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author | Thomas Gschwantner <tharre3@gmail.com> | 2019-09-25 19:10:20 +0200 |
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committer | Thomas Gschwantner <tharre3@gmail.com> | 2019-09-28 15:21:12 +0200 |
commit | 4c8b602b1d2a305d7fbb1c3a8b065bae072c5186 (patch) | |
tree | c4baee925a6d9c83d4b615dfa3050bb0ea5424a9 /common.c | |
parent | Serialize/deserialize messages into a struct (diff) | |
download | wg-dynamic-4c8b602b1d2a305d7fbb1c3a8b065bae072c5186.tar.xz wg-dynamic-4c8b602b1d2a305d7fbb1c3a8b065bae072c5186.zip |
Extract all RTNETLINK code into ipm.{c,h}
Diffstat (limited to 'common.c')
-rw-r--r-- | common.c | 67 |
1 files changed, 0 insertions, 67 deletions
@@ -384,70 +384,3 @@ bool is_link_local(unsigned char *addr) /* TODO: check if the remaining 54 bits are 0 */ return IN6_IS_ADDR_LINKLOCAL(addr); } - -void iface_get_all_addrs(uint8_t family, mnl_cb_t data_cb, void *cb_data) -{ - struct mnl_socket *nl; - char buf[MNL_SOCKET_BUFFER_SIZE]; - struct nlmsghdr *nlh; - /* TODO: rtln-addr-dump from libmnl uses rtgenmsg here? */ - struct ifaddrmsg *ifaddr; - int ret; - unsigned int seq, portid; - - nl = mnl_socket_open(NETLINK_ROUTE); - if (nl == NULL) - fatal("mnl_socket_open"); - - if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) - fatal("mnl_socket_bind"); - - /* You'd think that we could just request addresses from a specific - * interface, via NLM_F_MATCH or something, but we can't. See also: - * https://marc.info/?l=linux-netdev&m=132508164508217 - */ - seq = time(NULL); - portid = mnl_socket_get_portid(nl); - nlh = mnl_nlmsg_put_header(buf); - nlh->nlmsg_type = RTM_GETADDR; - nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP; - nlh->nlmsg_seq = seq; - ifaddr = mnl_nlmsg_put_extra_header(nlh, sizeof(struct ifaddrmsg)); - ifaddr->ifa_family = family; - - if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) - fatal("mnl_socket_sendto"); - - do { - ret = mnl_socket_recvfrom(nl, buf, sizeof(buf)); - if (ret <= MNL_CB_STOP) - break; - ret = mnl_cb_run(buf, ret, seq, portid, data_cb, cb_data); - } while (ret > 0); - - if (ret == -1) - fatal("mnl_cb_run/mnl_socket_recvfrom"); - - mnl_socket_close(nl); -} - -int data_attr_cb(const struct nlattr *attr, void *data) -{ - const struct nlattr **tb = data; - int type = mnl_attr_get_type(attr); - - /* skip unsupported attribute in user-space */ - if (mnl_attr_type_valid(attr, IFA_MAX) < 0) - return MNL_CB_OK; - - switch (type) { - case IFA_ADDRESS: - if (mnl_attr_validate(attr, MNL_TYPE_BINARY) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - } - tb[type] = attr; - return MNL_CB_OK; -} |