static int node_list_cb(const struct nlmsghdr *nlh, void *data)
{
uint32_t addr;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_NODE_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_NODE])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_NODE], parse_attrs, attrs);
if (!attrs[TIPC_NLA_NODE_ADDR])
return MNL_CB_ERROR;
addr = mnl_attr_get_u32(attrs[TIPC_NLA_NODE_ADDR]);
printf("<%u.%u.%u>: ",
tipc_zone(addr),
tipc_cluster(addr),
tipc_node(addr));
if (attrs[TIPC_NLA_NODE_UP])
printf("up\n");
else
printf("down\n");
return MNL_CB_OK;
}
static int link_mon_summary_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
open_json_object(NULL);
print_string(PRINT_ANY, "bearer", "\nbearer %s\n",
mnl_attr_get_str(attrs[TIPC_NLA_MON_BEARER_NAME]));
print_uint(PRINT_ANY, "table_generation", " table_generation %u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_LISTGEN]));
print_uint(PRINT_ANY, "cluster_size", " cluster_size %u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEERCNT]));
print_string(PRINT_ANY, "algorithm", " algorithm %s\n",
attrs[TIPC_NLA_MON_ACTIVE] ? "overlapping-ring" : "full-mesh");
close_json_object();
return MNL_CB_OK;
}
static int res_no_args_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct rd *rd = data;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] ||
!tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
!tb[RDMA_NLDEV_ATTR_RES_SUMMARY])
return MNL_CB_ERROR;
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
if (rd->json_output) {
jsonw_uint_field(rd->jw, "ifindex", idx);
jsonw_string_field(rd->jw, "ifname", name);
} else {
pr_out("%u: %s: ", idx, name);
}
res_print_summary(rd, tb);
if (!rd->json_output)
pr_out("\n");
return MNL_CB_OK;
}
static int data_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[CTA_MAX+1] = {};
struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*nfg), data_attr_cb, tb);
if (tb[CTA_TUPLE_ORIG])
print_tuple(tb[CTA_TUPLE_ORIG]);
if (tb[CTA_MARK])
printf("mark=%u ", ntohl(mnl_attr_get_u32(tb[CTA_MARK])));
if (tb[CTA_SECMARK])
printf("secmark=%u ", ntohl(mnl_attr_get_u32(tb[CTA_SECMARK])));
if (tb[CTA_COUNTERS_ORIG]) {
printf("original ");
print_counters(tb[CTA_COUNTERS_ORIG]);
}
if (tb[CTA_COUNTERS_REPLY]) {
printf("reply ");
print_counters(tb[CTA_COUNTERS_REPLY]);
}
printf("\n");
return MNL_CB_OK;
}
static int link_mon_list_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1] = {};
char *req_bearer = data;
const char *bname;
const char title[] =
"node status monitored generation applied_node_status [non_applied_node:status]";
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
bname = mnl_attr_get_str(attrs[TIPC_NLA_MON_BEARER_NAME]);
if (*req_bearer && (strcmp(req_bearer, bname) != 0))
return MNL_CB_OK;
open_json_object(NULL);
print_string(PRINT_ANY, "bearer", "\nbearer %s\n", bname);
print_string(PRINT_FP, NULL, "%s\n", title);
open_json_array(PRINT_JSON, bname);
if (mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEERCNT]))
link_mon_peer_list(mnl_attr_get_u32(attrs[TIPC_NLA_MON_REF]));
close_json_array(PRINT_JSON, bname);
close_json_object();
return MNL_CB_OK;
}
static int link_stat_show_cb(const struct nlmsghdr *nlh, void *data)
{
const char *name;
const char *link = data;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
struct nlattr *prop[TIPC_NLA_PROP_MAX + 1] = {};
struct nlattr *stats[TIPC_NLA_STATS_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_NAME] || !attrs[TIPC_NLA_LINK_PROP] ||
!attrs[TIPC_NLA_LINK_STATS])
return MNL_CB_ERROR;
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, prop);
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_STATS], parse_attrs, stats);
name = mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]);
/* If a link is passed, skip all but that link */
if (link && (strcmp(name, link) != 0))
return MNL_CB_OK;
if (attrs[TIPC_NLA_LINK_BROADCAST]) {
return _show_bc_link_stat(name, prop, stats);
}
return _show_link_stat(name, attrs, prop, stats);
}
int res_pd_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct nlattr *nla_table, *nla_entry;
struct rd *rd = data;
int ret = MNL_CB_OK;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
!tb[RDMA_NLDEV_ATTR_RES_PD])
return MNL_CB_ERROR;
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
nla_table = tb[RDMA_NLDEV_ATTR_RES_PD];
mnl_attr_for_each_nested(nla_entry, nla_table) {
struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
if (ret != MNL_CB_OK)
break;
ret = res_pd_line(rd, name, idx, nla_line);
if (ret != MNL_CB_OK)
break;
}
return ret;
}
//Function which parses the netlink message (*ADDR) we have received and extract
//relevant information, which is parsed to OS-independent
//neat_addr_update_src_list
static void neat_linux_handle_addr(struct neat_ctx *nc,
struct nlmsghdr *nl_hdr)
{
struct ifaddrmsg *ifm = (struct ifaddrmsg*) mnl_nlmsg_get_payload(nl_hdr);
const struct nlattr *attr_table[IFA_MAX+1];
//IFA_MAX is the largest index I can store in my array. Since arrays are
//zero-indexed, this is IFA_MAX and not IFA_MAX + 1. However, array has to
//be of size IFA_MAX + 1. DOH!
struct nlattr_storage tb_storage = {attr_table, IFA_MAX};
struct sockaddr_storage src_addr;
struct sockaddr_in *src_addr4;
struct sockaddr_in6 *src_addr6;
struct ifa_cacheinfo *ci;
uint32_t *addr6_ptr, ifa_pref = 0, ifa_valid = 0;
uint8_t i;
//On Linux, lo has a fixed index. We have no interest in that interface
//TODO: Consider other filters - bridges, ifb, ...
if (ifm->ifa_index == LO_DEV_IDX)
return;
if (ifm->ifa_scope == RT_SCOPE_LINK)
return;
memset(attr_table, 0, sizeof(attr_table));
memset(&src_addr, 0, sizeof(src_addr));
if (mnl_attr_parse(nl_hdr, sizeof(struct ifaddrmsg),
neat_linux_parse_nlattr, &tb_storage) != MNL_CB_OK) {
fprintf(stderr, "Failed to parse nlattr for msg of type %d\n",
nl_hdr->nlmsg_type);
return;
}
//v4 and v6 has to be handled differently, both due to address size and
//available information
if (ifm->ifa_family == AF_INET) {
src_addr4 = (struct sockaddr_in*) &src_addr;
src_addr4->sin_family = AF_INET;
src_addr4->sin_addr.s_addr = mnl_attr_get_u32(attr_table[IFA_LOCAL]);
} else {
src_addr6 = (struct sockaddr_in6*) &src_addr;
src_addr6->sin6_family = AF_INET6;
addr6_ptr = (uint32_t*) mnl_attr_get_payload(attr_table[IFA_ADDRESS]);
for (i=0; i<4; i++)
src_addr6->sin6_addr.s6_addr32[i] = *(addr6_ptr + i);
ci = (struct ifa_cacheinfo*) mnl_attr_get_payload(attr_table[IFA_CACHEINFO]);
ifa_pref = ci->ifa_prefered;
ifa_valid = ci->ifa_valid;
}
//TODO: Should this function be a callback instead? Will we have multiple
//addresses handlers/types of context?
neat_addr_update_src_list(nc, &src_addr, ifm->ifa_index,
nl_hdr->nlmsg_type == RTM_NEWADDR, ifa_pref, ifa_valid);
}
static int data_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr **tb = (struct nlattr **)data;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*genl), parse_attr_cb, tb);
return MNL_CB_OK;
}
static int link_mon_peer_list_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *attrs[TIPC_NLA_MON_PEER_MAX + 1] = {};
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
uint16_t member_cnt;
uint32_t applied;
uint32_t dom_gen;
uint64_t up_map;
char status[16];
char monitored[16];
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON_PEER])
return MNL_CB_ERROR;
open_json_object(NULL);
mnl_attr_parse_nested(info[TIPC_NLA_MON_PEER], parse_attrs, attrs);
(attrs[TIPC_NLA_MON_PEER_LOCAL] || attrs[TIPC_NLA_MON_PEER_HEAD]) ?
strcpy(monitored, "direct") :
strcpy(monitored, "indirect");
attrs[TIPC_NLA_MON_PEER_UP] ?
strcpy(status, "up") :
strcpy(status, "down");
dom_gen = attrs[TIPC_NLA_MON_PEER_DOMGEN] ?
mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_DOMGEN]) : 0;
link_mon_print_peer_state(mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_ADDR]),
status, monitored, dom_gen);
applied = mnl_attr_get_u32(attrs[TIPC_NLA_MON_PEER_APPLIED]);
if (!applied)
goto exit;
up_map = mnl_attr_get_u64(attrs[TIPC_NLA_MON_PEER_UPMAP]);
member_cnt = mnl_attr_get_payload_len(attrs[TIPC_NLA_MON_PEER_MEMBERS]);
/* each tipc address occupies 4 bytes of payload, hence compensate it */
member_cnt /= sizeof(uint32_t);
link_mon_print_applied(applied, up_map);
link_mon_print_non_applied(applied, member_cnt, up_map,
mnl_attr_get_payload(attrs[TIPC_NLA_MON_PEER_MEMBERS]));
exit:
print_string(PRINT_FP, NULL, "\n", "");
close_json_object();
return MNL_CB_OK;
}
int nfexp_nlmsg_parse(const struct nlmsghdr *nlh, struct nf_expect *exp)
{
struct nlattr *tb[CTA_EXPECT_MAX+1] = {};
struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(struct nfgenmsg),
nlmsg_parse_expection_attr_cb, tb);
if (tb[CTA_EXPECT_MASTER]) {
exp->expected.orig.l3protonum = nfg->nfgen_family;
set_bit(ATTR_ORIG_L3PROTO, exp->expected.set);
nfct_parse_tuple(tb[CTA_EXPECT_MASTER], &exp->master.orig,
__DIR_ORIG, exp->master.set);
set_bit(ATTR_EXP_MASTER, exp->set);
}
if (tb[CTA_EXPECT_TUPLE]) {
exp->mask.orig.l3protonum = nfg->nfgen_family;
set_bit(ATTR_ORIG_L3PROTO, exp->mask.set);
nfct_parse_tuple(tb[CTA_EXPECT_TUPLE], &exp->expected.orig,
__DIR_ORIG, exp->expected.set);
set_bit(ATTR_EXP_EXPECTED, exp->set);
}
if (tb[CTA_EXPECT_MASK]) {
exp->master.orig.l3protonum = nfg->nfgen_family;
set_bit(ATTR_ORIG_L3PROTO, exp->master.set);
nfct_parse_tuple(tb[CTA_EXPECT_MASK], &exp->mask.orig,
__DIR_ORIG, exp->mask.set);
set_bit(ATTR_EXP_MASK, exp->set);
}
if (tb[CTA_EXPECT_TIMEOUT]) {
exp->timeout = ntohl(mnl_attr_get_u32(tb[CTA_EXPECT_TIMEOUT]));
set_bit(ATTR_EXP_TIMEOUT, exp->set);
}
if (tb[CTA_EXPECT_ZONE]) {
exp->zone = ntohs(mnl_attr_get_u16(tb[CTA_EXPECT_ZONE]));
set_bit(ATTR_EXP_ZONE, exp->set);
}
if (tb[CTA_EXPECT_FLAGS]) {
exp->flags = ntohl(mnl_attr_get_u32(tb[CTA_EXPECT_FLAGS]));
set_bit(ATTR_EXP_FLAGS, exp->set);
}
if (tb[CTA_EXPECT_HELP_NAME]) {
strncpy(exp->helper_name,
mnl_attr_get_str(tb[CTA_EXPECT_HELP_NAME]),
NFCT_HELPER_NAME_MAX);
set_bit(ATTR_EXP_HELPER_NAME, exp->set);
}
return 0;
}
static int cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[NLE_MAX];
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*genl), data_attr_cb, tb);
if (tb[NLE_MYVAR])
printf("myvar=%d\n", mnl_attr_get_u32(tb[NLE_MYVAR]));
return MNL_CB_OK;
}
static int get_group_id_cb(const struct nlmsghdr *nlh, void *data)
{
struct group_info *group_info = data;
struct nlattr *tb[CTRL_ATTR_MAX + 1] = {};
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*genl), get_group_id_attr_cb, tb);
if (!tb[CTRL_ATTR_MCAST_GROUPS])
return MNL_CB_ERROR;
parse_genl_mc_grps(tb[CTRL_ATTR_MCAST_GROUPS], group_info);
return MNL_CB_OK;
}
static int get_family_id_cb(const struct nlmsghdr *nlh, void *data)
{
uint32_t *p_id = data;
struct nlattr *tb[CTRL_ATTR_MAX + 1] = {};
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*genl), get_family_id_attr_cb, tb);
if (!tb[CTRL_ATTR_FAMILY_ID])
return MNL_CB_ERROR;
*p_id = mnl_attr_get_u16(tb[CTRL_ATTR_FAMILY_ID]);
return MNL_CB_OK;
}
//Function which parses the netlink message (*ADDR) we have received and extract
//relevant information, which is parsed to OS-independent
//neat_addr_update_src_list
static neat_error_code
nt_linux_handle_addr(struct neat_ctx *ctx, struct nlmsghdr *nl_hdr)
{
struct ifaddrmsg *ifm = (struct ifaddrmsg*) mnl_nlmsg_get_payload(nl_hdr);
const struct nlattr *attr_table[IFA_MAX+1];
//IFA_MAX is the largest index I can store in my array. Since arrays are
//zero-indexed, this is IFA_MAX and not IFA_MAX + 1. However, array has to
//be of size IFA_MAX + 1. DOH!
struct nlattr_storage tb_storage = {attr_table, IFA_MAX};
struct sockaddr_storage src_addr;
struct sockaddr_in *src_addr4;
struct sockaddr_in6 *src_addr6;
struct ifa_cacheinfo *ci;
uint32_t ifa_pref = 0, ifa_valid = 0;
if (ifm->ifa_scope == RT_SCOPE_LINK)
return NEAT_ERROR_OK;
memset(attr_table, 0, sizeof(attr_table));
memset(&src_addr, 0, sizeof(src_addr));
if (mnl_attr_parse(nl_hdr, sizeof(struct ifaddrmsg),
neat_linux_parse_nlattr, &tb_storage) != MNL_CB_OK) {
nt_log(ctx, NEAT_LOG_ERROR, "Failed to parse nlattr for msg of type %d",
__func__, nl_hdr->nlmsg_type);
return NEAT_ERROR_OK;
}
//v4 and v6 has to be handled differently, both due to address size and
//available information
if (ifm->ifa_family == AF_INET) {
src_addr4 = (struct sockaddr_in*) &src_addr;
src_addr4->sin_family = AF_INET;
src_addr4->sin_addr.s_addr = mnl_attr_get_u32(attr_table[IFA_LOCAL]);
} else {
src_addr6 = (struct sockaddr_in6*) &src_addr;
src_addr6->sin6_family = AF_INET6;
memcpy(&src_addr6->sin6_addr, mnl_attr_get_payload(attr_table[IFA_ADDRESS]), sizeof(struct in6_addr));
ci = (struct ifa_cacheinfo*) mnl_attr_get_payload(attr_table[IFA_CACHEINFO]);
ifa_pref = ci->ifa_prefered;
ifa_valid = ci->ifa_valid;
}
//TODO: Should this function be a callback instead? Will we have multiple
//addresses handlers/types of context?
return nt_addr_update_src_list(ctx, (struct sockaddr*) &src_addr, ifm->ifa_index,
nl_hdr->nlmsg_type == RTM_NEWADDR,
ifm->ifa_prefixlen, ifa_pref, ifa_valid);
}
int nftnl_gen_nlmsg_parse(const struct nlmsghdr *nlh, struct nftnl_gen *gen)
{
struct nlattr *tb[NFTA_GEN_MAX + 1] = {};
struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh);
if (mnl_attr_parse(nlh, sizeof(*nfg), nftnl_gen_parse_attr_cb, tb) < 0)
return -1;
if (tb[NFTA_GEN_ID]) {
gen->id = ntohl(mnl_attr_get_u32(tb[NFTA_GEN_ID]));
gen->flags |= (1 << NFTNL_GEN_ID);
}
return 0;
}
static int genl_ctrl_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[CTRL_ATTR_MAX + 1] = {};
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
int32_t *genl_id = data;
mnl_attr_parse(nlh, sizeof(*genl), genl_ctrl_validate_cb, tb);
if (tb[CTRL_ATTR_FAMILY_ID])
*genl_id = mnl_attr_get_u16(tb[CTRL_ATTR_FAMILY_ID]);
else
*genl_id = -1;
return MNL_CB_OK;
}
static int queue_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[NFQA_MAX+1] = {};
struct nfqnl_msg_packet_hdr *ph = NULL;
uint32_t id = 0;
mnl_attr_parse(nlh, sizeof(struct nfgenmsg), parse_attr_cb, tb);
if (tb[NFQA_PACKET_HDR]) {
ph = mnl_attr_get_payload(tb[NFQA_PACKET_HDR]);
id = ntohl(ph->packet_id);
}
printf("packet received (id=%u hw=0x%04x hook=%u)\n",
id, ntohs(ph->hw_protocol), ph->hook);
return MNL_CB_OK + id;
}
int res_pd_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct rd *rd = data;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
return MNL_CB_ERROR;
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
return res_pd_line(rd, name, idx, tb);
}
static int data_cb(const struct nlmsghdr *nlh, void *data)
{
struct ifinfomsg *ifm = mnl_nlmsg_get_payload(nlh);
printf("index=%d type=%d flags=%d family=%d ",
ifm->ifi_index, ifm->ifi_type,
ifm->ifi_flags, ifm->ifi_family);
if (ifm->ifi_flags & IFF_RUNNING)
printf("[RUNNING] ");
else
printf("[NOT RUNNING] ");
mnl_attr_parse(nlh, sizeof(*ifm), data_attr_cb, NULL);
printf("\n");
return MNL_CB_OK;
}
static int nametable_show_cb(const struct nlmsghdr *nlh, void *data)
{
int *iteration = data;
char port_id[PORTID_STR_LEN];
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_NAME_TABLE_MAX + 1] = {};
struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1] = {};
const char *scope[] = { "", "zone", "cluster", "node" };
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_NAME_TABLE])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_NAME_TABLE], parse_attrs, attrs);
if (!attrs[TIPC_NLA_NAME_TABLE_PUBL])
return MNL_CB_ERROR;
mnl_attr_parse_nested(attrs[TIPC_NLA_NAME_TABLE_PUBL], parse_attrs, publ);
if (!publ[TIPC_NLA_NAME_TABLE_PUBL])
return MNL_CB_ERROR;
if (!*iteration)
printf("%-10s %-10s %-10s %-26s %-10s\n",
"Type", "Lower", "Upper", "Port Identity",
"Publication Scope");
(*iteration)++;
snprintf(port_id, sizeof(port_id), "<%u.%u.%u:%u>",
tipc_zone(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE])),
tipc_cluster(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE])),
tipc_node(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE])),
mnl_attr_get_u32(publ[TIPC_NLA_PUBL_REF]));
printf("%-10u %-10u %-10u %-26s %-12u",
mnl_attr_get_u32(publ[TIPC_NLA_PUBL_TYPE]),
mnl_attr_get_u32(publ[TIPC_NLA_PUBL_LOWER]),
mnl_attr_get_u32(publ[TIPC_NLA_PUBL_UPPER]),
port_id,
mnl_attr_get_u32(publ[TIPC_NLA_PUBL_KEY]));
printf("%s\n", scope[mnl_attr_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]);
return MNL_CB_OK;
}
static int netid_get_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_NET])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs);
if (!attrs[TIPC_NLA_NET_ID])
return MNL_CB_ERROR;
printf("%u\n", mnl_attr_get_u32(attrs[TIPC_NLA_NET_ID]));
return MNL_CB_OK;
}
/**
* nfacct_nlmsg_parse_payload - set accounting object attributes from message
* \param nlh: netlink message that you want to use to add the payload.
* \param nfacct: pointer to a accounting object
*
* This function returns -1 in case that some mandatory attributes are
* missing. On sucess, it returns 0.
*/
int
nfacct_nlmsg_parse_payload(const struct nlmsghdr *nlh, struct nfacct *nfacct)
{
struct nlattr *tb[NFACCT_MAX+1] = {};
struct nfgenmsg *nfg = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*nfg), nfacct_nlmsg_parse_attr_cb, tb);
if (!tb[NFACCT_NAME] && !tb[NFACCT_PKTS] && !tb[NFACCT_BYTES])
return -1;
nfacct_attr_set_str(nfacct, NFACCT_ATTR_NAME,
mnl_attr_get_str(tb[NFACCT_NAME]));
nfacct_attr_set_u64(nfacct, NFACCT_ATTR_PKTS,
be64toh(mnl_attr_get_u64(tb[NFACCT_PKTS])));
nfacct_attr_set_u64(nfacct, NFACCT_ATTR_BYTES,
be64toh(mnl_attr_get_u64(tb[NFACCT_BYTES])));
return 0;
}
static int link_mon_get_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_MON_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_MON])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_MON], parse_attrs, attrs);
if (!attrs[TIPC_NLA_MON_ACTIVATION_THRESHOLD])
return MNL_CB_ERROR;
new_json_obj(json);
print_uint(PRINT_ANY, "threshold", "%u\n",
mnl_attr_get_u32(attrs[TIPC_NLA_MON_ACTIVATION_THRESHOLD]));
delete_json_obj();
return MNL_CB_OK;
}
static int log_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[NFULA_MAX+1] = {};
struct nfulnl_msg_packet_hdr *ph = NULL;
const char *prefix = NULL;
uint32_t mark = 0;
mnl_attr_parse(nlh, sizeof(struct nfgenmsg), parse_attr_cb, tb);
if (tb[NFULA_PACKET_HDR])
ph = mnl_attr_get_payload(tb[NFULA_PACKET_HDR]);
if (tb[NFULA_PREFIX])
prefix = mnl_attr_get_str(tb[NFULA_PREFIX]);
if (tb[NFULA_MARK])
mark = ntohl(mnl_attr_get_u32(tb[NFULA_MARK]));
printf("log received (prefix=\"%s\" hw=0x%04x hook=%u mark=%u)\n",
prefix ? prefix : "", ntohs(ph->hw_protocol), ph->hook,
mark);
return MNL_CB_OK;
}
static int link_get_cb(const struct nlmsghdr *nlh, void *data)
{
int *prop = data;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
struct nlattr *props[TIPC_NLA_PROP_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_PROP])
return MNL_CB_ERROR;
mnl_attr_parse_nested(attrs[TIPC_NLA_LINK_PROP], parse_attrs, props);
if (!props[*prop])
return MNL_CB_ERROR;
new_json_obj(json);
open_json_object(NULL);
switch (*prop) {
case TIPC_NLA_PROP_PRIO:
print_uint(PRINT_ANY, PRIORITY_STR, "%u\n", mnl_attr_get_u32(props[*prop]));
break;
case TIPC_NLA_PROP_TOL:
print_uint(PRINT_ANY, TOLERANCE_STR, "%u\n", mnl_attr_get_u32(props[*prop]));
break;
case TIPC_NLA_PROP_WIN:
print_uint(PRINT_ANY, WINDOW_STR, "%u\n", mnl_attr_get_u32(props[*prop]));
break;
default:
break;
}
close_json_object();
delete_json_obj();
return MNL_CB_OK;
}
static int data_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[CTRL_ATTR_MAX+1] = {};
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
mnl_attr_parse(nlh, sizeof(*genl), data_attr_cb, tb);
if (tb[CTRL_ATTR_FAMILY_NAME]) {
printf("name=%s\t",
mnl_attr_get_str(tb[CTRL_ATTR_FAMILY_NAME]));
}
if (tb[CTRL_ATTR_FAMILY_ID]) {
printf("id=%u\t",
mnl_attr_get_u16(tb[CTRL_ATTR_FAMILY_ID]));
}
if (tb[CTRL_ATTR_VERSION]) {
printf("version=%u\t",
mnl_attr_get_u32(tb[CTRL_ATTR_VERSION]));
}
if (tb[CTRL_ATTR_HDRSIZE]) {
printf("hdrsize=%u\t",
mnl_attr_get_u32(tb[CTRL_ATTR_HDRSIZE]));
}
if (tb[CTRL_ATTR_MAXATTR]) {
printf("maxattr=%u\t",
mnl_attr_get_u32(tb[CTRL_ATTR_MAXATTR]));
}
printf("\n");
if (tb[CTRL_ATTR_OPS]) {
printf("ops:\n");
parse_genl_family_ops(tb[CTRL_ATTR_OPS]);
}
if (tb[CTRL_ATTR_MCAST_GROUPS]) {
printf("grps:\n");
parse_genl_mc_grps(tb[CTRL_ATTR_MCAST_GROUPS]);
}
printf("\n");
return MNL_CB_OK;
}
static int data_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[IFLA_MAX+1] = {};
struct ifinfomsg *ifm = mnl_nlmsg_get_payload(nlh);
printf("index=%d type=%d flags=%d family=%d ",
ifm->ifi_index, ifm->ifi_type,
ifm->ifi_flags, ifm->ifi_family);
if (ifm->ifi_flags & IFF_RUNNING)
printf("[RUNNING] ");
else
printf("[NOT RUNNING] ");
mnl_attr_parse(nlh, sizeof(*ifm), data_attr_cb, tb);
if (tb[IFLA_MTU]) {
printf("mtu=%d ", mnl_attr_get_u32(tb[IFLA_MTU]));
}
if (tb[IFLA_IFNAME]) {
printf("name=%s", mnl_attr_get_str(tb[IFLA_IFNAME]));
}
printf("\n");
return MNL_CB_OK;
}
static int link_list_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_LINK])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_LINK], parse_attrs, attrs);
if (!attrs[TIPC_NLA_LINK_NAME])
return MNL_CB_ERROR;
print_string(PRINT_FP, NULL, "%s: ",
mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]));
if (attrs[TIPC_NLA_LINK_UP])
print_string(PRINT_ANY,
mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]),"%s\n", "up");
else
print_string(PRINT_ANY,
mnl_attr_get_str(attrs[TIPC_NLA_LINK_NAME]), "%s\n", "down");
return MNL_CB_OK;
}
static int log_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[NFULA_MAX+1] = {};
mnl_attr_parse(nlh, sizeof(struct nfgenmsg), parse_attr_cb, tb);
if (tb[NFULA_PREFIX]) {
const char *prefix = mnl_attr_get_str(tb[NFULA_PREFIX]);
printf("%s ", prefix);
}
if (tb[NFULA_IFINDEX_INDEV]) {
uint32_t indev = ntohl(mnl_attr_get_u32(tb[NFULA_IFINDEX_INDEV]));
char *instr = get_net_device_name_by_index(indev);
printf("IN=%s ", instr ? instr : "");
} else {
printf("IN= ");
}
if (tb[NFULA_IFINDEX_OUTDEV]) {
uint32_t outdev = ntohl(mnl_attr_get_u32(tb[NFULA_IFINDEX_OUTDEV]));
char *outstr = get_net_device_name_by_index(outdev);
printf("OUT=%s ", outstr ? outstr : "");
} else {
printf("OUT= ");
}
if (tb[NFULA_PAYLOAD]) {
struct iphdr *iph = (struct iphdr *) mnl_attr_get_payload(tb[NFULA_PAYLOAD]);
printf("SRC=%u.%u.%u.%u DST=%u.%u.%u.%u ",
((unsigned char *)&iph->saddr)[0],
((unsigned char *)&iph->saddr)[1],
((unsigned char *)&iph->saddr)[2],
((unsigned char *)&iph->saddr)[3],
((unsigned char *)&iph->daddr)[0],
((unsigned char *)&iph->daddr)[1],
((unsigned char *)&iph->daddr)[2],
((unsigned char *)&iph->daddr)[3]);
printf("LEN=%u ", ntohs(iph->tot_len));
switch(iph->protocol)
{
case IPPROTO_TCP:
{
struct tcphdr *th = (struct tcphdr *) ((__u32 *) iph + iph->ihl);
printf("PROTO=TCP SPT=%u DPT=%u ",
ntohs(th->source), ntohs(th->dest));
break;
}
case IPPROTO_UDP:
{
struct udphdr *uh = (struct udphdr *) ((__u32 *) iph + iph->ihl);
printf("PROTO=UDP SPT=%u DPT=%u LEN=%u ",
ntohs(uh->source), ntohs(uh->dest), ntohs(uh->len));
break;
}
case IPPROTO_ICMP:
{
struct icmphdr *ich = (struct icmphdr *) ((__u32 *) iph + iph->ihl);
printf("PROTO=ICMP TYPE=%u CODE=%u ",
ich->type, ich->code);
break;
}
default:
{
printf("PROTO=%u ", iph->protocol);
}
}
}
if (tb[NFULA_UID]) {
uint32_t uid = ntohl(mnl_attr_get_u32(tb[NFULA_UID]));
printf("UID=%u ", uid);
}
puts("");
return MNL_CB_OK;
}
