target/linux/generic-2.4/patches/110-netdev_random_core.patch

   1 --- a/Documentation/Configure.help
   2 +++ b/Documentation/Configure.help
   3 @@ -10687,6 +10687,20 @@ CONFIG_TUN
   4
   5    If you don't know what to use this for, you don't need it.
   6
   7 +Allow Net Devices to contribute to /dev/random
   8 +CONFIG_NET_RANDOM
   9 +  If you say Y here, network device interrupts will contribute to the
  10 +  kernel entropy pool. Normally, block devices and some other devices
  11 +  feed the pool. Some systems, such as those that are headless or diskless,
  12 +  need additional entropy sources.  Some people, however, feel that network
  13 +  devices should not contribute to /dev/random because an external attacker
  14 +  could observe incoming packets in an attempt to learn the entropy pool's
  15 +  state.  If you say N, no network device will contribute entropy.
  16 +
  17 +  If you believe there is a chance of your network packets being observed
  18 +  and you doubt the security of the entropy pool's one-way hash, do not
  19 +  enable this.  If unsure, say N.
  20 +
  21  Ethertap network tap (OBSOLETE)
  22  CONFIG_ETHERTAP
  23    If you say Y here (and have said Y to "Kernel/User network link
  24 --- a/drivers/net/Config.in
  25 +++ b/drivers/net/Config.in
  26 @@ -8,6 +8,7 @@ tristate 'Dummy net driver support' CONF
  27  tristate 'Bonding driver support' CONFIG_BONDING
  28  tristate 'EQL (serial line load balancing) support' CONFIG_EQUALIZER
  29  tristate 'Universal TUN/TAP device driver support' CONFIG_TUN
  30 +bool 'Allow Net Devices to contribute to /dev/random' CONFIG_NET_RANDOM
  31  if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
  32     tristate 'Ethertap network tap (OBSOLETE)' CONFIG_ETHERTAP
  33  fi
  34 --- a/include/asm-alpha/signal.h
  35 +++ b/include/asm-alpha/signal.h
  36 @@ -121,8 +121,15 @@ typedef unsigned long sigset_t;
  37  #define SA_PROBE               SA_ONESHOT
  38  #define SA_SAMPLE_RANDOM       SA_RESTART
  39  #define SA_SHIRQ               0x40000000
  40 +
  41 +#ifdef CONFIG_NET_RANDOM
  42 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
  43 +#else
  44 +#define SA_NET_RANDOM  0
  45  #endif
  46
  47 +#endif /* __KERNEL__ */
  48 +
  49  #define SIG_BLOCK          1   /* for blocking signals */
  50  #define SIG_UNBLOCK        2   /* for unblocking signals */
  51  #define SIG_SETMASK        3   /* for setting the signal mask */
  52 --- a/include/asm-arm/signal.h
  53 +++ b/include/asm-arm/signal.h
  54 @@ -125,8 +125,15 @@ typedef unsigned long sigset_t;
  55  #define SA_PROBE               0x80000000
  56  #define SA_SAMPLE_RANDOM       0x10000000
  57  #define SA_SHIRQ               0x04000000
  58 +
  59 +#ifdef CONFIG_NET_RANDOM
  60 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
  61 +#else
  62 +#define SA_NET_RANDOM  0
  63  #endif
  64
  65 +#endif /* __KERNEL__ */
  66 +
  67  #define SIG_BLOCK          0   /* for blocking signals */
  68  #define SIG_UNBLOCK        1   /* for unblocking signals */
  69  #define SIG_SETMASK        2   /* for setting the signal mask */
  70 --- a/include/asm-cris/signal.h
  71 +++ b/include/asm-cris/signal.h
  72 @@ -120,8 +120,15 @@ typedef unsigned long sigset_t;
  73  #define SA_PROBE               SA_ONESHOT
  74  #define SA_SAMPLE_RANDOM       SA_RESTART
  75  #define SA_SHIRQ               0x04000000
  76 +
  77 +#ifdef CONFIG_NET_RANDOM
  78 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
  79 +#else
  80 +#define SA_NET_RANDOM  0
  81  #endif
  82
  83 +#endif /* __KERNEL__ */
  84 +
  85  #define SIG_BLOCK          0   /* for blocking signals */
  86  #define SIG_UNBLOCK        1   /* for unblocking signals */
  87  #define SIG_SETMASK        2   /* for setting the signal mask */
  88 --- a/include/asm-i386/signal.h
  89 +++ b/include/asm-i386/signal.h
  90 @@ -119,8 +119,15 @@ typedef unsigned long sigset_t;
  91  #define SA_PROBE               SA_ONESHOT
  92  #define SA_SAMPLE_RANDOM       SA_RESTART
  93  #define SA_SHIRQ               0x04000000
  94 +
  95 +#ifdef CONFIG_NET_RANDOM
  96 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
  97 +#else
  98 +#define SA_NET_RANDOM  0
  99  #endif
 100
 101 +#endif /* __KERNEL__ */
 102 +
 103  #define SIG_BLOCK          0   /* for blocking signals */
 104  #define SIG_UNBLOCK        1   /* for unblocking signals */
 105  #define SIG_SETMASK        2   /* for setting the signal mask */
 106 --- a/include/asm-ia64/signal.h
 107 +++ b/include/asm-ia64/signal.h
 108 @@ -117,6 +117,12 @@
 109  #define SA_SHIRQ               0x04000000
 110  #define SA_PERCPU_IRQ          0x02000000
 111
 112 +#ifdef CONFIG_NET_RANDOM
 113 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 114 +#else
 115 +#define SA_NET_RANDOM  0
 116 +#endif
 117 +
 118  #endif /* __KERNEL__ */
 119
 120  #define SIG_BLOCK          0   /* for blocking signals */
 121 --- a/include/asm-m68k/signal.h
 122 +++ b/include/asm-m68k/signal.h
 123 @@ -116,8 +116,15 @@ typedef unsigned long sigset_t;
 124  #define SA_PROBE               SA_ONESHOT
 125  #define SA_SAMPLE_RANDOM       SA_RESTART
 126  #define SA_SHIRQ               0x04000000
 127 +
 128 +#ifdef CONFIG_NET_RANDOM
 129 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 130 +#else
 131 +#define SA_NET_RANDOM  0
 132  #endif
 133
 134 +#endif /* __KERNEL__ */
 135 +
 136  #define SIG_BLOCK          0   /* for blocking signals */
 137  #define SIG_UNBLOCK        1   /* for unblocking signals */
 138  #define SIG_SETMASK        2   /* for setting the signal mask */
 139 --- a/include/asm-mips/signal.h
 140 +++ b/include/asm-mips/signal.h
 141 @@ -111,6 +111,12 @@ typedef unsigned long old_sigset_t;                /*
 142  #define SA_SAMPLE_RANDOM       SA_RESTART
 143  #define SA_SHIRQ               0x02000000
 144
 145 +#ifdef CONFIG_NET_RANDOM
 146 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 147 +#else
 148 +#define SA_NET_RANDOM  0
 149 +#endif
 150 +
 151  #endif /* __KERNEL__ */
 152
 153  #define SIG_BLOCK      1       /* for blocking signals */
 154 --- a/include/asm-mips64/signal.h
 155 +++ b/include/asm-mips64/signal.h
 156 @@ -119,6 +119,12 @@ typedef unsigned int old_sigset_t32;
 157  #define SA_SAMPLE_RANDOM       SA_RESTART
 158  #define SA_SHIRQ               0x02000000
 159
 160 +#ifdef CONFIG_NET_RANDOM
 161 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 162 +#else
 163 +#define SA_NET_RANDOM  0
 164 +#endif
 165 +
 166  #endif /* __KERNEL__ */
 167
 168  #define SIG_BLOCK      1       /* for blocking signals */
 169 --- a/include/asm-parisc/signal.h
 170 +++ b/include/asm-parisc/signal.h
 171 @@ -100,6 +100,12 @@
 172  #define SA_SAMPLE_RANDOM       SA_RESTART
 173  #define SA_SHIRQ               0x04000000
 174
 175 +#ifdef CONFIG_NET_RANDOM
 176 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 177 +#else
 178 +#define SA_NET_RANDOM  0
 179 +#endif
 180 +
 181  #endif /* __KERNEL__ */
 182
 183  #define SIG_BLOCK          0   /* for blocking signals */
 184 --- a/include/asm-ppc/signal.h
 185 +++ b/include/asm-ppc/signal.h
 186 @@ -111,6 +111,13 @@ typedef struct {
 187  #define SA_PROBE               SA_ONESHOT
 188  #define SA_SAMPLE_RANDOM       SA_RESTART
 189  #define SA_SHIRQ               0x04000000
 190 +
 191 +#ifdef CONFIG_NET_RANDOM
 192 +#define SA_NET_RANDOM SA_SAMPLE_RANDOM
 193 +#else
 194 +#define SA_NET_RANDOM 0
 195 +#endif
 196 +
 197  #endif /* __KERNEL__ */
 198
 199  #define SIG_BLOCK          0   /* for blocking signals */
 200 --- a/include/asm-s390/signal.h
 201 +++ b/include/asm-s390/signal.h
 202 @@ -129,8 +129,15 @@ typedef unsigned long sigset_t;
 203  #define SA_SHIRQ                0x04000000
 204  #define SA_DOPATHGROUP          0x00100000
 205  #define SA_FORCE                0x00200000
 206 +
 207 +#ifdef CONFIG_NET_RANDOM
 208 +#define SA_NET_RANDOM          SA_SAMPLE_RANDOM
 209 +#else
 210 +#define SA_NET_RANDOM          0
 211  #endif
 212
 213 +#endif /* __KERNEL__ */
 214 +
 215  #define SIG_BLOCK          0    /* for blocking signals */
 216  #define SIG_UNBLOCK        1    /* for unblocking signals */
 217  #define SIG_SETMASK        2    /* for setting the signal mask */
 218 --- a/include/asm-s390x/signal.h
 219 +++ b/include/asm-s390x/signal.h
 220 @@ -129,8 +129,15 @@ typedef unsigned long sigset_t;
 221  #define SA_SHIRQ                0x04000000
 222  #define SA_DOPATHGROUP          0x00100000
 223  #define SA_FORCE                0x00200000
 224 +
 225 +#ifdef CONFIG_NET_RANDOM
 226 +#define SA_NET_RANDOM          SA_SAMPLE_RANDOM
 227 +#else
 228 +#define SA_NET_RANDOM          0
 229  #endif
 230
 231 +#endif /* __KERNEL__ */
 232 +
 233  #define SIG_BLOCK          0    /* for blocking signals */
 234  #define SIG_UNBLOCK        1    /* for unblocking signals */
 235  #define SIG_SETMASK        2    /* for setting the signal mask */
 236 --- a/include/asm-sh/signal.h
 237 +++ b/include/asm-sh/signal.h
 238 @@ -107,8 +107,15 @@ typedef struct {
 239  #define SA_PROBE               SA_ONESHOT
 240  #define SA_SAMPLE_RANDOM       SA_RESTART
 241  #define SA_SHIRQ               0x04000000
 242 +
 243 +#ifdef CONFIG_NET_RANDOM
 244 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 245 +#else
 246 +#define SA_NET_RANDOM  0
 247  #endif
 248
 249 +#endif /* __KERNEL__ */
 250 +
 251  #define SIG_BLOCK          0   /* for blocking signals */
 252  #define SIG_UNBLOCK        1   /* for unblocking signals */
 253  #define SIG_SETMASK        2   /* for setting the signal mask */
 254 --- a/include/asm-sparc/signal.h
 255 +++ b/include/asm-sparc/signal.h
 256 @@ -176,8 +176,15 @@ struct sigstack {
 257  #define SA_PROBE SA_ONESHOT
 258  #define SA_SAMPLE_RANDOM SA_RESTART
 259  #define SA_STATIC_ALLOC                0x80
 260 +
 261 +#ifdef CONFIG_NET_RANDOM
 262 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 263 +#else
 264 +#define SA_NET_RANDOM  0
 265  #endif
 266
 267 +#endif /* __KERNEL__ */
 268 +
 269  /* Type of a signal handler.  */
 270  #ifdef __KERNEL__
 271  typedef void (*__sighandler_t)(int, int, struct sigcontext *, char *);
 272 --- a/include/asm-sparc64/signal.h
 273 +++ b/include/asm-sparc64/signal.h
 274 @@ -192,8 +192,15 @@ struct sigstack {
 275  #define SA_PROBE SA_ONESHOT
 276  #define SA_SAMPLE_RANDOM SA_RESTART
 277  #define SA_STATIC_ALLOC                0x80
 278 +
 279 +#ifdef CONFIG_NET_RANDOM
 280 +#define SA_NET_RANDOM  SA_SAMPLE_RANDOM
 281 +#else
 282 +#define SA_NET_RANDOM  0
 283  #endif
 284
 285 +#endif /* __KERNEL__ */
 286 +
 287  /* Type of a signal handler.  */
 288  #ifdef __KERNEL__
 289  typedef void (*__sighandler_t)(int, struct sigcontext *);