diff options
Diffstat (limited to 'networking/libiproute/ipaddress.c')
-rw-r--r-- | networking/libiproute/ipaddress.c | 139 |
1 files changed, 70 insertions, 69 deletions
diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c index 03f5073fb..f2e340a42 100644 --- a/networking/libiproute/ipaddress.c +++ b/networking/libiproute/ipaddress.c @@ -40,7 +40,7 @@ typedef struct filter_t { inet_prefix pfx; } filter_t; -#define filter (*(filter_t*)&bb_common_bufsiz1) +#define G_filter (*(filter_t*)&bb_common_bufsiz1) static void print_link_flags(unsigned flags, unsigned mdown) @@ -107,9 +107,9 @@ static NOINLINE int print_linkinfo(const struct nlmsghdr *n) if (len < 0) return -1; - if (filter.ifindex && ifi->ifi_index != filter.ifindex) + if (G_filter.ifindex && ifi->ifi_index != G_filter.ifindex) return 0; - if (filter.up && !(ifi->ifi_flags & IFF_UP)) + if (G_filter.up && !(ifi->ifi_flags & IFF_UP)) return 0; memset(tb, 0, sizeof(tb)); @@ -118,9 +118,9 @@ static NOINLINE int print_linkinfo(const struct nlmsghdr *n) bb_error_msg("nil ifname"); return -1; } - if (filter.label - && (!filter.family || filter.family == AF_PACKET) - && fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0) + if (G_filter.label + && (!G_filter.family || G_filter.family == AF_PACKET) + && fnmatch(G_filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0) ) { return 0; } @@ -161,10 +161,10 @@ static NOINLINE int print_linkinfo(const struct nlmsghdr *n) printf("master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1)); } #endif - if (filter.showqueue) + if (G_filter.showqueue) print_queuelen((char*)RTA_DATA(tb[IFLA_IFNAME])); - if (!filter.family || filter.family == AF_PACKET) { + if (!G_filter.family || G_filter.family == AF_PACKET) { SPRINT_BUF(b1); printf("%c link/%s ", _SL_, ll_type_n2a(ifi->ifi_type, b1)); @@ -192,11 +192,11 @@ static NOINLINE int print_linkinfo(const struct nlmsghdr *n) static int flush_update(void) { - if (rtnl_send(filter.rth, filter.flushb, filter.flushp) < 0) { + if (rtnl_send(G_filter.rth, G_filter.flushb, G_filter.flushp) < 0) { bb_perror_msg("failed to send flush request"); return -1; } - filter.flushp = 0; + G_filter.flushp = 0; return 0; } @@ -217,7 +217,7 @@ static int FAST_FUNC print_addrinfo(const struct sockaddr_nl *who UNUSED_PARAM, return -1; } - if (filter.flushb && n->nlmsg_type != RTM_NEWADDR) + if (G_filter.flushb && n->nlmsg_type != RTM_NEWADDR) return 0; memset(rta_tb, 0, sizeof(rta_tb)); @@ -228,52 +228,52 @@ static int FAST_FUNC print_addrinfo(const struct sockaddr_nl *who UNUSED_PARAM, if (!rta_tb[IFA_ADDRESS]) rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL]; - if (filter.ifindex && filter.ifindex != ifa->ifa_index) + if (G_filter.ifindex && G_filter.ifindex != ifa->ifa_index) return 0; - if ((filter.scope ^ ifa->ifa_scope) & filter.scopemask) + if ((G_filter.scope ^ ifa->ifa_scope) & G_filter.scopemask) return 0; - if ((filter.flags ^ ifa->ifa_flags) & filter.flagmask) + if ((G_filter.flags ^ ifa->ifa_flags) & G_filter.flagmask) return 0; - if (filter.label) { + if (G_filter.label) { const char *label; if (rta_tb[IFA_LABEL]) label = RTA_DATA(rta_tb[IFA_LABEL]); else label = ll_idx_n2a(ifa->ifa_index, b1); - if (fnmatch(filter.label, label, 0) != 0) + if (fnmatch(G_filter.label, label, 0) != 0) return 0; } - if (filter.pfx.family) { + if (G_filter.pfx.family) { if (rta_tb[IFA_LOCAL]) { inet_prefix dst; memset(&dst, 0, sizeof(dst)); dst.family = ifa->ifa_family; memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL])); - if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen)) + if (inet_addr_match(&dst, &G_filter.pfx, G_filter.pfx.bitlen)) return 0; } } - if (filter.flushb) { + if (G_filter.flushb) { struct nlmsghdr *fn; - if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) { + if (NLMSG_ALIGN(G_filter.flushp) + n->nlmsg_len > G_filter.flushe) { if (flush_update()) return -1; } - fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp)); + fn = (struct nlmsghdr*)(G_filter.flushb + NLMSG_ALIGN(G_filter.flushp)); memcpy(fn, n, n->nlmsg_len); fn->nlmsg_type = RTM_DELADDR; fn->nlmsg_flags = NLM_F_REQUEST; - fn->nlmsg_seq = ++filter.rth->seq; - filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb; - filter.flushed = 1; + fn->nlmsg_seq = ++G_filter.rth->seq; + G_filter.flushp = (((char*)fn) + n->nlmsg_len) - G_filter.flushb; + G_filter.flushed = 1; return 0; } if (n->nlmsg_type == RTM_DELADDR) printf("Deleted "); - if (filter.oneline) + if (G_filter.oneline) printf("%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index)); if (ifa->ifa_family == AF_INET) printf(" inet "); @@ -366,14 +366,13 @@ static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo) if (n->nlmsg_type != RTM_NEWADDR) continue; - if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa))) return -1; - - if (ifa->ifa_index != ifindex || - (filter.family && filter.family != ifa->ifa_family)) + if (ifa->ifa_index != ifindex + || (G_filter.family && G_filter.family != ifa->ifa_family) + ) { continue; - + } print_addrinfo(NULL, n, NULL); } return 0; @@ -401,8 +400,8 @@ static int FAST_FUNC store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr static void ipaddr_reset_filter(int _oneline) { - memset(&filter, 0, sizeof(filter)); - filter.oneline = _oneline; + memset(&G_filter, 0, sizeof(G_filter)); + G_filter.oneline = _oneline; } /* Return value becomes exitcode. It's okay to not return at all */ @@ -418,16 +417,16 @@ int ipaddr_list_or_flush(char **argv, int flush) int no_link = 0; ipaddr_reset_filter(oneline); - filter.showqueue = 1; + G_filter.showqueue = 1; - if (filter.family == AF_UNSPEC) - filter.family = preferred_family; + if (G_filter.family == AF_UNSPEC) + G_filter.family = preferred_family; if (flush) { if (!*argv) { bb_error_msg_and_die(bb_msg_requires_arg, "flush"); } - if (filter.family == AF_PACKET) { + if (G_filter.family == AF_PACKET) { bb_error_msg_and_die("can't flush link addresses"); } } @@ -437,32 +436,31 @@ int ipaddr_list_or_flush(char **argv, int flush) switch (option_num) { case 0: /* to */ NEXT_ARG(); - get_prefix(&filter.pfx, *argv, filter.family); - if (filter.family == AF_UNSPEC) { - filter.family = filter.pfx.family; + get_prefix(&G_filter.pfx, *argv, G_filter.family); + if (G_filter.family == AF_UNSPEC) { + G_filter.family = G_filter.pfx.family; } break; - case 1: /* scope */ - { + case 1: { /* scope */ uint32_t scope = 0; NEXT_ARG(); - filter.scopemask = -1; + G_filter.scopemask = -1; if (rtnl_rtscope_a2n(&scope, *argv)) { if (strcmp(*argv, "all") != 0) { invarg(*argv, "scope"); } scope = RT_SCOPE_NOWHERE; - filter.scopemask = 0; + G_filter.scopemask = 0; } - filter.scope = scope; + G_filter.scope = scope; break; } case 2: /* up */ - filter.up = 1; + G_filter.up = 1; break; case 3: /* label */ NEXT_ARG(); - filter.label = *argv; + G_filter.label = *argv; break; case 4: /* dev */ NEXT_ARG(); @@ -481,40 +479,41 @@ int ipaddr_list_or_flush(char **argv, int flush) xrtnl_dump_filter(&rth, store_nlmsg, &linfo); if (filter_dev) { - filter.ifindex = xll_name_to_index(filter_dev); + G_filter.ifindex = xll_name_to_index(filter_dev); } if (flush) { char flushb[4096-512]; - filter.flushb = flushb; - filter.flushp = 0; - filter.flushe = sizeof(flushb); - filter.rth = &rth; + G_filter.flushb = flushb; + G_filter.flushp = 0; + G_filter.flushe = sizeof(flushb); + G_filter.rth = &rth; for (;;) { - xrtnl_wilddump_request(&rth, filter.family, RTM_GETADDR); - filter.flushed = 0; + xrtnl_wilddump_request(&rth, G_filter.family, RTM_GETADDR); + G_filter.flushed = 0; xrtnl_dump_filter(&rth, print_addrinfo, NULL); - if (filter.flushed == 0) { + if (G_filter.flushed == 0) { return 0; } - if (flush_update() < 0) + if (flush_update() < 0) { return 1; + } } } - if (filter.family != AF_PACKET) { - xrtnl_wilddump_request(&rth, filter.family, RTM_GETADDR); + if (G_filter.family != AF_PACKET) { + xrtnl_wilddump_request(&rth, G_filter.family, RTM_GETADDR); xrtnl_dump_filter(&rth, store_nlmsg, &ainfo); } - if (filter.family && filter.family != AF_PACKET) { + if (G_filter.family && G_filter.family != AF_PACKET) { struct nlmsg_list **lp; lp = &linfo; - if (filter.oneline) + if (G_filter.oneline) no_link = 1; while ((l = *lp) != NULL) { @@ -526,36 +525,38 @@ int ipaddr_list_or_flush(char **argv, int flush) struct nlmsghdr *n = &a->h; struct ifaddrmsg *ifa = NLMSG_DATA(n); - if (ifa->ifa_index != ifi->ifi_index || - (filter.family && filter.family != ifa->ifa_family)) + if (ifa->ifa_index != ifi->ifi_index + || (G_filter.family && G_filter.family != ifa->ifa_family) + ) { continue; - if ((filter.scope ^ ifa->ifa_scope) & filter.scopemask) + } + if ((G_filter.scope ^ ifa->ifa_scope) & G_filter.scopemask) continue; - if ((filter.flags ^ ifa->ifa_flags) & filter.flagmask) + if ((G_filter.flags ^ ifa->ifa_flags) & G_filter.flagmask) continue; - if (filter.pfx.family || filter.label) { + if (G_filter.pfx.family || G_filter.label) { struct rtattr *tb[IFA_MAX+1]; memset(tb, 0, sizeof(tb)); parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n)); if (!tb[IFA_LOCAL]) tb[IFA_LOCAL] = tb[IFA_ADDRESS]; - if (filter.pfx.family && tb[IFA_LOCAL]) { + if (G_filter.pfx.family && tb[IFA_LOCAL]) { inet_prefix dst; memset(&dst, 0, sizeof(dst)); dst.family = ifa->ifa_family; memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL])); - if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen)) + if (inet_addr_match(&dst, &G_filter.pfx, G_filter.pfx.bitlen)) continue; } - if (filter.label) { + if (G_filter.label) { SPRINT_BUF(b1); const char *label; if (tb[IFA_LABEL]) label = RTA_DATA(tb[IFA_LABEL]); else label = ll_idx_n2a(ifa->ifa_index, b1); - if (fnmatch(filter.label, label, 0) != 0) + if (fnmatch(G_filter.label, label, 0) != 0) continue; } } @@ -573,7 +574,7 @@ int ipaddr_list_or_flush(char **argv, int flush) for (l = linfo; l; l = l->next) { if (no_link || print_linkinfo(&l->h) == 0) { struct ifinfomsg *ifi = NLMSG_DATA(&l->h); - if (filter.family != AF_PACKET) + if (G_filter.family != AF_PACKET) print_selected_addrinfo(ifi->ifi_index, ainfo); } } |