Huw Davies : iphlpapi: Add interface enumeration for Android.
Module: wine Branch: master Commit: 21dc848378318519d28a535517fe0997e63f3fe3 URL: http://source.winehq.org/git/wine.git/?a=commit;h=21dc848378318519d28a535517... Author: Huw Davies <huw(a)codeweavers.com> Date: Thu Sep 19 15:39:21 2013 +0100 iphlpapi: Add interface enumeration for Android. --- configure | 3 +- configure.ac | 3 +- dlls/iphlpapi/ifenum.c | 200 +++++++++++++++++++++++++++++++++++++++++++++++- include/config.h.in | 6 ++ 4 files changed, 209 insertions(+), 3 deletions(-) diff --git a/configure b/configure index e6f6971..a2f8e22 100755 --- a/configure +++ b/configure @@ -6235,7 +6235,7 @@ fi done -for ac_header in linux/ipx.h linux/irda.h +for ac_header in linux/ipx.h linux/irda.h linux/rtnetlink.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "#include <sys/types.h> @@ -13405,6 +13405,7 @@ for ac_func in \ getpwuid \ gettimeofday \ getuid \ + if_nameindex \ kqueue \ lstat \ memmove \ diff --git a/configure.ac b/configure.ac index e03928c..b687119 100644 --- a/configure.ac +++ b/configure.ac @@ -606,7 +606,7 @@ AC_CHECK_HEADERS([netinet/tcp_timer.h netinet/udp_var.h netinet/icmp_var.h netin #include <netinet/tcp_timer.h> #endif]) -AC_CHECK_HEADERS([linux/ipx.h linux/irda.h],,, +AC_CHECK_HEADERS([linux/ipx.h linux/irda.h linux/rtnetlink.h],,, [#include <sys/types.h> #ifdef HAVE_ASM_TYPES_H # include <asm/types.h> @@ -2032,6 +2032,7 @@ AC_CHECK_FUNCS(\ getpwuid \ gettimeofday \ getuid \ + if_nameindex \ kqueue \ lstat \ memmove \ diff --git a/dlls/iphlpapi/ifenum.c b/dlls/iphlpapi/ifenum.c index 6ad08a8..03c1b1a 100644 --- a/dlls/iphlpapi/ifenum.c +++ b/dlls/iphlpapi/ifenum.c @@ -79,6 +79,10 @@ #include <ifaddrs.h> #endif +#ifdef HAVE_LINUX_RTNETLINK_H +#include <linux/rtnetlink.h> +#endif + #include "ifenum.h" #include "ws2ipdef.h" @@ -161,7 +165,7 @@ BOOL isIfIndexLoopback(ULONG idx) return ret; } - +#ifdef HAVE_IF_NAMEINDEX DWORD get_interface_indices( BOOL skip_loopback, InterfaceIndexTable **table ) { DWORD count = 0, i; @@ -199,6 +203,200 @@ end: return count; } +#elif defined(HAVE_LINUX_RTNETLINK_H) +static int open_netlink( int *pid ) +{ + int fd = socket( AF_NETLINK, SOCK_RAW, NETLINK_ROUTE ); + struct sockaddr_nl addr; + socklen_t len; + + if (fd < 0) return fd; + + memset( &addr, 0, sizeof(addr) ); + addr.nl_family = AF_NETLINK; + + if (bind( fd, (struct sockaddr *)&addr, sizeof(addr) ) < 0) + goto fail; + + len = sizeof(addr); + if (getsockname( fd, (struct sockaddr *)&addr, &len ) < 0) + goto fail; + + *pid = addr.nl_pid; + return fd; +fail: + close( fd ); + return -1; +} + +static int send_netlink_req( int fd, int pid, int type, int *seq_no ) +{ + static LONG seq; + struct request + { + struct nlmsghdr hdr; + struct rtgenmsg gen; + } req; + struct sockaddr_nl addr; + + req.hdr.nlmsg_len = sizeof(req); + req.hdr.nlmsg_type = type; + req.hdr.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; + req.hdr.nlmsg_pid = pid; + req.hdr.nlmsg_seq = InterlockedIncrement( &seq ); + req.gen.rtgen_family = AF_UNSPEC; + + memset( &addr, 0, sizeof(addr) ); + addr.nl_family = AF_NETLINK; + if (sendto( fd, &req, sizeof(req), 0, (struct sockaddr *)&addr, sizeof(addr) ) != sizeof(req)) + return -1; + *seq_no = req.hdr.nlmsg_seq; + return 0; +} + +struct netlink_reply +{ + struct netlink_reply *next; + int size; + struct nlmsghdr *hdr; +}; + +static void free_netlink_reply( struct netlink_reply *data ) +{ + struct netlink_reply *ptr; + while( data ) + { + ptr = data->next; + HeapFree( GetProcessHeap(), 0, data ); + data = ptr; + } +} + +static int recv_netlink_reply( int fd, int pid, int seq, struct netlink_reply **data ) +{ + int bufsize = getpagesize(); + int left, read, done = 0; + socklen_t sa_len; + struct sockaddr_nl addr; + struct netlink_reply *cur, *last = NULL; + struct nlmsghdr *hdr; + char *buf; + + *data = NULL; + buf = HeapAlloc( GetProcessHeap(), 0, bufsize ); + if (!buf) return -1; + + do + { + left = read = recvfrom( fd, buf, bufsize, 0, (struct sockaddr *)&addr, &sa_len ); + if (read < 0) goto fail; + if (addr.nl_pid != 0) continue; /* not from kernel */ + + for (hdr = (struct nlmsghdr *)buf; NLMSG_OK(hdr, left); hdr = NLMSG_NEXT(hdr, left)) + { + if (hdr->nlmsg_pid != pid || hdr->nlmsg_seq != seq) continue; + if (hdr->nlmsg_type == NLMSG_DONE) + { + done = 1; + break; + } + } + + cur = HeapAlloc( GetProcessHeap(), 0, sizeof(*cur) + read ); + if (!cur) goto fail; + cur->next = NULL; + cur->size = read; + cur->hdr = (struct nlmsghdr *)(cur + 1); + memcpy( cur->hdr, buf, read ); + if (last) last->next = cur; + else *data = cur; + last = cur; + } while (!done); + + HeapFree( GetProcessHeap(), 0, buf ); + return 0; + +fail: + free_netlink_reply( *data ); + HeapFree( GetProcessHeap(), 0, buf ); + return -1; +} + + +static DWORD get_indices_from_reply( struct netlink_reply *reply, int pid, int seq, + BOOL skip_loopback, InterfaceIndexTable *table ) +{ + struct nlmsghdr *hdr; + struct netlink_reply *r; + int count = 0; + + for (r = reply; r; r = r->next) + { + int size = r->size; + for (hdr = r->hdr; NLMSG_OK(hdr, size); hdr = NLMSG_NEXT(hdr, size)) + { + if (hdr->nlmsg_pid != pid || hdr->nlmsg_seq != seq) continue; + if (hdr->nlmsg_type == NLMSG_DONE) break; + + if (hdr->nlmsg_type == RTM_NEWLINK) + { + struct ifinfomsg *info = NLMSG_DATA(hdr); + + if (skip_loopback && (info->ifi_flags & IFF_LOOPBACK)) continue; + if (table) table->indexes[count] = info->ifi_index; + count++; + } + } + } + return count; +} + +DWORD get_interface_indices( BOOL skip_loopback, InterfaceIndexTable **table ) +{ + int fd, pid, seq; + struct netlink_reply *reply = NULL; + DWORD count = 0; + + if (table) *table = NULL; + fd = open_netlink( &pid ); + if (fd < 0) return 0; + + if (send_netlink_req( fd, pid, RTM_GETLINK, &seq ) < 0) + goto end; + + if (recv_netlink_reply( fd, pid, seq, &reply ) < 0) + goto end; + + count = get_indices_from_reply( reply, pid, seq, skip_loopback, NULL ); + + if (table) + { + InterfaceIndexTable *ret = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET(InterfaceIndexTable, indexes[count]) ); + if (!ret) + { + count = 0; + goto end; + } + + ret->numIndexes = count; + get_indices_from_reply( reply, pid, seq, skip_loopback, ret ); + *table = ret; + } + +end: + free_netlink_reply( reply ); + close( fd ); + return count; +} + +#else +DWORD get_interface_indices( BOOL skip_loopback, InterfaceIndexTable **table ) +{ + if (table) *table = NULL; + return 0; +} +#endif + static DWORD getInterfaceBCastAddrByName(const char *name) { DWORD ret = INADDR_ANY; diff --git a/include/config.h.in b/include/config.h.in index 62bee90..1f0bfea 100644 --- a/include/config.h.in +++ b/include/config.h.in @@ -258,6 +258,9 @@ /* Define to 1 if you have the <ifaddrs.h> header file. */ #undef HAVE_IFADDRS_H +/* Define to 1 if you have the `if_nameindex' function. */ +#undef HAVE_IF_NAMEINDEX + /* Define to 1 if you have the <inet/mib2.h> header file. */ #undef HAVE_INET_MIB2_H @@ -432,6 +435,9 @@ /* Define to 1 if you have the <linux/param.h> header file. */ #undef HAVE_LINUX_PARAM_H +/* Define to 1 if you have the <linux/rtnetlink.h> header file. */ +#undef HAVE_LINUX_RTNETLINK_H + /* Define to 1 if you have the <linux/serial.h> header file. */ #undef HAVE_LINUX_SERIAL_H
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Alexandre Julliard