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Implement more socket options. (#858)
* Implement more socket options. Implement IP_FREEBINDC, IPV6_FREEBIND, IPV6_TCLASS, SO_COOKIE, SO_INCOMING_CPU, SO_PROTOCOL, SO_REUSEPORT, SO_REUSEPORT_LB, TCP_CORK, TCP_QUICKACK, TCP_THIN_LINEAR_TIMEOUTS, TCP_CONGESTION, SO_ORIGINAL_DST, and IP6T_SO_ORIGINAL_DST. * More features in QEMU.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| From Dan Gohman <dev@sunfishcode.online> | ||
| Subject: [PATCH] Implement various socket options. | ||
|
|
||
| This implements the `SO_INCOMING_CPU`, `SO_COOKIE`, and `SO_PROTOCOL` | ||
| socket options. | ||
|
|
||
| diff -ur -x roms -x build a/linux-user/generic/sockbits.h b/linux-user/generic/sockbits.h | ||
| --- a/linux-user/generic/sockbits.h | ||
| +++ b/linux-user/generic/sockbits.h | ||
| @@ -60,4 +60,10 @@ | ||
|
|
||
| #define TARGET_SO_PROTOCOL 38 | ||
| #define TARGET_SO_DOMAIN 39 | ||
| +#ifndef TARGET_SO_INCOMING_CPU | ||
| +#define TARGET_SO_INCOMING_CPU 49 | ||
| +#endif | ||
| +#ifndef TARGET_SO_COOKIE | ||
| +#define TARGET_SO_COOKIE 57 | ||
| +#endif | ||
| #endif | ||
| diff -ur -x roms -x build a/linux-user/syscall.c b/linux-user/syscall.c | ||
| --- a/linux-user/syscall.c | ||
| +++ b/linux-user/syscall.c | ||
| @@ -2476,6 +2476,9 @@ | ||
| case TARGET_SO_RCVLOWAT: | ||
| optname = SO_RCVLOWAT; | ||
| break; | ||
| + case TARGET_SO_INCOMING_CPU: | ||
| + optname = SO_INCOMING_CPU; | ||
| + break; | ||
| default: | ||
| goto unimplemented; | ||
| } | ||
| @@ -2534,6 +2537,7 @@ | ||
| { | ||
| abi_long ret; | ||
| int len, val; | ||
| + int64_t val64; | ||
| socklen_t lv; | ||
|
|
||
| switch(level) { | ||
| @@ -2733,6 +2737,27 @@ | ||
| case TARGET_SO_DOMAIN: | ||
| optname = SO_DOMAIN; | ||
| goto int_case; | ||
| + case TARGET_SO_INCOMING_CPU: | ||
| + optname = SO_INCOMING_CPU; | ||
| + goto int_case; | ||
| + case TARGET_SO_COOKIE: | ||
| + optname = SO_COOKIE; | ||
| + if (get_user_u32(len, optlen)) | ||
| + return -TARGET_EFAULT; | ||
| + if (len < 0) | ||
| + return -TARGET_EINVAL; | ||
| + lv = sizeof(val64); | ||
| + ret = get_errno(getsockopt(sockfd, level, optname, &val64, &lv)); | ||
| + if (ret < 0) | ||
| + return ret; | ||
| + if (len > lv) | ||
| + len = lv; | ||
| + assert(len == 8); | ||
| + if (put_user_u64(val64, optval_addr)) | ||
| + return -TARGET_EFAULT; | ||
| + if (put_user_u32(len, optlen)) | ||
| + return -TARGET_EFAULT; | ||
| + break; | ||
| default: | ||
| goto int_case; | ||
| } | ||
| @@ -2756,6 +2781,9 @@ | ||
| case SO_ERROR: | ||
| val = host_to_target_errno(val); | ||
| break; | ||
| + case SO_PROTOCOL: | ||
| + val = host_to_target_errno(val); | ||
| + break; | ||
| } | ||
| if (level == SOL_SOCKET && optname == SO_ERROR) { | ||
| val = host_to_target_errno(val); |
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