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smc: display reserved bytes

This commit is contained in:
Alexis La Goutte 2021-02-07 20:59:33 +01:00 committed by AndersBroman
parent 152fd1fdab
commit c9174bb67d
1 changed files with 50 additions and 14 deletions
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64
epan/dissectors/packet-smc.c
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@ -1,3 +1,6 @@
/* packet-smc.c
* SMC dissector for wireshark
* By Joe Fowler <fowlerja@us.ibm.com>
@ -191,6 +194,8 @@ static int hf_smc_proposal_outgoing_subnet_mask_signifcant_bits = -1;
static int hf_smc_proposal_ipv6_prefix = -1;
static int hf_smc_proposal_ipv6_prefix_length = -1;
static int hf_smc_reserved = -1;
/* SMC-R Accept */
static int ett_accept_flag = -1;
static int ett_accept_flag2 = -1;
@ -427,6 +432,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
if (mask_offset != 0) {
suboffset = offset;
proto_tree_add_item(tree, hf_smc_reserved, tvb,
suboffset, TWO_BYTE_RESERVED, ENC_NA);
suboffset += TWO_BYTE_RESERVED;
if (is_smcdv1 || is_smcdv2) {
proto_tree_add_item(tree, hf_smc_proposal_ism_gid, tvb,
@ -439,6 +446,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
LENGTH_BYTE_LEN, ENC_BIG_ENDIAN);
}
suboffset += LENGTH_BYTE_LEN;
proto_tree_add_item(tree, hf_smc_reserved, tvb,
suboffset, TWO_BYTE_RESERVED, ENC_NA);
v2_ext_offset = tvb_get_ntohs(tvb, suboffset);
v2_ext_pos = suboffset + TWO_BYTE_RESERVED + v2_ext_offset;
}
@ -451,7 +460,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
proto_tree_add_item(tree, hf_smc_proposal_outgoing_subnet_mask_signifcant_bits, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Bump past reserved bytes */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, TWO_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
ipv6_prefix_count = tvb_get_guint8(tvb, offset);
offset += 1;
@ -472,7 +482,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
offset += FLAG_BYTE_LEN;
num_of_gids = tvb_get_guint8(tvb, offset);
offset += FLAG_BYTE_LEN;
/*Skip reserved flag 1*/
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, 1, ENC_NA);
offset += 1;
proposal_flag_item = proto_tree_add_item(tree, hf_smc_proposal_ext_flags, tvb,
offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
@ -482,7 +493,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
proto_tree_add_item(proposal_flag_tree, hf_proposal_smc_version_seid, tvb,
offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
offset += FLAG_BYTE_LEN;
/*Skip not used 2 bytes*/
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, 2, ENC_NA);
offset += 2;
smcd_v2_ext_offset = tvb_get_ntohs(tvb, offset);
offset += 2;
@ -499,7 +511,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
offset, IPV4_SUBNET_MASK_LEN, ENC_BIG_ENDIAN);
offset += IPV4_SUBNET_MASK_LEN;
}
/*Skip reserved 16 bytes*/
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, 16, ENC_NA);
offset += 16;
while (num_of_eids != 0) {
proto_tree_add_item(tree, hf_smc_proposal_eid, tvb,
@ -512,7 +525,8 @@ disect_smc_proposal(tvbuff_t *tvb, proto_tree *tree, bool is_ipv6)
proto_tree_add_item(tree, hf_smc_proposal_system_eid, tvb,
offset, EID_LEN, ENC_ASCII | ENC_NA);
offset += EID_LEN;
/*Skip reserved 16 bytes*/
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, 16, ENC_NA);
offset += 16;
while (num_of_gids != 0) {
proto_tree_add_item(tree, hf_smc_proposal_ism_gid, tvb,
@ -580,16 +594,21 @@ disect_smcd_accept(tvbuff_t* tvb, proto_tree* tree)
proto_tree_add_item(tree, hf_smcd_accept_eid, tvb, offset, 32, ENC_ASCII | ENC_NA);
offset += 32;
/* Reserved bytes */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, 8, ENC_NA);
offset += 8;
if (first_contact) {
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += ONE_BYTE_RESERVED;
accept_flag_item = proto_tree_add_item(tree, hf_smcd_accept_fce_flags, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
accept_flag_tree = proto_item_add_subtree(accept_flag_item, ett_smcd_accept_fce_flag);
proto_tree_add_item(accept_flag_tree, hf_accept_os_type, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(accept_flag_tree, hf_accept_smc_version_release_number, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
offset += FLAG_BYTE_LEN;
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, TWO_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcd_accept_peer_name, tvb, offset, 32, ENC_ASCII | ENC_NA);
/* offset += 32; */
@ -637,6 +656,8 @@ disect_smcd_confirm(tvbuff_t* tvb, proto_tree* tree)
confirm_flag2_tree = proto_item_add_subtree(confirm_flag2_item, ett_smcd_confirm_flag2);
proto_tree_add_item(confirm_flag2_tree, hf_smcd_confirm_dmb_buffer_size, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
offset += FLAG_BYTE_LEN;
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcd_confirm_client_link_id, tvb,
offset, ALERT_TOKEN_LEN, ENC_BIG_ENDIAN);
@ -649,16 +670,21 @@ disect_smcd_confirm(tvbuff_t* tvb, proto_tree* tree)
proto_tree_add_item(tree, hf_smcd_confirm_eid, tvb, offset, 32, ENC_ASCII | ENC_NA);
offset += 32;
/* Reserved bytes */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, 8, ENC_NA);
offset += 8;
if (first_contact) {
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += ONE_BYTE_RESERVED;
confirm_flag_item = proto_tree_add_item(tree, hf_smcd_accept_fce_flags, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
confirm_flag_tree = proto_item_add_subtree(confirm_flag_item, ett_smcd_confirm_fce_flag);
proto_tree_add_item(confirm_flag_tree, hf_confirm_os_type, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(confirm_flag_tree, hf_confirm_smc_version_release_number, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
offset += FLAG_BYTE_LEN;
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, TWO_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcd_confirm_peer_name, tvb, offset, 32, ENC_ASCII | ENC_NA);
/* offset += 32; */
@ -711,12 +737,14 @@ disect_smcr_accept(tvbuff_t *tvb, proto_tree *tree)
proto_tree_add_item(accept_flag2_tree, hf_accept_rmb_buffer_size, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(accept_flag2_tree, hf_accept_qp_mtu_value, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
offset += FLAG_BYTE_LEN;
/* Bump past reserved byte */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += ONE_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_accept_server_rmb_virtual_address, tvb,
offset, VIRTUAL_ADDR_LEN, ENC_BIG_ENDIAN);
offset += VIRTUAL_ADDR_LEN;
/* Bump past reserved byte */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += ONE_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_accept_initial_psn, tvb,
offset, PSN_LEN, ENC_BIG_ENDIAN);
@ -765,12 +793,14 @@ disect_smcr_confirm(tvbuff_t *tvb, proto_tree *tree)
proto_tree_add_item(confirm_flag2_tree, hf_confirm_rmb_buffer_size, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(confirm_flag2_tree, hf_confirm_qp_mtu_value, tvb, offset, FLAG_BYTE_LEN, ENC_BIG_ENDIAN);
offset += FLAG_BYTE_LEN;
/* Bump past reserved byte */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += ONE_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_confirm_client_rmb_virtual_address, tvb,
offset, VIRTUAL_ADDR_LEN, ENC_BIG_ENDIAN);
offset += VIRTUAL_ADDR_LEN;
/* Bump past reserved byte */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, ONE_BYTE_RESERVED, ENC_NA);
offset += ONE_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_confirm_initial_psn, tvb,
offset, PSN_LEN, ENC_BIG_ENDIAN);
@ -866,7 +896,8 @@ disect_smcr_add_link(tvbuff_t *tvb, proto_tree *tree)
proto_tree_add_item(tree, hf_smcr_add_link_mac, tvb,
offset, MAC_ADDR_LEN, ENC_NA);
offset += MAC_ADDR_LEN;
/* Bump past reserved bytes */
proto_tree_add_item(tree, hf_smc_reserved, tvb,
offset, TWO_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_add_link_gid, tvb,
offset, GID_LEN, ENC_NA);
@ -1084,12 +1115,13 @@ disect_smcr_rmbe_ctrl(tvbuff_t *tvb, proto_tree *tree)
offset += SEQNO_LEN;
proto_tree_add_item(tree, hf_smcr_rmbe_ctrl_alert_token, tvb, offset, ALERT_TOKEN_LEN, ENC_BIG_ENDIAN);
offset += ALERT_TOKEN_LEN;
proto_tree_add_item(tree, hf_smc_reserved, tvb, offset, TWO_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_rmbe_ctrl_prod_wrap_seqno, tvb, offset, SEQNO_LEN, ENC_BIG_ENDIAN);
offset += SEQNO_LEN;
proto_tree_add_item(tree, hf_smcr_rmbe_ctrl_peer_prod_curs, tvb, offset, CURSOR_LEN, ENC_BIG_ENDIAN);
offset += CURSOR_LEN;
/* Bump past reserved bytes */
proto_tree_add_item(tree, hf_smc_reserved, tvb, offset, TWO_BYTE_RESERVED, ENC_NA);
offset += TWO_BYTE_RESERVED;
proto_tree_add_item(tree, hf_smcr_rmbe_ctrl_cons_wrap_seqno, tvb, offset, SEQNO_LEN, ENC_BIG_ENDIAN);
offset += SEQNO_LEN;
@ -2053,7 +2085,11 @@ proto_register_smcr(void)
{ &hf_smcd_accept_fce_flags, {
"Flags", "smc.accept.fce.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL} }
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL} },
{ &hf_smc_reserved, {
"Reserved", "smc.reserved",
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL} }
};
/* Setup protocol subtree arrays */