From: Martin KaFai Lau <martin.lau@linux.dev>
To: "Bastien Curutchet (eBPF Foundation)" <bastien.curutchet@bootlin.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Andrii Nakryiko <andrii@kernel.org>,
Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>, Mykola Lysenko <mykolal@fb.com>,
Shuah Khan <shuah@kernel.org>,
Alexis Lothore <alexis.lothore@bootlin.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf-next v3 09/14] selftests/bpf: test_xdp_veth: Use unique names
Date: Tue, 28 Jan 2025 15:00:26 -0800 [thread overview]
Message-ID: <3a499ffe-0514-49bf-8022-06a9b713b920@linux.dev> (raw)
In-Reply-To: <20250128-redirect-multi-v3-9-c1ce69997c01@bootlin.com>
On 1/28/25 1:57 AM, Bastien Curutchet (eBPF Foundation) wrote:
> +#define NO_IP "NO_IP"
> #define PROG_NAME_MAX_LEN 128
> +#define NS_NAME_MAX_LEN 32
>
> struct veth_configuration {
> char local_veth[VETH_NAME_MAX_LEN]; /* Interface in main namespace */
> char remote_veth[VETH_NAME_MAX_LEN]; /* Peer interface in dedicated namespace*/
> - const char *namespace; /* Namespace for the remote veth */
> + char namespace[NS_NAME_MAX_LEN]; /* Namespace for the remote veth */
> int next_veth; /* Local interface to redirect traffic to */
> - char *remote_addr; /* IP address of the remote veth */
> + char remote_addr[IP_MAX_LEN]; /* IP address of the remote veth */
> };
>
> {
> - .local_veth = "veth2",
> + .local_veth = "veth2-",
> .remote_veth = "veth22",
> .next_veth = 2,
> - .remote_addr = NULL,
> - .namespace = "ns-veth22"
> + .remote_addr = NO_IP,
> + .namespace = "ns-veth22-"
> },
> -static int create_network(void)
> +static int create_network(struct veth_configuration *net_config)
> {
> - int i;
> + int i, err;
> +
> + memcpy(net_config, default_config, VETH_PAIRS_COUNT * sizeof(struct veth_configuration));
>
> /* First create and configure all interfaces */
> for (i = 0; i < VETH_PAIRS_COUNT; i++) {
> + err = append_tid(net_config[i].namespace, strlen(net_config[i].namespace));
> + if (!ASSERT_OK(err, "append TID to ns name"))
> + return -1;
> +
> + err = append_tid(net_config[i].local_veth, strlen(net_config[i].local_veth));
> + if (!ASSERT_OK(err, "append TID to local veth name"))
> + return -1;
> +
> SYS(fail, "ip netns add %s", net_config[i].namespace);
> SYS(fail, "ip link add %s type veth peer name %s netns %s",
> net_config[i].local_veth, net_config[i].remote_veth, net_config[i].namespace);
> SYS(fail, "ip link set dev %s up", net_config[i].local_veth);
> - if (net_config[i].remote_addr)
> + if (memcmp(net_config[i].remote_addr, NO_IP, 5))
nit. May be "if (net_config[i].remote_addr[0])" instead of defining a new
"NO_IP" and then memcmp.
> SYS(fail, "ip -n %s addr add %s/24 dev %s", net_config[i].namespace,
> net_config[i].remote_addr, net_config[i].remote_veth);
> SYS(fail, "ip -n %s link set dev %s up", net_config[i].namespace,
> @@ -155,7 +169,7 @@ static int create_network(void)
> return -1;
> }
next prev parent reply other threads:[~2025-01-28 23:00 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-28 9:57 [PATCH bpf-next v3 00/14] selftests/bpf: Migrate test_xdp_redirect_multi.sh to test_progs Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 01/14] selftests/bpf: helpers: Add append_tid() Bastien Curutchet (eBPF Foundation)
2025-01-28 22:49 ` Martin KaFai Lau
2025-01-29 6:57 ` Bastien Curutchet
2025-01-28 9:57 ` [PATCH bpf-next v3 02/14] selftests/bpf: test_xdp_veth: Remove unused defines Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 03/14] selftests/bpf: test_xdp_veth: Remove unecessarry check_ping() Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 04/14] selftests/bpf: test_xdp_veth: Use int to describe next veth Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 05/14] selftests/bpf: test_xdp_veth: Split network configuration Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 06/14] selftests/bpf: test_xdp_veth: Rename config[] Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 07/14] selftests/bpf: test_xdp_veth: Add prog_config[] table Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 08/14] selftests/bpf: test_xdp_veth: Add XDP flags to prog_configuration Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 09/14] selftests/bpf: test_xdp_veth: Use unique names Bastien Curutchet (eBPF Foundation)
2025-01-28 23:00 ` Martin KaFai Lau [this message]
2025-01-28 9:57 ` [PATCH bpf-next v3 10/14] selftests/bpf: test_xdp_veth: Add new test cases for XDP flags Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 11/14] selftests/bpf: Optionally select broadcasting flags Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 12/14] selftests/bpf: test_xdp_veth: Add XDP broadcast redirection tests Bastien Curutchet (eBPF Foundation)
2025-01-28 23:03 ` Martin KaFai Lau
2025-01-29 7:08 ` Bastien Curutchet
2025-01-28 9:57 ` [PATCH bpf-next v3 13/14] selftests/bpf: test_xdp_veth: Add XDP program on egress test Bastien Curutchet (eBPF Foundation)
2025-01-28 9:57 ` [PATCH bpf-next v3 14/14] selftests/bpf: Remove test_xdp_redirect_multi.sh Bastien Curutchet (eBPF Foundation)
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