static void
stp_print_config_bpdu(const struct stp_bpdu_ *stp_bpdu, u_int length)
{
printf(", Flags [%s]",
bittok2str(stp_bpdu_flag_values, "none", stp_bpdu->flags));
printf(", bridge-id %s.%04x, length %u",
stp_print_bridge_id((const u_char *)&stp_bpdu->bridge_id),
EXTRACT_16BITS(&stp_bpdu->port_id), length);
/* in non-verbose mode just print the bridge-id */
if (!vflag) {
return;
}
printf("\n\tmessage-age %.2fs, max-age %.2fs"
", hello-time %.2fs, forwarding-delay %.2fs",
(float)EXTRACT_16BITS(&stp_bpdu->message_age) / STP_TIME_BASE,
(float)EXTRACT_16BITS(&stp_bpdu->max_age) / STP_TIME_BASE,
(float)EXTRACT_16BITS(&stp_bpdu->hello_time) / STP_TIME_BASE,
(float)EXTRACT_16BITS(&stp_bpdu->forward_delay) / STP_TIME_BASE);
printf("\n\troot-id %s, root-pathcost %u",
stp_print_bridge_id((const u_char *)&stp_bpdu->root_id),
EXTRACT_32BITS(&stp_bpdu->root_path_cost));
/* Port role is only valid for 802.1w */
if (stp_bpdu->protocol_version == STP_PROTO_RAPID) {
printf(", port-role %s",
tok2str(rstp_obj_port_role_values, "Unknown",
RSTP_EXTRACT_PORT_ROLE(stp_bpdu->flags)));
}
}
static int
stp_print_config_bpdu(netdissect_options *ndo, const struct stp_bpdu_ *stp_bpdu,
u_int length)
{
uint8_t bpdu_flags;
ND_TCHECK_1(stp_bpdu->flags);
bpdu_flags = EXTRACT_U_1(stp_bpdu->flags);
ND_PRINT(", Flags [%s]",
bittok2str(stp_bpdu_flag_values, "none", bpdu_flags));
ND_TCHECK_2(stp_bpdu->port_id);
ND_PRINT(", bridge-id %s.%04x, length %u",
stp_print_bridge_id((const u_char *)&stp_bpdu->bridge_id),
EXTRACT_BE_U_2(stp_bpdu->port_id), length);
/* in non-verbose mode just print the bridge-id */
if (!ndo->ndo_vflag) {
return 1;
}
ND_TCHECK_2(stp_bpdu->forward_delay);
ND_PRINT("\n\tmessage-age %.2fs, max-age %.2fs"
", hello-time %.2fs, forwarding-delay %.2fs",
(float) EXTRACT_BE_U_2(stp_bpdu->message_age) / STP_TIME_BASE,
(float) EXTRACT_BE_U_2(stp_bpdu->max_age) / STP_TIME_BASE,
(float) EXTRACT_BE_U_2(stp_bpdu->hello_time) / STP_TIME_BASE,
(float) EXTRACT_BE_U_2(stp_bpdu->forward_delay) / STP_TIME_BASE);
ND_PRINT("\n\troot-id %s, root-pathcost %u",
stp_print_bridge_id((const u_char *)&stp_bpdu->root_id),
EXTRACT_BE_U_4(stp_bpdu->root_path_cost));
/* Port role is only valid for 802.1w */
if (EXTRACT_U_1(stp_bpdu->protocol_version) == STP_PROTO_RAPID) {
ND_PRINT(", port-role %s",
tok2str(rstp_obj_port_role_values, "Unknown",
RSTP_EXTRACT_PORT_ROLE(bpdu_flags)));
}
return 1;
trunc:
return 0;
}
static int
stp_print_mstp_bpdu(netdissect_options *ndo, const struct stp_bpdu_ *stp_bpdu,
u_int length)
{
const u_char *ptr;
uint8_t bpdu_flags;
uint16_t v3len;
uint16_t len;
uint16_t msti;
u_int offset;
ptr = (const u_char *)stp_bpdu;
ND_TCHECK_1(stp_bpdu->flags);
bpdu_flags = EXTRACT_U_1(stp_bpdu->flags);
ND_PRINT(", CIST Flags [%s], length %u",
bittok2str(stp_bpdu_flag_values, "none", bpdu_flags), length);
/*
* in non-verbose mode just print the flags.
*/
if (!ndo->ndo_vflag) {
return 1;
}
ND_PRINT("\n\tport-role %s, ",
tok2str(rstp_obj_port_role_values, "Unknown",
RSTP_EXTRACT_PORT_ROLE(bpdu_flags)));
ND_TCHECK_4(stp_bpdu->root_path_cost);
ND_PRINT("CIST root-id %s, CIST ext-pathcost %u",
stp_print_bridge_id((const u_char *)&stp_bpdu->root_id),
EXTRACT_BE_U_4(stp_bpdu->root_path_cost));
ND_TCHECK_SIZE(&stp_bpdu->bridge_id);
ND_PRINT("\n\tCIST regional-root-id %s, ",
stp_print_bridge_id((const u_char *)&stp_bpdu->bridge_id));
ND_TCHECK_2(stp_bpdu->port_id);
ND_PRINT("CIST port-id %04x,", EXTRACT_BE_U_2(stp_bpdu->port_id));
ND_TCHECK_2(stp_bpdu->forward_delay);
ND_PRINT("\n\tmessage-age %.2fs, max-age %.2fs"
", hello-time %.2fs, forwarding-delay %.2fs",
(float) EXTRACT_BE_U_2(stp_bpdu->message_age) / STP_TIME_BASE,
(float) EXTRACT_BE_U_2(stp_bpdu->max_age) / STP_TIME_BASE,
(float) EXTRACT_BE_U_2(stp_bpdu->hello_time) / STP_TIME_BASE,
(float) EXTRACT_BE_U_2(stp_bpdu->forward_delay) / STP_TIME_BASE);
ND_TCHECK_2(ptr + MST_BPDU_VER3_LEN_OFFSET);
ND_PRINT("\n\tv3len %u, ", EXTRACT_BE_U_2(ptr + MST_BPDU_VER3_LEN_OFFSET));
ND_TCHECK_4(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 12);
ND_PRINT("MCID Name ");
if (fn_printzp(ndo, ptr + MST_BPDU_CONFIG_NAME_OFFSET, 32, ndo->ndo_snapend))
goto trunc;
ND_PRINT(", rev %u,"
"\n\t\tdigest %08x%08x%08x%08x, ",
EXTRACT_BE_U_2(ptr + MST_BPDU_CONFIG_NAME_OFFSET + 32),
EXTRACT_BE_U_4(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET),
EXTRACT_BE_U_4(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 4),
EXTRACT_BE_U_4(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 8),
EXTRACT_BE_U_4(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 12));
ND_TCHECK_4(ptr + MST_BPDU_CIST_INT_PATH_COST_OFFSET);
ND_PRINT("CIST int-root-pathcost %u,",
EXTRACT_BE_U_4(ptr + MST_BPDU_CIST_INT_PATH_COST_OFFSET));
ND_TCHECK_BRIDGE_ID(ptr + MST_BPDU_CIST_BRIDGE_ID_OFFSET);
ND_PRINT("\n\tCIST bridge-id %s, ",
stp_print_bridge_id(ptr + MST_BPDU_CIST_BRIDGE_ID_OFFSET));
ND_TCHECK_1(ptr + MST_BPDU_CIST_REMAIN_HOPS_OFFSET);
ND_PRINT("CIST remaining-hops %u", EXTRACT_U_1(ptr + MST_BPDU_CIST_REMAIN_HOPS_OFFSET));
/* Dump all MSTI's */
ND_TCHECK_2(ptr + MST_BPDU_VER3_LEN_OFFSET);
v3len = EXTRACT_BE_U_2(ptr + MST_BPDU_VER3_LEN_OFFSET);
if (v3len > MST_BPDU_CONFIG_INFO_LENGTH) {
len = v3len - MST_BPDU_CONFIG_INFO_LENGTH;
offset = MST_BPDU_MSTI_OFFSET;
while (len >= MST_BPDU_MSTI_LENGTH) {
ND_TCHECK_LEN(ptr + offset, MST_BPDU_MSTI_LENGTH);
msti = EXTRACT_BE_U_2(ptr + offset + MST_BPDU_MSTI_ROOT_PRIO_OFFSET);
msti = msti & 0x0FFF;
ND_PRINT("\n\tMSTI %u, Flags [%s], port-role %s",
msti, bittok2str(stp_bpdu_flag_values, "none", EXTRACT_U_1(ptr + offset)),
tok2str(rstp_obj_port_role_values, "Unknown",
RSTP_EXTRACT_PORT_ROLE(EXTRACT_U_1(ptr + offset))));
ND_PRINT("\n\t\tMSTI regional-root-id %s, pathcost %u",
stp_print_bridge_id(ptr + offset +
MST_BPDU_MSTI_ROOT_PRIO_OFFSET),
EXTRACT_BE_U_4(ptr + offset + MST_BPDU_MSTI_ROOT_PATH_COST_OFFSET));
ND_PRINT("\n\t\tMSTI bridge-prio %u, port-prio %u, hops %u",
EXTRACT_U_1(ptr + offset + MST_BPDU_MSTI_BRIDGE_PRIO_OFFSET) >> 4,
EXTRACT_U_1(ptr + offset + MST_BPDU_MSTI_PORT_PRIO_OFFSET) >> 4,
EXTRACT_U_1(ptr + offset + MST_BPDU_MSTI_REMAIN_HOPS_OFFSET));
len -= MST_BPDU_MSTI_LENGTH;
offset += MST_BPDU_MSTI_LENGTH;
}
}
static void
stp_print_mstp_bpdu(const struct stp_bpdu_ *stp_bpdu, u_int length)
{
const u_char *ptr;
u_int16_t v3len;
u_int16_t len;
u_int16_t msti;
u_int offset;
ptr = (const u_char *)stp_bpdu;
printf(", CIST Flags [%s], length %u",
bittok2str(stp_bpdu_flag_values, "none", stp_bpdu->flags), length);
/*
* in non-verbose mode just print the flags.
*/
if (!vflag) {
return;
}
printf("\n\tport-role %s, ",
tok2str(rstp_obj_port_role_values, "Unknown",
RSTP_EXTRACT_PORT_ROLE(stp_bpdu->flags)));
printf("CIST root-id %s, CIST ext-pathcost %u ",
stp_print_bridge_id((const u_char *)&stp_bpdu->root_id),
EXTRACT_32BITS(&stp_bpdu->root_path_cost));
printf("\n\tCIST regional-root-id %s, ",
stp_print_bridge_id((const u_char *)&stp_bpdu->bridge_id));
printf("CIST port-id %04x, ", EXTRACT_16BITS(&stp_bpdu->port_id));
printf("\n\tmessage-age %.2fs, max-age %.2fs"
", hello-time %.2fs, forwarding-delay %.2fs",
(float)EXTRACT_16BITS(&stp_bpdu->message_age) / STP_TIME_BASE,
(float)EXTRACT_16BITS(&stp_bpdu->max_age) / STP_TIME_BASE,
(float)EXTRACT_16BITS(&stp_bpdu->hello_time) / STP_TIME_BASE,
(float)EXTRACT_16BITS(&stp_bpdu->forward_delay) / STP_TIME_BASE);
printf ("\n\tv3len %d, ", EXTRACT_16BITS(ptr + MST_BPDU_VER3_LEN_OFFSET));
printf("MCID Name %s, rev %u, "
"\n\t\tdigest %08x%08x%08x%08x, ",
ptr + MST_BPDU_CONFIG_NAME_OFFSET,
EXTRACT_16BITS(ptr + MST_BPDU_CONFIG_NAME_OFFSET + 32),
EXTRACT_32BITS(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET),
EXTRACT_32BITS(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 4),
EXTRACT_32BITS(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 8),
EXTRACT_32BITS(ptr + MST_BPDU_CONFIG_DIGEST_OFFSET + 12));
printf ("CIST int-root-pathcost %u, ",
EXTRACT_32BITS(ptr + MST_BPDU_CIST_INT_PATH_COST_OFFSET));
printf("\n\tCIST bridge-id %s, ",
stp_print_bridge_id(ptr + MST_BPDU_CIST_BRIDGE_ID_OFFSET));
printf("CIST remaining-hops %d", ptr[MST_BPDU_CIST_REMAIN_HOPS_OFFSET]);
/* Dump all MSTI's */
v3len = EXTRACT_16BITS(ptr + MST_BPDU_VER3_LEN_OFFSET);
if (v3len > MST_BPDU_CONFIG_INFO_LENGTH) {
len = v3len - MST_BPDU_CONFIG_INFO_LENGTH;
offset = MST_BPDU_MSTI_OFFSET;
while (len >= MST_BPDU_MSTI_LENGTH) {
msti = EXTRACT_16BITS(ptr + offset +
MST_BPDU_MSTI_ROOT_PRIO_OFFSET);
msti = msti & 0x0FFF;
printf("\n\tMSTI %d, Flags [%s], port-role %s",
msti, bittok2str(stp_bpdu_flag_values, "none", ptr[offset]),
tok2str(rstp_obj_port_role_values, "Unknown",
RSTP_EXTRACT_PORT_ROLE(ptr[offset])));
printf("\n\t\tMSTI regional-root-id %s, pathcost %u",
stp_print_bridge_id(ptr + offset +
MST_BPDU_MSTI_ROOT_PRIO_OFFSET),
EXTRACT_32BITS(ptr + offset +
MST_BPDU_MSTI_ROOT_PATH_COST_OFFSET));
printf("\n\t\tMSTI bridge-prio %d, port-prio %d, hops %d",
ptr[offset + MST_BPDU_MSTI_BRIDGE_PRIO_OFFSET] >> 4,
ptr[offset + MST_BPDU_MSTI_PORT_PRIO_OFFSET] >> 4,
ptr[offset + MST_BPDU_MSTI_REMAIN_HOPS_OFFSET]);
len -= MST_BPDU_MSTI_LENGTH;
offset += MST_BPDU_MSTI_LENGTH;
}
}