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73f5698e77
This change brings the suppressor attribute names into line; it also changes the data types to provide a more consistent interface. While -1 indicates that the suppressor is not enabled, values >= 0 for suppress_prefixlen or suppress_ifgroup reject routing decisions violating the constraint. This changes the previously presented behaviour of suppress_prefixlen, where a prefix length _less_ than the attribute value was rejected. After this change, a prefix length less than *or* equal to the value is considered a violation of the rule constraint. It also changes the default values for default and newly added rules (disabling any suppression for those). Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de> Signed-off-by: David S. Miller <davem@davemloft.net>
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
#ifndef __LINUX_FIB_RULES_H
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#define __LINUX_FIB_RULES_H
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#include <linux/types.h>
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#include <linux/rtnetlink.h>
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/* rule is permanent, and cannot be deleted */
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#define FIB_RULE_PERMANENT 0x00000001
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#define FIB_RULE_INVERT 0x00000002
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#define FIB_RULE_UNRESOLVED 0x00000004
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#define FIB_RULE_IIF_DETACHED 0x00000008
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#define FIB_RULE_DEV_DETACHED FIB_RULE_IIF_DETACHED
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#define FIB_RULE_OIF_DETACHED 0x00000010
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/* try to find source address in routing lookups */
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#define FIB_RULE_FIND_SADDR 0x00010000
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struct fib_rule_hdr {
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__u8 family;
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__u8 dst_len;
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__u8 src_len;
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__u8 tos;
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__u8 table;
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__u8 res1; /* reserved */
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__u8 res2; /* reserved */
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__u8 action;
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__u32 flags;
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};
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enum {
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FRA_UNSPEC,
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FRA_DST, /* destination address */
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FRA_SRC, /* source address */
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FRA_IIFNAME, /* interface name */
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#define FRA_IFNAME FRA_IIFNAME
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FRA_GOTO, /* target to jump to (FR_ACT_GOTO) */
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FRA_UNUSED2,
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FRA_PRIORITY, /* priority/preference */
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FRA_UNUSED3,
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FRA_UNUSED4,
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FRA_UNUSED5,
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FRA_FWMARK, /* mark */
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FRA_FLOW, /* flow/class id */
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FRA_UNUSED6,
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FRA_SUPPRESS_IFGROUP,
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FRA_SUPPRESS_PREFIXLEN,
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FRA_TABLE, /* Extended table id */
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FRA_FWMASK, /* mask for netfilter mark */
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FRA_OIFNAME,
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__FRA_MAX
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};
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#define FRA_MAX (__FRA_MAX - 1)
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enum {
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FR_ACT_UNSPEC,
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FR_ACT_TO_TBL, /* Pass to fixed table */
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FR_ACT_GOTO, /* Jump to another rule */
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FR_ACT_NOP, /* No operation */
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FR_ACT_RES3,
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FR_ACT_RES4,
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FR_ACT_BLACKHOLE, /* Drop without notification */
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FR_ACT_UNREACHABLE, /* Drop with ENETUNREACH */
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FR_ACT_PROHIBIT, /* Drop with EACCES */
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__FR_ACT_MAX,
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};
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#define FR_ACT_MAX (__FR_ACT_MAX - 1)
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#endif
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