Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>

/*
 * Since the SSL device uses decimal file descriptors to name channels,
 * it is impossible for a user-level file server to stand in for the kernel device.
 * Thus we hard-code #D rather than use /net/ssl.
 */

int
pushssl(int fd, char *alg, char *secin, char *secout, int *cfd)
{
        char buf[8];
        char dname[64];
        int n, data, ctl;

        ctl = open("#D/ssl/clone", ORDWR);
        if(ctl < 0)
                return -1;
        n = read(ctl, buf, sizeof(buf)-1);
        if(n < 0)
                goto error;
        buf[n] = 0;
        sprint(dname, "#D/ssl/%s/data", buf);
        data = open(dname, ORDWR);
        if(data < 0)
                goto error;
        if(fprint(ctl, "fd %d", fd) < 0 ||
           fprint(ctl, "secretin %s", secin) < 0 ||
           fprint(ctl, "secretout %s", secout) < 0 ||
           fprint(ctl, "alg %s", alg) < 0){
                close(data);
                goto error;
        }
        close(fd);
        if(cfd != 0)
                *cfd = ctl;
        else
                close(ctl);
        return data;
error:
        close(ctl);
        return -1;
}