1 | #if HAVE_CONFIG_H |
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2 | #include "config.h" |
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3 | #endif |
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4 | |
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5 | #include <string.h> |
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6 | #include <stdarg.h> |
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7 | /* #include <stdlib.h> */ |
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8 | #include <stdio.h> |
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9 | #include <errno.h> |
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10 | |
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11 | #include <rtems.h> |
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12 | #include <rtems/libio_.h> |
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13 | #include <rtems/error.h> |
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14 | #include <rtems/rtems_bsdnet.h> |
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15 | |
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16 | #include <errno.h> |
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17 | #include <sys/types.h> |
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18 | #include <sys/param.h> |
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19 | #include <sys/mbuf.h> |
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20 | #include <sys/socket.h> |
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21 | #include <sys/socketvar.h> |
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22 | #include <sys/protosw.h> |
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23 | #include <sys/proc.h> |
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24 | #include <sys/fcntl.h> |
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25 | #include <sys/filio.h> |
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26 | #include <sys/sysctl.h> |
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27 | |
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28 | #include <net/if.h> |
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29 | #include <net/if_var.h> |
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30 | #include <net/route.h> |
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31 | |
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32 | #include "rtems_syscall.h" |
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33 | |
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34 | /* |
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35 | * Hooks to RTEMS I/O system |
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36 | */ |
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37 | static const rtems_filesystem_file_handlers_r socket_handlers; |
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38 | |
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39 | /* |
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40 | * Convert an RTEMS file descriptor to a BSD socket pointer. |
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41 | */ |
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42 | struct socket * |
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43 | rtems_bsdnet_fdToSocket (int fd) |
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44 | { |
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45 | rtems_libio_t *iop; |
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46 | |
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47 | /* same as rtems_libio_check_fd(_fd) but different return */ |
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48 | if ((uint32_t)fd >= rtems_libio_number_iops) { |
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49 | errno = EBADF; |
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50 | return NULL; |
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51 | } |
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52 | iop = rtems_libio_iop(fd); |
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53 | |
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54 | /* same as rtems_libio_check_is_open(iop) but different return */ |
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55 | if ((iop->flags & LIBIO_FLAGS_OPEN) == 0) { |
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56 | errno = EBADF; |
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57 | return NULL; |
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58 | } |
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59 | |
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60 | if (iop->pathinfo.handlers != &socket_handlers) { |
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61 | errno = ENOTSOCK; |
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62 | return NULL; |
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63 | } |
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64 | |
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65 | if (iop->data1 == NULL) |
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66 | errno = EBADF; |
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67 | return iop->data1; |
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68 | } |
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69 | |
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70 | /* |
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71 | * Create an RTEMS file descriptor for a socket |
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72 | */ |
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73 | static int |
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74 | rtems_bsdnet_makeFdForSocket (void *so) |
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75 | { |
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76 | rtems_libio_t *iop; |
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77 | int fd; |
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78 | |
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79 | iop = rtems_libio_allocate(); |
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80 | if (iop == 0) |
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81 | rtems_set_errno_and_return_minus_one( ENFILE ); |
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82 | |
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83 | fd = rtems_libio_iop_to_descriptor(iop); |
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84 | iop->flags |= LIBIO_FLAGS_WRITE | LIBIO_FLAGS_READ; |
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85 | iop->data0 = fd; |
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86 | iop->data1 = so; |
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87 | iop->pathinfo.handlers = &socket_handlers; |
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88 | iop->pathinfo.mt_entry = &rtems_filesystem_null_mt_entry; |
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89 | rtems_filesystem_location_add_to_mt_entry(&iop->pathinfo); |
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90 | return fd; |
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91 | } |
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92 | |
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93 | /* |
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94 | * Package system call argument into mbuf. |
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95 | */ |
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96 | static int |
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97 | sockargstombuf (struct mbuf **mp, const void *buf, int buflen, int type) |
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98 | { |
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99 | struct mbuf *m; |
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100 | |
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101 | if ((u_int)buflen > MLEN) |
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102 | return (EINVAL); |
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103 | m = m_get(M_WAIT, type); |
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104 | if (m == NULL) |
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105 | return (ENOBUFS); |
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106 | m->m_len = buflen; |
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107 | memcpy (mtod(m, caddr_t), buf, buflen); |
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108 | *mp = m; |
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109 | if (type == MT_SONAME) { |
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110 | struct sockaddr *sa; |
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111 | sa = mtod(m, struct sockaddr *); |
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112 | sa->sa_len = buflen; |
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113 | } |
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114 | return 0; |
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115 | } |
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116 | |
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117 | /* |
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118 | ********************************************************************* |
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119 | * BSD-style entry points * |
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120 | ********************************************************************* |
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121 | */ |
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122 | int |
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123 | socket (int domain, int type, int protocol) |
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124 | { |
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125 | int fd; |
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126 | int error; |
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127 | struct socket *so; |
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128 | |
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129 | rtems_bsdnet_semaphore_obtain (); |
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130 | error = socreate(domain, &so, type, protocol, NULL); |
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131 | if (error == 0) { |
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132 | fd = rtems_bsdnet_makeFdForSocket (so); |
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133 | if (fd < 0) |
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134 | soclose (so); |
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135 | } |
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136 | else { |
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137 | errno = error; |
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138 | fd = -1; |
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139 | } |
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140 | rtems_bsdnet_semaphore_release (); |
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141 | return fd; |
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142 | } |
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143 | |
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144 | int |
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145 | bind (int s, const struct sockaddr *name, socklen_t namelen) |
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146 | { |
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147 | int error; |
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148 | int ret = -1; |
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149 | struct socket *so; |
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150 | struct mbuf *nam; |
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151 | |
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152 | rtems_bsdnet_semaphore_obtain (); |
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153 | if ((so = rtems_bsdnet_fdToSocket (s)) != NULL) { |
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154 | error = sockargstombuf (&nam, name, namelen, MT_SONAME); |
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155 | if (error == 0) { |
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156 | error = sobind (so, nam); |
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157 | if (error == 0) |
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158 | ret = 0; |
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159 | else |
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160 | errno = error; |
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161 | m_freem (nam); |
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162 | } |
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163 | else { |
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164 | errno = error; |
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165 | } |
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166 | } |
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167 | rtems_bsdnet_semaphore_release (); |
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168 | return ret; |
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169 | } |
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170 | |
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171 | int |
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172 | connect (int s, const struct sockaddr *name, socklen_t namelen) |
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173 | { |
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174 | int error; |
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175 | int ret = -1; |
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176 | struct socket *so; |
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177 | struct mbuf *nam; |
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178 | |
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179 | rtems_bsdnet_semaphore_obtain (); |
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180 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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181 | rtems_bsdnet_semaphore_release (); |
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182 | return -1; |
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183 | } |
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184 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { |
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185 | errno = EALREADY; |
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186 | rtems_bsdnet_semaphore_release (); |
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187 | return -1; |
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188 | } |
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189 | error = sockargstombuf (&nam, name, namelen, MT_SONAME); |
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190 | if (error) { |
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191 | errno = error; |
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192 | rtems_bsdnet_semaphore_release (); |
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193 | return -1; |
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194 | } |
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195 | error = soconnect (so, nam); |
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196 | if (error) |
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197 | goto bad; |
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198 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { |
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199 | m_freem(nam); |
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200 | errno = EINPROGRESS; |
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201 | rtems_bsdnet_semaphore_release (); |
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202 | return -1; |
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203 | } |
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204 | error = so->so_error; |
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205 | while (error == 0 && (so->so_state & SS_ISCONNECTING)) { |
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206 | error = soconnsleep (so); |
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207 | if (error) |
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208 | break; |
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209 | error = so->so_error; |
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210 | so->so_error = 0; |
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211 | } |
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212 | bad: |
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213 | if (error != ENXIO) |
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214 | so->so_state &= ~SS_ISCONNECTING; |
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215 | m_freem (nam); |
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216 | if (error) |
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217 | errno = error; |
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218 | else |
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219 | ret = 0; |
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220 | rtems_bsdnet_semaphore_release (); |
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221 | return ret; |
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222 | } |
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223 | |
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224 | int |
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225 | listen (int s, int backlog) |
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226 | { |
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227 | int error; |
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228 | int ret = -1; |
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229 | struct socket *so; |
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230 | |
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231 | rtems_bsdnet_semaphore_obtain (); |
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232 | if ((so = rtems_bsdnet_fdToSocket (s)) != NULL) { |
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233 | error = solisten (so, backlog); |
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234 | if (error == 0) |
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235 | ret = 0; |
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236 | else |
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237 | errno = error; |
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238 | } |
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239 | rtems_bsdnet_semaphore_release (); |
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240 | return ret; |
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241 | } |
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242 | |
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243 | int |
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244 | accept (int s, struct sockaddr *name, socklen_t *namelen) |
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245 | { |
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246 | int fd; |
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247 | struct socket *head, *so; |
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248 | struct mbuf *nam; |
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249 | int error; |
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250 | |
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251 | rtems_bsdnet_semaphore_obtain (); |
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252 | if ((head = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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253 | rtems_bsdnet_semaphore_release (); |
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254 | return -1; |
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255 | } |
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256 | if ((head->so_options & SO_ACCEPTCONN) == 0) { |
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257 | errno = EINVAL; |
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258 | rtems_bsdnet_semaphore_release (); |
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259 | return -1; |
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260 | } |
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261 | if ((head->so_state & SS_NBIO) && head->so_comp.tqh_first == NULL) { |
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262 | errno = EWOULDBLOCK; |
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263 | rtems_bsdnet_semaphore_release (); |
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264 | return -1; |
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265 | } |
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266 | error = head->so_error; |
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267 | while (error == 0 && head->so_comp.tqh_first == NULL) { |
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268 | if (head->so_state & SS_CANTRCVMORE) { |
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269 | error = ECONNABORTED; |
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270 | break; |
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271 | } |
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272 | error = soconnsleep (head); |
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273 | } |
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274 | if (error) { |
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275 | errno = error; |
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276 | rtems_bsdnet_semaphore_release (); |
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277 | return -1; |
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278 | } |
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279 | |
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280 | so = head->so_comp.tqh_first; |
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281 | TAILQ_REMOVE(&head->so_comp, so, so_list); |
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282 | head->so_qlen--; |
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283 | |
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284 | fd = rtems_bsdnet_makeFdForSocket (so); |
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285 | if (fd < 0) { |
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286 | TAILQ_INSERT_HEAD(&head->so_comp, so, so_list); |
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287 | head->so_qlen++; |
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288 | soconnwakeup (head); |
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289 | rtems_bsdnet_semaphore_release (); |
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290 | return -1; |
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291 | } |
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292 | so->so_state &= ~SS_COMP; |
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293 | so->so_head = NULL; |
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294 | |
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295 | nam = m_get(M_WAIT, MT_SONAME); |
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296 | (void) soaccept(so, nam); |
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297 | if (name) { |
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298 | /* check length before it is destroyed */ |
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299 | if (*namelen > nam->m_len) |
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300 | *namelen = nam->m_len; |
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301 | memcpy (name, mtod(nam, caddr_t), *namelen); |
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302 | } |
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303 | m_freem(nam); |
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304 | rtems_bsdnet_semaphore_release (); |
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305 | return (fd); |
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306 | |
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307 | } |
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308 | |
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309 | /* |
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310 | * Shutdown routine |
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311 | */ |
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312 | |
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313 | int |
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314 | shutdown (int s, int how) |
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315 | { |
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316 | struct socket *so; |
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317 | int error; |
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318 | |
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319 | rtems_bsdnet_semaphore_obtain (); |
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320 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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321 | rtems_bsdnet_semaphore_release (); |
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322 | return -1; |
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323 | } |
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324 | error = soshutdown(so, how); |
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325 | rtems_bsdnet_semaphore_release (); |
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326 | if (error) { |
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327 | errno = error; |
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328 | return -1; |
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329 | } |
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330 | return 0; |
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331 | } |
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332 | |
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333 | /* |
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334 | * All `transmit' operations end up calling this routine. |
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335 | */ |
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336 | ssize_t |
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337 | sendmsg (int s, const struct msghdr *mp, int flags) |
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338 | { |
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339 | int ret = -1; |
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340 | int error; |
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341 | struct uio auio; |
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342 | struct iovec *iov; |
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343 | struct socket *so; |
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344 | struct mbuf *to; |
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345 | struct mbuf *control = NULL; |
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346 | int i; |
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347 | int len; |
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348 | |
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349 | rtems_bsdnet_semaphore_obtain (); |
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350 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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351 | rtems_bsdnet_semaphore_release (); |
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352 | return -1; |
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353 | } |
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354 | auio.uio_iov = mp->msg_iov; |
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355 | auio.uio_iovcnt = mp->msg_iovlen; |
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356 | auio.uio_segflg = UIO_USERSPACE; |
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357 | auio.uio_rw = UIO_WRITE; |
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358 | auio.uio_offset = 0; |
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359 | auio.uio_resid = 0; |
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360 | iov = mp->msg_iov; |
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361 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { |
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362 | if ((auio.uio_resid += iov->iov_len) < 0) { |
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363 | errno = EINVAL; |
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364 | rtems_bsdnet_semaphore_release (); |
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365 | return -1; |
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366 | } |
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367 | } |
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368 | if (mp->msg_name) { |
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369 | error = sockargstombuf (&to, mp->msg_name, mp->msg_namelen, MT_SONAME); |
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370 | if (error) { |
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371 | errno = error; |
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372 | rtems_bsdnet_semaphore_release (); |
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373 | return -1; |
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374 | } |
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375 | } |
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376 | else { |
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377 | to = NULL; |
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378 | } |
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379 | if (mp->msg_control) { |
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380 | if (mp->msg_controllen < sizeof (struct cmsghdr)) { |
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381 | errno = EINVAL; |
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382 | if (to) |
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383 | m_freem(to); |
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384 | rtems_bsdnet_semaphore_release (); |
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385 | return -1; |
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386 | } |
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387 | sockargstombuf (&control, mp->msg_control, mp->msg_controllen, MT_CONTROL); |
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388 | } |
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389 | else { |
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390 | control = NULL; |
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391 | } |
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392 | len = auio.uio_resid; |
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393 | error = sosend (so, to, &auio, (struct mbuf *)0, control, flags); |
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394 | if (error) { |
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395 | if (auio.uio_resid != len && (error == EINTR || error == EWOULDBLOCK)) |
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396 | error = 0; |
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397 | } |
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398 | if (error) |
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399 | errno = error; |
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400 | else |
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401 | ret = len - auio.uio_resid; |
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402 | if (to) |
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403 | m_freem(to); |
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404 | rtems_bsdnet_semaphore_release (); |
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405 | return (ret); |
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406 | } |
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407 | |
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408 | /* |
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409 | * Send a message to a host |
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410 | */ |
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411 | ssize_t |
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412 | sendto (int s, const void *buf, size_t buflen, int flags, const struct sockaddr *to, socklen_t tolen) |
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413 | { |
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414 | struct msghdr msg; |
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415 | struct iovec iov; |
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416 | |
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417 | iov.iov_base = (void *)buf; |
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418 | iov.iov_len = buflen; |
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419 | msg.msg_name = (caddr_t)to; |
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420 | msg.msg_namelen = tolen; |
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421 | msg.msg_iov = &iov; |
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422 | msg.msg_iovlen = 1; |
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423 | msg.msg_control = NULL; |
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424 | msg.msg_controllen = 0; |
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425 | return sendmsg (s, &msg, flags); |
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426 | } |
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427 | |
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428 | /* |
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429 | * All `receive' operations end up calling this routine. |
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430 | */ |
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431 | ssize_t |
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432 | recvmsg (int s, struct msghdr *mp, int flags) |
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433 | { |
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434 | int ret = -1; |
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435 | int error; |
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436 | struct uio auio; |
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437 | struct iovec *iov; |
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438 | struct socket *so; |
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439 | struct mbuf *from = NULL, *control = NULL; |
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440 | int i; |
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441 | int len; |
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442 | |
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443 | rtems_bsdnet_semaphore_obtain (); |
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444 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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445 | rtems_bsdnet_semaphore_release (); |
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446 | return -1; |
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447 | } |
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448 | auio.uio_iov = mp->msg_iov; |
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449 | auio.uio_iovcnt = mp->msg_iovlen; |
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450 | auio.uio_segflg = UIO_USERSPACE; |
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451 | auio.uio_rw = UIO_READ; |
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452 | auio.uio_offset = 0; |
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453 | auio.uio_resid = 0; |
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454 | iov = mp->msg_iov; |
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455 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { |
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456 | if ((auio.uio_resid += iov->iov_len) < 0) { |
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457 | errno = EINVAL; |
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458 | rtems_bsdnet_semaphore_release (); |
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459 | return -1; |
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460 | } |
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461 | } |
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462 | len = auio.uio_resid; |
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463 | mp->msg_flags = flags; |
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464 | error = soreceive (so, &from, &auio, (struct mbuf **)NULL, |
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465 | mp->msg_control ? &control : (struct mbuf **)NULL, |
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466 | &mp->msg_flags); |
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467 | if (error) { |
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468 | if (auio.uio_resid != len && (error == EINTR || error == EWOULDBLOCK)) |
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469 | error = 0; |
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470 | } |
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471 | if (error) { |
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472 | errno = error; |
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473 | } |
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474 | else { |
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475 | ret = len - auio.uio_resid; |
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476 | if (mp->msg_name) { |
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477 | len = mp->msg_namelen; |
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478 | if ((len <= 0) || (from == NULL)) { |
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479 | len = 0; |
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480 | } |
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481 | else { |
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482 | if (len > from->m_len) |
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483 | len = from->m_len; |
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484 | memcpy (mp->msg_name, mtod(from, caddr_t), len); |
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485 | } |
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486 | mp->msg_namelen = len; |
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487 | } |
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488 | if (mp->msg_control) { |
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489 | struct mbuf *m; |
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490 | void *ctlbuf; |
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491 | |
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492 | len = mp->msg_controllen; |
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493 | m = control; |
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494 | mp->msg_controllen = 0; |
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495 | ctlbuf = mp->msg_control; |
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496 | |
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497 | while (m && (len > 0)) { |
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498 | unsigned int tocopy; |
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499 | |
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500 | if (len >= m->m_len) |
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501 | tocopy = m->m_len; |
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502 | else { |
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503 | mp->msg_flags |= MSG_CTRUNC; |
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504 | tocopy = len; |
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505 | } |
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506 | memcpy(ctlbuf, mtod(m, caddr_t), tocopy); |
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507 | ctlbuf += tocopy; |
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508 | len -= tocopy; |
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509 | m = m->m_next; |
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510 | } |
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511 | mp->msg_controllen = ctlbuf - mp->msg_control; |
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512 | } |
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513 | } |
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514 | if (from) |
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515 | m_freem (from); |
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516 | if (control) |
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517 | m_freem (control); |
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518 | rtems_bsdnet_semaphore_release (); |
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519 | return (ret); |
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520 | } |
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521 | |
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522 | /* |
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523 | * Receive a message from a host |
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524 | */ |
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525 | ssize_t |
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526 | recvfrom (int s, void *buf, size_t buflen, int flags, struct sockaddr *from, socklen_t *fromlen) |
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527 | { |
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528 | struct msghdr msg; |
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529 | struct iovec iov; |
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530 | int ret; |
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531 | |
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532 | iov.iov_base = buf; |
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533 | iov.iov_len = buflen; |
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534 | msg.msg_name = (caddr_t)from; |
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535 | if (fromlen) |
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536 | msg.msg_namelen = *fromlen; |
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537 | else |
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538 | msg.msg_namelen = 0; |
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539 | msg.msg_iov = &iov; |
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540 | msg.msg_iovlen = 1; |
---|
541 | msg.msg_control = NULL; |
---|
542 | msg.msg_controllen = 0; |
---|
543 | ret = recvmsg (s, &msg, flags); |
---|
544 | if ((from != NULL) && (fromlen != NULL) && (ret >= 0)) |
---|
545 | *fromlen = msg.msg_namelen; |
---|
546 | return ret; |
---|
547 | } |
---|
548 | |
---|
549 | int |
---|
550 | setsockopt (int s, int level, int name, const void *val, socklen_t len) |
---|
551 | { |
---|
552 | struct socket *so; |
---|
553 | struct mbuf *m = NULL; |
---|
554 | int error; |
---|
555 | |
---|
556 | rtems_bsdnet_semaphore_obtain (); |
---|
557 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
---|
558 | rtems_bsdnet_semaphore_release (); |
---|
559 | return -1; |
---|
560 | } |
---|
561 | if (len > MLEN) { |
---|
562 | errno = EINVAL; |
---|
563 | rtems_bsdnet_semaphore_release (); |
---|
564 | return -1; |
---|
565 | } |
---|
566 | if (val) { |
---|
567 | error = sockargstombuf (&m, val, len, MT_SOOPTS); |
---|
568 | if (error) { |
---|
569 | errno = error; |
---|
570 | rtems_bsdnet_semaphore_release (); |
---|
571 | return -1; |
---|
572 | } |
---|
573 | } |
---|
574 | error = sosetopt(so, level, name, m); |
---|
575 | if (error) { |
---|
576 | errno = error; |
---|
577 | rtems_bsdnet_semaphore_release (); |
---|
578 | return -1; |
---|
579 | } |
---|
580 | rtems_bsdnet_semaphore_release (); |
---|
581 | return 0; |
---|
582 | } |
---|
583 | |
---|
584 | int |
---|
585 | getsockopt (int s, int level, int name, void *aval, socklen_t *avalsize) |
---|
586 | { |
---|
587 | struct socket *so; |
---|
588 | struct mbuf *m = NULL, *m0; |
---|
589 | char *val = aval; |
---|
590 | int i, op, valsize; |
---|
591 | int error; |
---|
592 | |
---|
593 | rtems_bsdnet_semaphore_obtain (); |
---|
594 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
---|
595 | rtems_bsdnet_semaphore_release (); |
---|
596 | return -1; |
---|
597 | } |
---|
598 | if (val) |
---|
599 | valsize = *avalsize; |
---|
600 | else |
---|
601 | valsize = 0; |
---|
602 | if (((error = sogetopt(so, level, name, &m)) == 0) && val && valsize && m) { |
---|
603 | op = 0; |
---|
604 | while (m && op < valsize) { |
---|
605 | i = valsize - op; |
---|
606 | if (i > m->m_len) |
---|
607 | i = m->m_len; |
---|
608 | memcpy (val, mtod(m, caddr_t), i); |
---|
609 | op += i; |
---|
610 | val += i; |
---|
611 | m0 = m; |
---|
612 | MFREE (m0, m); |
---|
613 | } |
---|
614 | *avalsize = op; |
---|
615 | } |
---|
616 | if (m != NULL) |
---|
617 | (void) m_free(m); |
---|
618 | if (error) { |
---|
619 | errno = error; |
---|
620 | rtems_bsdnet_semaphore_release (); |
---|
621 | return -1; |
---|
622 | } |
---|
623 | rtems_bsdnet_semaphore_release (); |
---|
624 | return 0; |
---|
625 | } |
---|
626 | |
---|
627 | static int |
---|
628 | getpeersockname (int s, struct sockaddr *name, socklen_t *namelen, int pflag) |
---|
629 | { |
---|
630 | struct socket *so; |
---|
631 | struct mbuf *m; |
---|
632 | int len = *namelen; |
---|
633 | int error; |
---|
634 | |
---|
635 | rtems_bsdnet_semaphore_obtain (); |
---|
636 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
---|
637 | rtems_bsdnet_semaphore_release (); |
---|
638 | return -1; |
---|
639 | } |
---|
640 | m = m_getclr(M_WAIT, MT_SONAME); |
---|
641 | if (m == NULL) { |
---|
642 | errno = ENOBUFS; |
---|
643 | rtems_bsdnet_semaphore_release (); |
---|
644 | return -1; |
---|
645 | } |
---|
646 | if (pflag) |
---|
647 | error = (*so->so_proto->pr_usrreqs->pru_peeraddr)(so, m); |
---|
648 | else |
---|
649 | error = (*so->so_proto->pr_usrreqs->pru_sockaddr)(so, m); |
---|
650 | if (error) { |
---|
651 | m_freem(m); |
---|
652 | errno = error; |
---|
653 | rtems_bsdnet_semaphore_release (); |
---|
654 | return -1; |
---|
655 | } |
---|
656 | if (len > m->m_len) { |
---|
657 | len = m->m_len; |
---|
658 | *namelen = len; |
---|
659 | } |
---|
660 | memcpy (name, mtod(m, caddr_t), len); |
---|
661 | m_freem (m); |
---|
662 | rtems_bsdnet_semaphore_release (); |
---|
663 | return 0; |
---|
664 | } |
---|
665 | |
---|
666 | int |
---|
667 | getpeername (int s, struct sockaddr *name, socklen_t *namelen) |
---|
668 | { |
---|
669 | return getpeersockname (s, name, namelen, 1); |
---|
670 | } |
---|
671 | int |
---|
672 | getsockname (int s, struct sockaddr *name, socklen_t *namelen) |
---|
673 | { |
---|
674 | return getpeersockname (s, name, namelen, 0); |
---|
675 | } |
---|
676 | |
---|
677 | int |
---|
678 | sysctl(const int *name, u_int namelen, void *oldp, |
---|
679 | size_t *oldlenp, const void *newp, size_t newlen) |
---|
680 | { |
---|
681 | int error; |
---|
682 | size_t j; |
---|
683 | |
---|
684 | rtems_bsdnet_semaphore_obtain (); |
---|
685 | error = userland_sysctl (0, name, namelen, oldp, oldlenp, 1, newp, newlen, &j); |
---|
686 | rtems_bsdnet_semaphore_release (); |
---|
687 | |
---|
688 | if (oldlenp) |
---|
689 | *oldlenp = j; |
---|
690 | |
---|
691 | if (error) |
---|
692 | { |
---|
693 | errno = error; |
---|
694 | return -1; |
---|
695 | } |
---|
696 | return 0; |
---|
697 | } |
---|
698 | |
---|
699 | /* |
---|
700 | ************************************************************************ |
---|
701 | * RTEMS I/O HANDLER ROUTINES * |
---|
702 | ************************************************************************ |
---|
703 | */ |
---|
704 | static int |
---|
705 | rtems_bsdnet_close (rtems_libio_t *iop) |
---|
706 | { |
---|
707 | struct socket *so; |
---|
708 | int error; |
---|
709 | |
---|
710 | rtems_bsdnet_semaphore_obtain (); |
---|
711 | if ((so = iop->data1) == NULL) { |
---|
712 | errno = EBADF; |
---|
713 | rtems_bsdnet_semaphore_release (); |
---|
714 | return -1; |
---|
715 | } |
---|
716 | iop->data1 = NULL; |
---|
717 | error = soclose (so); |
---|
718 | rtems_bsdnet_semaphore_release (); |
---|
719 | if (error) { |
---|
720 | errno = error; |
---|
721 | return -1; |
---|
722 | } |
---|
723 | return 0; |
---|
724 | } |
---|
725 | |
---|
726 | static ssize_t |
---|
727 | rtems_bsdnet_read (rtems_libio_t *iop, void *buffer, size_t count) |
---|
728 | { |
---|
729 | return recv (iop->data0, buffer, count, 0); |
---|
730 | } |
---|
731 | |
---|
732 | static ssize_t |
---|
733 | rtems_bsdnet_write (rtems_libio_t *iop, const void *buffer, size_t count) |
---|
734 | { |
---|
735 | return send (iop->data0, buffer, count, 0); |
---|
736 | } |
---|
737 | |
---|
738 | static int |
---|
739 | so_ioctl (rtems_libio_t *iop, struct socket *so, uint32_t command, void *buffer) |
---|
740 | { |
---|
741 | switch (command) { |
---|
742 | case FIONBIO: |
---|
743 | if (*(int *)buffer) { |
---|
744 | iop->flags |= O_NONBLOCK; |
---|
745 | so->so_state |= SS_NBIO; |
---|
746 | } |
---|
747 | else { |
---|
748 | iop->flags &= ~O_NONBLOCK; |
---|
749 | so->so_state &= ~SS_NBIO; |
---|
750 | } |
---|
751 | return 0; |
---|
752 | |
---|
753 | case FIONREAD: |
---|
754 | *(int *)buffer = so->so_rcv.sb_cc; |
---|
755 | return 0; |
---|
756 | } |
---|
757 | |
---|
758 | if (IOCGROUP(command) == 'i') |
---|
759 | return ifioctl (so, command, buffer, NULL); |
---|
760 | if (IOCGROUP(command) == 'r') |
---|
761 | return rtioctl (command, buffer, NULL); |
---|
762 | return (*so->so_proto->pr_usrreqs->pru_control)(so, command, buffer, 0); |
---|
763 | } |
---|
764 | |
---|
765 | static int |
---|
766 | rtems_bsdnet_ioctl (rtems_libio_t *iop, uint32_t command, void *buffer) |
---|
767 | { |
---|
768 | struct socket *so; |
---|
769 | int error; |
---|
770 | |
---|
771 | rtems_bsdnet_semaphore_obtain (); |
---|
772 | if ((so = iop->data1) == NULL) { |
---|
773 | errno = EBADF; |
---|
774 | rtems_bsdnet_semaphore_release (); |
---|
775 | return -1; |
---|
776 | } |
---|
777 | error = so_ioctl (iop, so, command, buffer); |
---|
778 | rtems_bsdnet_semaphore_release (); |
---|
779 | if (error) { |
---|
780 | errno = error; |
---|
781 | return -1; |
---|
782 | } |
---|
783 | return 0; |
---|
784 | } |
---|
785 | |
---|
786 | static int |
---|
787 | rtems_bsdnet_fcntl (rtems_libio_t *iop, int cmd) |
---|
788 | { |
---|
789 | struct socket *so; |
---|
790 | |
---|
791 | if (cmd == F_SETFL) { |
---|
792 | rtems_bsdnet_semaphore_obtain (); |
---|
793 | if ((so = iop->data1) == NULL) { |
---|
794 | rtems_bsdnet_semaphore_release (); |
---|
795 | return EBADF; |
---|
796 | } |
---|
797 | if (iop->flags & LIBIO_FLAGS_NO_DELAY) |
---|
798 | so->so_state |= SS_NBIO; |
---|
799 | else |
---|
800 | so->so_state &= ~SS_NBIO; |
---|
801 | rtems_bsdnet_semaphore_release (); |
---|
802 | } |
---|
803 | return 0; |
---|
804 | } |
---|
805 | |
---|
806 | static int |
---|
807 | rtems_bsdnet_fstat (const rtems_filesystem_location_info_t *loc, struct stat *sp) |
---|
808 | { |
---|
809 | sp->st_mode = S_IFSOCK; |
---|
810 | return 0; |
---|
811 | } |
---|
812 | |
---|
813 | static const rtems_filesystem_file_handlers_r socket_handlers = { |
---|
814 | .open_h = rtems_filesystem_default_open, |
---|
815 | .close_h = rtems_bsdnet_close, |
---|
816 | .read_h = rtems_bsdnet_read, |
---|
817 | .write_h = rtems_bsdnet_write, |
---|
818 | .ioctl_h = rtems_bsdnet_ioctl, |
---|
819 | .lseek_h = rtems_filesystem_default_lseek, |
---|
820 | .fstat_h = rtems_bsdnet_fstat, |
---|
821 | .ftruncate_h = rtems_filesystem_default_ftruncate, |
---|
822 | .fsync_h = rtems_filesystem_default_fsync_or_fdatasync, |
---|
823 | .fdatasync_h = rtems_filesystem_default_fsync_or_fdatasync, |
---|
824 | .fcntl_h = rtems_bsdnet_fcntl, |
---|
825 | .kqfilter_h = rtems_filesystem_default_kqfilter, |
---|
826 | .mmap_h = rtems_filesystem_default_mmap, |
---|
827 | .poll_h = rtems_filesystem_default_poll, |
---|
828 | .readv_h = rtems_filesystem_default_readv, |
---|
829 | .writev_h = rtems_filesystem_default_writev |
---|
830 | }; |
---|