1 This module sets the netfilter mark value associated with a connection.
3 \fB\-\-set\-xmark\fP \fIvalue\fP[\fB/\fP\fImask\fP]
4 Zero out the bits given by \fImask\fR and XOR \fIvalue\fR into the ctmark.
6 \fB\-\-save\-mark\fP [\fB\-\-nfmask\fP \fInfmask\fP] [\fB\-\-ctmask\fP \fIctmask\fP]
7 Copy the packet mark (nfmark) to the connection mark (ctmark) using the given
8 masks. The new nfmark value is determined as follows:
10 ctmark = (ctmark & ~ctmask) ^ (nfmark & nfmask)
12 i.e. \fIctmask\fR defines what bits to clear and \fInfmask\fR what bits of the
13 nfmark to XOR into the ctmark. \fIctmask\fR and \fInfmask\fR default to
16 \fB\-\-restore\-mark\fP [\fB\-\-nfmask\fP \fInfmask\fP] [\fB\-\-ctmask\fP \fIctmask\fP]
17 Copy the connection mark (ctmark) to the packet mark (nfmark) using the given
18 masks. The new ctmark value is determined as follows:
20 nfmark = (nfmark & ~\fInfmask\fR) ^ (ctmark & \fIctmask\fR);
22 i.e. \fInfmask\fR defines what bits to clear and \fIctmask\fR what bits of the
23 ctmark to XOR into the nfmark. \fIctmask\fR and \fInfmask\fR default to
26 \fB\-\-restore\-mark\fP is only valid in the \fBmangle\fP table.
28 The following mnemonics are available for \fB\-\-set\-xmark\fP:
30 \fB\-\-and\-mark\fP \fIbits\fP
31 Binary AND the ctmark with \fIbits\fR. (Mnemonic for \fB\-\-set\-xmark
32 0/\fR\fIinvbits\fR, where \fIinvbits\fR is the binary negation of \fIbits\fR.)
34 \fB\-\-or\-mark\fP \fIbits\fP
35 Binary OR the ctmark with \fIbits\fR. (Mnemonic for \fB\-\-set\-xmark\fP
36 \fIbits\fR\fB/\fR\fIbits\fR.)
38 \fB\-\-xor\-mark\fP \fIbits\fP
39 Binary XOR the ctmark with \fIbits\fR. (Mnemonic for \fB\-\-set\-xmark\fP
42 \fB\-\-set\-mark\fP \fIvalue\fP[\fB/\fP\fImask\fP]
43 Set the connection mark. If a mask is specified then only those bits set in the
46 \fB\-\-save\-mark\fP [\fB\-\-mask\fP \fImask\fP]
47 Copy the nfmark to the ctmark. If a mask is specified, only those bits are
50 \fB\-\-restore\-mark\fP [\fB\-\-mask\fP \fImask\fP]
51 Copy the ctmark to the nfmark. If a mask is specified, only those bits are
52 copied. This is only valid in the \fBmangle\fR table.