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{
    "id": 806000,
    "url": "http://patchwork.ozlabs.org/api/patches/806000/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1503687941-626-7-git-send-email-dsahern@gmail.com/",
    "project": {
        "id": 7,
        "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api",
        "name": "Linux network development",
        "link_name": "netdev",
        "list_id": "netdev.vger.kernel.org",
        "list_email": "netdev@vger.kernel.org",
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    "msgid": "<1503687941-626-7-git-send-email-dsahern@gmail.com>",
    "list_archive_url": null,
    "date": "2017-08-25T19:05:39",
    "name": "[v2,net-next,6/8] samples/bpf: Add option to dump socket settings",
    "commit_ref": null,
    "pull_url": null,
    "state": "deferred",
    "archived": true,
    "hash": "33c0380cd3d2897772ff700b00ad0fedb6d88890",
    "submitter": {
        "id": 6918,
        "url": "http://patchwork.ozlabs.org/api/people/6918/?format=api",
        "name": "David Ahern",
        "email": "dsahern@gmail.com"
    },
    "delegate": {
        "id": 34,
        "url": "http://patchwork.ozlabs.org/api/users/34/?format=api",
        "username": "davem",
        "first_name": "David",
        "last_name": "Miller",
        "email": "davem@davemloft.net"
    },
    "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/1503687941-626-7-git-send-email-dsahern@gmail.com/mbox/",
    "series": [],
    "comments": "http://patchwork.ozlabs.org/api/patches/806000/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/806000/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "X-Received": "by 10.84.230.137 with SMTP id e9mr11468858plk.71.1503687956271; \n\tFri, 25 Aug 2017 12:05:56 -0700 (PDT)",
        "From": "David Ahern <dsahern@gmail.com>",
        "To": "netdev@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org,\n\ttj@kernel.org, davem@davemloft.net",
        "Cc": "David Ahern <dsahern@gmail.com>",
        "Subject": "[PATCH v2 net-next 6/8] samples/bpf: Add option to dump socket\n\tsettings",
        "Date": "Fri, 25 Aug 2017 12:05:39 -0700",
        "Message-Id": "<1503687941-626-7-git-send-email-dsahern@gmail.com>",
        "X-Mailer": "git-send-email 2.1.4",
        "In-Reply-To": "<1503687941-626-1-git-send-email-dsahern@gmail.com>",
        "References": "<1503687941-626-1-git-send-email-dsahern@gmail.com>",
        "Sender": "netdev-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<netdev.vger.kernel.org>",
        "X-Mailing-List": "netdev@vger.kernel.org"
    },
    "content": "Add option to dump socket settings. Will be used in the next patch\nto verify bpf programs are correctly setting mark, priority and\ndevice based on the cgroup attachment for the program run.\n\nSigned-off-by: David Ahern <dsahern@gmail.com>\n---\n samples/bpf/test_cgrp2_sock.c | 75 +++++++++++++++++++++++++++++++++++++++++--\n 1 file changed, 73 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/samples/bpf/test_cgrp2_sock.c b/samples/bpf/test_cgrp2_sock.c\nindex a1ef7b8bd3f9..eabf530a5223 100644\n--- a/samples/bpf/test_cgrp2_sock.c\n+++ b/samples/bpf/test_cgrp2_sock.c\n@@ -112,6 +112,70 @@ static int prog_load(__u32 idx, __u32 mark, __u32 prio)\n \treturn ret;\n }\n \n+static int get_bind_to_device(int sd, char *name, size_t len)\n+{\n+\tsocklen_t optlen = len;\n+\tint rc;\n+\n+\tname[0] = '\\0';\n+\trc = getsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, &optlen);\n+\tif (rc < 0)\n+\t\tperror(\"setsockopt(SO_BINDTODEVICE)\");\n+\n+\treturn rc;\n+}\n+\n+static unsigned int get_somark(int sd)\n+{\n+\tunsigned int mark = 0;\n+\tsocklen_t optlen = sizeof(mark);\n+\tint rc;\n+\n+\trc = getsockopt(sd, SOL_SOCKET, SO_MARK, &mark, &optlen);\n+\tif (rc < 0)\n+\t\tperror(\"getsockopt(SO_MARK)\");\n+\n+\treturn mark;\n+}\n+\n+static unsigned int get_priority(int sd)\n+{\n+\tunsigned int prio = 0;\n+\tsocklen_t optlen = sizeof(prio);\n+\tint rc;\n+\n+\trc = getsockopt(sd, SOL_SOCKET, SO_PRIORITY, &prio, &optlen);\n+\tif (rc < 0)\n+\t\tperror(\"getsockopt(SO_PRIORITY)\");\n+\n+\treturn prio;\n+}\n+\n+static int show_sockopts(int family)\n+{\n+\tunsigned int mark, prio;\n+\tchar name[16];\n+\tint sd;\n+\n+\tsd = socket(family, SOCK_DGRAM, 17);\n+\tif (sd < 0) {\n+\t\tperror(\"socket\");\n+\t\treturn 1;\n+\t}\n+\n+\tif (get_bind_to_device(sd, name, sizeof(name)) < 0)\n+\t\treturn 1;\n+\n+\tmark = get_somark(sd);\n+\tprio = get_priority(sd);\n+\n+\tclose(sd);\n+\n+\tprintf(\"sd %d: dev %s, mark %u, priority %u\\n\", sd, name, mark, prio);\n+\n+\treturn 0;\n+}\n+\n static int usage(const char *argv0)\n {\n \tprintf(\"Usage:\\n\");\n@@ -120,6 +184,9 @@ static int usage(const char *argv0)\n \tprintf(\"\\n\");\n \tprintf(\"  Detach a program\\n\");\n \tprintf(\"  %s -d cg-path\\n\", argv0);\n+\tprintf(\"\\n\");\n+\tprintf(\"  Show inherited socket settings (mark, priority, and device)\\n\");\n+\tprintf(\"  %s [-6]\\n\", argv0);\n \treturn EXIT_FAILURE;\n }\n \n@@ -129,10 +196,11 @@ int main(int argc, char **argv)\n \t__u32 idx = 0, mark = 0, prio = 0;\n \tconst char *cgrp_path = NULL;\n \tint cg_fd, prog_fd, ret;\n+\tint family = PF_INET;\n \tint do_attach = 1;\n \tint rc;\n \n-\twhile ((rc = getopt(argc, argv, \"db:m:p:r\")) != -1) {\n+\twhile ((rc = getopt(argc, argv, \"db:m:p:r6\")) != -1) {\n \t\tswitch (rc) {\n \t\tcase 'd':\n \t\t\tdo_attach = 0;\n@@ -156,13 +224,16 @@ int main(int argc, char **argv)\n \t\tcase 'r':\n \t\t\tattach_flags |= BPF_F_RECURSIVE;\n \t\t\tbreak;\n+\t\tcase '6':\n+\t\t\tfamily = PF_INET6;\n+\t\t\tbreak;\n \t\tdefault:\n \t\t\treturn usage(argv[0]);\n \t\t}\n \t}\n \n \tif (optind == argc)\n-\t\treturn usage(argv[0]);\n+\t\treturn show_sockopts(family);\n \n \tcgrp_path = argv[optind];\n \tif (!cgrp_path) {\n",
    "prefixes": [
        "v2",
        "net-next",
        "6/8"
    ]
}