Re: [PATCH bpf-next 06/14] selftests/bpf: Use log_err in network_helpers

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On Wed, 2024-04-10 at 15:29 +0800, Geliang Tang wrote:
> From: Geliang Tang <tanggeliang@xxxxxxxxxx>
> 
> The helpers ASSERT_OK/GE/OK_PTR should avoid using in public
> functions.
> This patch uses log_err() to replace them in network_helpers.c.
> 
> And drop '#include "test_progs.h"' in it, include <pthread.h> and
> <sys/param.h> instead.

Sorry, CI complains about this:

  network_helpers.c: In function ‘open_netns’:
  network_helpers.c:466:25: error: implicit declaration of function
‘open’; did you mean ‘popen’? [-Werror=implicit-function-declaration]
    466 |  token->orig_netns_fd = open("/proc/self/ns/net", O_RDONLY);
        |                         ^~~~
        |                         popen

"test_progs.h" is still needed. I'll update this in v2.

Changes Requested.

-Geliang

> 
> Signed-off-by: Geliang Tang <tanggeliang@xxxxxxxxxx>
> ---
>  tools/testing/selftests/bpf/network_helpers.c | 22 ++++++++++++++---
> --
>  1 file changed, 16 insertions(+), 6 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/network_helpers.c
> b/tools/testing/selftests/bpf/network_helpers.c
> index 7ddeb6698ec7..9fd271d5d571 100644
> --- a/tools/testing/selftests/bpf/network_helpers.c
> +++ b/tools/testing/selftests/bpf/network_helpers.c
> @@ -7,11 +7,13 @@
>  #include <string.h>
>  #include <unistd.h>
>  #include <sched.h>
> +#include <pthread.h>
>  
>  #include <arpa/inet.h>
>  #include <sys/mount.h>
>  #include <sys/stat.h>
>  #include <sys/un.h>
> +#include <sys/param.h>
>  
>  #include <linux/err.h>
>  #include <linux/in.h>
> @@ -20,7 +22,6 @@
>  
>  #include "bpf_util.h"
>  #include "network_helpers.h"
> -#include "test_progs.h"
>  
>  #ifndef IPPROTO_MPTCP
>  #define IPPROTO_MPTCP 262
> @@ -447,22 +448,30 @@ struct nstoken *open_netns(const char *name)
>  	struct nstoken *token;
>  
>  	token = calloc(1, sizeof(struct nstoken));
> -	if (!ASSERT_OK_PTR(token, "malloc token"))
> +	if (!token) {
> +		log_err("malloc token");
>  		return NULL;
> +	}
>  
>  	token->orig_netns_fd = open("/proc/self/ns/net", O_RDONLY);
> -	if (!ASSERT_GE(token->orig_netns_fd, 0, "open
> /proc/self/ns/net"))
> +	if (token->orig_netns_fd <= 0) {
> +		log_err("open /proc/self/ns/net");
>  		goto fail;
> +	}
>  
>  	snprintf(nspath, sizeof(nspath), "%s/%s", "/var/run/netns",
> name);
>  	nsfd = open(nspath, O_RDONLY | O_CLOEXEC);
> -	if (!ASSERT_GE(nsfd, 0, "open netns fd"))
> +	if (nsfd <= 0) {
> +		log_err("open netns fd");
>  		goto fail;
> +	}
>  
>  	err = setns(nsfd, CLONE_NEWNET);
>  	close(nsfd);
> -	if (!ASSERT_OK(err, "setns"))
> +	if (err) {
> +		log_err("setns");
>  		goto fail;
> +	}
>  
>  	return token;
>  fail:
> @@ -475,7 +484,8 @@ void close_netns(struct nstoken *token)
>  	if (!token)
>  		return;
>  
> -	ASSERT_OK(setns(token->orig_netns_fd, CLONE_NEWNET),
> "setns");
> +	if (setns(token->orig_netns_fd, CLONE_NEWNET))
> +		log_err("setns");
>  	close(token->orig_netns_fd);
>  	free(token);
>  }






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