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00008 #include "internal/internal.h"
00009
00010 int __parse_expect_message_type(const struct nlmsghdr *nlh)
00011 {
00012 u_int16_t type = NFNL_MSG_TYPE(nlh->nlmsg_type);
00013 u_int16_t flags = nlh->nlmsg_flags;
00014 int ret = NFCT_T_UNKNOWN;
00015
00016 if (type == IPCTNL_MSG_EXP_NEW) {
00017 if (flags & (NLM_F_CREATE|NLM_F_EXCL))
00018 ret = NFCT_T_NEW;
00019 else
00020 ret = NFCT_T_UPDATE;
00021 } else if (type == IPCTNL_MSG_EXP_DELETE)
00022 ret = NFCT_T_DESTROY;
00023
00024 return ret;
00025 }
00026
00027 void __parse_expect(const struct nlmsghdr *nlh,
00028 struct nfattr *cda[],
00029 struct nf_expect *exp)
00030 {
00031 struct nfgenmsg *nfhdr = NLMSG_DATA(nlh);
00032
00033
00034 exp->expected.tuple[__DIR_ORIG].l3protonum = nfhdr->nfgen_family;
00035 set_bit(ATTR_ORIG_L3PROTO, exp->expected.set);
00036
00037 exp->mask.tuple[__DIR_REPL].l3protonum = nfhdr->nfgen_family;
00038 set_bit(ATTR_ORIG_L3PROTO, exp->mask.set);
00039
00040 if (cda[CTA_EXPECT_TUPLE-1])
00041 __parse_tuple(cda[CTA_EXPECT_TUPLE-1],
00042 &exp->expected.tuple[__DIR_ORIG],
00043 __DIR_ORIG,
00044 exp->set);
00045
00046 if (cda[CTA_EXPECT_MASK-1])
00047 __parse_tuple(cda[CTA_EXPECT_MASK-1],
00048 &exp->mask.tuple[__DIR_ORIG],
00049 __DIR_ORIG,
00050 exp->set);
00051
00052 if (cda[CTA_EXPECT_TIMEOUT-1]) {
00053 exp->timeout =
00054 ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_TIMEOUT-1]));
00055 set_bit(ATTR_EXP_TIMEOUT, exp->set);
00056 }
00057
00058 if (cda[CTA_EXPECT_ZONE-1]) {
00059 exp->zone =
00060 ntohs(*(u_int16_t *)NFA_DATA(cda[CTA_EXPECT_ZONE-1]));
00061 set_bit(ATTR_EXP_ZONE, exp->set);
00062 }
00063 if (cda[CTA_EXPECT_FLAGS-1]) {
00064 exp->flags =
00065 ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_FLAGS-1]));
00066 set_bit(ATTR_EXP_FLAGS, exp->set);
00067 }
00068 }