xdp-tutorial
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xdp-project
XDP tutorial
In packet02-rewriting, the following code will be executed to rewrite udp dest port: udphdr->dest = bpf_htons(bpf_ntohs(udphdr->dest) - 1); If this has been done, the udp checksum in the udp header...
I create some xdp socket in userspace and use xsk_map to redirect packet to differenet socket, but by using bpf_map_lookup_elem in kernel, I find that the mapping is not what...
Not sure if this is the right place to ask such a question, but I built an application based on the adv03 AF XDP tutorial so maybe someone can help...
Commit 0ded568, made by @donaldh and already merged, changed COPY_LOADER from `xdp_loader` to `xdp-loader`, but there are still dependencies on `xdp_loader`. I fixed the following: - Used `xdp-loader` instead of...
Regarding to packet03-redirecting, added `common_user_bpf_xdp.o` to `COMMON_OBJS`. In `packet03-redirecting/xdp_prog_user.c`, `common/common_user_bpf_xdp.h` is included, but `common_user_bpf_xdp.o` is not included in `COMMON_OBJS`. This omission causes the build to fail during assignment3, as `open_bpf_map_file()`...
When I try to compile the codes the xdp_vlan01_kern.c uses #pragma unroll, it throws error. ``` CC xdp_prog_user CLANG xdp_prog_kern_02.o LLC xdp_prog_kern_02.o CLANG xdp_prog_kern_03.o LLC xdp_prog_kern_03.o CLANG tc_reply_kern_02.o LLC tc_reply_kern_02.o...
how does af_xdp assign the cpu core for processing in? need to use so reuse port or something? or is there a possibility to divert it to the right cpu...
as titled. cant seem to figure out how to make this happen
I'm trying to capture the packet from veth and encapsulate a new eth header to send it out by a real eth nic. As far as I know, in xdp...
I have this on eBPF side. I want to manipulate and modify a packet at the Ethernet/IPv4/TCP layers and then send it to the kernel. This way, for example, I...
