本文整理汇总了C++中NEXT_ARG函数的典型用法代码示例。如果您正苦于以下问题：C++ NEXT_ARG函数的具体用法？C++ NEXT_ARG怎么用？C++ NEXT_ARG使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了NEXT_ARG函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: parse_args
static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
{
int count = 0;
char medium[IFNAMSIZ];
memset(p, 0, sizeof(*p));
memset(&medium, 0, sizeof(medium));
p->iph.version = 4;
p->iph.ihl = 5;
#ifndef IP_DF
#define IP_DF 0x4000 /* Flag: "Don't Fragment" */
#endif
p->iph.frag_off = htons(IP_DF);
while (argc > 0) {
if (strcmp(*argv, "mode") == 0) {
NEXT_ARG();
if (strcmp(*argv, "ipip") == 0 ||
strcmp(*argv, "ip/ip") == 0) {
if (p->iph.protocol && p->iph.protocol != IPPROTO_IPIP) {
fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
exit(-1);
}
p->iph.protocol = IPPROTO_IPIP;
} else if (strcmp(*argv, "gre") == 0 ||
strcmp(*argv, "gre/ip") == 0) {
if (p->iph.protocol && p->iph.protocol != IPPROTO_GRE) {
fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
exit(-1);
}
p->iph.protocol = IPPROTO_GRE;
} else if (strcmp(*argv, "sit") == 0 ||
strcmp(*argv, "ipv6/ip") == 0) {
if (p->iph.protocol && p->iph.protocol != IPPROTO_IPV6) {
fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
exit(-1);
}
p->iph.protocol = IPPROTO_IPV6;
} else {
fprintf(stderr,"Cannot guess tunnel mode.\n");
exit(-1);
}
} else if (strcmp(*argv, "key") == 0) {
unsigned uval;
NEXT_ARG();
p->i_flags |= GRE_KEY;
p->o_flags |= GRE_KEY;
if (strchr(*argv, '.'))
p->i_key = p->o_key = get_addr32(*argv);
else {
if (get_unsigned(&uval, *argv, 0)<0) {
fprintf(stderr, "invalid value of \"key\"\n");
exit(-1);
}
p->i_key = p->o_key = htonl(uval);
}
} else if (strcmp(*argv, "ikey") == 0) {
unsigned uval;
NEXT_ARG();
p->i_flags |= GRE_KEY;
if (strchr(*argv, '.'))
p->o_key = get_addr32(*argv);
else {
if (get_unsigned(&uval, *argv, 0)<0) {
fprintf(stderr, "invalid value of \"ikey\"\n");
exit(-1);
}
p->i_key = htonl(uval);
}
} else if (strcmp(*argv, "okey") == 0) {
unsigned uval;
NEXT_ARG();
p->o_flags |= GRE_KEY;
if (strchr(*argv, '.'))
p->o_key = get_addr32(*argv);
else {
if (get_unsigned(&uval, *argv, 0)<0) {
fprintf(stderr, "invalid value of \"okey\"\n");
exit(-1);
}
p->o_key = htonl(uval);
}
} else if (strcmp(*argv, "seq") == 0) {
p->i_flags |= GRE_SEQ;
p->o_flags |= GRE_SEQ;
} else if (strcmp(*argv, "iseq") == 0) {
p->i_flags |= GRE_SEQ;
} else if (strcmp(*argv, "oseq") == 0) {
p->o_flags |= GRE_SEQ;
} else if (strcmp(*argv, "csum") == 0) {
p->i_flags |= GRE_CSUM;
p->o_flags |= GRE_CSUM;
} else if (strcmp(*argv, "icsum") == 0) {
p->i_flags |= GRE_CSUM;
} else if (strcmp(*argv, "ocsum") == 0) {
p->o_flags |= GRE_CSUM;
} else if (strcmp(*argv, "nopmtudisc") == 0) {
p->iph.frag_off = 0;
} else if (strcmp(*argv, "pmtudisc") == 0) {
//.........这里部分代码省略.........
示例2: gred_parse_opt
/*
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
*/
static int gred_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
{
int ok=0;
struct tc_gred_qopt opt;
unsigned burst = 0;
unsigned avpkt = 0;
double probability = 0.02;
unsigned rate = 0;
int wlog;
__u8 sbuf[256];
struct rtattr *tail;
memset(&opt, 0, sizeof(opt));
while (argc > 0) {
if (strcmp(*argv, "limit") == 0) {
NEXT_ARG();
if (get_size(&opt.limit, *argv)) {
my_printf("Illegal \"limit\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "setup") == 0) {
if (ok) {
my_printf("Illegal \"setup\"\n");
return -1;
}
return init_gred(qu,argc-1, argv+1,n);
} else if (strcmp(*argv, "min") == 0) {
NEXT_ARG();
if (get_size(&opt.qth_min, *argv)) {
my_printf("Illegal \"min\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "max") == 0) {
NEXT_ARG();
if (get_size(&opt.qth_max, *argv)) {
my_printf("Illegal \"max\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "DP") == 0) {
NEXT_ARG();
opt.DP=strtol(*argv, (char **)NULL, 10);
DPRINTF ("\n ******* DP =%u\n",opt.DP);
if (opt.DP >MAX_DPs) { /* need a better error check */
my_printf("DP =%u \n",opt.DP);
my_printf("Illegal \"DP\"\n");
my_printf("GRED: only %d DPs are currently supported\n",MAX_DPs);
return -1;
}
ok++;
} else if (strcmp(*argv, "burst") == 0) {
NEXT_ARG();
if (get_unsigned(&burst, *argv, 0)) {
my_printf("Illegal \"burst\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "avpkt") == 0) {
NEXT_ARG();
if (get_size(&avpkt, *argv)) {
my_printf("Illegal \"avpkt\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "probability") == 0) {
NEXT_ARG();
if (sscanf(*argv, "%lg", &probability) != 1) {
my_printf("Illegal \"probability\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "prio") == 0) {
NEXT_ARG();
opt.prio=strtol(*argv, (char **)NULL, 10);
/* some error check here */
ok++;
} else if (strcmp(*argv, "bandwidth") == 0) {
NEXT_ARG();
if (get_rate(&rate, *argv)) {
my_printf("Illegal \"bandwidth\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "help") == 0) {
explain();
return -1;
} else {
my_printf("What is \"%s\"?\n", *argv);
explain();
return -1;
}
argc--; argv++;
}
//.........这里部分代码省略.........
示例3: parse_args
/* Dies on error */
static void parse_args(char **argv, int cmd, struct ip_tunnel_parm *p)
{
static const char keywords[] ALIGN1 =
"mode\0""ipip\0""ip/ip\0""gre\0""gre/ip\0""sit\0""ipv6/ip\0"
"key\0""ikey\0""okey\0""seq\0""iseq\0""oseq\0"
"csum\0""icsum\0""ocsum\0""nopmtudisc\0""pmtudisc\0"
"remote\0""any\0""local\0""dev\0"
"ttl\0""inherit\0""tos\0""dsfield\0"
"name\0";
enum {
ARG_mode, ARG_ipip, ARG_ip_ip, ARG_gre, ARG_gre_ip, ARG_sit, ARG_ip6_ip,
ARG_key, ARG_ikey, ARG_okey, ARG_seq, ARG_iseq, ARG_oseq,
ARG_csum, ARG_icsum, ARG_ocsum, ARG_nopmtudisc, ARG_pmtudisc,
ARG_remote, ARG_any, ARG_local, ARG_dev,
ARG_ttl, ARG_inherit, ARG_tos, ARG_dsfield,
ARG_name
};
int count = 0;
char medium[IFNAMSIZ];
int key;
memset(p, 0, sizeof(*p));
medium[0] = '\0';
p->iph.version = 4;
p->iph.ihl = 5;
#ifndef IP_DF
#define IP_DF 0x4000 /* Flag: "Don't Fragment" */
#endif
p->iph.frag_off = htons(IP_DF);
while (*argv) {
key = index_in_strings(keywords, *argv);
if (key == ARG_mode) {
NEXT_ARG();
key = index_in_strings(keywords, *argv);
if (key == ARG_ipip ||
key == ARG_ip_ip) {
if (p->iph.protocol && p->iph.protocol != IPPROTO_IPIP) {
bb_error_msg_and_die("%s tunnel mode", "you managed to ask for more than one");
}
p->iph.protocol = IPPROTO_IPIP;
} else if (key == ARG_gre ||
key == ARG_gre_ip) {
if (p->iph.protocol && p->iph.protocol != IPPROTO_GRE) {
bb_error_msg_and_die("%s tunnel mode", "you managed to ask for more than one");
}
p->iph.protocol = IPPROTO_GRE;
} else if (key == ARG_sit ||
key == ARG_ip6_ip) {
if (p->iph.protocol && p->iph.protocol != IPPROTO_IPV6) {
bb_error_msg_and_die("%s tunnel mode", "you managed to ask for more than one");
}
p->iph.protocol = IPPROTO_IPV6;
} else {
bb_error_msg_and_die("%s tunnel mode", "cannot guess");
}
} else if (key == ARG_key) {
unsigned uval;
NEXT_ARG();
p->i_flags |= GRE_KEY;
p->o_flags |= GRE_KEY;
if (strchr(*argv, '.'))
p->i_key = p->o_key = get_addr32(*argv);
else {
uval = get_unsigned(*argv, "key");
p->i_key = p->o_key = htonl(uval);
}
} else if (key == ARG_ikey) {
unsigned uval;
NEXT_ARG();
p->i_flags |= GRE_KEY;
if (strchr(*argv, '.'))
p->o_key = get_addr32(*argv);
else {
uval = get_unsigned(*argv, "ikey");
p->i_key = htonl(uval);
}
} else if (key == ARG_okey) {
unsigned uval;
NEXT_ARG();
p->o_flags |= GRE_KEY;
if (strchr(*argv, '.'))
p->o_key = get_addr32(*argv);
else {
uval = get_unsigned(*argv, "okey");
p->o_key = htonl(uval);
}
} else if (key == ARG_seq) {
p->i_flags |= GRE_SEQ;
p->o_flags |= GRE_SEQ;
} else if (key == ARG_iseq) {
p->i_flags |= GRE_SEQ;
} else if (key == ARG_oseq) {
p->o_flags |= GRE_SEQ;
} else if (key == ARG_csum) {
p->i_flags |= GRE_CSUM;
p->o_flags |= GRE_CSUM;
} else if (key == ARG_icsum) {
//.........这里部分代码省略.........
示例4: cbq_parse_class_opt
static int cbq_parse_class_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
{
int wrr_ok=0, fopt_ok=0;
struct tc_ratespec r;
struct tc_cbq_lssopt lss;
struct tc_cbq_wrropt wrr;
struct tc_cbq_fopt fopt;
struct tc_cbq_ovl ovl;
__u32 rtab[256];
unsigned mpu=0;
int cell_log=-1;
int ewma_log=-1;
unsigned bndw = 0;
unsigned minburst=0, maxburst=0;
unsigned short overhead=0;
unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */
struct rtattr *tail;
memset(&r, 0, sizeof(r));
memset(&lss, 0, sizeof(lss));
memset(&wrr, 0, sizeof(wrr));
memset(&fopt, 0, sizeof(fopt));
memset(&ovl, 0, sizeof(ovl));
while (argc > 0) {
if (matches(*argv, "rate") == 0) {
NEXT_ARG();
if (get_rate(&r.rate, *argv)) {
explain1("rate");
return -1;
}
} else if (matches(*argv, "bandwidth") == 0) {
NEXT_ARG();
if (get_rate(&bndw, *argv)) {
explain1("bandwidth");
return -1;
}
} else if (matches(*argv, "minidle") == 0) {
NEXT_ARG();
if (get_u32(&lss.minidle, *argv, 0)) {
explain1("minidle");
return -1;
}
lss.change |= TCF_CBQ_LSS_MINIDLE;
} else if (matches(*argv, "minburst") == 0) {
NEXT_ARG();
if (get_u32(&minburst, *argv, 0)) {
explain1("minburst");
return -1;
}
lss.change |= TCF_CBQ_LSS_OFFTIME;
} else if (matches(*argv, "maxburst") == 0) {
NEXT_ARG();
if (get_u32(&maxburst, *argv, 0)) {
explain1("maxburst");
return -1;
}
lss.change |= TCF_CBQ_LSS_MAXIDLE;
} else if (matches(*argv, "bounded") == 0) {
lss.flags |= TCF_CBQ_LSS_BOUNDED;
lss.change |= TCF_CBQ_LSS_FLAGS;
} else if (matches(*argv, "borrow") == 0) {
lss.flags &= ~TCF_CBQ_LSS_BOUNDED;
lss.change |= TCF_CBQ_LSS_FLAGS;
} else if (matches(*argv, "isolated") == 0) {
lss.flags |= TCF_CBQ_LSS_ISOLATED;
lss.change |= TCF_CBQ_LSS_FLAGS;
} else if (matches(*argv, "sharing") == 0) {
lss.flags &= ~TCF_CBQ_LSS_ISOLATED;
lss.change |= TCF_CBQ_LSS_FLAGS;
} else if (matches(*argv, "ewma") == 0) {
NEXT_ARG();
if (get_integer(&ewma_log, *argv, 0)) {
explain1("ewma");
return -1;
}
if (ewma_log > 31) {
fprintf(stderr, "ewma_log must be < 32\n");
return -1;
}
lss.change |= TCF_CBQ_LSS_EWMA;
} else if (matches(*argv, "cell") == 0) {
unsigned cell;
int i;
NEXT_ARG();
if (get_size(&cell, *argv)) {
explain1("cell");
return -1;
}
for (i=0; i<32; i++)
if ((1<<i) == cell)
break;
if (i>=32) {
fprintf(stderr, "cell must be 2^n\n");
return -1;
}
cell_log = i;
} else if (matches(*argv, "prio") == 0) {
unsigned prio;
NEXT_ARG();
//.........这里部分代码省略.........
示例5: do_ipmonitor
int do_ipmonitor(int argc, char **argv)
{
struct rtnl_handle rth;
char *file = NULL;
unsigned groups = ~RTMGRP_TC;
int llink=0;
int laddr=0;
int lroute=0;
ipaddr_reset_filter(1);
iproute_reset_filter();
ipneigh_reset_filter();
while (argc > 0) {
if (matches(*argv, "file") == 0) {
NEXT_ARG();
file = *argv;
} else if (matches(*argv, "link") == 0) {
llink=1;
groups = 0;
} else if (matches(*argv, "address") == 0) {
laddr=1;
groups = 0;
} else if (matches(*argv, "route") == 0) {
lroute=1;
groups = 0;
} else if (strcmp(*argv, "all") == 0) {
groups = ~RTMGRP_TC;
} else if (matches(*argv, "help") == 0) {
usage();
} else {
fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
exit(-1);
}
argc--; argv++;
}
if (llink)
groups |= RTMGRP_LINK;
if (laddr) {
if (!preferred_family || preferred_family == AF_INET)
groups |= RTMGRP_IPV4_IFADDR;
if (!preferred_family || preferred_family == AF_INET6)
groups |= RTMGRP_IPV6_IFADDR;
}
if (lroute) {
if (!preferred_family || preferred_family == AF_INET)
groups |= RTMGRP_IPV4_ROUTE;
if (!preferred_family || preferred_family == AF_INET6)
groups |= RTMGRP_IPV6_ROUTE;
}
if (file) {
FILE *fp;
fp = fopen(file, "r");
if (fp == NULL) {
perror("Cannot fopen");
exit(-1);
}
return rtnl_from_file(fp, accept_msg, (void*)stdout);
}
if (rtnl_open(&rth, groups) < 0)
exit(1);
ll_init_map(&rth);
if (rtnl_listen(&rth, accept_msg, (void*)stdout) < 0)
exit(2);
exit(0);
}示例6: iproute_modify
static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
{
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct rtmsg r;
char buf[1024];
} req;
char mxbuf[256];
struct rtattr * mxrta = (void*)mxbuf;
unsigned mxlock = 0;
char *d = NULL;
int gw_ok = 0;
int dst_ok = 0;
int proto_ok = 0;
int type_ok = 0;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.r.rtm_family = preferred_family;
req.r.rtm_table = RT_TABLE_MAIN;
req.r.rtm_scope = RT_SCOPE_NOWHERE;
if (cmd != RTM_DELROUTE) {
req.r.rtm_protocol = RTPROT_BOOT;
req.r.rtm_scope = RT_SCOPE_UNIVERSE;
req.r.rtm_type = RTN_UNICAST;
}
mxrta->rta_type = RTA_METRICS;
mxrta->rta_len = RTA_LENGTH(0);
while (argc > 0) {
if (strcmp(*argv, "src") == 0) {
inet_prefix addr;
NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family;
}
addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "via") == 0) {
inet_prefix addr;
gw_ok = 1;
NEXT_ARG();
get_addr(&addr, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family;
}
addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen);
} else if (strcmp(*argv, "mtu") == 0) {
unsigned mtu;
NEXT_ARG();
if (strcmp(*argv, "lock") == 0) {
mxlock |= (1<<RTAX_MTU);
NEXT_ARG();
}
if (get_unsigned(&mtu, *argv, 0)) {
invarg("\"mtu\" value is invalid\n", *argv);
}
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
} else if (matches(*argv, "protocol") == 0) {
int prot;
NEXT_ARG();
if (rtnl_rtprot_a2n(&prot, *argv))
invarg("\"protocol\" value is invalid\n", *argv);
req.r.rtm_protocol = prot;
proto_ok =1;
} else if (strcmp(*argv, "dev") == 0 ||
strcmp(*argv, "oif") == 0) {
NEXT_ARG();
d = *argv;
} else {
int type;
inet_prefix dst;
if (strcmp(*argv, "to") == 0) {
NEXT_ARG();
}
if ((**argv < '0' || **argv > '9') &&
rtnl_rtntype_a2n(&type, *argv) == 0) {
NEXT_ARG();
req.r.rtm_type = type;
type_ok = 1;
}
if (dst_ok) {
duparg2("to", *argv);
}
get_prefix(&dst, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = dst.family;
}
req.r.rtm_dst_len = dst.bitlen;
dst_ok = 1;
if (dst.bytelen) {
addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
//.........这里部分代码省略.........
示例7: iproute_get
static int iproute_get(int argc, char **argv)
{
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct rtmsg r;
char buf[1024];
} req;
char *idev = NULL;
char *odev = NULL;
int connected = 0;
int from_ok = 0;
const char *options[] = { "from", "iif", "oif", "dev", "notify", "connected", "to", 0 };
memset(&req, 0, sizeof(req));
iproute_reset_filter();
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = RTM_GETROUTE;
req.r.rtm_family = preferred_family;
req.r.rtm_table = 0;
req.r.rtm_protocol = 0;
req.r.rtm_scope = 0;
req.r.rtm_type = 0;
req.r.rtm_src_len = 0;
req.r.rtm_dst_len = 0;
req.r.rtm_tos = 0;
while (argc > 0) {
switch (compare_string_array(options, *argv)) {
case 0: /* from */
{
inet_prefix addr;
NEXT_ARG();
from_ok = 1;
get_prefix(&addr, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family;
}
if (addr.bytelen) {
addattr_l(&req.n, sizeof(req), RTA_SRC, &addr.data, addr.bytelen);
}
req.r.rtm_src_len = addr.bitlen;
break;
}
case 1: /* iif */
NEXT_ARG();
idev = *argv;
break;
case 2: /* oif */
case 3: /* dev */
NEXT_ARG();
odev = *argv;
break;
case 4: /* notify */
req.r.rtm_flags |= RTM_F_NOTIFY;
break;
case 5: /* connected */
connected = 1;
break;
case 6: /* to */
NEXT_ARG();
default:
{
inet_prefix addr;
get_prefix(&addr, *argv, req.r.rtm_family);
if (req.r.rtm_family == AF_UNSPEC) {
req.r.rtm_family = addr.family;
}
if (addr.bytelen) {
addattr_l(&req.n, sizeof(req), RTA_DST, &addr.data, addr.bytelen);
}
req.r.rtm_dst_len = addr.bitlen;
}
argc--; argv++;
}
}
if (req.r.rtm_dst_len == 0) {
bb_error_msg_and_die("need at least destination address");
}
if (rtnl_open(&rth, 0) < 0)
exit(1);
ll_init_map(&rth);
if (idev || odev) {
int idx;
if (idev) {
if ((idx = ll_name_to_index(idev)) == 0) {
bb_error_msg("Cannot find device \"%s\"", idev);
return -1;
}
addattr32(&req.n, sizeof(req), RTA_IIF, idx);
}
if (odev) {
//.........这里部分代码省略.........
示例8: do_add_or_delete
/* Return value becomes exitcode. It's okay to not return at all */
static int do_add_or_delete(char **argv, const unsigned rtm)
{
static const char keywords[] ALIGN1 =
"link\0""name\0""type\0""dev\0";
enum {
ARG_link,
ARG_name,
ARG_type,
ARG_dev,
};
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct ifinfomsg i;
char buf[1024];
} req;
smalluint arg;
char *name_str = NULL, *link_str = NULL, *type_str = NULL, *dev_str = NULL;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = rtm;
req.i.ifi_family = preferred_family;
if (rtm == RTM_NEWLINK)
req.n.nlmsg_flags |= NLM_F_CREATE|NLM_F_EXCL;
while (*argv) {
arg = index_in_substrings(keywords, *argv);
if (arg == ARG_type) {
NEXT_ARG();
type_str = *argv++;
break;
}
if (arg == ARG_link) {
NEXT_ARG();
link_str = *argv;
} else if (arg == ARG_name) {
NEXT_ARG();
name_str = *argv;
} else {
if (arg == ARG_dev) {
if (dev_str)
duparg(*argv, "dev");
NEXT_ARG();
}
dev_str = *argv;
}
argv++;
}
xrtnl_open(&rth);
ll_init_map(&rth);
if (type_str) {
struct rtattr *linkinfo = NLMSG_TAIL(&req.n);
addattr_l(&req.n, sizeof(req), IFLA_LINKINFO, NULL, 0);
addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type_str,
strlen(type_str));
if (*argv) {
struct rtattr *data = NLMSG_TAIL(&req.n);
addattr_l(&req.n, sizeof(req), IFLA_INFO_DATA, NULL, 0);
if (strcmp(type_str, "vlan") == 0)
vlan_parse_opt(argv, &req.n, sizeof(req));
data->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)data;
}
linkinfo->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)linkinfo;
}
if (rtm != RTM_NEWLINK) {
if (!dev_str)
return 1; /* Need a device to delete */
req.i.ifi_index = xll_name_to_index(dev_str);
} else {
if (!name_str)
name_str = dev_str;
if (link_str) {
int idx = xll_name_to_index(link_str);
addattr_l(&req.n, sizeof(req), IFLA_LINK, &idx, 4);
}
}
if (name_str) {
const size_t name_len = strlen(name_str) + 1;
if (name_len < 2 || name_len > IFNAMSIZ)
invarg(name_str, "name");
addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name_str, name_len);
}
if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
return 2;
return 0;
}示例9: do_show_or_flush
int do_show_or_flush(int argc, char **argv, int flush)
{
char *filter_dev = NULL;
int state_given = 0;
struct ndmsg ndm = { 0 };
ipneigh_reset_filter();
if (!filter.family)
filter.family = preferred_family;
if (flush) {
if (argc <= 0) {
fprintf(stderr, "Flush requires arguments.\n");
return -1;
}
filter.state = ~(NUD_PERMANENT|NUD_NOARP);
} else
filter.state = 0xFF & ~NUD_NOARP;
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
if (filter_dev)
duparg("dev", *argv);
filter_dev = *argv;
} else if (strcmp(*argv, "unused") == 0) {
filter.unused_only = 1;
} else if (strcmp(*argv, "nud") == 0) {
unsigned state;
NEXT_ARG();
if (!state_given) {
state_given = 1;
filter.state = 0;
}
if (nud_state_a2n(&state, *argv)) {
if (strcmp(*argv, "all") != 0)
invarg("nud state is bad", *argv);
state = ~0;
if (flush)
state &= ~NUD_NOARP;
}
if (state == 0)
state = 0x100;
filter.state |= state;
} else if (strcmp(*argv, "proxy") == 0)
ndm.ndm_flags = NTF_PROXY;
else {
if (strcmp(*argv, "to") == 0) {
NEXT_ARG();
}
if (matches(*argv, "help") == 0)
usage();
get_prefix(&filter.pfx, *argv, filter.family);
if (filter.family == AF_UNSPEC)
filter.family = filter.pfx.family;
}
argc--; argv++;
}
ll_init_map(&rth);
if (filter_dev) {
if ((filter.index = ll_name_to_index(filter_dev)) == 0) {
fprintf(stderr, "Cannot find device \"%s\"\n", filter_dev);
return -1;
}
}
if (flush) {
int round = 0;
char flushb[4096-512];
filter.flushb = flushb;
filter.flushp = 0;
filter.flushe = sizeof(flushb);
filter.state &= ~NUD_FAILED;
while (round < MAX_ROUNDS) {
ndm.ndm_family = filter.family;
if (rtnl_dump_request(&rth, RTM_GETNEIGH, &ndm, sizeof(struct ndmsg)) < 0) {
perror("Cannot send dump request");
exit(1);
}
filter.flushed = 0;
if (rtnl_dump_filter(&rth, print_neigh, stdout, NULL, NULL) < 0) {
fprintf(stderr, "Flush terminated\n");
exit(1);
}
if (filter.flushed == 0) {
if (show_stats) {
if (round == 0)
printf("Nothing to flush.\n");
else
printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
}
fflush(stdout);
return 0;
}
//.........这里部分代码省略.........
示例10: do_set
/* Return value becomes exitcode. It's okay to not return at all */
static int do_set(char **argv)
{
char *dev = NULL;
uint32_t mask = 0;
uint32_t flags = 0;
int qlen = -1;
int mtu = -1;
char *newaddr = NULL;
char *newbrd = NULL;
struct ifreq ifr0, ifr1;
char *newname = NULL;
int htype, halen;
static const char keywords[] ALIGN1 =
"up\0""down\0""name\0""mtu\0""qlen\0""multicast\0"
"arp\0""address\0""dev\0";
enum { ARG_up = 0, ARG_down, ARG_name, ARG_mtu, ARG_qlen, ARG_multicast,
ARG_arp, ARG_addr, ARG_dev };
static const char str_on_off[] ALIGN1 = "on\0""off\0";
enum { PARM_on = 0, PARM_off };
smalluint key;
while (*argv) {
/* substring search ensures that e.g. "addr" and "address"
* are both accepted */
key = index_in_substrings(keywords, *argv);
if (key == ARG_up) {
mask |= IFF_UP;
flags |= IFF_UP;
} else if (key == ARG_down) {
mask |= IFF_UP;
flags &= ~IFF_UP;
} else if (key == ARG_name) {
NEXT_ARG();
newname = *argv;
} else if (key == ARG_mtu) {
NEXT_ARG();
if (mtu != -1)
duparg("mtu", *argv);
mtu = get_unsigned(*argv, "mtu");
} else if (key == ARG_qlen) {
NEXT_ARG();
if (qlen != -1)
duparg("qlen", *argv);
qlen = get_unsigned(*argv, "qlen");
} else if (key == ARG_addr) {
NEXT_ARG();
newaddr = *argv;
} else if (key >= ARG_dev) {
if (key == ARG_dev) {
NEXT_ARG();
}
if (dev)
duparg2("dev", *argv);
dev = *argv;
} else {
int param;
NEXT_ARG();
param = index_in_strings(str_on_off, *argv);
if (key == ARG_multicast) {
if (param < 0)
die_must_be_on_off("multicast");
mask |= IFF_MULTICAST;
if (param == PARM_on)
flags |= IFF_MULTICAST;
else
flags &= ~IFF_MULTICAST;
} else if (key == ARG_arp) {
if (param < 0)
die_must_be_on_off("arp");
mask |= IFF_NOARP;
if (param == PARM_on)
flags &= ~IFF_NOARP;
else
flags |= IFF_NOARP;
}
}
argv++;
}
if (!dev) {
bb_error_msg_and_die(bb_msg_requires_arg, "\"dev\"");
}
if (newaddr || newbrd) {
halen = get_address(dev, &htype);
if (newaddr) {
parse_address(dev, htype, halen, newaddr, &ifr0);
set_address(&ifr0, 0);
}
if (newbrd) {
parse_address(dev, htype, halen, newbrd, &ifr1);
set_address(&ifr1, 1);
}
}
if (newname && strcmp(dev, newname)) {
do_changename(dev, newname);
dev = newname;
}
//.........这里部分代码省略.........
示例11: vlan_parse_opt
static void vlan_parse_opt(char **argv, struct nlmsghdr *n, unsigned int size)
{
static const char keywords[] ALIGN1 =
"id\0"
"protocol\0"
"reorder_hdr\0"
"gvrp\0"
"mvrp\0"
"loose_binding\0"
;
static const char protocols[] ALIGN1 =
"802.1q\0"
"802.1ad\0"
;
static const char str_on_off[] ALIGN1 =
"on\0"
"off\0"
;
enum {
ARG_id = 0,
ARG_reorder_hdr,
ARG_gvrp,
ARG_mvrp,
ARG_loose_binding,
ARG_protocol,
};
enum {
PROTO_8021Q = 0,
PROTO_8021AD,
};
enum {
PARM_on = 0,
PARM_off
};
int arg;
uint16_t id, proto;
struct ifla_vlan_flags flags = {};
while (*argv) {
arg = index_in_substrings(keywords, *argv);
if (arg < 0)
invarg(*argv, "type vlan");
NEXT_ARG();
if (arg == ARG_id) {
id = get_u16(*argv, "id");
addattr_l(n, size, IFLA_VLAN_ID, &id, sizeof(id));
} else if (arg == ARG_protocol) {
arg = index_in_substrings(protocols, *argv);
if (arg == PROTO_8021Q)
proto = ETH_P_8021Q;
else if (arg == PROTO_8021AD)
proto = ETH_P_8021AD;
else
bb_error_msg_and_die("unknown VLAN encapsulation protocol '%s'",
*argv);
addattr_l(n, size, IFLA_VLAN_PROTOCOL, &proto, sizeof(proto));
} else {
int param = index_in_strings(str_on_off, *argv);
if (param < 0)
die_must_be_on_off(nth_string(keywords, arg));
if (arg == ARG_reorder_hdr) {
flags.mask |= VLAN_FLAG_REORDER_HDR;
flags.flags &= ~VLAN_FLAG_REORDER_HDR;
if (param == PARM_on)
flags.flags |= VLAN_FLAG_REORDER_HDR;
} else if (arg == ARG_gvrp) {
flags.mask |= VLAN_FLAG_GVRP;
flags.flags &= ~VLAN_FLAG_GVRP;
if (param == PARM_on)
flags.flags |= VLAN_FLAG_GVRP;
} else if (arg == ARG_mvrp) {
flags.mask |= VLAN_FLAG_MVRP;
flags.flags &= ~VLAN_FLAG_MVRP;
if (param == PARM_on)
flags.flags |= VLAN_FLAG_MVRP;
} else { /*if (arg == ARG_loose_binding) */
flags.mask |= VLAN_FLAG_LOOSE_BINDING;
flags.flags &= ~VLAN_FLAG_LOOSE_BINDING;
if (param == PARM_on)
flags.flags |= VLAN_FLAG_LOOSE_BINDING;
}
}
argv++;
}
if (flags.mask)
addattr_l(n, size, IFLA_VLAN_FLAGS, &flags, sizeof(flags));
}示例12: ipntable_modify
static int ipntable_modify(int cmd, int flags, int argc, char **argv)
{
struct {
struct nlmsghdr n;
struct ndtmsg ndtm;
char buf[1024];
} req;
char *namep = NULL;
char *threshsp = NULL;
char *gc_intp = NULL;
char parms_buf[1024];
struct rtattr *parms_rta = (struct rtattr *)parms_buf;
int parms_change = 0;
memset(&req, 0, sizeof(req));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ndtmsg));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.ndtm.ndtm_family = preferred_family;
req.ndtm.ndtm_pad1 = 0;
req.ndtm.ndtm_pad2 = 0;
memset(&parms_buf, 0, sizeof(parms_buf));
parms_rta->rta_type = NDTA_PARMS;
parms_rta->rta_len = RTA_LENGTH(0);
while (argc > 0) {
if (strcmp(*argv, "name") == 0) {
int len;
NEXT_ARG();
if (namep)
duparg("NAME", *argv);
namep = *argv;
len = strlen(namep) + 1;
addattr_l(&req.n, sizeof(req), NDTA_NAME, namep, len);
} else if (strcmp(*argv, "thresh1") == 0) {
__u32 thresh1;
NEXT_ARG();
threshsp = *argv;
if (get_u32(&thresh1, *argv, 0))
invarg("\"thresh1\" value is invalid", *argv);
addattr32(&req.n, sizeof(req), NDTA_THRESH1, thresh1);
} else if (strcmp(*argv, "thresh2") == 0) {
__u32 thresh2;
NEXT_ARG();
threshsp = *argv;
if (get_u32(&thresh2, *argv, 0))
invarg("\"thresh2\" value is invalid", *argv);
addattr32(&req.n, sizeof(req), NDTA_THRESH2, thresh2);
} else if (strcmp(*argv, "thresh3") == 0) {
__u32 thresh3;
NEXT_ARG();
threshsp = *argv;
if (get_u32(&thresh3, *argv, 0))
invarg("\"thresh3\" value is invalid", *argv);
addattr32(&req.n, sizeof(req), NDTA_THRESH3, thresh3);
} else if (strcmp(*argv, "gc_int") == 0) {
__u64 gc_int;
NEXT_ARG();
gc_intp = *argv;
if (get_u64(&gc_int, *argv, 0))
invarg("\"gc_int\" value is invalid", *argv);
addattr_l(&req.n, sizeof(req), NDTA_GC_INTERVAL,
&gc_int, sizeof(gc_int));
} else if (strcmp(*argv, "dev") == 0) {
__u32 ifindex;
NEXT_ARG();
ifindex = ll_name_to_index(*argv);
if (ifindex == 0) {
fprintf(stderr, "Cannot find device \"%s\"\n", *argv);
return -1;
}
rta_addattr32(parms_rta, sizeof(parms_buf),
NDTPA_IFINDEX, ifindex);
} else if (strcmp(*argv, "base_reachable") == 0) {
__u64 breachable;
NEXT_ARG();
if (get_u64(&breachable, *argv, 0))
invarg("\"base_reachable\" value is invalid", *argv);
//.........这里部分代码省略.........
示例13: geneve_parse_opt
static int geneve_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
__u32 vni = 0;
int vni_set = 0;
__u32 daddr = 0;
struct in6_addr daddr6 = IN6ADDR_ANY_INIT;
__u32 label = 0;
__u8 ttl = 0;
__u8 tos = 0;
__u16 dstport = 0;
bool metadata = 0;
__u8 udpcsum = 0;
bool udpcsum_set = false;
__u8 udp6zerocsumtx = 0;
bool udp6zerocsumtx_set = false;
__u8 udp6zerocsumrx = 0;
bool udp6zerocsumrx_set = false;
while (argc > 0) {
if (!matches(*argv, "id") ||
!matches(*argv, "vni")) {
NEXT_ARG();
if (get_u32(&vni, *argv, 0) ||
vni >= 1u << 24)
invarg("invalid id", *argv);
vni_set = 1;
} else if (!matches(*argv, "remote")) {
NEXT_ARG();
if (!inet_get_addr(*argv, &daddr, &daddr6)) {
fprintf(stderr, "Invalid address \"%s\"\n", *argv);
return -1;
}
if (IN6_IS_ADDR_MULTICAST(&daddr6) || IN_MULTICAST(ntohl(daddr)))
invarg("invalid remote address", *argv);
} else if (!matches(*argv, "ttl") ||
!matches(*argv, "hoplimit")) {
unsigned int uval;
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (get_unsigned(&uval, *argv, 0))
invarg("invalid TTL", *argv);
if (uval > 255)
invarg("TTL must be <= 255", *argv);
ttl = uval;
}
} else if (!matches(*argv, "tos") ||
!matches(*argv, "dsfield")) {
__u32 uval;
NEXT_ARG();
if (strcmp(*argv, "inherit") != 0) {
if (rtnl_dsfield_a2n(&uval, *argv))
invarg("bad TOS value", *argv);
tos = uval;
} else
tos = 1;
} else if (!matches(*argv, "label") ||
!matches(*argv, "flowlabel")) {
__u32 uval;
NEXT_ARG();
if (get_u32(&uval, *argv, 0) ||
(uval & ~LABEL_MAX_MASK))
invarg("invalid flowlabel", *argv);
label = htonl(uval);
} else if (!matches(*argv, "dstport")) {
NEXT_ARG();
if (get_u16(&dstport, *argv, 0))
invarg("dstport", *argv);
} else if (!matches(*argv, "external")) {
metadata = true;
} else if (!matches(*argv, "noexternal")) {
metadata = false;
} else if (!matches(*argv, "udpcsum")) {
udpcsum = 1;
udpcsum_set = true;
} else if (!matches(*argv, "noudpcsum")) {
udpcsum = 0;
udpcsum_set = true;
} else if (!matches(*argv, "udp6zerocsumtx")) {
udp6zerocsumtx = 1;
udp6zerocsumtx_set = true;
} else if (!matches(*argv, "noudp6zerocsumtx")) {
udp6zerocsumtx = 0;
udp6zerocsumtx_set = true;
} else if (!matches(*argv, "udp6zerocsumrx")) {
udp6zerocsumrx = 1;
udp6zerocsumrx_set = true;
} else if (!matches(*argv, "noudp6zerocsumrx")) {
udp6zerocsumrx = 0;
udp6zerocsumrx_set = true;
} else if (matches(*argv, "help") == 0) {
explain();
return -1;
} else {
fprintf(stderr, "geneve: unknown command \"%s\"?\n", *argv);
explain();
return -1;
//.........这里部分代码省略.........
示例14: do_xfrm_monitor
int do_xfrm_monitor(int argc, char **argv)
{
char *file = NULL;
unsigned groups = ~((unsigned)0); /* XXX */
int lacquire=0;
int lexpire=0;
int laevent=0;
int lpolicy=0;
int lsa=0;
int lreport=0;
rtnl_close(&rth);
while (argc > 0) {
if (matches(*argv, "file") == 0) {
NEXT_ARG();
file = *argv;
} else if (matches(*argv, "acquire") == 0) {
lacquire=1;
groups = 0;
} else if (matches(*argv, "expire") == 0) {
lexpire=1;
groups = 0;
} else if (matches(*argv, "SA") == 0) {
lsa=1;
groups = 0;
} else if (matches(*argv, "aevent") == 0) {
laevent=1;
groups = 0;
} else if (matches(*argv, "policy") == 0) {
lpolicy=1;
groups = 0;
} else if (matches(*argv, "report") == 0) {
lreport=1;
groups = 0;
} else if (matches(*argv, "help") == 0) {
usage();
} else {
fprintf(stderr, "Argument \"%s\" is unknown, try \"ip xfrm monitor help\".\n", *argv);
exit(-1);
}
argc--; argv++;
}
if (lacquire)
groups |= nl_mgrp(XFRMNLGRP_ACQUIRE);
if (lexpire)
groups |= nl_mgrp(XFRMNLGRP_EXPIRE);
if (lsa)
groups |= nl_mgrp(XFRMNLGRP_SA);
if (lpolicy)
groups |= nl_mgrp(XFRMNLGRP_POLICY);
if (laevent)
groups |= nl_mgrp(XFRMNLGRP_AEVENTS);
if (lreport)
groups |= nl_mgrp(XFRMNLGRP_REPORT);
if (file) {
FILE *fp;
fp = fopen(file, "r");
if (fp == NULL) {
perror("Cannot fopen");
exit(-1);
}
return rtnl_from_file(fp, xfrm_accept_msg, (void*)stdout);
}
//ll_init_map(&rth);
if (rtnl_open_byproto(&rth, groups, NETLINK_XFRM) < 0)
exit(1);
if (rtnl_listen(&rth, xfrm_accept_msg, (void*)stdout) < 0)
exit(2);
return 0;
}示例15: xfrm_policy_modify
static int xfrm_policy_modify(int cmd, unsigned flags, int argc, char **argv)
{
struct rtnl_handle rth;
struct {
struct nlmsghdr n;
struct xfrm_userpolicy_info xpinfo;
char buf[RTA_BUF_SIZE];
} req;
char *dirp = NULL;
char *selp = NULL;
char *ptypep = NULL;
char *sctxp = NULL;
struct xfrm_userpolicy_type upt;
char tmpls_buf[XFRM_TMPLS_BUF_SIZE];
int tmpls_len = 0;
struct xfrm_mark mark = {0, 0};
struct {
struct xfrm_user_sec_ctx sctx;
char str[CTX_BUF_SIZE];
} ctx;
memset(&req, 0, sizeof(req));
memset(&upt, 0, sizeof(upt));
memset(&tmpls_buf, 0, sizeof(tmpls_buf));
memset(&ctx, 0, sizeof(ctx));
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.xpinfo));
req.n.nlmsg_flags = NLM_F_REQUEST|flags;
req.n.nlmsg_type = cmd;
req.xpinfo.sel.family = preferred_family;
req.xpinfo.lft.soft_byte_limit = XFRM_INF;
req.xpinfo.lft.hard_byte_limit = XFRM_INF;
req.xpinfo.lft.soft_packet_limit = XFRM_INF;
req.xpinfo.lft.hard_packet_limit = XFRM_INF;
while (argc > 0) {
if (strcmp(*argv, "dir") == 0) {
if (dirp)
duparg("dir", *argv);
dirp = *argv;
NEXT_ARG();
xfrm_policy_dir_parse(&req.xpinfo.dir, &argc, &argv);
} else if (strcmp(*argv, "ctx") == 0) {
char *context;
if (sctxp)
duparg("ctx", *argv);
sctxp = *argv;
NEXT_ARG();
context = *argv;
xfrm_sctx_parse((char *)&ctx.str, context, &ctx.sctx);
} else if (strcmp(*argv, "mark") == 0) {
xfrm_parse_mark(&mark, &argc, &argv);
} else if (strcmp(*argv, "index") == 0) {
NEXT_ARG();
if (get_u32(&req.xpinfo.index, *argv, 0))
invarg("INDEX value is invalid", *argv);
} else if (strcmp(*argv, "ptype") == 0) {
if (ptypep)
duparg("ptype", *argv);
ptypep = *argv;
NEXT_ARG();
xfrm_policy_ptype_parse(&upt.type, &argc, &argv);
} else if (strcmp(*argv, "action") == 0) {
NEXT_ARG();
if (strcmp(*argv, "allow") == 0)
req.xpinfo.action = XFRM_POLICY_ALLOW;
else if (strcmp(*argv, "block") == 0)
req.xpinfo.action = XFRM_POLICY_BLOCK;
else
invarg("ACTION value is invalid\n", *argv);
} else if (strcmp(*argv, "priority") == 0) {
NEXT_ARG();
if (get_u32(&req.xpinfo.priority, *argv, 0))
invarg("PRIORITY value is invalid", *argv);
} else if (strcmp(*argv, "flag") == 0) {
NEXT_ARG();
xfrm_policy_flag_parse(&req.xpinfo.flags, &argc,
&argv);
} else if (strcmp(*argv, "limit") == 0) {
NEXT_ARG();
xfrm_lifetime_cfg_parse(&req.xpinfo.lft, &argc, &argv);
} else if (strcmp(*argv, "tmpl") == 0) {
struct xfrm_user_tmpl *tmpl;
if (tmpls_len + sizeof(*tmpl) > sizeof(tmpls_buf)) {
fprintf(stderr, "Too many tmpls: buffer overflow\n");
exit(1);
}
tmpl = (struct xfrm_user_tmpl *)((char *)tmpls_buf + tmpls_len);
tmpl->family = preferred_family;
tmpl->aalgos = (~(__u32)0);
tmpl->ealgos = (~(__u32)0);
tmpl->calgos = (~(__u32)0);
NEXT_ARG();
//.........这里部分代码省略.........