test-blobmsg-procd-instance.c

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#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <libgen.h>
 
#include "blobmsg.h"
#include "utils.h"
 
enum {
        INSTANCE_ATTR_COMMAND,
        INSTANCE_ATTR_ENV,
        INSTANCE_ATTR_DATA,
        INSTANCE_ATTR_NETDEV,
        INSTANCE_ATTR_FILE,
        INSTANCE_ATTR_TRIGGER,
        INSTANCE_ATTR_RESPAWN,
        INSTANCE_ATTR_NICE,
        INSTANCE_ATTR_LIMITS,
        INSTANCE_ATTR_WATCH,
        INSTANCE_ATTR_ERROR,
        INSTANCE_ATTR_USER,
        INSTANCE_ATTR_GROUP,
        INSTANCE_ATTR_STDOUT,
        INSTANCE_ATTR_STDERR,
        INSTANCE_ATTR_NO_NEW_PRIVS,
        INSTANCE_ATTR_JAIL,
        INSTANCE_ATTR_TRACE,
        INSTANCE_ATTR_SECCOMP,
        INSTANCE_ATTR_PIDFILE,
        INSTANCE_ATTR_RELOADSIG,
        INSTANCE_ATTR_TERMTIMEOUT,
        INSTANCE_ATTR_FACILITY,
        __INSTANCE_ATTR_MAX
};
 
static const struct blobmsg_policy instance_attr[__INSTANCE_ATTR_MAX] = {
        [INSTANCE_ATTR_COMMAND] = { "command", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_ENV] = { "env", BLOBMSG_TYPE_TABLE },
        [INSTANCE_ATTR_DATA] = { "data", BLOBMSG_TYPE_TABLE },
        [INSTANCE_ATTR_NETDEV] = { "netdev", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_FILE] = { "file", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_RESPAWN] = { "respawn", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_NICE] = { "nice", BLOBMSG_TYPE_INT32 },
        [INSTANCE_ATTR_LIMITS] = { "limits", BLOBMSG_TYPE_TABLE },
        [INSTANCE_ATTR_WATCH] = { "watch", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_ERROR] = { "error", BLOBMSG_TYPE_ARRAY },
        [INSTANCE_ATTR_USER] = { "user", BLOBMSG_TYPE_STRING },
        [INSTANCE_ATTR_GROUP] = { "group", BLOBMSG_TYPE_STRING },
        [INSTANCE_ATTR_STDOUT] = { "stdout", BLOBMSG_TYPE_BOOL },
        [INSTANCE_ATTR_STDERR] = { "stderr", BLOBMSG_TYPE_BOOL },
        [INSTANCE_ATTR_NO_NEW_PRIVS] = { "no_new_privs", BLOBMSG_TYPE_BOOL },
        [INSTANCE_ATTR_JAIL] = { "jail", BLOBMSG_TYPE_TABLE },
        [INSTANCE_ATTR_TRACE] = { "trace", BLOBMSG_TYPE_BOOL },
        [INSTANCE_ATTR_SECCOMP] = { "seccomp", BLOBMSG_TYPE_STRING },
        [INSTANCE_ATTR_PIDFILE] = { "pidfile", BLOBMSG_TYPE_STRING },
        [INSTANCE_ATTR_RELOADSIG] = { "reload_signal", BLOBMSG_TYPE_INT32 },
        [INSTANCE_ATTR_TERMTIMEOUT] = { "term_timeout", BLOBMSG_TYPE_INT32 },
        [INSTANCE_ATTR_FACILITY] = { "facility", BLOBMSG_TYPE_STRING },
};
 
static void test_blobmsg_procd_instance(const char *filename)
{
#define BUF_LEN 2048
        int r = 0;
        size_t len = 0;
        FILE *fd = NULL;
        char *buf = NULL;
        struct blob_attr *tb[__INSTANCE_ATTR_MAX];
        const char *fname = basename((char *) filename);
 
        fd = fopen(filename, "r");
        if (!fd) {
                fprintf(stderr, "unable to open %s\n", fname);
                return;
        }
 
        buf = malloc(BUF_LEN+1);
        if (!buf)
                return;
 
        len = fread(buf, 1, BUF_LEN, fd);
        fclose(fd);
 
        r = blobmsg_parse(instance_attr, __INSTANCE_ATTR_MAX, tb, buf, len);
        if (r)
                goto out;
 
        if (!tb[INSTANCE_ATTR_COMMAND] || !tb[INSTANCE_ATTR_NICE] || !tb[INSTANCE_ATTR_STDERR])
                goto out;
 
        if (!blobmsg_check_attr_list(tb[INSTANCE_ATTR_COMMAND], BLOBMSG_TYPE_STRING))
                goto out;
 
        if (blobmsg_get_u32(tb[INSTANCE_ATTR_NICE]) != 19)
                goto out;
 
        if (!blobmsg_get_bool(tb[INSTANCE_ATTR_STDERR]))
                goto out;
 
        fprintf(stderr, "%s: OK\n", fname);
out:
        free(buf);
}
 
int main(int argc, char *argv[])
{
        if (argc != 2) {
                fprintf(stderr, "Usage: %s <blobmsg.bin>\n", argv[0]);
                return 3;
        }
 
        test_blobmsg_procd_instance(argv[1]);
 
        return 0;
}