#include #include #include #include #include #include #include "sock.h" #include "die.h" #include "str.h" #include "built_in.h" int af_socket(int af) { int sock; if (unlikely(af != AF_INET && af != AF_INET6)) panic("Wrong AF socket type!\n"); sock = socket(af, SOCK_DGRAM, 0); if (unlikely(sock < 0)) panic("Creation AF socket failed!\n"); return sock; } int pf_socket(void) { int sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); if (unlikely(sock < 0)) panic("Creation of PF socket failed!\n"); return sock; } int pf_tx_socket(void) { int sock = socket(PF_PACKET, SOCK_RAW, 0); if (unlikely(sock < 0)) panic("Creation of PF TX socket failed!\n"); return sock; } /* Avail in kernel >= 3.14 * in commit d346a3fae3 (packet: introduce PACKET_QDISC_BYPASS socket option) */ void set_sock_qdisc_bypass(int fd, int verbose) { int ret, val = 1; ret = setsockopt(fd, SOL_PACKET, PACKET_QDISC_BYPASS, &val, sizeof(val)); if (ret < 0) { if (errno == ENOPROTOOPT) { if (verbose) printf("No kernel support for PACKET_QDISC_BYPASS" " (kernel < 3.14?)\n"); } else perror("Cannot set PACKET_QDISC_BYPASS"); } else if (verbose) printf("Enabled kernel qdisc bypass\n"); } void set_sock_prio(int fd, int prio) { int ret, val = prio; ret = setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val)); if (unlikely(ret)) panic("Cannot set socket priority!\n"); } void set_nonblocking(int fd) { int ret = fcntl(fd, F_SETFL, fcntl(fd, F_GETFD, 0) | O_NONBLOCK); if (unlikely(ret < 0)) panic("Cannot fcntl!\n"); } int set_nonblocking_sloppy(int fd) { return fcntl(fd, F_SETFL, fcntl(fd, F_GETFD, 0) | O_NONBLOCK); } void set_socket_keepalive(int fd) { int ret, one = 1; ret = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &one, sizeof(one)); if (unlikely(ret)) panic("Cannot set TCP keepalive!\n"); } void set_tcp_nodelay(int fd) { int ret, one = 1; ret = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &one, sizeof(one)); if (unlikely(ret)) panic("Cannot set TCP nodelay!\n"); } int set_ipv6_only(int fd) { int one = 1; return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &one, sizeof(one)); } int set_reuseaddr(int fd) { int ret, one = 1; ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)); if (unlikely(ret < 0)) panic("Cannot reuse addr!\n"); return 0; } void set_mtu_disc_dont(int fd) { int mtu = IP_PMTUDISC_DONT, ret; ret = setsockopt(fd, SOL_IP, IP_MTU_DISCOVER, &mtu, sizeof(mtu)); if (unlikely(ret)) panic("Cannot set MTU discovery options!\n"); } enum { sock_rmem_max = 0, sock_rmem_def, sock_wmem_max, sock_wmem_def, }; #define SMEM_SUG_MAX 104857600 #define SMEM_SUG_DEF 4194304 static const char *const sock_mem[] = { [sock_rmem_max] = "/proc/sys/net/core/rmem_max", [sock_rmem_def] = "/proc/sys/net/core/rmem_default", [sock_wmem_max] = "/proc/sys/net/core/wmem_max", [sock_wmem_def] = "/proc/sys/net/core/wmem_default", }; static int get_system_socket_mem(int which) { int fd, val = -1; ssize_t ret; const char *file = sock_mem[which]; char buff[64]; fd = open(file, O_RDONLY); if (fd < 0) return val; ret = read(fd, buff, sizeof(buff)); if (ret > 0) val = atoi(buff); close(fd); return val; } static void set_system_socket_mem(int which, int val) { int fd; const char *file = sock_mem[which]; ssize_t ret; char buff[64]; fd = open(file, O_WRONLY); if (fd < 0) return; memset(buff, 0, sizeof(buff)); slprintf(buff, sizeof(buff), "%d", val); ret = write(fd, buff, strlen(buff)); ret = ret; close(fd); } void set_system_socket_memory(int *vals, size_t len) { bug_on(len != 4); if ((vals[0] = get_system_socket_mem(sock_rmem_max)) < SMEM_SUG_MAX) set_system_socket_mem(sock_rmem_max, SMEM_SUG_MAX); if ((vals[1] = get_system_socket_mem(sock_rmem_def)) < SMEM_SUG_DEF) set_system_socket_mem(sock_rmem_def, SMEM_SUG_DEF); if ((vals[2] = get_system_socket_mem(sock_wmem_max)) < SMEM_SUG_MAX) set_system_socket_mem(sock_wmem_max, SMEM_SUG_MAX); if ((vals[3] = get_system_socket_mem(sock_wmem_def)) < SMEM_SUG_DEF) set_system_socket_mem(sock_wmem_def, SMEM_SUG_DEF); } void reset_system_socket_memory(int *vals, size_t len) { bug_on(len != 4); set_system_socket_mem(sock_rmem_max, vals[0]); set_system_socket_mem(sock_rmem_def, vals[1]); set_system_socket_mem(sock_wmem_max, vals[2]); set_system_socket_mem(sock_wmem_def, vals[3]); } a98ad496d6b11a698b258bc64d7f64c55d682'>at91.h751logplain -rw-r--r--ath79-clk.h479logplain -rw-r--r--axis,artpec6-clkctrl.h1112logplain -rw-r--r--bcm-cygnus.h3135logplain -rw-r--r--bcm-ns2.h2915logplain -rw-r--r--bcm-nsp.h2148logplain -rw-r--r--bcm21664.h1984logplain -rw-r--r--bcm281xx.h2456logplain -rw-r--r--bcm2835-aux.h635logplain -rw-r--r--bcm2835.h1962logplain -rw-r--r--berlin2.h1034logplain -rw-r--r--berlin2q.h695logplain -rw-r--r--clps711x-clock.h718logplain -rw-r--r--efm32-cmu.h1112logplain -rw-r--r--exynos-audss-clk.h597logplain -rw-r--r--exynos3250.h9083logplain -rw-r--r--exynos4.h8284logplain -rw-r--r--exynos4415.h9828logplain -rw-r--r--exynos5250.h4616logplain -rw-r--r--exynos5260-clk.h14876logplain -rw-r--r--exynos5410.h1689logplain -rw-r--r--exynos5420.h6857logplain -rw-r--r--exynos5433.h45372logplain -rw-r--r--exynos5440.h1141logplain -rw-r--r--exynos7-clk.h5281logplain -rw-r--r--gxbb-aoclkc.h2866logplain -rw-r--r--gxbb-clkc.h592logplain -rw-r--r--hi3516cv300-clock.h1668logplain -rw-r--r--hi3519-clock.h1328logplain -rw-r--r--hi3620-clock.h4496logplain -rw-r--r--hi6220-clock.h4508logplain -rw-r--r--hip04-clock.h1137logplain -rw-r--r--histb-clock.h2012logplain -rw-r--r--hix5hd2-clock.h2415logplain -rw-r--r--imx1-clock.h1055logplain -rw-r--r--imx21-clock.h2461logplain -rw-r--r--imx27-clock.h3494logplain -rw-r--r--imx5-clock.h7212logplain -rw-r--r--imx6qdl-clock.h9593logplain -rw-r--r--imx6sl-clock.h5849logplain -rw-r--r--imx6sx-clock.h9099logplain -rw-r--r--imx6ul-clock.h8203logplain -rw-r--r--imx7d-clock.h15974logplain -rw-r--r--jz4740-cgu.h1028logplain -rw-r--r--jz4780-cgu.h2470logplain -rw-r--r--lpc18xx-ccu.h2134logplain -rw-r--r--lpc18xx-cgu.h1142logplain -rw-r--r--lpc32xx-clock.h1633logplain -rw-r--r--lsi,axm5516-clks.h974logplain -rw-r--r--marvell,mmp2.h2022logplain -rw-r--r--marvell,pxa168.h1654logplain -rw-r--r--marvell,pxa1928.h1535logplain -rw-r--r--marvell,pxa910.h1598logplain -rw-r--r--maxim,max77620.h632logplain -rw-r--r--maxim,max77686.h648logplain -rw-r--r--maxim,max77802.h630logplain -rw-r--r--meson8b-clkc.h523logplain -rw-r--r--microchip,pic32-clock.h1150logplain -rw-r--r--mpc512x-clock.h2236logplain -rw-r--r--mt2701-clk.h13832logplain -rw-r--r--mt8135-clk.h5641logplain -rw-r--r--mt8173-clk.h9293logplain -rw-r--r--oxsemi,ox810se.h1002logplain -rw-r--r--oxsemi,ox820.h1203logplain -rw-r--r--pistachio-clk.h4863logplain -rw-r--r--pxa-clock.h1715logplain -rw-r--r--qcom,gcc-apq8084.h12872logplain -rw-r--r--qcom,gcc-ipq4019.h5423logplain -rw-r--r--qcom,gcc-ipq806x.h8574logplain -rw-r--r--qcom,gcc-mdm9615.h9497logplain -rw-r--r--qcom,gcc-msm8660.h7932logplain -rw-r--r--qcom,gcc-msm8916.h6190logplain -rw-r--r--qcom,gcc-msm8960.h9342logplain -rw-r--r--qcom,gcc-msm8974.h12340logplain -rw-r--r--qcom,gcc-msm8994.h4858logplain -rw-r--r--qcom,gcc-msm8996.h12575logplain -rw-r--r--qcom,lcc-ipq806x.h899logplain -rw-r--r--qcom,lcc-mdm9615.h1701logplain -rw-r--r--qcom,lcc-msm8960.h1616logplain -rw-r--r--qcom,mmcc-apq8084.h5722logplain -rw-r--r--qcom,mmcc-msm8960.h4109logplain -rw-r--r--qcom,mmcc-msm8974.h5223logplain -rw-r--r--qcom,mmcc-msm8996.h9403logplain -rw-r--r--qcom,rpmcc.h2101logplain -rw-r--r--r7s72100-clock.h1218logplain -rw-r--r--r8a73a4-clock.h1596logplain -rw-r--r--r8a7740-clock.h1992logplain -rw-r--r--r8a7743-cpg-mssr.h1269logplain -rw-r--r--r8a7745-cpg-mssr.h1298logplain -rw-r--r--r8a7778-clock.h1855logplain -rw-r--r--r8a7779-clock.h1647logplain -rw-r--r--r8a7790-clock.h4367logplain -rw-r--r--r8a7791-clock.h4388logplain -rw-r--r--r8a7792-clock.h2562logplain -rw-r--r--r8a7793-clock.h4561logplain -rw-r--r--r8a7794-clock.h3679logplain -rw-r--r--r8a7795-cpg-mssr.h1890logplain -rw-r--r--r8a7796-cpg-mssr.h2066logplain -rw-r--r--renesas-cpg-mssr.h542logplain -rw-r--r--rk1108-cru.h6605logplain -rw-r--r--rk3036-cru.h4584logplain -rw-r--r--rk3066a-cru.h1068logplain -rw-r--r--rk3188-cru-common.h6105logplain -rw-r--r--rk3188-cru.h1435logplain