From 089d5e1c6a4fcd6615b02866b760f2d7b4084a08 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Wed, 8 Sep 2010 13:04:35 +0200 Subject: examples: put examples files into specific directories put examples files into specific directories according to the Netlink bus they work with. And minor update in the readme file Signed-off-by: Pablo Neira Ayuso --- examples/genl-family-get.c | 241 --------------------------------------------- 1 file changed, 241 deletions(-) delete mode 100644 examples/genl-family-get.c (limited to 'examples/genl-family-get.c') diff --git a/examples/genl-family-get.c b/examples/genl-family-get.c deleted file mode 100644 index 326755e..0000000 --- a/examples/genl-family-get.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * (C) 2009-2010 by Pablo Neira Ayuso - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - */ -#include -#include -#include -#include - -#include -#include - -static int parse_mc_grps_cb(const struct nlattr *attr, void *data) -{ - const struct nlattr **tb = (const struct nlattr **)data; - int type = mnl_attr_get_type(attr); - - /* skip unsupported attribute in user-space */ - if (mnl_attr_type_valid(attr, CTRL_ATTR_MCAST_GRP_MAX) < 0) - return MNL_CB_OK; - - switch(type) { - case CTRL_ATTR_MCAST_GRP_ID: - if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - case CTRL_ATTR_MCAST_GRP_NAME: - if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - } - tb[type] = attr; - return MNL_CB_OK; -} - -static void parse_genl_mc_grps(struct nlattr *nested) -{ - struct nlattr *pos; - - mnl_attr_for_each_nested(pos, nested) { - struct nlattr *tb[CTRL_ATTR_MCAST_GRP_MAX+1] = {}; - - mnl_attr_parse_nested(pos, parse_mc_grps_cb, tb); - if (tb[CTRL_ATTR_MCAST_GRP_ID]) { - printf("id-0x%x ", - mnl_attr_get_u32(tb[CTRL_ATTR_MCAST_GRP_ID])); - } - if (tb[CTRL_ATTR_MCAST_GRP_NAME]) { - printf("name: %s ", - mnl_attr_get_str(tb[CTRL_ATTR_MCAST_GRP_NAME])); - } - printf("\n"); - } -} - -static int parse_family_ops_cb(const struct nlattr *attr, void *data) -{ - const struct nlattr **tb = (const struct nlattr **)data; - int type = mnl_attr_get_type(attr); - - if (mnl_attr_type_valid(attr, CTRL_ATTR_OP_MAX) < 0) - return MNL_CB_OK; - - switch(type) { - case CTRL_ATTR_OP_ID: - if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - case CTRL_ATTR_OP_MAX: - break; - default: - return MNL_CB_OK; - } - tb[type] = attr; - return MNL_CB_OK; -} - -static void parse_genl_family_ops(struct nlattr *nested) -{ - struct nlattr *pos; - - mnl_attr_for_each_nested(pos, nested) { - struct nlattr *tb[CTRL_ATTR_OP_MAX+1] = {}; - - mnl_attr_parse_nested(pos, parse_family_ops_cb, tb); - if (tb[CTRL_ATTR_OP_ID]) { - printf("id-0x%x ", - mnl_attr_get_u32(tb[CTRL_ATTR_OP_ID])); - } - if (tb[CTRL_ATTR_OP_MAX]) { - printf("flags "); - } - printf("\n"); - } -} - -static int data_attr_cb(const struct nlattr *attr, void *data) -{ - const struct nlattr **tb = (const struct nlattr **)data; - int type = mnl_attr_get_type(attr); - - if (mnl_attr_type_valid(attr, CTRL_ATTR_MAX) < 0) - return MNL_CB_OK; - - switch(type) { - case CTRL_ATTR_FAMILY_NAME: - if (mnl_attr_validate(attr, MNL_TYPE_STRING) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - case CTRL_ATTR_FAMILY_ID: - if (mnl_attr_validate(attr, MNL_TYPE_U16) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - case CTRL_ATTR_VERSION: - case CTRL_ATTR_HDRSIZE: - case CTRL_ATTR_MAXATTR: - if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - case CTRL_ATTR_OPS: - case CTRL_ATTR_MCAST_GROUPS: - if (mnl_attr_validate(attr, MNL_TYPE_NESTED) < 0) { - perror("mnl_attr_validate"); - return MNL_CB_ERROR; - } - break; - } - tb[type] = attr; - return MNL_CB_OK; -} - -static int data_cb(const struct nlmsghdr *nlh, void *data) -{ - struct nlattr *tb[CTRL_ATTR_MAX+1] = {}; - struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); - - mnl_attr_parse(nlh, sizeof(*genl), data_attr_cb, tb); - if (tb[CTRL_ATTR_FAMILY_NAME]) { - printf("name=%s\t", - mnl_attr_get_str(tb[CTRL_ATTR_FAMILY_NAME])); - } - if (tb[CTRL_ATTR_FAMILY_ID]) { - printf("id=%u\t", - mnl_attr_get_u16(tb[CTRL_ATTR_FAMILY_ID])); - } - if (tb[CTRL_ATTR_VERSION]) { - printf("version=%u\t", - mnl_attr_get_u32(tb[CTRL_ATTR_VERSION])); - } - if (tb[CTRL_ATTR_HDRSIZE]) { - printf("hdrsize=%u\t", - mnl_attr_get_u32(tb[CTRL_ATTR_HDRSIZE])); - } - if (tb[CTRL_ATTR_MAXATTR]) { - printf("maxattr=%u\t", - mnl_attr_get_u32(tb[CTRL_ATTR_MAXATTR])); - } - if (tb[CTRL_ATTR_OPS]) { - printf("\nops:\n"); - parse_genl_family_ops(tb[CTRL_ATTR_OPS]); - } - if (tb[CTRL_ATTR_MCAST_GROUPS]) { - printf("\ngrps:\n"); - parse_genl_mc_grps(tb[CTRL_ATTR_MCAST_GROUPS]); - } - return MNL_CB_OK; -} - -int main(int argc, char *argv[]) -{ - struct mnl_socket *nl; - char buf[getpagesize()]; - struct nlmsghdr *nlh; - struct genlmsghdr *genl; - int ret; - unsigned int seq, portid; - - if (argc != 2) { - printf("%s [family name]\n", argv[0]); - exit(EXIT_FAILURE); - } - - nlh = mnl_nlmsg_put_header(buf); - nlh->nlmsg_type = GENL_ID_CTRL; - nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK; - nlh->nlmsg_seq = seq = time(NULL); - - genl = mnl_nlmsg_put_extra_header(nlh, sizeof(struct genlmsghdr)); - genl->cmd = CTRL_CMD_GETFAMILY; - genl->version = 1; - - mnl_attr_put_u32(nlh, CTRL_ATTR_FAMILY_ID, GENL_ID_CTRL); - mnl_attr_put_str_null(nlh, CTRL_ATTR_FAMILY_NAME, argv[1]); - - nl = mnl_socket_open(NETLINK_GENERIC); - if (nl == NULL) { - perror("mnl_socket_open"); - exit(EXIT_FAILURE); - } - - if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) { - perror("mnl_socket_bind"); - exit(EXIT_FAILURE); - } - portid = mnl_socket_get_portid(nl); - - if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) { - perror("mnl_socket_send"); - exit(EXIT_FAILURE); - } - - ret = mnl_socket_recvfrom(nl, buf, sizeof(buf)); - while (ret > 0) { - ret = mnl_cb_run(buf, ret, seq, portid, data_cb, NULL); - if (ret <= 0) - break; - ret = mnl_socket_recvfrom(nl, buf, sizeof(buf)); - } - if (ret == -1) { - perror("error"); - exit(EXIT_FAILURE); - } - - mnl_socket_close(nl); - - return 0; -} -- cgit v1.2.3