-static const struct {
- u8 feat_num; /* DCCPF_xxx */
- enum dccp_feat_type rxtx; /* RX or TX */
- enum dccp_feat_type reconciliation; /* SP or NN */
- u8 default_value; /* as in 6.4 */
- int (*activation_hdlr)(struct sock *sk, u64 val, bool rx);
-/*
- * Lookup table for location and type of features (from RFC 4340/4342)
- * +--------------------------+----+-----+----+----+---------+-----------+
- * | Feature | Location | Reconc. | Initial | Section |
- * | | RX | TX | SP | NN | Value | Reference |
- * +--------------------------+----+-----+----+----+---------+-----------+
- * | DCCPF_CCID | | X | X | | 2 | 10 |
- * | DCCPF_SHORT_SEQNOS | | X | X | | 0 | 7.6.1 |
- * | DCCPF_SEQUENCE_WINDOW | | X | | X | 100 | 7.5.2 |
- * | DCCPF_ECN_INCAPABLE | X | | X | | 0 | 12.1 |
- * | DCCPF_ACK_RATIO | | X | | X | 2 | 11.3 |
- * | DCCPF_SEND_ACK_VECTOR | X | | X | | 0 | 11.5 |
- * | DCCPF_SEND_NDP_COUNT | | X | X | | 0 | 7.7.2 |
- * | DCCPF_MIN_CSUM_COVER | X | | X | | 0 | 9.2.1 |
- * | DCCPF_DATA_CHECKSUM | X | | X | | 0 | 9.3.1 |
- * | DCCPF_SEND_LEV_RATE | X | | X | | 0 | 4342/8.4 |
- * +--------------------------+----+-----+----+----+---------+-----------+
- */
-} dccp_feat_table[] = {
- { DCCPF_CCID, FEAT_AT_TX, FEAT_SP, 2, dccp_hdlr_ccid },
- { DCCPF_SHORT_SEQNOS, FEAT_AT_TX, FEAT_SP, 0, NULL },
- { DCCPF_SEQUENCE_WINDOW, FEAT_AT_TX, FEAT_NN, 100, dccp_hdlr_seq_win },
- { DCCPF_ECN_INCAPABLE, FEAT_AT_RX, FEAT_SP, 0, NULL },
- { DCCPF_ACK_RATIO, FEAT_AT_TX, FEAT_NN, 2, dccp_hdlr_ack_ratio},
- { DCCPF_SEND_ACK_VECTOR, FEAT_AT_RX, FEAT_SP, 0, dccp_hdlr_ackvec },
- { DCCPF_SEND_NDP_COUNT, FEAT_AT_TX, FEAT_SP, 0, dccp_hdlr_ndp },
- { DCCPF_MIN_CSUM_COVER, FEAT_AT_RX, FEAT_SP, 0, dccp_hdlr_min_cscov},
- { DCCPF_DATA_CHECKSUM, FEAT_AT_RX, FEAT_SP, 0, NULL },
- { DCCPF_SEND_LEV_RATE, FEAT_AT_RX, FEAT_SP, 0, NULL },
-};
-#define DCCP_FEAT_SUPPORTED_MAX ARRAY_SIZE(dccp_feat_table)
-
-/**
- * dccp_feat_index - Hash function to map feature number into array position
- * Returns consecutive array index or -1 if the feature is not understood.
- */
-static int dccp_feat_index(u8 feat_num)