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authorPablo Neira Ayuso <pablo@netfilter.org>2019-02-02 12:50:46 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-06 10:38:25 -0800
commit3a7b68617de749d930b5503c3c5f30a17524f0bd (patch)
tree2ae0d5138afef528475886551cd3223e10478d09 /net/sched/cls_api.c
parentflow_offload: add flow action infrastructure (diff)
downloadlinux-dev-3a7b68617de749d930b5503c3c5f30a17524f0bd.tar.xz
linux-dev-3a7b68617de749d930b5503c3c5f30a17524f0bd.zip
cls_api: add translator to flow_action representation
This patch implements a new function to translate from native TC action to the new flow_action representation. Moreover, this patch also updates cls_flower to use this new function. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_api.c')
-rw-r--r--net/sched/cls_api.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 57713c63ac56..02cf6d2fa0e1 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -32,6 +32,13 @@
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>
#include <net/tc_act/tc_pedit.h>
+#include <net/tc_act/tc_mirred.h>
+#include <net/tc_act/tc_vlan.h>
+#include <net/tc_act/tc_tunnel_key.h>
+#include <net/tc_act/tc_csum.h>
+#include <net/tc_act/tc_gact.h>
+#include <net/tc_act/tc_skbedit.h>
+#include <net/tc_act/tc_mirred.h>
extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
@@ -2516,6 +2523,98 @@ int tc_setup_cb_call(struct tcf_block *block, enum tc_setup_type type,
}
EXPORT_SYMBOL(tc_setup_cb_call);
+int tc_setup_flow_action(struct flow_action *flow_action,
+ const struct tcf_exts *exts)
+{
+ const struct tc_action *act;
+ int i, j, k;
+
+ if (!exts)
+ return 0;
+
+ j = 0;
+ tcf_exts_for_each_action(i, act, exts) {
+ struct flow_action_entry *entry;
+
+ entry = &flow_action->entries[j];
+ if (is_tcf_gact_ok(act)) {
+ entry->id = FLOW_ACTION_ACCEPT;
+ } else if (is_tcf_gact_shot(act)) {
+ entry->id = FLOW_ACTION_DROP;
+ } else if (is_tcf_gact_trap(act)) {
+ entry->id = FLOW_ACTION_TRAP;
+ } else if (is_tcf_gact_goto_chain(act)) {
+ entry->id = FLOW_ACTION_GOTO;
+ entry->chain_index = tcf_gact_goto_chain_index(act);
+ } else if (is_tcf_mirred_egress_redirect(act)) {
+ entry->id = FLOW_ACTION_REDIRECT;
+ entry->dev = tcf_mirred_dev(act);
+ } else if (is_tcf_mirred_egress_mirror(act)) {
+ entry->id = FLOW_ACTION_MIRRED;
+ entry->dev = tcf_mirred_dev(act);
+ } else if (is_tcf_vlan(act)) {
+ switch (tcf_vlan_action(act)) {
+ case TCA_VLAN_ACT_PUSH:
+ entry->id = FLOW_ACTION_VLAN_PUSH;
+ entry->vlan.vid = tcf_vlan_push_vid(act);
+ entry->vlan.proto = tcf_vlan_push_proto(act);
+ entry->vlan.prio = tcf_vlan_push_prio(act);
+ break;
+ case TCA_VLAN_ACT_POP:
+ entry->id = FLOW_ACTION_VLAN_POP;
+ break;
+ case TCA_VLAN_ACT_MODIFY:
+ entry->id = FLOW_ACTION_VLAN_MANGLE;
+ entry->vlan.vid = tcf_vlan_push_vid(act);
+ entry->vlan.proto = tcf_vlan_push_proto(act);
+ entry->vlan.prio = tcf_vlan_push_prio(act);
+ break;
+ default:
+ goto err_out;
+ }
+ } else if (is_tcf_tunnel_set(act)) {
+ entry->id = FLOW_ACTION_TUNNEL_ENCAP;
+ entry->tunnel = tcf_tunnel_info(act);
+ } else if (is_tcf_tunnel_release(act)) {
+ entry->id = FLOW_ACTION_TUNNEL_DECAP;
+ entry->tunnel = tcf_tunnel_info(act);
+ } else if (is_tcf_pedit(act)) {
+ for (k = 0; k < tcf_pedit_nkeys(act); k++) {
+ switch (tcf_pedit_cmd(act, k)) {
+ case TCA_PEDIT_KEY_EX_CMD_SET:
+ entry->id = FLOW_ACTION_MANGLE;
+ break;
+ case TCA_PEDIT_KEY_EX_CMD_ADD:
+ entry->id = FLOW_ACTION_ADD;
+ break;
+ default:
+ goto err_out;
+ }
+ entry->mangle.htype = tcf_pedit_htype(act, k);
+ entry->mangle.mask = tcf_pedit_mask(act, k);
+ entry->mangle.val = tcf_pedit_val(act, k);
+ entry->mangle.offset = tcf_pedit_offset(act, k);
+ entry = &flow_action->entries[++j];
+ }
+ } else if (is_tcf_csum(act)) {
+ entry->id = FLOW_ACTION_CSUM;
+ entry->csum_flags = tcf_csum_update_flags(act);
+ } else if (is_tcf_skbedit_mark(act)) {
+ entry->id = FLOW_ACTION_MARK;
+ entry->mark = tcf_skbedit_mark(act);
+ } else {
+ goto err_out;
+ }
+
+ if (!is_tcf_pedit(act))
+ j++;
+ }
+ return 0;
+err_out:
+ return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(tc_setup_flow_action);
+
unsigned int tcf_exts_num_actions(struct tcf_exts *exts)
{
unsigned int num_acts = 0;