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authorKevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>2019-06-05 18:31:04 +0100
committerKevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>2019-07-25 10:18:23 +0100
commit1aad1d17ed8bee2a22d235980a6c80b6dc1b74e0 (patch)
treedf4c37b90dbe076d7b80d331c86bc73757e69f1e /package/network/utils/iptables/patches/010-add-savedscp-support.patch
parent12610a5620522c38178208e5559e89e17cbae2ec (diff)
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iptables: add connmark savedscp support
iptables: connmark - add savedscp option Naive user space front end to xt_connmark 'savedscp' option. e.g. iptables -A QOS_MARK_eth0 -t mangle -j CONNMARK --savedscp-mark 0xfc000000/0x01000000 Will save DSCP into the top 6 bits and OR 0x01 (ie set) the least significant bit of most significant byte. Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Diffstat (limited to 'package/network/utils/iptables/patches/010-add-savedscp-support.patch')
-rw-r--r--package/network/utils/iptables/patches/010-add-savedscp-support.patch206
1 files changed, 206 insertions, 0 deletions
diff --git a/package/network/utils/iptables/patches/010-add-savedscp-support.patch b/package/network/utils/iptables/patches/010-add-savedscp-support.patch
new file mode 100644
index 0000000000..cc1efcee01
--- /dev/null
+++ b/package/network/utils/iptables/patches/010-add-savedscp-support.patch
@@ -0,0 +1,206 @@
+From 69b427fb5e1211c1110ce63be62b70504d04b0ff Mon Sep 17 00:00:00 2001
+From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
+Date: Sat, 23 Mar 2019 10:21:03 +0000
+Subject: [PATCH] savedscp
+
+Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
+---
+ extensions/libxt_CONNMARK.c | 68 ++++++++++++++++++++++++++-
+ include/linux/netfilter/xt_connmark.h | 3 +-
+ 2 files changed, 69 insertions(+), 2 deletions(-)
+
+--- a/extensions/libxt_CONNMARK.c
++++ b/extensions/libxt_CONNMARK.c
+@@ -49,6 +49,7 @@ enum {
+ O_CTMASK,
+ O_NFMASK,
+ O_MASK,
++ O_SAVEDSCP_MARK,
+ F_SET_MARK = 1 << O_SET_MARK,
+ F_SAVE_MARK = 1 << O_SAVE_MARK,
+ F_RESTORE_MARK = 1 << O_RESTORE_MARK,
+@@ -61,8 +62,10 @@ enum {
+ F_CTMASK = 1 << O_CTMASK,
+ F_NFMASK = 1 << O_NFMASK,
+ F_MASK = 1 << O_MASK,
++ F_SAVEDSCP_MARK = 1 << O_SAVEDSCP_MARK,
+ F_OP_ANY = F_SET_MARK | F_SAVE_MARK | F_RESTORE_MARK |
+- F_AND_MARK | F_OR_MARK | F_XOR_MARK | F_SET_XMARK,
++ F_AND_MARK | F_OR_MARK | F_XOR_MARK | F_SET_XMARK |
++ F_SAVEDSCP_MARK,
+ };
+
+ static const char *const xt_connmark_shift_ops[] = {
+@@ -75,6 +78,7 @@ static void CONNMARK_help(void)
+ printf(
+ "CONNMARK target options:\n"
+ " --set-mark value[/mask] Set conntrack mark value\n"
++" --savedscp-mark dscpmask/statemask Save DSCP to conntrack mark value\n"
+ " --save-mark [--mask mask] Save the packet nfmark in the connection\n"
+ " --restore-mark [--mask mask] Restore saved nfmark value\n");
+ }
+@@ -83,6 +87,8 @@ static void CONNMARK_help(void)
+ static const struct xt_option_entry CONNMARK_opts[] = {
+ {.name = "set-mark", .id = O_SET_MARK, .type = XTTYPE_MARKMASK32,
+ .excl = F_OP_ANY},
++ {.name = "savedscp-mark", .id = O_SAVEDSCP_MARK, .type = XTTYPE_MARKMASK32,
++ .excl = F_OP_ANY},
+ {.name = "save-mark", .id = O_SAVE_MARK, .type = XTTYPE_NONE,
+ .excl = F_OP_ANY},
+ {.name = "restore-mark", .id = O_RESTORE_MARK, .type = XTTYPE_NONE,
+@@ -98,6 +104,8 @@ static const struct xt_option_entry conn
+ .excl = F_OP_ANY},
+ {.name = "set-mark", .id = O_SET_MARK, .type = XTTYPE_MARKMASK32,
+ .excl = F_OP_ANY},
++ {.name = "savedscp-mark", .id = O_SAVEDSCP_MARK, .type = XTTYPE_MARKMASK32,
++ .excl = F_OP_ANY},
+ {.name = "and-mark", .id = O_AND_MARK, .type = XTTYPE_UINT32,
+ .excl = F_OP_ANY},
+ {.name = "or-mark", .id = O_OR_MARK, .type = XTTYPE_UINT32,
+@@ -124,6 +132,8 @@ static const struct xt_option_entry conn
+ .excl = F_OP_ANY},
+ {.name = "set-mark", .id = O_SET_MARK, .type = XTTYPE_MARKMASK32,
+ .excl = F_OP_ANY},
++ {.name = "savedscp-mark", .id = O_SAVEDSCP_MARK, .type = XTTYPE_MARKMASK32,
++ .excl = F_OP_ANY},
+ {.name = "and-mark", .id = O_AND_MARK, .type = XTTYPE_UINT32,
+ .excl = F_OP_ANY},
+ {.name = "or-mark", .id = O_OR_MARK, .type = XTTYPE_UINT32,
+@@ -158,6 +168,7 @@ static void connmark_tg_help(void)
+ " --restore-mark [--ctmask mask] [--nfmask mask]\n"
+ " Copy nfmark to ctmark using masks\n"
+ " --set-mark value[/mask] Set conntrack mark value\n"
++" --savedscp-mark value/mask Save DSCP to conntrack mark value\n"
+ " --save-mark [--mask mask] Save the packet nfmark in the connection\n"
+ " --restore-mark [--mask mask] Restore saved nfmark value\n"
+ " --and-mark value Binary AND the ctmark with bits\n"
+@@ -210,6 +221,11 @@ static void CONNMARK_parse(struct xt_opt
+ markinfo->mark = cb->val.mark;
+ markinfo->mask = cb->val.mask;
+ break;
++ case O_SAVEDSCP_MARK:
++ markinfo->mode = XT_CONNMARK_SAVEDSCP;
++ markinfo->mark = cb->val.mark;
++ markinfo->mask = cb->val.mask;
++ break;
+ case O_SAVE_MARK:
+ markinfo->mode = XT_CONNMARK_SAVE;
+ break;
+@@ -238,6 +254,19 @@ static void connmark_tg_parse(struct xt_
+ info->ctmark = cb->val.mark;
+ info->ctmask = cb->val.mark | cb->val.mask;
+ break;
++ case O_SAVEDSCP_MARK:
++ info->mode = XT_CONNMARK_SAVEDSCP;
++ info->ctmark = cb->val.mark;
++ info->ctmask = cb->val.mask;
++ info->nfmask = info->ctmark ? ffs(info->ctmark) - 1 : 0;
++ /* need 6 contiguous bits */
++ if ((0x3f & (info->ctmark >> info->nfmask)) != 0x3f)
++ xtables_error(PARAMETER_PROBLEM,
++ "CONNMARK savedscp: insufficient contiguous dscpmask bits");
++ if (info->ctmark & info->ctmask)
++ xtables_error(PARAMETER_PROBLEM,
++ "CONNMARK savedscp: dscpmask/statemask bits overlap");
++ break;
+ case O_AND_MARK:
+ info->mode = XT_CONNMARK_SET;
+ info->ctmark = 0;
+@@ -283,6 +312,19 @@ static void connmark_tg_parse_v2(struct
+ info->ctmark = cb->val.mark;
+ info->ctmask = cb->val.mark | cb->val.mask;
+ break;
++ case O_SAVEDSCP_MARK:
++ info->mode = XT_CONNMARK_SAVEDSCP;
++ info->ctmark = cb->val.mark;
++ info->ctmask = cb->val.mask;
++ info->shift_bits = info->ctmark ? ffs(info->ctmark) - 1 : 0;
++ /* need 6 contiguous bits */
++ if ((0x3f & (info->ctmark >> info->shift_bits)) != 0x3f)
++ xtables_error(PARAMETER_PROBLEM,
++ "CONNMARK savedscp: insufficient contiguous dscpmask bits");
++ if (info->ctmark & info->ctmask)
++ xtables_error(PARAMETER_PROBLEM,
++ "CONNMARK savedscp: dscpmask/statemask bits overlap");
++ break;
+ case O_AND_MARK:
+ info->mode = XT_CONNMARK_SET;
+ info->ctmark = 0;
+@@ -351,6 +393,11 @@ static void CONNMARK_print(const void *i
+ print_mark(markinfo->mark);
+ print_mask("/", markinfo->mask);
+ break;
++ case XT_CONNMARK_SAVEDSCP:
++ printf(" CONNMARK savedscp ");
++ print_mark(markinfo->mark);
++ print_mask("/", markinfo->mask);
++ break;
+ case XT_CONNMARK_SAVE:
+ printf(" CONNMARK save ");
+ print_mask("mask ", markinfo->mask);
+@@ -386,6 +433,10 @@ connmark_tg_print(const void *ip, const
+ printf(" CONNMARK xset 0x%x/0x%x",
+ info->ctmark, info->ctmask);
+ break;
++ case XT_CONNMARK_SAVEDSCP:
++ printf(" CONNMARK DSCP set 0x%x/0x%x",
++ info->ctmark, info->ctmask);
++ break;
+ case XT_CONNMARK_SAVE:
+ if (info->nfmask == UINT32_MAX && info->ctmask == UINT32_MAX)
+ printf(" CONNMARK save");
+@@ -433,6 +484,10 @@ connmark_tg_print_v2(const void *ip, con
+ printf(" CONNMARK xset 0x%x/0x%x",
+ info->ctmark, info->ctmask);
+ break;
++ case XT_CONNMARK_SAVEDSCP:
++ printf(" CONNMARK DSCP xset 0x%x/0x%x",
++ info->ctmark, info->ctmask);
++ break;
+ case XT_CONNMARK_SAVE:
+ if (info->nfmask == UINT32_MAX && info->ctmask == UINT32_MAX)
+ printf(" CONNMARK save");
+@@ -474,6 +529,11 @@ static void CONNMARK_save(const void *ip
+ print_mark(markinfo->mark);
+ print_mask("/", markinfo->mask);
+ break;
++ case XT_CONNMARK_SAVEDSCP:
++ printf(" --savedscp-mark ");
++ print_mark(markinfo->mark);
++ print_mask("/", markinfo->mask);
++ break;
+ case XT_CONNMARK_SAVE:
+ printf(" --save-mark ");
+ print_mask("--mask ", markinfo->mask);
+@@ -505,6 +565,9 @@ connmark_tg_save(const void *ip, const s
+ case XT_CONNMARK_SET:
+ printf(" --set-xmark 0x%x/0x%x", info->ctmark, info->ctmask);
+ break;
++ case XT_CONNMARK_SAVEDSCP:
++ printf(" --savedscp-mark 0x%x/0x%x", info->ctmark, info->ctmask);
++ break;
+ case XT_CONNMARK_SAVE:
+ printf(" --save-mark --nfmask 0x%x --ctmask 0x%x",
+ info->nfmask, info->ctmask);
+@@ -529,6 +592,9 @@ connmark_tg_save_v2(const void *ip, cons
+ case XT_CONNMARK_SET:
+ printf(" --set-xmark 0x%x/0x%x", info->ctmark, info->ctmask);
+ break;
++ case XT_CONNMARK_SAVEDSCP:
++ printf(" --savedscp-mark 0x%x/0x%x", info->ctmark, info->ctmask);
++ break;
+ case XT_CONNMARK_SAVE:
+ printf(" --save-mark --nfmask 0x%x --ctmask 0x%x",
+ info->nfmask, info->ctmask);
+--- a/include/linux/netfilter/xt_connmark.h
++++ b/include/linux/netfilter/xt_connmark.h
+@@ -15,7 +15,8 @@
+ enum {
+ XT_CONNMARK_SET = 0,
+ XT_CONNMARK_SAVE,
+- XT_CONNMARK_RESTORE
++ XT_CONNMARK_RESTORE,
++ XT_CONNMARK_SAVEDSCP
+ };
+
+ struct xt_connmark_tginfo1 {