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add placeholder ipv4 ebpf tethering offload programs am: 088fe1983b

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Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1553912

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia261b07b7bbf180b312b539cb7cf4b127d9b4b43
This commit is contained in:
Maciej Żenczykowski
2021-01-21 11:46:39 +00:00
committed by Automerger Merge Worker
parent 18414d85d0 088fe1983b
commit f67811878a
1 changed files with 45 additions and 8 deletions
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53
Tethering/bpf_progs/offload.c
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@@ -24,18 +24,23 @@
#include "bpf_net_helpers.h" #include "bpf_net_helpers.h"
#include "netdbpf/bpf_shared.h" #include "netdbpf/bpf_shared.h"
DEFINE_BPF_MAP_GRW(tether_downstream6_map, HASH, TetherDownstream6Key, TetherDownstream6Value, 64,
AID_NETWORK_STACK)
DEFINE_BPF_MAP_GRW(tether_upstream6_map, HASH, TetherUpstream6Key, TetherUpstream6Value, 64,
AID_NETWORK_STACK)
// Tethering stats, indexed by upstream interface. // Tethering stats, indexed by upstream interface.
DEFINE_BPF_MAP_GRW(tether_stats_map, HASH, uint32_t, TetherStatsValue, 16, AID_NETWORK_STACK) DEFINE_BPF_MAP_GRW(tether_stats_map, HASH, TetherStatsKey, TetherStatsValue, 16, AID_NETWORK_STACK)
// Tethering data limit, indexed by upstream interface. // Tethering data limit, indexed by upstream interface.
// (tethering allowed when stats[iif].rxBytes + stats[iif].txBytes < limit[iif]) // (tethering allowed when stats[iif].rxBytes + stats[iif].txBytes < limit[iif])
DEFINE_BPF_MAP_GRW(tether_limit_map, HASH, uint32_t, uint64_t, 16, AID_NETWORK_STACK) DEFINE_BPF_MAP_GRW(tether_limit_map, HASH, TetherLimitKey, TetherLimitValue, 16, AID_NETWORK_STACK)
// ----- IPv6 Support -----
DEFINE_BPF_MAP_GRW(tether_downstream6_map, HASH, TetherDownstream6Key, TetherDownstream6Value, 64,
AID_NETWORK_STACK)
DEFINE_BPF_MAP_GRW(tether_downstream64_map, HASH, TetherDownstream64Key, TetherDownstream64Value,
64, AID_NETWORK_STACK)
DEFINE_BPF_MAP_GRW(tether_upstream6_map, HASH, TetherUpstream6Key, TetherUpstream6Value, 64,
AID_NETWORK_STACK)
static inline __always_inline int do_forward(struct __sk_buff* skb, const bool is_ethernet, static inline __always_inline int do_forward(struct __sk_buff* skb, const bool is_ethernet,
const bool downstream) { const bool downstream) {
@@ -256,5 +261,37 @@ DEFINE_BPF_PROG_KVER_RANGE("schedcls/tether_upstream6_rawip$stub", AID_ROOT, AID
return TC_ACT_OK; return TC_ACT_OK;
} }
// ----- IPv4 Support -----
DEFINE_BPF_MAP_GRW(tether_downstream4_map, HASH, TetherDownstream4Key, TetherDownstream4Value, 64,
AID_NETWORK_STACK)
DEFINE_BPF_MAP_GRW(tether_upstream4_map, HASH, TetherUpstream4Key, TetherUpstream4Value, 64,
AID_NETWORK_STACK)
DEFINE_BPF_PROG("schedcls/tether_downstream4_ether", AID_ROOT, AID_NETWORK_STACK,
sched_cls_tether_downstream4_ether)
(struct __sk_buff* skb) {
return TC_ACT_OK;
}
DEFINE_BPF_PROG("schedcls/tether_downstream4_rawip", AID_ROOT, AID_NETWORK_STACK,
sched_cls_tether_downstream4_rawip)
(struct __sk_buff* skb) {
return TC_ACT_OK;
}
DEFINE_BPF_PROG("schedcls/tether_upstream4_ether", AID_ROOT, AID_NETWORK_STACK,
sched_cls_tether_upstream4_ether)
(struct __sk_buff* skb) {
return TC_ACT_OK;
}
DEFINE_BPF_PROG("schedcls/tether_upstream4_rawip", AID_ROOT, AID_NETWORK_STACK,
sched_cls_tether_upstream4_rawip)
(struct __sk_buff* skb) {
return TC_ACT_OK;
}
LICENSE("Apache 2.0"); LICENSE("Apache 2.0");
CRITICAL("netd"); CRITICAL("netd");