#include #include #include #include #include #include #include #include "dev.h" #include "str.h" #include "sock.h" #include "die.h" #include "link.h" #include "built_in.h" int device_ifindex_get(const char *ifname) { int ret, sock, index; struct ifreq ifr; if (!strncmp("any", ifname, strlen("any"))) return 0; sock = af_socket(AF_INET); memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); ret = ioctl(sock, SIOCGIFINDEX, &ifr); if (ret) index = -1; else index = ifr.ifr_ifindex; close(sock); return index; } int device_ifindex(const char *ifname) { int index = device_ifindex_get(ifname); if (unlikely(index < 0)) panic("Cannot get ifindex from device!\n"); return index; } int device_type(const char *ifname) { int ret, sock, type; struct ifreq ifr; if (!strncmp("any", ifname, strlen("any"))) return ARPHRD_ETHER; sock = af_socket(AF_INET); memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); ret = ioctl(sock, SIOCGIFHWADDR, &ifr); if (unlikely(ret)) panic("Cannot get iftype from device!\n"); /* dev->type */ type = ifr.ifr_hwaddr.sa_family; close(sock); return type; } static int __device_address6(const char *ifname, struct sockaddr_storage *ss) { int ret, family, found = -EINVAL; struct ifaddrs *ifaddr, *ifa; ret = getifaddrs(&ifaddr); if (unlikely(ret < 0)) panic("Cannot get device addresses for IPv6!\n"); for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { family = ifa->ifa_addr->sa_family; if (family != AF_INET6) continue; if (strcmp(ifa->ifa_name, ifname)) continue; memcpy(ss, ifa->ifa_addr, sizeof(*ss)); found = 0; break; } freeifaddrs(ifaddr); return found; } int device_address(const char *ifname, int af, struct sockaddr_storage *ss) { int ret, sock; struct ifreq ifr; if (unlikely(!ss)) return -EINVAL; if (!strncmp("any", ifname, strlen("any"))) return -EINVAL; if (af == AF_INET6) return __device_address6(ifname, ss); sock = af_socket(af); memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); ifr.ifr_addr.sa_family = af; ret = ioctl(sock, SIOCGIFADDR, &ifr); if (likely(!ret)) memcpy(ss, &ifr.ifr_addr, sizeof(ifr.ifr_addr)); close(sock); return ret; } size_t device_mtu(const char *ifname) { size_t mtu = 0; int ret, sock; struct ifreq ifr; sock = af_socket(AF_INET); memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); ret = ioctl(sock, SIOCGIFMTU, &ifr); if (likely(!ret)) mtu = ifr.ifr_mtu; close(sock); return mtu; } short device_get_flags(const char *ifname) { short flags = 0; int ret, sock; struct ifreq ifr; sock = af_socket(AF_INET); memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); ret = ioctl(sock, SIOCGIFFLAGS, &ifr); if (likely(!ret)) flags = ifr.ifr_flags; close(sock); return flags; } void device_set_flags(const char *ifname, const short flags) { int ret, sock; struct ifreq ifr; sock = af_socket(AF_INET); memset(&ifr, 0, sizeof(ifr)); strlcpy(ifr.ifr_name, ifname, IFNAMSIZ); ifr.ifr_flags = flags; ret = ioctl(sock, SIOCSIFFLAGS, &ifr); if (unlikely(ret < 0)) panic("Cannot set NIC flags!\n"); close(sock); } int device_up_and_running(const char *ifname) { if (!ifname) return -EINVAL; if (!strncmp("any", ifname, strlen("any"))) return 1; return (device_get_flags(ifname) & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING); } u32 device_bitrate(const char *ifname) { u32 scopper, swireless; scopper = ethtool_bitrate(ifname); swireless = wireless_bitrate(ifname); return scopper ? : swireless; } short device_enter_promiscuous_mode(const char *ifname) { short ifflags; if (!strncmp("any", ifname, strlen("any"))) return 0; ifflags = device_get_flags(ifname); device_set_flags(ifname, ifflags | IFF_PROMISC); return ifflags; } void device_leave_promiscuous_mode(const char *ifname, short oldflags) { if (!strncmp("any", ifname, strlen("any"))) return; device_set_flags(ifname, oldflags); }
authorJohan Hovold <johan@hovoldconsulting.com>2016-08-03 14:09:32 +0200
committerGreg Kroah-Hartman <gregkh@google.com>2016-08-03 15:42:38 +0200
commit4ae2d962637e4a002d1f0884dceec800c79b3ea4 (patch)
treea193375566df24554a44c4964a1dc1c5d89a7a35
parentc468999e6acd3e8330db7d18dca320f8b21bf074 (diff)
greybus: es2: always set result value
Make sure to always set the result value for ARPC instead of forcing every caller to do it in order to avoid compiler warnings. The ARPC result should still be ignored unless arpc_sync returns -EREMOTEIO. Signed-off-by: Johan Hovold <johan@hovoldconsulting.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat
-rw-r--r--drivers/staging/greybus/es2.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c