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Diffstat (limited to 'proto_nlmsg.c')
-rw-r--r--proto_nlmsg.c227
1 files changed, 214 insertions, 13 deletions
diff --git a/proto_nlmsg.c b/proto_nlmsg.c
index e6ede8a..5a2527b 100644
--- a/proto_nlmsg.c
+++ b/proto_nlmsg.c
@@ -5,6 +5,7 @@
*/
#include <stdio.h>
+#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <libgen.h>
@@ -17,17 +18,46 @@
#include "pkt_buff.h"
#include "proto.h"
#include "protos.h"
+#include "timer.h"
#define INFINITY 0xFFFFFFFFU
#define RTA_LEN(attr) RTA_PAYLOAD(attr)
#define RTA_INT(attr) (*(int *)RTA_DATA(attr))
+#define RTA_UINT(attr) (*(unsigned int *)RTA_DATA(attr))
#define RTA_UINT8(attr) (*(uint8_t *)RTA_DATA(attr))
+#define RTA_UINT32(attr) (*(uint32_t *)RTA_DATA(attr))
#define RTA_STR(attr) ((char *)RTA_DATA(attr))
#define attr_fmt(attr, fmt, ...) \
tprintf("\tA: "fmt, ##__VA_ARGS__); \
- tprintf(", Len %u\n", RTA_LEN(attr));
+ tprintf(", Len %lu\n", RTA_LEN(attr));
+
+struct flag_name {
+ const char *name;
+ unsigned int flag;
+};
+
+static const char *flags2str(struct flag_name *tbl, unsigned int flags,
+ char *buf, int len)
+{
+ int bits_stay = flags;
+
+ memset(buf, 0, len);
+
+ for (; tbl && tbl->name; tbl++) {
+ if (!(tbl->flag & flags))
+ continue;
+
+ bits_stay &= ~tbl->flag;
+ strncat(buf, tbl->name, len - strlen(buf) - 1);
+
+ if (bits_stay & flags)
+ strncat(buf, ",", len - strlen(buf) - 1);
+ }
+
+ return buf;
+}
static const char *nlmsg_family2str(uint16_t family)
{
@@ -276,6 +306,18 @@ static const char *addr2str(uint16_t af, const void *addr, char *buf, int blen)
return "???";
}
+static const char *scope2str(uint8_t scope)
+{
+ switch (scope) {
+ case RT_SCOPE_UNIVERSE: return "global";
+ case RT_SCOPE_LINK: return "link";
+ case RT_SCOPE_HOST: return "host";
+ case RT_SCOPE_NOWHERE: return "nowhere";
+
+ default: return "Unknown";
+ }
+}
+
static void rtnl_print_ifinfo(struct nlmsghdr *hdr)
{
struct ifinfomsg *ifi = NLMSG_DATA(hdr);
@@ -385,19 +427,9 @@ static void rtnl_print_ifaddr(struct nlmsghdr *hdr)
uint32_t attrs_len = IFA_PAYLOAD(hdr);
struct rtattr *attr = IFA_RTA(ifa);
struct ifa_cacheinfo *ci;
- char *scope = "Unknown";
char addr_str[256];
char flags[256];
- if (ifa->ifa_scope == RT_SCOPE_UNIVERSE)
- scope = "global";
- else if (ifa->ifa_scope == RT_SCOPE_LINK)
- scope = "link";
- else if (ifa->ifa_scope == RT_SCOPE_HOST)
- scope = "host";
- else if (ifa->ifa_scope == RT_SCOPE_NOWHERE)
- scope = "nowhere";
-
tprintf(" [ Address Family %d (%s%s%s)", ifa->ifa_family,
colorize_start(bold),
addr_family2str(ifa->ifa_family),
@@ -409,7 +441,9 @@ static void rtnl_print_ifaddr(struct nlmsghdr *hdr)
sizeof(flags)),
colorize_end());
tprintf(", Scope %d (%s%s%s)", ifa->ifa_scope,
- colorize_start(bold), scope, colorize_end());
+ colorize_start(bold),
+ scope2str(ifa->ifa_scope),
+ colorize_end());
tprintf(", Link Index %d ]\n", ifa->ifa_index);
for (; RTA_OK(attr, attrs_len); attr = RTA_NEXT(attr, attrs_len)) {
@@ -464,7 +498,169 @@ static void rtnl_print_ifaddr(struct nlmsghdr *hdr)
tprintf(", created on(%.2fs)", (double)ci->cstamp / 100);
tprintf(", updated on(%.2fs))", (double)ci->cstamp / 100);
- tprintf(", Len %u\n", RTA_LEN(attr));
+ tprintf(", Len %lu\n", RTA_LEN(attr));
+ break;
+ }
+ }
+}
+
+static const char *route_table2str(uint8_t table)
+{
+ switch (table) {
+ case RT_TABLE_UNSPEC: return "unspec";
+ case RT_TABLE_COMPAT: return "compat";
+ case RT_TABLE_DEFAULT: return "default";
+ case RT_TABLE_MAIN: return "main";
+ case RT_TABLE_LOCAL: return "local";
+
+ default: return "Unknown";
+ }
+}
+
+static const char *route_proto2str(uint8_t proto)
+{
+ switch (proto) {
+ case RTPROT_UNSPEC: return "unspec";
+ case RTPROT_REDIRECT: return "redirect";
+ case RTPROT_KERNEL: return "kernel";
+ case RTPROT_BOOT: return "boot";
+ case RTPROT_STATIC: return "static";
+ case RTPROT_GATED: return "gated";
+ case RTPROT_RA: return "ra";
+ case RTPROT_MRT: return "mrt";
+ case RTPROT_ZEBRA: return "zebra";
+ case RTPROT_BIRD: return "bird";
+ case RTPROT_DNROUTED: return "DECnet";
+ case RTPROT_XORP: return "xorp";
+ case RTPROT_NTK: return "netsukuku";
+ case RTPROT_DHCP: return "dhcpc";
+ case RTPROT_MROUTED: return "mrouted";
+
+ default: return "Unknown";
+ }
+}
+
+static const char *route_type2str(uint8_t type)
+{
+ switch (type) {
+ case RTN_UNSPEC: return "unspec";
+ case RTN_UNICAST: return "unicast";
+ case RTN_LOCAL: return "local";
+ case RTN_BROADCAST: return "broadcast";
+ case RTN_ANYCAST: return "anycast";
+ case RTN_MULTICAST: return "multicast";
+ case RTN_BLACKHOLE: return "blackhole";
+ case RTN_UNREACHABLE: return "unreach";
+ case RTN_PROHIBIT: return "prohibit";
+ case RTN_THROW: return "throw";
+ case RTN_NAT: return "nat";
+ case RTN_XRESOLVE: return "xresolve";
+
+ default: return "Unknown";
+ }
+}
+
+static struct flag_name route_flags[] = {
+ { "notify", RTM_F_NOTIFY },
+ { "cloned", RTM_F_CLONED },
+ { "equalize", RTM_F_EQUALIZE },
+ { "prefix", RTM_F_PREFIX },
+ { "dead", RTNH_F_DEAD },
+ { "pervasive", RTNH_F_PERVASIVE },
+ { "onlink", RTNH_F_ONLINK },
+ { NULL, 0 },
+};
+
+static void rtnl_print_route(struct nlmsghdr *hdr)
+{
+ struct rtmsg *rtm = NLMSG_DATA(hdr);
+ uint32_t attrs_len = RTM_PAYLOAD(hdr);
+ struct rtattr *attr = RTM_RTA(rtm);
+ struct rta_cacheinfo *ci;
+ int hz = get_user_hz();
+ char addr_str[256];
+ char flags[256];
+
+ tprintf(" [ Route Family %d (%s%s%s)", rtm->rtm_family,
+ colorize_start(bold),
+ addr_family2str(rtm->rtm_family),
+ colorize_end());
+ tprintf(", Dst Len %d", rtm->rtm_dst_len);
+ tprintf(", Src Len %d", rtm->rtm_src_len);
+ tprintf(", ToS %d", rtm->rtm_tos);
+ tprintf(", Table %d (%s%s%s)", rtm->rtm_table,
+ colorize_start(bold),
+ route_table2str(rtm->rtm_table),
+ colorize_end());
+ tprintf(", Proto %d (%s%s%s)", rtm->rtm_protocol,
+ colorize_start(bold),
+ route_proto2str(rtm->rtm_protocol),
+ colorize_end());
+ tprintf(", Scope %d (%s%s%s)", rtm->rtm_scope,
+ colorize_start(bold),
+ scope2str(rtm->rtm_scope),
+ colorize_end());
+ tprintf(", Type %d (%s%s%s)", rtm->rtm_type,
+ colorize_start(bold),
+ route_type2str(rtm->rtm_type),
+ colorize_end());
+ tprintf(", Flags 0x%x (%s%s%s) ]\n", rtm->rtm_flags,
+ colorize_start(bold),
+ flags2str(route_flags, rtm->rtm_flags, flags,
+ sizeof(flags)),
+ colorize_end());
+
+ for (; RTA_OK(attr, attrs_len); attr = RTA_NEXT(attr, attrs_len)) {
+ switch (attr->rta_type) {
+ case RTA_DST:
+ attr_fmt(attr, "Dst %s", addr2str(rtm->rtm_family,
+ RTA_DATA(attr), addr_str, sizeof(addr_str)));
+ break;
+ case RTA_SRC:
+ attr_fmt(attr, "Src %s", addr2str(rtm->rtm_family,
+ RTA_DATA(attr), addr_str, sizeof(addr_str)));
+ break;
+ case RTA_IIF:
+ attr_fmt(attr, "Iif %d", RTA_INT(attr));
+ break;
+ case RTA_OIF:
+ attr_fmt(attr, "Oif %d", RTA_INT(attr));
+ break;
+ case RTA_GATEWAY:
+ attr_fmt(attr, "Gateway %s", addr2str(rtm->rtm_family,
+ RTA_DATA(attr), addr_str, sizeof(addr_str)));
+ break;
+ case RTA_PRIORITY:
+ attr_fmt(attr, "Priority %u", RTA_UINT32(attr));
+ break;
+ case RTA_PREFSRC:
+ attr_fmt(attr, "Pref Src %s", addr2str(rtm->rtm_family,
+ RTA_DATA(attr), addr_str, sizeof(addr_str)));
+ break;
+ case RTA_MARK:
+ attr_fmt(attr, "Mark 0x%x", RTA_UINT(attr));
+ break;
+ case RTA_FLOW:
+ attr_fmt(attr, "Flow 0x%x", RTA_UINT(attr));
+ break;
+ case RTA_TABLE:
+ attr_fmt(attr, "Table %d (%s%s%s)", RTA_UINT32(attr),
+ colorize_start(bold),
+ route_table2str(RTA_UINT32(attr)),
+ colorize_end());
+ break;
+ case RTA_CACHEINFO:
+ ci = RTA_DATA(attr);
+ tprintf("\tA: Cache (");
+ tprintf("expires(%ds)", ci->rta_expires / hz);
+ tprintf(", error(%d)", ci->rta_error);
+ tprintf(", users(%d)", ci->rta_clntref);
+ tprintf(", used(%d)", ci->rta_used);
+ tprintf(", last use(%ds)", ci->rta_lastuse / hz);
+ tprintf(", id(%d)", ci->rta_id);
+ tprintf(", ts(%d)", ci->rta_ts);
+ tprintf(", ts age(%ds))", ci->rta_tsage);
+ tprintf(", Len %lu\n", RTA_LEN(attr));
break;
}
}
@@ -484,6 +680,11 @@ static void rtnl_msg_print(struct nlmsghdr *hdr)
case RTM_GETADDR:
rtnl_print_ifaddr(hdr);
break;
+ case RTM_NEWROUTE:
+ case RTM_DELROUTE:
+ case RTM_GETROUTE:
+ rtnl_print_route(hdr);
+ break;
}
}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-07 23:22:55 +0000