diff options
| author | vivek <vivek@cumulusnetworks.com> | 2018-02-04 12:33:33 +0000 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2018-03-09 11:07:41 -0500 |
| commit | 942bf97b13223ac5645f613a2f00ab18f3716c59 (patch) | |
| tree | 426b4568396dcbf0ccbbee0792602c855cf045db /include | |
| parent | dba32923eb4198bb17e2cdbcd9e88c7decde81c4 (diff) | |
*: PBR - netlink interaction and basic definitions
Implement netlink interactions for Policy Based Routing. This includes
APIs to install and uninstall rules and handle notifications from the
kernel related to rule addition or deletion. Various definitions are
added to facilitate this.
Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com>
Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fib_rules.h | 74 | ||||
| -rw-r--r-- | include/subdir.am | 1 |
2 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/fib_rules.h b/include/linux/fib_rules.h new file mode 100644 index 0000000000..bc6688012c --- /dev/null +++ b/include/linux/fib_rules.h @@ -0,0 +1,74 @@ +#ifndef __LINUX_FIB_RULES_H +#define __LINUX_FIB_RULES_H + +#include <linux/types.h> +#include <linux/rtnetlink.h> + +/* rule is permanent, and cannot be deleted */ +#define FIB_RULE_PERMANENT 0x00000001 +#define FIB_RULE_INVERT 0x00000002 +#define FIB_RULE_UNRESOLVED 0x00000004 +#define FIB_RULE_IIF_DETACHED 0x00000008 +#define FIB_RULE_DEV_DETACHED FIB_RULE_IIF_DETACHED +#define FIB_RULE_OIF_DETACHED 0x00000010 + +/* try to find source address in routing lookups */ +#define FIB_RULE_FIND_SADDR 0x00010000 + +struct fib_rule_hdr { + __u8 family; + __u8 dst_len; + __u8 src_len; + __u8 tos; + + __u8 table; + __u8 res1; /* reserved */ + __u8 res2; /* reserved */ + __u8 action; + + __u32 flags; +}; + +enum { + FRA_UNSPEC, + FRA_DST, /* destination address */ + FRA_SRC, /* source address */ + FRA_IIFNAME, /* interface name */ +#define FRA_IFNAME FRA_IIFNAME + FRA_GOTO, /* target to jump to (FR_ACT_GOTO) */ + FRA_UNUSED2, + FRA_PRIORITY, /* priority/preference */ + FRA_UNUSED3, + FRA_UNUSED4, + FRA_UNUSED5, + FRA_FWMARK, /* mark */ + FRA_FLOW, /* flow/class id */ + FRA_UNUSED6, + FRA_SUPPRESS_IFGROUP, + FRA_SUPPRESS_PREFIXLEN, + FRA_TABLE, /* Extended table id */ + FRA_FWMASK, /* mask for netfilter mark */ + FRA_OIFNAME, + FRA_PAD, + FRA_L3MDEV, /* iif or oif is l3mdev goto its table */ + __FRA_MAX +}; + +#define FRA_MAX (__FRA_MAX - 1) + +enum { + FR_ACT_UNSPEC, + FR_ACT_TO_TBL, /* Pass to fixed table */ + FR_ACT_GOTO, /* Jump to another rule */ + FR_ACT_NOP, /* No operation */ + FR_ACT_RES3, + FR_ACT_RES4, + FR_ACT_BLACKHOLE, /* Drop without notification */ + FR_ACT_UNREACHABLE, /* Drop with ENETUNREACH */ + FR_ACT_PROHIBIT, /* Drop with EACCES */ + __FR_ACT_MAX, +}; + +#define FR_ACT_MAX (__FR_ACT_MAX - 1) + +#endif diff --git a/include/subdir.am b/include/subdir.am index 7a12b2ffae..db5ed06c61 100644 --- a/include/subdir.am +++ b/include/subdir.am @@ -7,4 +7,5 @@ noinst_HEADERS += \ include/linux/rtnetlink.h \ include/linux/socket.h \ include/linux/net_namespace.h \ + include/linux/fib_rules.h \ # end |