1 | /* |
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2 | * $Id$ |
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3 | */ |
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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 | |
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10 | #include <rtems.h> |
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11 | #include <rtems/libio.h> |
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12 | #include <rtems/error.h> |
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13 | #include <rtems/rtems_bsdnet.h> |
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14 | |
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15 | #include <sys/errno.h> |
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16 | #include <sys/types.h> |
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17 | #include <sys/param.h> |
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18 | #include <sys/mbuf.h> |
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19 | #include <sys/socket.h> |
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20 | #include <sys/socketvar.h> |
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21 | #include <sys/protosw.h> |
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22 | #include <sys/proc.h> |
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23 | #include <sys/fcntl.h> |
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24 | #include <sys/filio.h> |
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25 | |
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26 | #include <net/if.h> |
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27 | #include <net/route.h> |
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28 | |
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29 | /* |
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30 | * Hooks to RTEMS I/O system |
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31 | */ |
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32 | static const rtems_filesystem_file_handlers_r socket_handlers; |
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33 | int rtems_bsdnet_makeFdForSocket(void *so, const rtems_filesystem_file_handlers_r *h); |
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34 | struct socket *rtems_bsdnet_fdToSocket(int fd); |
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35 | |
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36 | /* |
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37 | * Package system call argument into mbuf. |
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38 | */ |
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39 | static int |
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40 | sockargstombuf (struct mbuf **mp, const void *buf, int buflen, int type) |
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41 | { |
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42 | struct mbuf *m; |
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43 | |
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44 | if ((u_int)buflen > MLEN) |
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45 | return (EINVAL); |
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46 | m = m_get(M_WAIT, type); |
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47 | if (m == NULL) |
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48 | return (ENOBUFS); |
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49 | m->m_len = buflen; |
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50 | memcpy (mtod(m, caddr_t), buf, buflen); |
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51 | *mp = m; |
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52 | if (type == MT_SONAME) { |
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53 | struct sockaddr *sa; |
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54 | sa = mtod(m, struct sockaddr *); |
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55 | sa->sa_len = buflen; |
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56 | } |
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57 | return 0; |
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58 | } |
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59 | |
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60 | /* |
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61 | ********************************************************************* |
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62 | * BSD-style entry points * |
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63 | ********************************************************************* |
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64 | */ |
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65 | int |
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66 | socket (int domain, int type, int protocol) |
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67 | { |
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68 | int fd; |
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69 | int error; |
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70 | struct socket *so; |
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71 | |
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72 | rtems_bsdnet_semaphore_obtain (); |
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73 | error = socreate(domain, &so, type, protocol, NULL); |
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74 | if (error == 0) { |
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75 | fd = rtems_bsdnet_makeFdForSocket (so, &socket_handlers); |
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76 | if (fd < 0) |
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77 | soclose (so); |
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78 | } |
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79 | else { |
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80 | errno = error; |
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81 | fd = -1; |
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82 | } |
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83 | rtems_bsdnet_semaphore_release (); |
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84 | return fd; |
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85 | } |
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86 | |
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87 | int |
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88 | bind (int s, struct sockaddr *name, int namelen) |
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89 | { |
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90 | int error; |
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91 | int ret = -1; |
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92 | struct socket *so; |
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93 | struct mbuf *nam; |
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94 | |
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95 | rtems_bsdnet_semaphore_obtain (); |
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96 | if ((so = rtems_bsdnet_fdToSocket (s)) != NULL) { |
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97 | error = sockargstombuf (&nam, name, namelen, MT_SONAME); |
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98 | if (error == 0) { |
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99 | error = sobind (so, nam); |
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100 | if (error == 0) |
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101 | ret = 0; |
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102 | else |
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103 | errno = error; |
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104 | m_freem (nam); |
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105 | } |
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106 | else { |
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107 | errno = error; |
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108 | } |
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109 | } |
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110 | rtems_bsdnet_semaphore_release (); |
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111 | return ret; |
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112 | } |
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113 | |
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114 | int |
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115 | connect (int s, struct sockaddr *name, int namelen) |
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116 | { |
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117 | int error; |
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118 | int ret = -1; |
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119 | struct socket *so; |
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120 | struct mbuf *nam; |
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121 | |
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122 | rtems_bsdnet_semaphore_obtain (); |
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123 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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124 | rtems_bsdnet_semaphore_release (); |
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125 | return -1; |
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126 | } |
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127 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { |
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128 | errno = EALREADY; |
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129 | rtems_bsdnet_semaphore_release (); |
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130 | return -1; |
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131 | } |
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132 | error = sockargstombuf (&nam, name, namelen, MT_SONAME); |
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133 | if (error) { |
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134 | errno = error; |
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135 | rtems_bsdnet_semaphore_release (); |
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136 | return -1; |
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137 | } |
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138 | error = soconnect (so, nam); |
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139 | if (error) |
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140 | goto bad; |
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141 | if ((so->so_state & SS_NBIO) && (so->so_state & SS_ISCONNECTING)) { |
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142 | m_freem(nam); |
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143 | errno = EINPROGRESS; |
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144 | rtems_bsdnet_semaphore_release (); |
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145 | return -1; |
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146 | } |
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147 | while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) { |
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148 | error = soconnsleep (so); |
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149 | if (error) |
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150 | break; |
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151 | } |
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152 | if (error == 0) { |
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153 | error = so->so_error; |
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154 | so->so_error = 0; |
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155 | } |
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156 | bad: |
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157 | so->so_state &= ~SS_ISCONNECTING; |
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158 | m_freem (nam); |
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159 | if (error) |
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160 | errno = error; |
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161 | else |
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162 | ret = 0; |
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163 | rtems_bsdnet_semaphore_release (); |
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164 | return ret; |
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165 | } |
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166 | |
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167 | int |
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168 | listen (int s, int backlog) |
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169 | { |
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170 | int error; |
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171 | int ret = -1; |
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172 | struct socket *so; |
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173 | |
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174 | rtems_bsdnet_semaphore_obtain (); |
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175 | if ((so = rtems_bsdnet_fdToSocket (s)) != NULL) { |
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176 | error = solisten (so, backlog); |
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177 | if (error == 0) |
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178 | ret = 0; |
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179 | else |
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180 | errno = error; |
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181 | } |
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182 | rtems_bsdnet_semaphore_release (); |
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183 | return ret; |
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184 | } |
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185 | |
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186 | int |
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187 | accept (int s, struct sockaddr *name, int *namelen) |
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188 | { |
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189 | int fd; |
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190 | struct socket *head, *so; |
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191 | struct mbuf *nam; |
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192 | |
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193 | rtems_bsdnet_semaphore_obtain (); |
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194 | if ((head = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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195 | rtems_bsdnet_semaphore_release (); |
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196 | return -1; |
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197 | } |
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198 | if ((head->so_options & SO_ACCEPTCONN) == 0) { |
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199 | errno = EINVAL; |
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200 | rtems_bsdnet_semaphore_release (); |
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201 | return -1; |
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202 | } |
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203 | if ((head->so_state & SS_NBIO) && head->so_comp.tqh_first == NULL) { |
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204 | errno = EWOULDBLOCK; |
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205 | rtems_bsdnet_semaphore_release (); |
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206 | return -1; |
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207 | } |
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208 | while (head->so_comp.tqh_first == NULL && head->so_error == 0) { |
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209 | if (head->so_state & SS_CANTRCVMORE) { |
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210 | head->so_error = ECONNABORTED; |
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211 | break; |
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212 | } |
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213 | head->so_error = soconnsleep (head); |
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214 | } |
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215 | if (head->so_error) { |
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216 | errno = head->so_error; |
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217 | head->so_error = 0; |
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218 | rtems_bsdnet_semaphore_release (); |
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219 | return -1; |
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220 | } |
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221 | |
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222 | so = head->so_comp.tqh_first; |
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223 | TAILQ_REMOVE(&head->so_comp, so, so_list); |
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224 | head->so_qlen--; |
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225 | |
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226 | fd = rtems_bsdnet_makeFdForSocket (so, &socket_handlers); |
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227 | if (fd < 0) { |
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228 | TAILQ_INSERT_HEAD(&head->so_comp, so, so_list); |
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229 | head->so_qlen++; |
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230 | soconnwakeup (head); |
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231 | rtems_bsdnet_semaphore_release (); |
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232 | return -1; |
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233 | } |
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234 | so->so_state &= ~SS_COMP; |
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235 | so->so_head = NULL; |
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236 | |
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237 | nam = m_get(M_WAIT, MT_SONAME); |
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238 | (void) soaccept(so, nam); |
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239 | if (name) { |
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240 | /* check length before it is destroyed */ |
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241 | if (*namelen > nam->m_len) |
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242 | *namelen = nam->m_len; |
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243 | memcpy (name, mtod(nam, caddr_t), *namelen); |
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244 | } |
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245 | m_freem(nam); |
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246 | rtems_bsdnet_semaphore_release (); |
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247 | return (fd); |
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248 | |
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249 | } |
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250 | |
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251 | /* |
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252 | * Shutdown routine |
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253 | */ |
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254 | |
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255 | int |
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256 | shutdown (int s, int how) |
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257 | { |
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258 | struct socket *so; |
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259 | int error; |
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260 | |
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261 | rtems_bsdnet_semaphore_obtain (); |
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262 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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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 = soshutdown(so, how); |
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267 | rtems_bsdnet_semaphore_release (); |
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268 | if (error) { |
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269 | errno = error; |
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270 | return -1; |
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271 | } |
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272 | return 0; |
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273 | } |
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274 | |
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275 | /* |
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276 | * All `transmit' operations end up calling this routine. |
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277 | */ |
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278 | ssize_t |
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279 | sendmsg (int s, const struct msghdr *mp, int flags) |
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280 | { |
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281 | int ret = -1; |
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282 | int error; |
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283 | struct uio auio; |
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284 | struct iovec *iov; |
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285 | struct socket *so; |
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286 | struct mbuf *to, *control; |
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287 | int i; |
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288 | int len; |
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289 | |
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290 | rtems_bsdnet_semaphore_obtain (); |
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291 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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292 | rtems_bsdnet_semaphore_release (); |
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293 | return -1; |
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294 | } |
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295 | auio.uio_iov = mp->msg_iov; |
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296 | auio.uio_iovcnt = mp->msg_iovlen; |
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297 | auio.uio_segflg = UIO_USERSPACE; |
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298 | auio.uio_rw = UIO_WRITE; |
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299 | auio.uio_offset = 0; |
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300 | auio.uio_resid = 0; |
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301 | iov = mp->msg_iov; |
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302 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { |
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303 | if ((auio.uio_resid += iov->iov_len) < 0) { |
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304 | errno = EINVAL; |
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305 | rtems_bsdnet_semaphore_release (); |
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306 | return -1; |
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307 | } |
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308 | } |
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309 | if (mp->msg_name) { |
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310 | error = sockargstombuf (&to, mp->msg_name, mp->msg_namelen, MT_SONAME); |
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311 | if (error) { |
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312 | errno = error; |
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313 | rtems_bsdnet_semaphore_release (); |
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314 | return -1; |
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315 | } |
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316 | } |
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317 | else { |
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318 | to = NULL; |
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319 | } |
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320 | if (mp->msg_control) { |
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321 | if (mp->msg_controllen < sizeof (struct cmsghdr)) { |
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322 | errno = EINVAL; |
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323 | if (to) |
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324 | m_freem(to); |
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325 | rtems_bsdnet_semaphore_release (); |
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326 | return -1; |
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327 | } |
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328 | sockargstombuf (&control, mp->msg_control, mp->msg_controllen, MT_CONTROL); |
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329 | } |
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330 | else { |
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331 | control = NULL; |
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332 | } |
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333 | len = auio.uio_resid; |
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334 | error = sosend (so, to, &auio, (struct mbuf *)0, control, flags); |
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335 | if (error) { |
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336 | if (auio.uio_resid != len && (error == EINTR || error == EWOULDBLOCK)) |
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337 | error = 0; |
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338 | } |
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339 | if (error) |
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340 | errno = error; |
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341 | else |
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342 | ret = len - auio.uio_resid; |
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343 | if (to) |
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344 | m_freem(to); |
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345 | rtems_bsdnet_semaphore_release (); |
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346 | return (ret); |
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347 | } |
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348 | |
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349 | /* |
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350 | * Send a message to a host |
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351 | */ |
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352 | ssize_t |
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353 | sendto (int s, const void *buf, size_t buflen, int flags, const struct sockaddr *to, int tolen) |
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354 | { |
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355 | struct msghdr msg; |
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356 | struct iovec iov; |
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357 | |
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358 | iov.iov_base = (void *)buf; |
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359 | iov.iov_len = buflen; |
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360 | msg.msg_name = (caddr_t)to; |
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361 | msg.msg_namelen = tolen; |
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362 | msg.msg_iov = &iov; |
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363 | msg.msg_iovlen = 1; |
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364 | msg.msg_control = NULL; |
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365 | msg.msg_controllen = 0; |
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366 | return sendmsg (s, &msg, flags); |
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367 | } |
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368 | |
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369 | /* |
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370 | * Send a message to a connected host |
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371 | */ |
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372 | ssize_t |
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373 | send (int s, const void *buf, size_t buflen, int flags) |
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374 | { |
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375 | return sendto (s, buf, buflen, flags, NULL, 0); |
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376 | } |
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377 | |
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378 | /* |
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379 | * All `receive' operations end up calling this routine. |
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380 | */ |
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381 | ssize_t |
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382 | recvmsg (int s, struct msghdr *mp, int flags) |
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383 | { |
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384 | int ret = -1; |
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385 | int error; |
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386 | struct uio auio; |
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387 | struct iovec *iov; |
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388 | struct socket *so; |
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389 | struct mbuf *from = NULL, *control = NULL; |
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390 | int i; |
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391 | int len; |
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392 | |
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393 | rtems_bsdnet_semaphore_obtain (); |
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394 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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395 | rtems_bsdnet_semaphore_release (); |
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396 | return -1; |
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397 | } |
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398 | auio.uio_iov = mp->msg_iov; |
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399 | auio.uio_iovcnt = mp->msg_iovlen; |
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400 | auio.uio_segflg = UIO_USERSPACE; |
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401 | auio.uio_rw = UIO_READ; |
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402 | auio.uio_offset = 0; |
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403 | auio.uio_resid = 0; |
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404 | iov = mp->msg_iov; |
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405 | for (i = 0; i < mp->msg_iovlen; i++, iov++) { |
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406 | if ((auio.uio_resid += iov->iov_len) < 0) { |
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407 | errno = EINVAL; |
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408 | rtems_bsdnet_semaphore_release (); |
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409 | return -1; |
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410 | } |
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411 | } |
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412 | len = auio.uio_resid; |
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413 | mp->msg_flags = flags; |
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414 | error = soreceive (so, &from, &auio, (struct mbuf **)NULL, |
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415 | mp->msg_control ? &control : (struct mbuf **)NULL, |
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416 | &mp->msg_flags); |
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417 | if (error) { |
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418 | if (auio.uio_resid != len && (error == EINTR || error == EWOULDBLOCK)) |
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419 | error = 0; |
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420 | } |
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421 | if (error) { |
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422 | errno = error; |
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423 | } |
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424 | else { |
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425 | ret = len - auio.uio_resid; |
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426 | if (mp->msg_name) { |
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427 | len = mp->msg_namelen; |
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428 | if ((len <= 0) || (from == NULL)) { |
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429 | len = 0; |
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430 | } |
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431 | else { |
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432 | if (len > from->m_len) |
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433 | len = from->m_len; |
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434 | memcpy (mp->msg_name, mtod(from, caddr_t), len); |
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435 | } |
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436 | mp->msg_namelen = len; |
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437 | } |
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438 | if (mp->msg_control) { |
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439 | struct mbuf *m; |
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440 | caddr_t ctlbuf; |
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441 | |
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442 | len = mp->msg_controllen; |
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443 | m = control; |
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444 | mp->msg_controllen = 0; |
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445 | ctlbuf = (caddr_t) mp->msg_control; |
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446 | |
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447 | while (m && (len > 0)) { |
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448 | unsigned int tocopy; |
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449 | |
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450 | if (len >= m->m_len) |
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451 | tocopy = m->m_len; |
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452 | else { |
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453 | mp->msg_flags |= MSG_CTRUNC; |
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454 | tocopy = len; |
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455 | } |
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456 | memcpy(ctlbuf, mtod(m, caddr_t), tocopy); |
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457 | ctlbuf += tocopy; |
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458 | len -= tocopy; |
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459 | m = m->m_next; |
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460 | } |
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461 | mp->msg_controllen = ctlbuf - mp->msg_control; |
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462 | } |
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463 | } |
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464 | if (from) |
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465 | m_freem (from); |
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466 | if (control) |
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467 | m_freem (control); |
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468 | rtems_bsdnet_semaphore_release (); |
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469 | return (ret); |
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470 | } |
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471 | |
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472 | /* |
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473 | * Receive a message from a host |
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474 | */ |
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475 | ssize_t |
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476 | recvfrom (int s, void *buf, size_t buflen, int flags, const struct sockaddr *from, int *fromlen) |
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477 | { |
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478 | struct msghdr msg; |
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479 | struct iovec iov; |
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480 | int ret; |
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481 | |
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482 | iov.iov_base = buf; |
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483 | iov.iov_len = buflen; |
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484 | msg.msg_name = (caddr_t)from; |
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485 | if (fromlen) |
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486 | msg.msg_namelen = *fromlen; |
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487 | else |
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488 | msg.msg_namelen = 0; |
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489 | msg.msg_iov = &iov; |
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490 | msg.msg_iovlen = 1; |
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491 | msg.msg_control = NULL; |
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492 | msg.msg_controllen = 0; |
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493 | ret = recvmsg (s, &msg, flags); |
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494 | if ((from != NULL) && (fromlen != NULL) && (ret >= 0)) |
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495 | *fromlen = msg.msg_namelen; |
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496 | return ret; |
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497 | } |
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498 | |
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499 | /* |
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500 | * Receive a message from a connected host |
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501 | */ |
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502 | ssize_t |
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503 | recv (int s, void *buf, size_t buflen, int flags) |
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504 | { |
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505 | return recvfrom (s, buf, buflen, flags, NULL, NULL); |
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506 | } |
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507 | |
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508 | int |
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509 | setsockopt (int s, int level, int name, const void *val, int len) |
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510 | { |
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511 | struct socket *so; |
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512 | struct mbuf *m = NULL; |
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513 | int error; |
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514 | |
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515 | rtems_bsdnet_semaphore_obtain (); |
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516 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
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517 | rtems_bsdnet_semaphore_release (); |
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518 | return -1; |
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519 | } |
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520 | if (len > MLEN) { |
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521 | errno = EINVAL; |
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522 | rtems_bsdnet_semaphore_release (); |
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523 | return -1; |
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524 | } |
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525 | if (val) { |
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526 | error = sockargstombuf (&m, val, len, MT_SOOPTS); |
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527 | if (error) { |
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528 | errno = error; |
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529 | rtems_bsdnet_semaphore_release (); |
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530 | return -1; |
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531 | } |
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532 | } |
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533 | error = sosetopt(so, level, name, m); |
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534 | if (error) { |
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535 | errno = error; |
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536 | rtems_bsdnet_semaphore_release (); |
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537 | return -1; |
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538 | } |
---|
539 | rtems_bsdnet_semaphore_release (); |
---|
540 | return 0; |
---|
541 | } |
---|
542 | |
---|
543 | int |
---|
544 | getsockopt (int s, int level, int name, void *aval, int *avalsize) |
---|
545 | { |
---|
546 | struct socket *so; |
---|
547 | struct mbuf *m = NULL, *m0; |
---|
548 | char *val = aval; |
---|
549 | int i, op, valsize; |
---|
550 | int error; |
---|
551 | |
---|
552 | rtems_bsdnet_semaphore_obtain (); |
---|
553 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
---|
554 | rtems_bsdnet_semaphore_release (); |
---|
555 | return -1; |
---|
556 | } |
---|
557 | if (val) |
---|
558 | valsize = *avalsize; |
---|
559 | else |
---|
560 | valsize = 0; |
---|
561 | if (((error = sogetopt(so, level, name, &m)) == 0) && val && valsize && m) { |
---|
562 | op = 0; |
---|
563 | while (m && op < valsize) { |
---|
564 | i = valsize - op; |
---|
565 | if (i > m->m_len) |
---|
566 | i = m->m_len; |
---|
567 | memcpy (val, mtod(m, caddr_t), i); |
---|
568 | op += i; |
---|
569 | val += i; |
---|
570 | m0 = m; |
---|
571 | MFREE (m0, m); |
---|
572 | } |
---|
573 | *avalsize = op; |
---|
574 | } |
---|
575 | if (m != NULL) |
---|
576 | (void) m_free(m); |
---|
577 | if (error) { |
---|
578 | errno = error; |
---|
579 | rtems_bsdnet_semaphore_release (); |
---|
580 | return -1; |
---|
581 | } |
---|
582 | rtems_bsdnet_semaphore_release (); |
---|
583 | return 0; |
---|
584 | } |
---|
585 | |
---|
586 | static int |
---|
587 | getpeersockname (int s, struct sockaddr *name, int *namelen, int pflag) |
---|
588 | { |
---|
589 | struct socket *so; |
---|
590 | struct mbuf *m; |
---|
591 | int len = *namelen; |
---|
592 | int error; |
---|
593 | |
---|
594 | rtems_bsdnet_semaphore_obtain (); |
---|
595 | if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { |
---|
596 | rtems_bsdnet_semaphore_release (); |
---|
597 | return -1; |
---|
598 | } |
---|
599 | m = m_getclr(M_WAIT, MT_SONAME); |
---|
600 | if (m == NULL) { |
---|
601 | errno = ENOBUFS; |
---|
602 | rtems_bsdnet_semaphore_release (); |
---|
603 | return -1; |
---|
604 | } |
---|
605 | if (pflag) |
---|
606 | error = (*so->so_proto->pr_usrreqs->pru_peeraddr)(so, m); |
---|
607 | else |
---|
608 | error = (*so->so_proto->pr_usrreqs->pru_sockaddr)(so, m); |
---|
609 | if (error) { |
---|
610 | m_freem(m); |
---|
611 | errno = error; |
---|
612 | rtems_bsdnet_semaphore_release (); |
---|
613 | return -1; |
---|
614 | } |
---|
615 | if (len > m->m_len) { |
---|
616 | len = m->m_len; |
---|
617 | *namelen = len; |
---|
618 | } |
---|
619 | memcpy (name, mtod(m, caddr_t), len); |
---|
620 | m_freem (m); |
---|
621 | rtems_bsdnet_semaphore_release (); |
---|
622 | return 0; |
---|
623 | } |
---|
624 | |
---|
625 | int |
---|
626 | getpeername (int s, struct sockaddr *name, int *namelen) |
---|
627 | { |
---|
628 | return getpeersockname (s, name, namelen, 1); |
---|
629 | } |
---|
630 | int |
---|
631 | getsockname (int s, struct sockaddr *name, int *namelen) |
---|
632 | { |
---|
633 | return getpeersockname (s, name, namelen, 0); |
---|
634 | } |
---|
635 | |
---|
636 | /* |
---|
637 | ************************************************************************ |
---|
638 | * RTEMS I/O HANDLER ROUTINES * |
---|
639 | ************************************************************************ |
---|
640 | */ |
---|
641 | static int |
---|
642 | rtems_bsdnet_close (rtems_libio_t *iop) |
---|
643 | { |
---|
644 | struct socket *so; |
---|
645 | int error; |
---|
646 | |
---|
647 | rtems_bsdnet_semaphore_obtain (); |
---|
648 | if ((so = iop->data1) == NULL) { |
---|
649 | errno = EBADF; |
---|
650 | rtems_bsdnet_semaphore_release (); |
---|
651 | return -1; |
---|
652 | } |
---|
653 | error = soclose (so); |
---|
654 | rtems_bsdnet_semaphore_release (); |
---|
655 | if (error) { |
---|
656 | errno = error; |
---|
657 | return -1; |
---|
658 | } |
---|
659 | return 0; |
---|
660 | } |
---|
661 | |
---|
662 | static int |
---|
663 | rtems_bsdnet_read (rtems_libio_t *iop, void *buffer, unsigned32 count) |
---|
664 | { |
---|
665 | return recv (iop->data0, buffer, count, 0); |
---|
666 | } |
---|
667 | |
---|
668 | static int |
---|
669 | rtems_bsdnet_write (rtems_libio_t *iop, const void *buffer, unsigned32 count) |
---|
670 | { |
---|
671 | return send (iop->data0, buffer, count, 0); |
---|
672 | } |
---|
673 | |
---|
674 | static int |
---|
675 | so_ioctl (rtems_libio_t *iop, struct socket *so, unsigned32 command, void *buffer) |
---|
676 | { |
---|
677 | switch (command) { |
---|
678 | case FIONBIO: |
---|
679 | if (*(int *)buffer) { |
---|
680 | iop->flags |= O_NONBLOCK; |
---|
681 | so->so_state |= SS_NBIO; |
---|
682 | } |
---|
683 | else { |
---|
684 | iop->flags &= ~O_NONBLOCK; |
---|
685 | so->so_state &= ~SS_NBIO; |
---|
686 | } |
---|
687 | return 0; |
---|
688 | |
---|
689 | case FIONREAD: |
---|
690 | *(int *)buffer = so->so_rcv.sb_cc; |
---|
691 | return 0; |
---|
692 | } |
---|
693 | |
---|
694 | if (IOCGROUP(command) == 'i') |
---|
695 | return ifioctl (so, command, buffer, NULL); |
---|
696 | if (IOCGROUP(command) == 'r') |
---|
697 | return rtioctl (command, buffer, NULL); |
---|
698 | return (*so->so_proto->pr_usrreqs->pru_control)(so, command, buffer, 0); |
---|
699 | } |
---|
700 | |
---|
701 | static int |
---|
702 | rtems_bsdnet_ioctl (rtems_libio_t *iop, unsigned32 command, void *buffer) |
---|
703 | { |
---|
704 | struct socket *so; |
---|
705 | int error; |
---|
706 | |
---|
707 | rtems_bsdnet_semaphore_obtain (); |
---|
708 | if ((so = iop->data1) == NULL) { |
---|
709 | errno = EBADF; |
---|
710 | rtems_bsdnet_semaphore_release (); |
---|
711 | return -1; |
---|
712 | } |
---|
713 | error = so_ioctl (iop, so, command, buffer); |
---|
714 | rtems_bsdnet_semaphore_release (); |
---|
715 | if (error) { |
---|
716 | errno = error; |
---|
717 | return -1; |
---|
718 | } |
---|
719 | return 0; |
---|
720 | } |
---|
721 | |
---|
722 | static int |
---|
723 | rtems_bsdnet_fcntl (int cmd, rtems_libio_t *iop) |
---|
724 | { |
---|
725 | struct socket *so; |
---|
726 | |
---|
727 | if (cmd == F_SETFL) { |
---|
728 | rtems_bsdnet_semaphore_obtain (); |
---|
729 | if ((so = iop->data1) == NULL) { |
---|
730 | rtems_bsdnet_semaphore_release (); |
---|
731 | return EBADF; |
---|
732 | } |
---|
733 | if (iop->flags & LIBIO_FLAGS_NO_DELAY) |
---|
734 | so->so_state |= SS_NBIO; |
---|
735 | else |
---|
736 | so->so_state &= ~SS_NBIO; |
---|
737 | rtems_bsdnet_semaphore_release (); |
---|
738 | } |
---|
739 | return 0; |
---|
740 | } |
---|
741 | |
---|
742 | static int |
---|
743 | rtems_bsdnet_fstat (rtems_filesystem_location_info_t *loc, struct stat *sp) |
---|
744 | { |
---|
745 | sp->st_mode = S_IFSOCK; |
---|
746 | return 0; |
---|
747 | } |
---|
748 | |
---|
749 | static const rtems_filesystem_file_handlers_r socket_handlers = { |
---|
750 | NULL, /* open */ |
---|
751 | rtems_bsdnet_close, /* close */ |
---|
752 | rtems_bsdnet_read, /* read */ |
---|
753 | rtems_bsdnet_write, /* write */ |
---|
754 | rtems_bsdnet_ioctl, /* ioctl */ |
---|
755 | NULL, /* lseek */ |
---|
756 | rtems_bsdnet_fstat, /* fstat */ |
---|
757 | NULL, /* fchmod */ |
---|
758 | NULL, /* ftruncate */ |
---|
759 | NULL, /* fpathconf */ |
---|
760 | NULL, /* fsync */ |
---|
761 | NULL, /* fdatasync */ |
---|
762 | rtems_bsdnet_fcntl, /* fcntl */ |
---|
763 | }; |
---|