* netlink.c (decode_nlmsg_flags_netfilter): New function.
(nlmsg_flags): Add NETLINK_NETFILTER.
* NEWS: Mention this.
---
NEWS | 2 +-
netlink.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 105 insertions(+), 1 deletion(-)
diff --git a/NEWS b/NEWS
index 36b26a7..fcda789 100644
--- a/NEWS
+++ b/NEWS
@@ -2,7 +2,7 @@ Noteworthy changes in release ?.?? (????-??-??)
===============================================
* Improvements
- * Implemented decoding of NETLINK_NETFILTER netlink message types.
+ * Implemented decoding of NETLINK_NETFILTER netlink message types and flags.
* Updated lists of ARPHRD_*, BPF_*, ETH_P_*, LOOP_*, MADV_*,
MEMBARRIER_CMD_*, MFD_*, SO_*, SOL_*, TCP_*, and UFFD_FEATURE_* constants.
* Updated lists of ioctl commands from Linux 4.14.
diff --git a/netlink.c b/netlink.c
index 30e52db..58d553c 100644
--- a/netlink.c
+++ b/netlink.c
@@ -254,6 +254,109 @@ decode_nlmsg_flags_crypto(const uint16_t type)
}
static const struct xlat *
+decode_nlmsg_flags_netfilter(const uint16_t type)
+{
+ const uint8_t subsys_id = (uint8_t) (type >> 8);
+ const uint8_t msg_type = (uint8_t) type;
+
+ switch (subsys_id) {
+ case NFNL_SUBSYS_CTNETLINK:
+ switch (msg_type) {
+ case IPCTNL_MSG_CT_NEW:
+ return netlink_new_flags;
+ case IPCTNL_MSG_CT_GET:
+ case IPCTNL_MSG_CT_GET_CTRZERO:
+ case IPCTNL_MSG_CT_GET_STATS_CPU:
+ case IPCTNL_MSG_CT_GET_STATS:
+ case IPCTNL_MSG_CT_GET_DYING:
+ case IPCTNL_MSG_CT_GET_UNCONFIRMED:
+ return netlink_get_flags;
+ case IPCTNL_MSG_CT_DELETE:
+ return netlink_delete_flags;
+ }
+ break;
+ case NFNL_SUBSYS_CTNETLINK_EXP:
+ switch (msg_type) {
+ case IPCTNL_MSG_EXP_NEW:
+ return netlink_new_flags;
+ case IPCTNL_MSG_EXP_GET:
+ case IPCTNL_MSG_EXP_GET_STATS_CPU:
+ return netlink_get_flags;
+ case IPCTNL_MSG_EXP_DELETE:
+ return netlink_delete_flags;
+ }
+ break;
+ case NFNL_SUBSYS_ACCT:
+ switch (msg_type) {
+ case NFNL_MSG_ACCT_NEW:
+ return netlink_new_flags;
+ case NFNL_MSG_ACCT_GET:
+ case NFNL_MSG_ACCT_GET_CTRZERO:
+ return netlink_get_flags;
+ case NFNL_MSG_ACCT_DEL:
+ return netlink_delete_flags;
+ }
+ break;
+ case NFNL_SUBSYS_CTNETLINK_TIMEOUT:
+ switch (msg_type) {
+ case IPCTNL_MSG_TIMEOUT_NEW:
+ return netlink_new_flags;
+ case IPCTNL_MSG_TIMEOUT_GET:
+ return netlink_get_flags;
+ case IPCTNL_MSG_TIMEOUT_DELETE:
+ return netlink_delete_flags;
+ }
+ break;
+ case NFNL_SUBSYS_CTHELPER:
+ switch (msg_type) {
+ case NFNL_MSG_CTHELPER_NEW:
+ return netlink_new_flags;
+ case NFNL_MSG_CTHELPER_GET:
+ return netlink_get_flags;
+ case NFNL_MSG_CTHELPER_DEL:
+ return netlink_delete_flags;
+ }
+ break;
+ case NFNL_SUBSYS_NFTABLES:
+ switch (msg_type) {
+ case NFT_MSG_NEWTABLE:
+ case NFT_MSG_NEWCHAIN:
+ case NFT_MSG_NEWRULE:
+ case NFT_MSG_NEWSET:
+ case NFT_MSG_NEWSETELEM:
+ case NFT_MSG_NEWGEN:
+ case NFT_MSG_NEWOBJ:
+ return netlink_new_flags;
+ case NFT_MSG_GETTABLE:
+ case NFT_MSG_GETCHAIN:
+ case NFT_MSG_GETRULE:
+ case NFT_MSG_GETSET:
+ case NFT_MSG_GETSETELEM:
+ case NFT_MSG_GETGEN:
+ case NFT_MSG_GETOBJ:
+ case NFT_MSG_GETOBJ_RESET:
+ return netlink_get_flags;
+ case NFT_MSG_DELTABLE:
+ case NFT_MSG_DELCHAIN:
+ case NFT_MSG_DELRULE:
+ case NFT_MSG_DELSET:
+ case NFT_MSG_DELSETELEM:
+ case NFT_MSG_DELOBJ:
+ return netlink_delete_flags;
+ }
+ break;
+ case NFNL_SUBSYS_NFT_COMPAT:
+ switch (msg_type) {
+ case NFNL_MSG_COMPAT_GET:
+ return netlink_get_flags;
+ }
+ break;
+ }
+
+ return NULL;
+}
+
+static const struct xlat *
decode_nlmsg_flags_route(const uint16_t type)
{
/* RTM_DELACTION use NLM_F_ROOT flags */
@@ -305,6 +408,7 @@ typedef const struct xlat *(*nlmsg_flags_decoder_t)(const
uint16_t type);
static const nlmsg_flags_decoder_t nlmsg_flags[] = {
[NETLINK_CRYPTO] = decode_nlmsg_flags_crypto,
+ [NETLINK_NETFILTER] = decode_nlmsg_flags_netfilter,
[NETLINK_ROUTE] = decode_nlmsg_flags_route,
[NETLINK_SOCK_DIAG] = decode_nlmsg_flags_sock_diag,
[NETLINK_XFRM] = decode_nlmsg_flags_xfrm
--
2.7.4
------------------------------------------------------------------------------
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