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Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/2410.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/2410.toml | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/2410.toml b/gitlab/issues/target_missing/host_missing/accel_missing/2410.toml deleted file mode 100644 index 7518fc36..00000000 --- a/gitlab/issues/target_missing/host_missing/accel_missing/2410.toml +++ /dev/null @@ -1,100 +0,0 @@ -id = 2410 -title = "linux-user: `Setsockopt` with IP_OPTIONS returns \"Protocol not available\" error" -state = "opened" -created_at = "2024-06-27T08:28:09.122Z" -closed_at = "n/a" -labels = ["kind::Bug", "linux-user"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/2410" -host-os = "Ubuntu 22.04.3 LTS" -host-arch = "x86_64" -qemu-version = "6.2.0" -guest-os = "Ubuntu 22.04.3 LTS" -guest-arch = "RISC-V 64" -description = """It seems that call to `setsockopt(sd, SOL_IP, IP_OPTIONS,_)` behaves differently on RISC-V Qemu than on x64 Linux. -On Linux syscall returns 0, but on Qemu it fails with `Protocol not available`. -According [man](https://man7.org/linux/man-pages/man7/ip.7.html) `IP_OPTIONS` on `SOCK_STREAM` socket "should work".""" -reproduce = """1. Use below toy program `setsockopt.c` and compile it without optimizations like: -``` - gcc -Wall -W -Wextra -std=gnu17 -pedantic setsockopt.c -o setsockopt -``` - -``` -#include <sys/types.h> -#include <sys/socket.h> -#include <arpa/inet.h> -#include <netinet/in.h> -#include <unistd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -int main() { - { - int sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); - if(sd < 0) { - perror("Opening stream socket error"); - exit(1); - } - else - printf("Opening stream socket....OK.\\n"); - - struct sockaddr_in local_address = {AF_INET, htons(1234), {inet_addr("255.255.255.255")}, {0}}; - int err = connect(sd, (struct sockaddr*)&local_address, (socklen_t)16); - - if (err < 0) { - perror("Connect error"); - close(sd); - } - else - printf("Connect...OK.\\n"); - } - { - int sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); - if(sd < 0) { - perror("Opening stream socket error"); - exit(1); - } - else - printf("Opening stream socket....OK.\\n"); - - char option[4] = {0}; - if(setsockopt(sd, SOL_IP, IP_OPTIONS, (char *)option, sizeof(option)) < 0) { - perror("setsockopt error"); - close(sd); - exit(1); - } - else - printf("setsockopt...OK.\\n"); - - struct sockaddr_in local_address = {AF_INET, htons(1234), {inet_addr("255.255.255.255")}, {0}}; - int err = connect(sd, (struct sockaddr*)&local_address, (socklen_t)16); - - if (err < 0) { - perror("Connect error"); - close(sd); - } - else - printf("Connect...OK.\\n"); - } - return 0; -} -``` - - -2. Run program on Qemu and compare output with output from x64 build. In my case it looks like: -``` -root@AMDC4705:~/runtime/connect$ ./setsockopt-x64 -Opening stream socket....OK. -Connect error: Network is unreachable -Opening stream socket....OK. -setsockopt...OK. -Connect error: Network is unreachable - -root@AMDC4705:/runtime/connect# ./setsockopt-riscv -Opening stream socket....OK. -Connect error: Network is unreachable -Opening stream socket....OK. -setsockopt error: Protocol not available -```""" -additional = """In above demo option `value` is quite artificial. However I tried passing many different `option` arguments (with same `SOL_IP` + `IP_OPTIONS` combination) but always ended up with `setsockopt` failure. -From the other hand on x64 it worked fine. Then I realized that appropriate path in Qemu was unimplemented: https://github.com/qemu/qemu/blob/master/linux-user/syscall.c#L2141""" |