitch/dynamic-string.h"
#include "openvswitch/flow.h"
+#include "openvswitch/hmap.h"
#include "openvswitch/match.h"
#include "openvswitch/ofpbuf.h"
#include "openvswitch/poll-loop.h"
@@ -2821,11 +2822,10 @@ dpif_netlink_ct_dump_done(struct dpif *dpif OVS_UNUSED,
struct ct_dpif_dump_state *dump_)
{
struct dpif_netlink_ct_dump_state *dump;
- int err;
INIT_CONTAINER(dump, dump_, up);
- err = nl_ct_dump_done(dump->nl_ct_dump);
+ int err = nl_ct_dump_done(dump->nl_ct_dump);
free(dump);
return err;
}
@@ -3023,6 +3023,476 @@ dpif_netlink_ct_del_limits(struct dpif *dpif OVS_UNUSED,
ofpbuf_delete(request);
return err;
}
+
+#define NL_TP_NAME_PREFIX "ovs_tp_"
+
+struct dpif_netlink_timeout_policy_protocol {
+ uint16_t l3num;
+ uint8_t l4num;
+};
+
+enum OVS_PACKED_ENUM dpif_netlink_support_timeout_policy_protocol {
+ DPIF_NL_TP_AF_INET_TCP,
+ DPIF_NL_TP_AF_INET_UDP,
+ DPIF_NL_TP_AF_INET_ICMP,
+ DPIF_NL_TP_AF_INET6_TCP,
+ DPIF_NL_TP_AF_INET6_UDP,
+ DPIF_NL_TP_AF_INET6_ICMPV6,
+ DPIF_NL_TP_MAX
+};
+
+#define DPIF_NL_ALL_TP ((1UL << DPIF_NL_TP_MAX) - 1)
+
+
+static struct dpif_netlink_timeout_policy_protocol tp_protos[] = {
+ [DPIF_NL_TP_AF_INET_TCP] = { .l3num = AF_INET, .l4num = IPPROTO_TCP },
+ [DPIF_NL_TP_AF_INET_UDP] = { .l3num = AF_INET, .l4num = IPPROTO_UDP },
+ [DPIF_NL_TP_AF_INET_ICMP] = { .l3num = AF_INET, .l4num = IPPROTO_ICMP },
+ [DPIF_NL_TP_AF_INET6_TCP] = { .l3num = AF_INET6, .l4num = IPPROTO_TCP },
+ [DPIF_NL_TP_AF_INET6_UDP] = { .l3num = AF_INET6, .l4num = IPPROTO_UDP },
+ [DPIF_NL_TP_AF_INET6_ICMPV6] = { .l3num = AF_INET6,
+ .l4num = IPPROTO_ICMPV6 },
+};
+
+static void
+dpif_netlink_format_tp_name(uint32_t id, uint16_t l3num, uint8_t l4num,
+ struct ds *tp_name)
+{
+ ds_clear(tp_name);
+ ds_put_format(tp_name, "%s%"PRIu32"_", NL_TP_NAME_PREFIX, id);
+ ct_dpif_format_ipproto(tp_name, l4num);
+
+ if (l3num == AF_INET) {
+ ds_put_cstr(tp_name, "4");
+ } else if (l3num == AF_INET6 && l4num != IPPROTO_ICMPV6) {
+ ds_put_cstr(tp_name, "6");
+ }
+
+ ovs_assert(tp_name->length < CTNL_TIMEOUT_NAME_MAX);
+}
+
+#define CT_DPIF_NL_TP_TCP_MAPPINGS \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, SYN_SENT, SYN_SENT) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, SYN_RECV, SYN_RECV) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, ESTABLISHED, ESTABLISHED) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, FIN_WAIT, FIN_WAIT) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, CLOSE_WAIT, CLOSE_WAIT) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, LAST_ACK, LAST_ACK) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, TIME_WAIT, TIME_WAIT) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, CLOSE, CLOSE) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, SYN_SENT2, SYN_SENT2) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, RETRANSMIT, RETRANS) \
+ CT_DPIF_NL_TP_MAPPING(TCP, TCP, UNACK, UNACK)
+
+#define CT_DPIF_NL_TP_UDP_MAPPINGS \
+ CT_DPIF_NL_TP_MAPPING(UDP, UDP, SINGLE, UNREPLIED) \
+ CT_DPIF_NL_TP_MAPPING(UDP, UDP, MULTIPLE, REPLIED)
+
+#define CT_DPIF_NL_TP_ICMP_MAPPINGS \
+ CT_DPIF_NL_TP_MAPPING(ICMP, ICMP, FIRST, TIMEOUT)
+
+#define CT_DPIF_NL_TP_ICMPV6_MAPPINGS \
+ CT_DPIF_NL_TP_MAPPING(ICMP, ICMPV6, FIRST, TIMEOUT)
+
+
+#define CT_DPIF_NL_TP_MAPPING(PROTO1, PROTO2, ATTR1, ATTR2) \
+if (tp->present & (1 << CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1)) { \
+ nl_tp->present |= 1 << CTA_TIMEOUT_##PROTO2##_##ATTR2; \
+ nl_tp->attrs[CTA_TIMEOUT_##PROTO2##_##ATTR2] = \
+ tp->attrs[CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1]; \
+}
+
+static void
+dpif_netlink_get_nl_tp_tcp_attrs(const struct ct_dpif_timeout_policy *tp,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ CT_DPIF_NL_TP_TCP_MAPPINGS
+}
+
+static void
+dpif_netlink_get_nl_tp_udp_attrs(const struct ct_dpif_timeout_policy *tp,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ CT_DPIF_NL_TP_UDP_MAPPINGS
+}
+
+static void
+dpif_netlink_get_nl_tp_icmp_attrs(const struct ct_dpif_timeout_policy *tp,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ CT_DPIF_NL_TP_ICMP_MAPPINGS
+}
+
+static void
+dpif_netlink_get_nl_tp_icmpv6_attrs(const struct ct_dpif_timeout_policy *tp,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ CT_DPIF_NL_TP_ICMPV6_MAPPINGS
+}
+
+#undef CT_DPIF_NL_TP_MAPPING
+
+static void
+dpif_netlink_get_nl_tp_attrs(const struct ct_dpif_timeout_policy *tp,
+ uint8_t l4num, struct nl_ct_timeout_policy *nl_tp)
+{
+ nl_tp->present = 0;
+
+ if (l4num == IPPROTO_TCP) {
+ dpif_netlink_get_nl_tp_tcp_attrs(tp, nl_tp);
+ } else if (l4num == IPPROTO_UDP) {
+ dpif_netlink_get_nl_tp_udp_attrs(tp, nl_tp);
+ } else if (l4num == IPPROTO_ICMP) {
+ dpif_netlink_get_nl_tp_icmp_attrs(tp, nl_tp);
+ } else if (l4num == IPPROTO_ICMPV6) {
+ dpif_netlink_get_nl_tp_icmpv6_attrs(tp, nl_tp);
+ }
+}
+
+#define CT_DPIF_NL_TP_MAPPING(PROTO1, PROTO2, ATTR1, ATTR2) \
+if (nl_tp->present & (1 << CTA_TIMEOUT_##PROTO2##_##ATTR2)) { \
+ if (tp->present & (1 << CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1)) { \
+ if (tp->attrs[CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1] != \
+ nl_tp->attrs[CTA_TIMEOUT_##PROTO2##_##ATTR2]) { \
+ VLOG_WARN_RL(&error_rl, "Inconsistent timeout policy %s " \
+ "attribute %s=%"PRIu32" while %s=%"PRIu32, \
+ nl_tp->name, "CTA_TIMEOUT_"#PROTO2"_"#ATTR2, \
+ nl_tp->attrs[CTA_TIMEOUT_##PROTO2##_##ATTR2], \
+ "CT_DPIF_TP_ATTR_"#PROTO1"_"#ATTR1, \
+ tp->attrs[CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1]); \
+ } \
+ } else { \
+ tp->present |= 1 << CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1; \
+ tp->attrs[CT_DPIF_TP_ATTR_##PROTO1##_##ATTR1] = \
+ nl_tp->attrs[CTA_TIMEOUT_##PROTO2##_##ATTR2]; \
+ } \
+}
+
+static void
+dpif_netlink_set_ct_dpif_tp_tcp_attrs(const struct nl_ct_timeout_policy *nl_tp,
+ struct ct_dpif_timeout_policy *tp)
+{
+ CT_DPIF_NL_TP_TCP_MAPPINGS
+}
+
+static void
+dpif_netlink_set_ct_dpif_tp_udp_attrs(const struct nl_ct_timeout_policy *nl_tp,
+ struct ct_dpif_timeout_policy *tp)
+{
+ CT_DPIF_NL_TP_UDP_MAPPINGS
+}
+
+static void
+dpif_netlink_set_ct_dpif_tp_icmp_attrs(
+ const struct nl_ct_timeout_policy *nl_tp,
+ struct ct_dpif_timeout_policy *tp)
+{
+ CT_DPIF_NL_TP_ICMP_MAPPINGS
+}
+
+static void
+dpif_netlink_set_ct_dpif_tp_icmpv6_attrs(
+ const struct nl_ct_timeout_policy *nl_tp,
+ struct ct_dpif_timeout_policy *tp)
+{
+ CT_DPIF_NL_TP_ICMPV6_MAPPINGS
+}
+
+#undef CT_DPIF_NL_TP_MAPPING
+
+static void
+dpif_netlink_set_ct_dpif_tp_attrs(const struct nl_ct_timeout_policy *nl_tp,
+ struct ct_dpif_timeout_policy *tp)
+{
+ if (nl_tp->l4num == IPPROTO_TCP) {
+ dpif_netlink_set_ct_dpif_tp_tcp_attrs(nl_tp, tp);
+ } else if (nl_tp->l4num == IPPROTO_UDP) {
+ dpif_netlink_set_ct_dpif_tp_udp_attrs(nl_tp, tp);
+ } else if (nl_tp->l4num == IPPROTO_ICMP) {
+ dpif_netlink_set_ct_dpif_tp_icmp_attrs(nl_tp, tp);
+ } else if (nl_tp->l4num == IPPROTO_ICMPV6) {
+ dpif_netlink_set_ct_dpif_tp_icmpv6_attrs(nl_tp, tp);
+ }
+}
+
+#ifdef _WIN32
+static int
+dpif_netlink_ct_set_timeout_policy(struct dpif *dpif OVS_UNUSED,
+ const struct ct_dpif_timeout_policy *tp)
+{
+ return EOPNOTSUPP;
+}
+
+static int
+dpif_netlink_ct_get_timeout_policy(struct dpif *dpif OVS_UNUSED,
+ uint32_t tp_id,
+ struct ct_dpif_timeout_policy *tp)
+{
+ return EOPNOTSUPP;
+}
+
+static int
+dpif_netlink_ct_del_timeout_policy(struct dpif *dpif OVS_UNUSED,
+ uint32_t tp_id)
+{
+ return EOPNOTSUPP;
+}
+
+static int
+dpif_netlink_ct_timeout_policy_dump_start(struct dpif *dpif OVS_UNUSED,
+ void **statep)
+{
+ return EOPNOTSUPP;
+}
+
+static int
+dpif_netlink_ct_timeout_policy_dump_next(struct dpif *dpif OVS_UNUSED,
+ void *state,
+ struct ct_dpif_timeout_policy **tp)
+{
+ return EOPNOTSUPP;
+}
+
+static int
+dpif_netlink_ct_timeout_policy_dump_done(struct dpif *dpif OVS_UNUSED,
+ void *state)
+{
+ return EOPNOTSUPP;
+}
+#else
+static int
+dpif_netlink_ct_set_timeout_policy(struct dpif *dpif OVS_UNUSED,
+ const struct ct_dpif_timeout_policy *tp)
+{
+ struct nl_ct_timeout_policy nl_tp;
+ struct ds nl_tp_name = DS_EMPTY_INITIALIZER;
+ int err = 0;
+
+ for (int i = 0; i < ARRAY_SIZE(tp_protos); ++i) {
+ dpif_netlink_format_tp_name(tp->id, tp_protos[i].l3num,
+ tp_protos[i].l4num, &nl_tp_name);
+ ovs_strlcpy(nl_tp.name, ds_cstr(&nl_tp_name), sizeof nl_tp.name);
+ nl_tp.l3num = tp_protos[i].l3num;
+ nl_tp.l4num = tp_protos[i].l4num;
+ dpif_netlink_get_nl_tp_attrs(tp, tp_protos[i].l4num, &nl_tp);
+ err = nl_ct_set_timeout_policy(&nl_tp);
+ if (err) {
+ VLOG_WARN_RL(&error_rl, "failed to add timeout policy %s (%s)",
+ nl_tp.name, ovs_strerror(err));
+ goto out;
+ }
+ }
+
+out:
+ ds_destroy(&nl_tp_name);
+ return err;
+}
+
+static int
+dpif_netlink_ct_get_timeout_policy(struct dpif *dpif OVS_UNUSED,
+ uint32_t tp_id,
+ struct ct_dpif_timeout_policy *tp)
+{
+ struct nl_ct_timeout_policy nl_tp;
+ struct ds nl_tp_name = DS_EMPTY_INITIALIZER;
+ int err = 0;
+
+ tp->id = tp_id;
+ tp->present = 0;
+ for (int i = 0; i < ARRAY_SIZE(tp_protos); ++i) {
+ dpif_netlink_format_tp_name(tp_id, tp_protos[i].l3num,
+ tp_protos[i].l4num, &nl_tp_name);
+ err = nl_ct_get_timeout_policy(ds_cstr(&nl_tp_name), &nl_tp);
+
+ if (err) {
+ VLOG_WARN_RL(&error_rl, "failed to get timeout policy %s (%s)",
+ nl_tp.name, ovs_strerror(err));
+ goto out;
+ }
+ dpif_netlink_set_ct_dpif_tp_attrs(&nl_tp, tp);
+ }
+
+out:
+ ds_destroy(&nl_tp_name);
+ return err;
+}
+
+/* Returns 0 if all the sub timeout policies are deleted or not exist in the
+ * kernel. Returns 1 if any sub timeout policy deletion failed. */
+static int
+dpif_netlink_ct_del_timeout_policy(struct dpif *dpif OVS_UNUSED,
+ uint32_t tp_id)
+{
+ struct ds nl_tp_name = DS_EMPTY_INITIALIZER;
+ int ret = 0;
+
+ for (int i = 0; i < ARRAY_SIZE(tp_protos); ++i) {
+ dpif_netlink_format_tp_name(tp_id, tp_protos[i].l3num,
+ tp_protos[i].l4num, &nl_tp_name);
+ int err = nl_ct_del_timeout_policy(ds_cstr(&nl_tp_name));
+ if (err == ENOENT) {
+ err = 0;
+ }
+ if (err) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(6, 6);
+ VLOG_INFO_RL(&rl, "failed to delete timeout policy %s (%s)",
+ ds_cstr(&nl_tp_name), ovs_strerror(err));
+ ret = 1;
+ }
+ }
+
+ ds_destroy(&nl_tp_name);
+ return ret;
+}
+
+struct dpif_netlink_ct_timeout_policy_dump_state {
+ struct nl_ct_timeout_policy_dump_state *nl_dump_state;
+ struct hmap tp_dump_map;
+};
+
+struct dpif_netlink_tp_dump_node {
+ struct hmap_node hmap_node; /* node in tp_dump_map. */
+ struct ct_dpif_timeout_policy *tp;
+ uint32_t l3_l4_present;
+};
+
+static struct dpif_netlink_tp_dump_node *
+get_dpif_netlink_tp_dump_node_by_tp_id(uint32_t tp_id,
+ struct hmap *tp_dump_map)
+{
+ struct dpif_netlink_tp_dump_node *tp_dump_node;
+
+ HMAP_FOR_EACH_WITH_HASH (tp_dump_node, hmap_node, hash_int(tp_id, 0),
+ tp_dump_map) {
+ if (tp_dump_node->tp->id == tp_id) {
+ return tp_dump_node;
+ }
+ }
+ return NULL;
+}
+
+static void
+update_dpif_netlink_tp_dump_node(
+ const struct nl_ct_timeout_policy *nl_tp,
+ struct dpif_netlink_tp_dump_node *tp_dump_node)
+{
+ dpif_netlink_set_ct_dpif_tp_attrs(nl_tp, tp_dump_node->tp);
+ for (int i = 0; i < DPIF_NL_TP_MAX; ++i) {
+ if (nl_tp->l3num == tp_protos[i].l3num &&
+ nl_tp->l4num == tp_protos[i].l4num) {
+ tp_dump_node->l3_l4_present |= 1 << i;
+ break;
+ }
+ }
+}
+
+static int
+dpif_netlink_ct_timeout_policy_dump_start(struct dpif *dpif OVS_UNUSED,
+ void **statep)
+{
+ struct dpif_netlink_ct_timeout_policy_dump_state *dump_state;
+
+ *statep = dump_state = xzalloc(sizeof *dump_state);
+ int err = nl_ct_timeout_policy_dump_start(&dump_state->nl_dump_state);
+ if (err) {
+ free(dump_state);
+ return err;
+ }
+ hmap_init(&dump_state->tp_dump_map);
+ return 0;
+}
+
+static void
+get_and_cleanup_tp_dump_node(struct hmap *hmap,
+ struct dpif_netlink_tp_dump_node *tp_dump_node,
+ struct ct_dpif_timeout_policy *tp)
+{
+ hmap_remove(hmap, &tp_dump_node->hmap_node);
+ *tp = *tp_dump_node->tp;
+ free(tp_dump_node->tp);
+ free(tp_dump_node);
+}
+
+static int
+dpif_netlink_ct_timeout_policy_dump_next(struct dpif *dpif OVS_UNUSED,
+ void *state,
+ struct ct_dpif_timeout_policy *tp)
+{
+ struct dpif_netlink_ct_timeout_policy_dump_state *dump_state = state;
+ struct dpif_netlink_tp_dump_node *tp_dump_node;
+ int err;
+
+ /* Dumps all the timeout policies in the kernel. */
+ do {
+ struct nl_ct_timeout_policy nl_tp;
+ uint32_t tp_id;
+
+ err = nl_ct_timeout_policy_dump_next(dump_state->nl_dump_state,
+ &nl_tp);
+ if (err) {
+ break;
+ }
+
+ /* We only interest in OVS installed timeout policies. */
+ if (!ovs_scan(nl_tp.name, NL_TP_NAME_PREFIX"%"PRIu32, &tp_id)) {
+ continue;
+ }
+
+ tp_dump_node = get_dpif_netlink_tp_dump_node_by_tp_id(
+ tp_id, &dump_state->tp_dump_map);
+ if (!tp_dump_node) {
+ tp_dump_node = xzalloc(sizeof *tp_dump_node);
+ tp_dump_node->tp = xzalloc(sizeof *tp_dump_node->tp);
+ tp_dump_node->tp->id = tp_id;
+ hmap_insert(&dump_state->tp_dump_map, &tp_dump_node->hmap_node,
+ hash_int(tp_id, 0));
+ }
+
+ update_dpif_netlink_tp_dump_node(&nl_tp, tp_dump_node);
+
+ /* Returns one ct_dpif_timeout_policy if we gather all the L3/L4
+ * sub-pieces. */
+ if (tp_dump_node->l3_l4_present == DPIF_NL_ALL_TP) {
+ get_and_cleanup_tp_dump_node(&dump_state->tp_dump_map,
+ tp_dump_node, tp);
+ break;
+ }
+ } while (true);
+
+ /* Dump the incomplete timeout policies. */
+ if (err == EOF) {
+ if (!hmap_is_empty(&dump_state->tp_dump_map)) {
+ struct hmap_node *hmap_node = hmap_first(&dump_state->tp_dump_map);
+ tp_dump_node = CONTAINER_OF(hmap_node,
+ struct dpif_netlink_tp_dump_node,
+ hmap_node);
+ get_and_cleanup_tp_dump_node(&dump_state->tp_dump_map,
+ tp_dump_node, tp);
+ return 0;
+ }
+ }
+
+ return err;
+}
+
+static int
+dpif_netlink_ct_timeout_policy_dump_done(struct dpif *dpif OVS_UNUSED,
+ void *state)
+{
+ struct dpif_netlink_ct_timeout_policy_dump_state *dump_state = state;
+ struct dpif_netlink_tp_dump_node *tp_dump_node;
+
+ int err = nl_ct_timeout_policy_dump_done(dump_state->nl_dump_state);
+ HMAP_FOR_EACH_POP (tp_dump_node, hmap_node, &dump_state->tp_dump_map) {
+ free(tp_dump_node->tp);
+ free(tp_dump_node);
+ }
+ hmap_destroy(&dump_state->tp_dump_map);
+ free(dump_state);
+ return err;
+}
+#endif
+
/* Meters */
@@ -3429,6 +3899,12 @@ const struct dpif_class dpif_netlink_class = {
dpif_netlink_ct_set_limits,
dpif_netlink_ct_get_limits,
dpif_netlink_ct_del_limits,
+ dpif_netlink_ct_set_timeout_policy,
+ dpif_netlink_ct_get_timeout_policy,
+ dpif_netlink_ct_del_timeout_policy,
+ dpif_netlink_ct_timeout_policy_dump_start,
+ dpif_netlink_ct_timeout_policy_dump_next,
+ dpif_netlink_ct_timeout_policy_dump_done,
NULL, /* ipf_set_enabled */
NULL, /* ipf_set_min_frag */
NULL, /* ipf_set_max_nfrags */
diff --git a/lib/dpif-netlink.h b/lib/dpif-netlink.h
index 0a9628088275..24294bc42dc3 100644
--- a/lib/dpif-netlink.h
+++ b/lib/dpif-netlink.h
@@ -20,7 +20,6 @@
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
-#include "odp-netlink.h"
#include "flow.h"
diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h
index 12898b9e3c6d..e988626ea05b 100644
--- a/lib/dpif-provider.h
+++ b/lib/dpif-provider.h
@@ -80,6 +80,7 @@ dpif_flow_dump_thread_init(struct dpif_flow_dump_thread *thread,
struct ct_dpif_dump_state;
struct ct_dpif_entry;
struct ct_dpif_tuple;
+struct ct_dpif_timeout_policy;
/* 'dpif_ipf_proto_status' and 'dpif_ipf_status' are presently in
* sync with 'ipf_proto_status' and 'ipf_status', but more
@@ -498,6 +499,49 @@ struct dpif_class {
* list of 'struct ct_dpif_zone_limit' entries. */
int (*ct_del_limits)(struct dpif *, const struct ovs_list *zone_limits);
+ /* Connection tracking timeout policy */
+
+ /* A connection tracking timeout policy contains a list of timeout
+ * attributes that specify timeout values on various connection states.
+ * In a datapath, the timeout policy is identified by a 4-byte unsigned
+ * integer. Unsupported timeout attributes are ignored. When a
+ * connection is committed it can be associated with a timeout
+ * policy, or it defaults to the datapath's default timeout policy. */
+
+ /* Sets timeout policy '*tp' into the datapath. */
+ int (*ct_set_timeout_policy)(struct dpif *,
+ const struct ct_dpif_timeout_policy *tp);
+ /* Gets a timeout policy specified by tp_id and stores it into '*tp'. */
+ int (*ct_get_timeout_policy)(struct dpif *, uint32_t tp_id,
+ struct ct_dpif_timeout_policy *tp);
+ /* Deletes a timeout policy identified by 'tp_id'. */
+ int (*ct_del_timeout_policy)(struct dpif *, uint32_t tp_id);
+
+ /* Conntrack timeout policy dumping interface.
+ *
+ * These functions provide a datapath-agnostic dumping interface
+ * to the conntrack timeout policy provided by the datapaths.
+ *
+ * ct_timeout_policy_dump_start() should put in '*statep' a pointer to
+ * a newly allocated structure that will be passed by the caller to
+ * ct_timeout_policy_dump_next() and ct_timeout_policy_dump_done().
+ *
+ * ct_timeout_policy_dump_next() attempts to retrieve another timeout
+ * policy from 'dpif' for 'state', which was initialized by a successful
+ * call to ct_timeout_policy_dump_start(). On success, stores a new
+ * timeout policy into 'tp' and returns 0. Returns EOF if the last
+ * timeout policy has been dumped, or a positive errno value on error.
+ * This function will not be called again once it returns nonzero once
+ * for a given iteration (but the ct_timeout_policy_dump_done() will
+ * be called afterward).
+ *
+ * ct_timeout_policy_dump_done() should perform any cleanup necessary
+ * (including deallocating the 'state' structure, if applicable). */
+ int (*ct_timeout_policy_dump_start)(struct dpif *, void **statep);
+ int (*ct_timeout_policy_dump_next)(struct dpif *, void *state,
+ struct ct_dpif_timeout_policy *tp);
+ int (*ct_timeout_policy_dump_done)(struct dpif *, void *state);
+
/* IP Fragmentation. */
/* Disables or enables conntrack fragment reassembly. The default
diff --git a/lib/netlink-conntrack.c b/lib/netlink-conntrack.c
index 7631ba5d5d31..86ab866cf591 100644
--- a/lib/netlink-conntrack.c
+++ b/lib/netlink-conntrack.c
@@ -840,6 +840,307 @@ nl_ct_parse_helper(struct nlattr *nla, struct ct_dpif_helper *helper)
return parsed;
}
+static int nl_ct_timeout_policy_max_attr[] = {
+ [IPPROTO_TCP] = CTA_TIMEOUT_TCP_MAX,
+ [IPPROTO_UDP] = CTA_TIMEOUT_UDP_MAX,
+ [IPPROTO_ICMP] = CTA_TIMEOUT_ICMP_MAX,
+ [IPPROTO_ICMPV6] = CTA_TIMEOUT_ICMPV6_MAX
+};
+
+static void
+nl_ct_set_timeout_policy_attr(struct nl_ct_timeout_policy *nl_tp,
+ uint32_t attr, uint32_t val)
+{
+ nl_tp->present |= 1 << attr;
+ nl_tp->attrs[attr] = val;
+}
+
+static int
+nl_ct_parse_tcp_timeout_policy_data(struct nlattr *nla,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ static const struct nl_policy policy[] = {
+ [CTA_TIMEOUT_TCP_SYN_SENT] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_SYN_RECV] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_ESTABLISHED] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_FIN_WAIT] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_CLOSE_WAIT] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_LAST_ACK] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_TIME_WAIT] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_CLOSE] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_SYN_SENT2] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_RETRANS] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_TCP_UNACK] = { .type = NL_A_BE32,
+ .optional = false },
+ };
+ struct nlattr *attrs[ARRAY_SIZE(policy)];
+
+ if (!nl_parse_nested(nla, policy, attrs, ARRAY_SIZE(policy))) {
+ VLOG_ERR_RL(&rl, "Could not parse nested tcp timeout options. "
+ "Possibly incompatible Linux kernel version.");
+ return EINVAL;
+ }
+
+ for (int i = CTA_TIMEOUT_TCP_SYN_SENT; i <= CTA_TIMEOUT_TCP_UNACK; i++) {
+ nl_ct_set_timeout_policy_attr(nl_tp, i,
+ ntohl(nl_attr_get_be32(attrs[i])));
+ }
+ return 0;
+}
+
+static int
+nl_ct_parse_udp_timeout_policy_data(struct nlattr *nla,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ static const struct nl_policy policy[] = {
+ [CTA_TIMEOUT_UDP_UNREPLIED] = { .type = NL_A_BE32,
+ .optional = false },
+ [CTA_TIMEOUT_UDP_REPLIED] = { .type = NL_A_BE32,
+ .optional = false },
+ };
+ struct nlattr *attrs[ARRAY_SIZE(policy)];
+
+ if (!nl_parse_nested(nla, policy, attrs, ARRAY_SIZE(policy))) {
+ VLOG_ERR_RL(&rl, "Could not parse nested tcp timeout options. "
+ "Possibly incompatible Linux kernel version.");
+ return EINVAL;
+ }
+
+ for (int i = CTA_TIMEOUT_UDP_UNREPLIED; i <= CTA_TIMEOUT_UDP_REPLIED;
+ i++) {
+ nl_ct_set_timeout_policy_attr(nl_tp, i,
+ ntohl(nl_attr_get_be32(attrs[i])));
+ }
+ return 0;
+}
+
+static int
+nl_ct_parse_icmp_timeout_policy_data(struct nlattr *nla,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ static const struct nl_policy policy[] = {
+ [CTA_TIMEOUT_ICMP_TIMEOUT] = { .type = NL_A_BE32,
+ .optional = false },
+ };
+ struct nlattr *attrs[ARRAY_SIZE(policy)];
+
+ if (!nl_parse_nested(nla, policy, attrs, ARRAY_SIZE(policy))) {
+ VLOG_ERR_RL(&rl, "Could not parse nested icmp timeout options. "
+ "Possibly incompatible Linux kernel version.");
+ return EINVAL;
+ }
+
+ nl_ct_set_timeout_policy_attr(
+ nl_tp, CTA_TIMEOUT_ICMP_TIMEOUT,
+ ntohl(nl_attr_get_be32(attrs[CTA_TIMEOUT_ICMP_TIMEOUT])));
+ return 0;
+}
+
+static int
+nl_ct_parse_icmpv6_timeout_policy_data(struct nlattr *nla,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ static const struct nl_policy policy[] = {
+ [CTA_TIMEOUT_ICMPV6_TIMEOUT] = { .type = NL_A_BE32,
+ .optional = false },
+ };
+ struct nlattr *attrs[ARRAY_SIZE(policy)];
+
+ if (!nl_parse_nested(nla, policy, attrs, ARRAY_SIZE(policy))) {
+ VLOG_ERR_RL(&rl, "Could not parse nested icmpv6 timeout options. "
+ "Possibly incompatible Linux kernel version.");
+ return EINVAL;
+ }
+
+ nl_ct_set_timeout_policy_attr(
+ nl_tp, CTA_TIMEOUT_ICMPV6_TIMEOUT,
+ ntohl(nl_attr_get_be32(attrs[CTA_TIMEOUT_ICMPV6_TIMEOUT])));
+ return 0;
+}
+
+static int
+nl_ct_parse_timeout_policy_data(struct nlattr *nla,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ switch (nl_tp->l4num) {
+ case IPPROTO_TCP:
+ return nl_ct_parse_tcp_timeout_policy_data(nla, nl_tp);
+ case IPPROTO_UDP:
+ return nl_ct_parse_udp_timeout_policy_data(nla, nl_tp);
+ case IPPROTO_ICMP:
+ return nl_ct_parse_icmp_timeout_policy_data(nla, nl_tp);
+ case IPPROTO_ICMPV6:
+ return nl_ct_parse_icmpv6_timeout_policy_data(nla, nl_tp);
+ default:
+ return EINVAL;
+ }
+}
+
+static int
+nl_ct_timeout_policy_from_ofpbuf(struct ofpbuf *buf,
+ struct nl_ct_timeout_policy *nl_tp,
+ bool default_tp)
+{
+ static const struct nl_policy policy[] = {
+ [CTA_TIMEOUT_NAME] = { .type = NL_A_STRING, .optional = false },
+ [CTA_TIMEOUT_L3PROTO] = { .type = NL_A_BE16, .optional = false },
+ [CTA_TIMEOUT_L4PROTO] = { .type = NL_A_U8, .optional = false },
+ [CTA_TIMEOUT_DATA] = { .type = NL_A_NESTED, .optional = false }
+ };
+ static const struct nl_policy policy_default_tp[] = {
+ [CTA_TIMEOUT_L3PROTO] = { .type = NL_A_BE16, .optional = false },
+ [CTA_TIMEOUT_L4PROTO] = { .type = NL_A_U8, .optional = false },
+ [CTA_TIMEOUT_DATA] = { .type = NL_A_NESTED, .optional = false }
+ };
+
+ struct nlattr *attrs[ARRAY_SIZE(policy)];
+ struct ofpbuf b = ofpbuf_const_initializer(buf->data, buf->size);
+ struct nlmsghdr *nlmsg = ofpbuf_try_pull(&b, sizeof *nlmsg);
+ struct nfgenmsg *nfmsg = ofpbuf_try_pull(&b, sizeof *nfmsg);
+
+ if (!nlmsg || !nfmsg
+ || NFNL_SUBSYS_ID(nlmsg->nlmsg_type) != NFNL_SUBSYS_CTNETLINK_TIMEOUT
+ || nfmsg->version != NFNETLINK_V0
+ || !nl_policy_parse(&b, 0, default_tp ? policy_default_tp : policy,
+ attrs, default_tp ? ARRAY_SIZE(policy_default_tp) :
+ ARRAY_SIZE(policy))) {
+ return EINVAL;
+ }
+
+ if (!default_tp) {
+ ovs_strlcpy(nl_tp->name, nl_attr_get_string(attrs[CTA_TIMEOUT_NAME]),
+ sizeof nl_tp->name);
+ }
+ nl_tp->l3num = ntohs(nl_attr_get_be16(attrs[CTA_TIMEOUT_L3PROTO]));
+ nl_tp->l4num = nl_attr_get_u8(attrs[CTA_TIMEOUT_L4PROTO]);
+ nl_tp->present = 0;
+
+ return nl_ct_parse_timeout_policy_data(attrs[CTA_TIMEOUT_DATA], nl_tp);
+}
+
+int
+nl_ct_set_timeout_policy(const struct nl_ct_timeout_policy *nl_tp)
+{
+ struct ofpbuf buf;
+ size_t offset;
+
+ ofpbuf_init(&buf, 512);
+ nl_msg_put_nfgenmsg(&buf, 0, AF_UNSPEC, NFNL_SUBSYS_CTNETLINK_TIMEOUT,
+ IPCTNL_MSG_TIMEOUT_NEW, NLM_F_REQUEST | NLM_F_CREATE
+ | NLM_F_ACK | NLM_F_REPLACE);
+
+ nl_msg_put_string(&buf, CTA_TIMEOUT_NAME, nl_tp->name);
+ nl_msg_put_be16(&buf, CTA_TIMEOUT_L3PROTO, htons(nl_tp->l3num));
+ nl_msg_put_u8(&buf, CTA_TIMEOUT_L4PROTO, nl_tp->l4num);
+
+ offset = nl_msg_start_nested(&buf, CTA_TIMEOUT_DATA);
+ for (int i = 1; i <= nl_ct_timeout_policy_max_attr[nl_tp->l4num]; ++i) {
+ if (nl_tp->present & 1 << i) {
+ nl_msg_put_be32(&buf, i, htonl(nl_tp->attrs[i]));
+ }
+ }
+ nl_msg_end_nested(&buf, offset);
+
+ int err = nl_transact(NETLINK_NETFILTER, &buf, NULL);
+ ofpbuf_uninit(&buf);
+ return err;
+}
+
+int
+nl_ct_get_timeout_policy(const char *tp_name,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ struct ofpbuf request, *reply;
+
+ ofpbuf_init(&request, 512);
+ nl_msg_put_nfgenmsg(&request, 0, AF_UNSPEC, NFNL_SUBSYS_CTNETLINK_TIMEOUT,
+ IPCTNL_MSG_TIMEOUT_GET, NLM_F_REQUEST | NLM_F_ACK);
+ nl_msg_put_string(&request, CTA_TIMEOUT_NAME, tp_name);
+ int err = nl_transact(NETLINK_NETFILTER, &request, &reply);
+ if (err) {
+ goto out;
+ }
+
+ err = nl_ct_timeout_policy_from_ofpbuf(reply, nl_tp, false);
+
+out:
+ ofpbuf_uninit(&request);
+ ofpbuf_delete(reply);
+ return err;
+}
+
+int
+nl_ct_del_timeout_policy(const char *tp_name)
+{
+ struct ofpbuf buf;
+
+ ofpbuf_init(&buf, 64);
+ nl_msg_put_nfgenmsg(&buf, 0, AF_UNSPEC, NFNL_SUBSYS_CTNETLINK_TIMEOUT,
+ IPCTNL_MSG_TIMEOUT_DELETE, NLM_F_REQUEST | NLM_F_ACK);
+
+ nl_msg_put_string(&buf, CTA_TIMEOUT_NAME, tp_name);
+ int err = nl_transact(NETLINK_NETFILTER, &buf, NULL);
+ ofpbuf_uninit(&buf);
+ return err;
+}
+
+struct nl_ct_timeout_policy_dump_state {
+ struct nl_dump dump;
+ struct ofpbuf buf;
+};
+
+int
+nl_ct_timeout_policy_dump_start(
+ struct nl_ct_timeout_policy_dump_state **statep)
+{
+ struct ofpbuf request;
+ struct nl_ct_timeout_policy_dump_state *state;
+
+ *statep = state = xzalloc(sizeof *state);
+ ofpbuf_init(&request, 512);
+ nl_msg_put_nfgenmsg(&request, 0, AF_UNSPEC, NFNL_SUBSYS_CTNETLINK_TIMEOUT,
+ IPCTNL_MSG_TIMEOUT_GET,
+ NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP);
+
+ nl_dump_start(&state->dump, NETLINK_NETFILTER, &request);
+ ofpbuf_uninit(&request);
+ ofpbuf_init(&state->buf, NL_DUMP_BUFSIZE);
+ return 0;
+}
+
+int
+nl_ct_timeout_policy_dump_next(struct nl_ct_timeout_policy_dump_state *state,
+ struct nl_ct_timeout_policy *nl_tp)
+{
+ struct ofpbuf reply;
+
+ if (!nl_dump_next(&state->dump, &reply, &state->buf)) {
+ return EOF;
+ }
+ int err = nl_ct_timeout_policy_from_ofpbuf(&reply, nl_tp, false);
+ ofpbuf_uninit(&reply);
+ return err;
+}
+
+int
+nl_ct_timeout_policy_dump_done(struct nl_ct_timeout_policy_dump_state *state)
+{
+ int err = nl_dump_done(&state->dump);
+ ofpbuf_uninit(&state->buf);
+ free(state);
+ return err;
+}
+
/* Translate netlink entry status flags to CT_DPIF_TCP status flags. */
static uint32_t
ips_status_to_dpif_flags(uint32_t status)
diff --git a/lib/netlink-conntrack.h b/lib/netlink-conntrack.h
index 8b536fd65ba8..81c74549bd16 100644
--- a/lib/netlink-conntrack.h
+++ b/lib/netlink-conntrack.h
@@ -17,6 +17,8 @@
#ifndef NETLINK_CONNTRACK_H
#define NETLINK_CONNTRACK_H
+#include <linux/netfilter/nfnetlink_cttimeout.h>
+
#include "byte-order.h"
#include "compiler.h"
#include "ct-dpif.h"
@@ -33,10 +35,21 @@ enum nl_ct_event_type {
NL_CT_EVENT_DELETE = 1 << 2,
};
+#define NL_CT_TIMEOUT_POLICY_MAX_ATTR (CTA_TIMEOUT_TCP_MAX + 1)
+
+struct nl_ct_timeout_policy {
+ char name[CTNL_TIMEOUT_NAME_MAX];
+ uint16_t l3num;
+ uint8_t l4num;
+ uint32_t attrs[NL_CT_TIMEOUT_POLICY_MAX_ATTR];
+ uint32_t present;
+};
+
struct nl_ct_dump_state;
+struct nl_ct_timeout_policy_dump_state;
int nl_ct_dump_start(struct nl_ct_dump_state **, const uint16_t *zone,
- int *ptot_bkts);
+ int *ptot_bkts);
int nl_ct_dump_next(struct nl_ct_dump_state *, struct ct_dpif_entry *);
int nl_ct_dump_done(struct nl_ct_dump_state *);
@@ -44,6 +57,18 @@ int nl_ct_flush(void);
int nl_ct_flush_zone(uint16_t zone);
int nl_ct_flush_tuple(const struct ct_dpif_tuple *, uint16_t zone);
+int nl_ct_set_timeout_policy(const struct nl_ct_timeout_policy *nl_tp);
+int nl_ct_get_timeout_policy(const char *tp_name,
+ struct nl_ct_timeout_policy *nl_tp);
+int nl_ct_del_timeout_policy(const char *tp_name);
+int nl_ct_timeout_policy_dump_start(
+ struct nl_ct_timeout_policy_dump_state **statep);
+int nl_ct_timeout_policy_dump_next(
+ struct nl_ct_timeout_policy_dump_state *state,
+ struct nl_ct_timeout_policy *nl_tp);
+int nl_ct_timeout_policy_dump_done(
+ struct nl_ct_timeout_policy_dump_state *state);
+
bool nl_ct_parse_entry(struct ofpbuf *, struct ct_dpif_entry *,
enum nl_ct_event_type *);
void nl_ct_format_event_entry(const struct ct_dpif_entry *,
diff --git a/lib/netlink-protocol.h b/lib/netlink-protocol.h
index c0617dfad21f..ceded7915ef8 100644
--- a/lib/netlink-protocol.h
+++ b/lib/netlink-protocol.h
@@ -47,13 +47,17 @@
#define NLM_F_ACK 0x004
#define NLM_F_ECHO 0x008
+/* GET request flag.*/
#define NLM_F_ROOT 0x100
#define NLM_F_MATCH 0x200
-#define NLM_F_EXCL 0x200
#define NLM_F_ATOMIC 0x400
-#define NLM_F_CREATE 0x400
#define NLM_F_DUMP (NLM_F_ROOT | NLM_F_MATCH)
+/* NEW request flags. */
+#define NLM_F_REPLACE 0x100
+#define NLM_F_EXCL 0x200
+#define NLM_F_CREATE 0x400
+
/* nlmsg_type values. */
#define NLMSG_NOOP 1
#define NLMSG_ERROR 2
--
2.7.4
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