文件列表:

Makefile (1173, 2021-01-12)
bpf (0, 2021-01-12)
bpf\lb_consts.h (338, 2021-01-12)
bpf\lb_kern.c (6815, 2021-01-12)
bpf\lb_maps.h (313, 2021-01-12)
bpf\lb_structs.h (299, 2021-01-12)
bpf\linux_header (0, 2021-01-12)
bpf\linux_header\bpf.h (163002, 2021-01-12)
bpf\linux_header\bpf_endian.h (2726, 2021-01-12)
bpf\linux_header\bpf_helpers.h (21696, 2021-01-12)
bpf\murmur_hash.h (1622, 2021-01-12)
libbpf (0, 2021-01-12)
user (0, 2021-01-12)
user\xlb.c (4236, 2021-01-12)

# XLB - XDP Load Balancer A Linux XDP based load balancer, which currently supports only IPv4 traffic. ## Prerequisite - Add VIP to the loopback device E.g.: ``` $ ip addr add 10.10.0.5/8 dev lo ``` where `10.10.0.5` is the VIP. - Configure ARP settings Possible configuration would be: ``` $ sysctl net.ipv4.conf.all.arp_ignore=1 $ sysctl net.ipv4.conf.eth0.arp_ignore=1 $ sysctl net.ipv4.conf.all.arp_announce=2 $ sysctl net.ipv4.conf.eth0.arp_announce=2 ``` With these adjustments, the LB can do DSR (Direct Server Return) properly with VIP as source address of the response. ## Build Since we use [libbpf](https://github.com/libbpf/libbpf) as our eBPF library, we need pull it first: ``` $ git submodule update --init ``` Then simply run `make` to build both control plane and data plane sources. ## TODOs - LRU for faster routing decision - IPv6 support - Better routing decision algorithm (we're using modulo devision currently)

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