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Viewing changes to src/daemon/priv-linux.c

  • Committer: Package Import Robot
  • Author(s): Vincent Bernat
  • Date: 2014-07-26 10:19:24 UTC
  • mfrom: (1.1.20)
  • Revision ID: package-import@ubuntu.com-20140726101924-v6jtds7xures4txm
Tags: 0.7.10-1
* New upstream version.
   + Update symbols.

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src/daemon/priv-linux.c
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        if ((*fd = socket(PF_PACKET, SOCK_RAW,
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                    htons(ETH_P_ALL))) < 0) {
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                rc = errno;
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                must_write(PRIV_PRIVILEGED, &rc, sizeof(rc));
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                return rc;
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        }
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        fclose(fp);
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        return 0;
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}
 
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int
 
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asroot_iface_promisc_os(const char *name)
 
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{
 
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        int s, rc;
 
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        if ((s = socket(PF_PACKET, SOCK_RAW,
 
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                    htons(ETH_P_ALL))) < 0) {
 
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                rc = errno;
 
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                log_warn("privsep", "unable to open raw socket");
 
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                return rc;
 
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        }
 
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        struct ifreq ifr = {};
 
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        strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
 
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        if (ioctl(s, SIOCGIFFLAGS, &ifr) == -1) {
 
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                rc = errno;
 
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                log_warn("privsep", "unable to get interface flags for %s",
 
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                    name);
 
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                close(s);
 
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                return rc;
 
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        }
 
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        if (ifr.ifr_flags & IFF_PROMISC) {
 
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                close(s);
 
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                return 0;
 
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        }
 
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        ifr.ifr_flags |= IFF_PROMISC;
 
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        if (ioctl(s, SIOCSIFFLAGS, &ifr) == -1) {
 
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                rc = errno;
 
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                log_warn("privsep", "unable to set promisc mode for %s",
 
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                    name);
 
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                close(s);
 
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                return rc;
 
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        }
 
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        log_info("privsep", "promiscuous mode enabled for %s", name);
 
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        close(s);
 
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        return 0;
 
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}