diff options
Diffstat (limited to 'include/net/mctp.h')
| -rw-r--r-- | include/net/mctp.h | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/include/net/mctp.h b/include/net/mctp.h index 7e35ec79b909..82800d521c3d 100644 --- a/include/net/mctp.h +++ b/include/net/mctp.h @@ -36,15 +36,28 @@ struct mctp_hdr { #define MCTP_HDR_TAG_SHIFT 0 #define MCTP_HDR_TAG_MASK GENMASK(2, 0) -#define MCTP_HEADER_MAXLEN 4 - #define MCTP_INITIAL_DEFAULT_NET 1 -static inline bool mctp_address_ok(mctp_eid_t eid) +static inline bool mctp_address_unicast(mctp_eid_t eid) { return eid >= 8 && eid < 255; } +static inline bool mctp_address_broadcast(mctp_eid_t eid) +{ + return eid == 255; +} + +static inline bool mctp_address_null(mctp_eid_t eid) +{ + return eid == 0; +} + +static inline bool mctp_address_matches(mctp_eid_t match, mctp_eid_t eid) +{ + return match == eid || match == MCTP_ADDR_ANY; +} + static inline struct mctp_hdr *mctp_hdr(struct sk_buff *skb) { return (struct mctp_hdr *)skb_network_header(skb); @@ -121,7 +134,7 @@ struct mctp_sock { */ struct mctp_sk_key { mctp_eid_t peer_addr; - mctp_eid_t local_addr; + mctp_eid_t local_addr; /* MCTP_ADDR_ANY for local owned tags */ __u8 tag; /* incoming tag match; invert TO for local */ /* we hold a ref to sk when set */ @@ -158,6 +171,12 @@ struct mctp_sk_key { */ unsigned long dev_flow_state; struct mctp_dev *dev; + + /* a tag allocated with SIOCMCTPALLOCTAG ioctl will not expire + * automatically on timeout or response, instead SIOCMCTPDROPTAG + * is used. + */ + bool manual_alloc; }; struct mctp_skb_cb { @@ -234,6 +253,9 @@ int mctp_local_output(struct sock *sk, struct mctp_route *rt, struct sk_buff *skb, mctp_eid_t daddr, u8 req_tag); void mctp_key_unref(struct mctp_sk_key *key); +struct mctp_sk_key *mctp_alloc_local_tag(struct mctp_sock *msk, + mctp_eid_t daddr, mctp_eid_t saddr, + bool manual, u8 *tagp); /* routing <--> device interface */ unsigned int mctp_default_net(struct net *net); |