Looks good.

Ethan

On Thu, Aug 4, 2011 at 16:29, Ben Pfaff <[email protected]> wrote:
> This will be used in upcoming commits.
> ---
>  lib/odp-util.c     |  307 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  lib/odp-util.h     |    1 +
>  lib/packets.h      |   33 ++++++
>  tests/automake.mk  |    7 ++
>  tests/odp.at       |   40 +++++++
>  tests/test-odp.c   |   85 +++++++++++++++
>  tests/testsuite.at |    1 +
>  7 files changed, 474 insertions(+), 0 deletions(-)
>  create mode 100644 tests/odp.at
>  create mode 100644 tests/test-odp.c
>
> diff --git a/lib/odp-util.c b/lib/odp-util.c
> index 62cb504..d552316 100644
> --- a/lib/odp-util.c
> +++ b/lib/odp-util.c
> @@ -27,6 +27,7 @@
>  #include "dynamic-string.h"
>  #include "flow.h"
>  #include "netlink.h"
> +#include "ofpbuf.h"
>  #include "openvswitch/tunnel.h"
>  #include "packets.h"
>  #include "timeval.h"
> @@ -389,6 +390,312 @@ odp_flow_key_format(const struct nlattr *key, size_t 
> key_len, struct ds *ds)
>     }
>  }
>
> +static int
> +put_nd_key(int n, const char *nd_target_s,
> +           const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
> +{
> +    struct odp_key_nd nd_key;
> +
> +    memset(&nd_key, 0, sizeof nd_key);
> +    if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
> +        return -EINVAL;
> +    }
> +    if (nd_sll) {
> +        memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
> +    }
> +    if (nd_tll) {
> +        memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
> +    }
> +    nl_msg_put_unspec(key, ODP_KEY_ATTR_ND, &nd_key, sizeof nd_key);
> +    return n;
> +}
> +
> +static int
> +parse_odp_key_attr(const char *s, struct ofpbuf *key)
> +{
> +    /* Many of the sscanf calls in this function use oversized destination
> +     * fields because some sscanf() implementations truncate the range of %i
> +     * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
> +     * value of 0x7fff.  The other alternatives are to allow only a single
> +     * radix (e.g. decimal or hexadecimal) or to write more sophisticated
> +     * parsers.
> +     *
> +     * The tun_id parser has to use an alternative approach because there is 
> no
> +     * type larger than 64 bits. */
> +
> +    {
> +        char tun_id_s[32];
> +        int n = -1;
> +
> +        if (sscanf(s, "tun_id(%31[x0123456789abcdefABCDEF])%n",
> +                   tun_id_s, &n) > 0 && n > 0) {
> +            uint64_t tun_id = strtoull(tun_id_s, NULL, 0);
> +            nl_msg_put_be64(key, ODP_KEY_ATTR_TUN_ID, htonll(tun_id));
> +            return n;
> +        }
> +    }
> +
> +    {
> +        unsigned long long int in_port;
> +        int n = -1;
> +
> +        if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
> +            nl_msg_put_u32(key, ODP_KEY_ATTR_IN_PORT, in_port);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        struct odp_key_ethernet eth_key;
> +        int n = -1;
> +
> +        if (sscanf(s,
> +                   "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
> +                   ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
> +                   ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_ETHERNET,
> +                              &eth_key, sizeof eth_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        uint16_t tpid = ETH_TYPE_VLAN;
> +        uint16_t vid;
> +        int pcp;
> +        int n = -1;
> +
> +        if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n",
> +                    &vid, &pcp, &n) > 0 && n > 0) ||
> +            (sscanf(s, "vlan(tpid=%"SCNi16",vid=%"SCNi16",pcp=%i)%n",
> +                    &tpid, &vid, &pcp, &n) > 0 && n > 0)) {
> +            struct odp_key_8021q q_key;
> +
> +            q_key.q_tpid = htons(tpid);
> +            q_key.q_tci = htons((vid << VLAN_VID_SHIFT) |
> +                                (pcp << VLAN_PCP_SHIFT));
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_8021Q, &q_key, sizeof q_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        uint16_t eth_type;
> +        int n = -1;
> +
> +        if (sscanf(s, "eth_type(%"SCNi16")%n", &eth_type, &n) > 0 && n > 0) {
> +            nl_msg_put_be16(key, ODP_KEY_ATTR_ETHERTYPE, htons(eth_type));
> +            return n;
> +        }
> +    }
> +
> +    {
> +        ovs_be32 ipv4_src;
> +        ovs_be32 ipv4_dst;
> +        int ipv4_proto;
> +        int ipv4_tos;
> +        int n = -1;
> +
> +        if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
> +                   "proto=%i,tos=%i)%n",
> +                   IP_SCAN_ARGS(&ipv4_src),
> +                   IP_SCAN_ARGS(&ipv4_dst), &ipv4_proto, &ipv4_tos, &n) > 0
> +            && n > 0) {
> +            struct odp_key_ipv4 ipv4_key;
> +
> +            memset(&ipv4_key, 0, sizeof ipv4_key);
> +            ipv4_key.ipv4_src = ipv4_src;
> +            ipv4_key.ipv4_dst = ipv4_dst;
> +            ipv4_key.ipv4_proto = ipv4_proto;
> +            ipv4_key.ipv4_tos = ipv4_tos;
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_IPV4,
> +                              &ipv4_key, sizeof ipv4_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        char ipv6_src_s[IPV6_SCAN_LEN + 1];
> +        char ipv6_dst_s[IPV6_SCAN_LEN + 1];
> +        int ipv6_proto;
> +        int ipv6_tos;
> +        int n = -1;
> +
> +        if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
> +                   "proto=%i,tos=%i)%n",
> +                   ipv6_src_s, ipv6_dst_s,
> +                   &ipv6_proto, &ipv6_tos, &n) > 0 && n > 0) {
> +            struct odp_key_ipv6 ipv6_key;
> +
> +            memset(&ipv6_key, 0, sizeof ipv6_key);
> +            if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
> +                inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
> +                return -EINVAL;
> +            }
> +            ipv6_key.ipv6_proto = ipv6_proto;
> +            ipv6_key.ipv6_tos = ipv6_tos;
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_IPV6,
> +                              &ipv6_key, sizeof ipv6_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        int tcp_src;
> +        int tcp_dst;
> +        int n = -1;
> +
> +        if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
> +            && n > 0) {
> +            struct odp_key_tcp tcp_key;
> +
> +            tcp_key.tcp_src = htons(tcp_src);
> +            tcp_key.tcp_dst = htons(tcp_dst);
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_TCP, &tcp_key, sizeof 
> tcp_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        int udp_src;
> +        int udp_dst;
> +        int n = -1;
> +
> +        if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
> +            && n > 0) {
> +            struct odp_key_udp udp_key;
> +
> +            udp_key.udp_src = htons(udp_src);
> +            udp_key.udp_dst = htons(udp_dst);
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_UDP, &udp_key, sizeof 
> udp_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        int icmp_type;
> +        int icmp_code;
> +        int n = -1;
> +
> +        if (sscanf(s, "icmp(type=%i,code=%i)%n",
> +                   &icmp_type, &icmp_code, &n) > 0
> +            && n > 0) {
> +            struct odp_key_icmp icmp_key;
> +
> +            icmp_key.icmp_type = icmp_type;
> +            icmp_key.icmp_code = icmp_code;
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_ICMP,
> +                              &icmp_key, sizeof icmp_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        struct odp_key_icmpv6 icmpv6_key;
> +        int n = -1;
> +
> +        if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
> +                   &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
> +            && n > 0) {
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_ICMPV6,
> +                              &icmpv6_key, sizeof icmpv6_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        ovs_be32 arp_sip;
> +        ovs_be32 arp_tip;
> +        int arp_op;
> +        uint8_t arp_sha[ETH_ADDR_LEN];
> +        uint8_t arp_tha[ETH_ADDR_LEN];
> +        int n = -1;
> +
> +        if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
> +                   
> "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
> +                   IP_SCAN_ARGS(&arp_sip),
> +                   IP_SCAN_ARGS(&arp_tip),
> +                   &arp_op,
> +                   ETH_ADDR_SCAN_ARGS(arp_sha),
> +                   ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
> +            struct odp_key_arp arp_key;
> +
> +            memset(&arp_key, 0, sizeof arp_key);
> +            arp_key.arp_sip = arp_sip;
> +            arp_key.arp_tip = arp_tip;
> +            arp_key.arp_op = htons(arp_op);
> +            memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
> +            memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
> +            nl_msg_put_unspec(key, ODP_KEY_ATTR_ARP, &arp_key, sizeof 
> arp_key);
> +            return n;
> +        }
> +    }
> +
> +    {
> +        char nd_target_s[IPV6_SCAN_LEN + 1];
> +        uint8_t nd_sll[ETH_ADDR_LEN];
> +        uint8_t nd_tll[ETH_ADDR_LEN];
> +        int n = -1;
> +
> +        if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
> +                   nd_target_s, &n) > 0 && n > 0) {
> +            return put_nd_key(n, nd_target_s, NULL, NULL, key);
> +        }
> +        if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
> +                   nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
> +            && n > 0) {
> +            return put_nd_key(n, nd_target_s, nd_sll, NULL, key);
> +        }
> +        if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
> +                   nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
> +            && n > 0) {
> +            return put_nd_key(n, nd_target_s, NULL, nd_tll, key);
> +        }
> +        if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
> +                   "tll="ETH_ADDR_SCAN_FMT")%n",
> +                   nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
> +                   ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
> +            && n > 0) {
> +            return put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
> +        }
> +    }
> +
> +    return -EINVAL;
> +}
> +
> +/* Parses the string representation of an ODP flow key, in the format output 
> by
> + * odp_flow_key_format().  Returns 0 if successful, otherwise a positive 
> errno
> + * value.  On success, the flow key is appended to 'key' as a series of 
> Netlink
> + * attributes.  On failure, no data is appended to 'key'.  Either way, 
> 'key''s
> + * data might be reallocated.
> + *
> + * On success, the attributes appended to 'key' are individually 
> syntactically
> + * valid, but they may not be valid as a sequence.  'key' might, for example,
> + * be missing an "in_port" key, have duplicated keys, or have keys in the 
> wrong
> + * order.  odp_flow_key_to_flow() will detect those errors. */
> +int
> +odp_flow_key_from_string(const char *s, struct ofpbuf *key)
> +{
> +    const size_t old_size = key->size;
> +    for (;;) {
> +        int retval;
> +
> +        s += strspn(s, ", \t\r\n");
> +        if (!*s) {
> +            return 0;
> +        }
> +
> +        retval = parse_odp_key_attr(s, key);
> +        if (retval < 0) {
> +            key->size = old_size;
> +            return -retval;
> +        }
> +        s += retval;
> +    }
> +
> +    return 0;
> +}
> +
>  /* Appends a representation of 'flow' as ODP_KEY_ATTR_* attributes to 'buf'. 
> */
>  void
>  odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow)
> diff --git a/lib/odp-util.h b/lib/odp-util.h
> index a88c7ee..dd320ac 100644
> --- a/lib/odp-util.h
> +++ b/lib/odp-util.h
> @@ -94,6 +94,7 @@ struct odputil_keybuf {
>  };
>
>  void odp_flow_key_format(const struct nlattr *, size_t, struct ds *);
> +int odp_flow_key_from_string(const char *s, struct ofpbuf *);
>
>  void odp_flow_key_from_flow(struct ofpbuf *, const struct flow *);
>  int odp_flow_key_to_flow(const struct nlattr *, size_t, struct flow *);
> diff --git a/lib/packets.h b/lib/packets.h
> index 8e13a25..a389e6a 100644
> --- a/lib/packets.h
> +++ b/lib/packets.h
> @@ -264,6 +264,25 @@ BUILD_ASSERT_DECL(VLAN_ETH_HEADER_LEN == sizeof(struct 
> vlan_eth_header));
>         ((uint8_t *) ip)[2],                    \
>         ((uint8_t *) ip)[3]
>
> +/* Example:
> + *
> + * char *string = "1 33.44.55.66 2";
> + * ovs_be32 ip;
> + * int a, b;
> + *
> + * if (sscanf(string, "%d"IP_SCAN_FMT"%d",
> + *     &a, IP_SCAN_ARGS(&ip), &b) == 1 + IP_SCAN_COUNT + 1) {
> + *     ...
> + * }
> + */
> +#define IP_SCAN_FMT "%"SCNu8".%"SCNu8".%"SCNu8".%"SCNu8
> +#define IP_SCAN_ARGS(ip)                                    \
> +        ((void) (ovs_be32) *(ip), &((uint8_t *) ip)[0]),    \
> +        &((uint8_t *) ip)[1],                               \
> +        &((uint8_t *) ip)[2],                               \
> +        &((uint8_t *) ip)[3]
> +#define IP_SCAN_COUNT 4
> +
>  /* Returns true if 'netmask' is a CIDR netmask, that is, if it consists of N
>  * high-order 1-bits and 32-N low-order 0-bits. */
>  static inline bool
> @@ -366,6 +385,20 @@ struct arp_eth_header {
>  } __attribute__((packed));
>  BUILD_ASSERT_DECL(ARP_ETH_HEADER_LEN == sizeof(struct arp_eth_header));
>
> +/* Example:
> + *
> + * char *string = "1 ::1 2";
> + * char ipv6_s[IPV6_SCAN_LEN + 1];
> + * struct in6_addr ipv6;
> + *
> + * if (sscanf(string, "%d"IPV6_SCAN_FMT"%d", &a, ipv6_s, &b) == 3
> + *     && inet_pton(AF_INET6, ipv6_s, &ipv6) == 1) {
> + *     ...
> + * }
> + */
> +#define IPV6_SCAN_FMT "%46[0123456789abcdefABCDEF:.]"
> +#define IPV6_SCAN_LEN 46
> +
>  extern const struct in6_addr in6addr_exact;
>  #define IN6ADDR_EXACT_INIT { { { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, \
>                                  0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff } } }
> diff --git a/tests/automake.mk b/tests/automake.mk
> index 33307cc..eb6351f 100644
> --- a/tests/automake.mk
> +++ b/tests/automake.mk
> @@ -15,6 +15,7 @@ TESTSUITE_AT = \
>        tests/daemon-py.at \
>        tests/ofp-print.at \
>        tests/ovs-ofctl.at \
> +       tests/odp.at \
>        tests/multipath.at \
>        tests/autopath.at \
>        tests/vconn.at \
> @@ -80,6 +81,7 @@ lcov_wrappers = \
>        tests/lcov/test-list \
>        tests/lcov/test-lockfile \
>        tests/lcov/test-multipath \
> +       tests/lcov/test-odp \
>        tests/lcov/test-ovsdb \
>        tests/lcov/test-packets \
>        tests/lcov/test-random \
> @@ -133,6 +135,7 @@ valgrind_wrappers = \
>        tests/valgrind/test-list \
>        tests/valgrind/test-lockfile \
>        tests/valgrind/test-multipath \
> +       tests/valgrind/test-odp \
>        tests/valgrind/test-openflowd \
>        tests/valgrind/test-ovsdb \
>        tests/valgrind/test-packets \
> @@ -261,6 +264,10 @@ noinst_PROGRAMS += tests/test-unix-socket
>  tests_test_unix_socket_SOURCES = tests/test-unix-socket.c
>  tests_test_unix_socket_LDADD = lib/libopenvswitch.a
>
> +noinst_PROGRAMS += tests/test-odp
> +tests_test_odp_SOURCES = tests/test-odp.c
> +tests_test_odp_LDADD = lib/libopenvswitch.a
> +
>  noinst_PROGRAMS += tests/test-ovsdb
>  tests_test_ovsdb_SOURCES = \
>        tests/test-ovsdb.c \
> diff --git a/tests/odp.at b/tests/odp.at
> new file mode 100644
> index 0000000..53eb593
> --- /dev/null
> +++ b/tests/odp.at
> @@ -0,0 +1,40 @@
> +AT_SETUP([ODP parsing and formatting - valid forms])
> +AT_DATA([odp-base.txt], [dnl
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x1234)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x0800),ipv4(src=35.8.2.41,dst=172.16.0.20,proto=5,tos=128)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x0800),ipv4(src=35.8.2.41,dst=172.16.0.20,proto=6,tos=0),tcp(src=80,dst=8080)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x0800),ipv4(src=35.8.2.41,dst=172.16.0.20,proto=17,tos=0),udp(src=81,dst=6632)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x0800),ipv4(src=35.8.2.41,dst=172.16.0.20,proto=1,tos=0),icmp(type=1,code=2)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=10,tos=112)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=6,tos=0),tcp(src=80,dst=8080)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=17,tos=0),udp(src=6630,dst=22)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=58,tos=0),icmpv6(type=1,code=2)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=58,tos=0),icmpv6(type=135,code=0),nd(target=::3)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=58,tos=0),icmpv6(type=135,code=0),nd(target=::3,sll=00:05:06:07:08:09)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=58,tos=0),icmpv6(type=136,code=0),nd(target=::3,tll=00:0a:0b:0c:0d:0e)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x86dd),ipv6(src=::1,dst=::2,proto=58,tos=0),icmpv6(type=136,code=0),nd(target=::3,sll=00:05:06:07:08:09,tll=00:0a:0b:0c:0d:0e)
> +in_port(1),eth(src=00:01:02:03:04:05,dst=10:11:12:13:14:15),eth_type(0x0806),arp(sip=1.2.3.4,tip=5.6.7.8,op=1,sha=00:0f:10:11:12:13,tha=00:14:15:16:17:18)
> +])
> +
> +(echo '# Valid forms without tun_id or VLAN header.'
> + cat odp-base.txt
> +
> + echo
> + echo '# Valid forms with tun_id header.'
> + sed 's/^/tun_id(0x7f10354),/' odp-base.txt
> +
> + echo
> + echo '# Valid forms with VLAN header.'
> + sed 's/eth([[^)]]*)/&,vlan(vid=99,pcp=7)/' odp-base.txt
> +
> + echo
> + echo '# Valid forms with tun_id and VLAN headers.'
> + sed 's/^/tun_id(0xfedcba9876543210),/
> +s/eth([[^)]]*)/&,vlan(vid=99,pcp=7)/' odp-base.txt) > odp.txt
> +AT_CAPTURE_FILE([odp.txt])
> +AT_CHECK_UNQUOTED([test-odp < odp.txt], [0], [`cat odp.txt`
> +])
> +AT_CLEANUP
> +
> +dnl We could add a test for invalid forms, but that's less important.
> diff --git a/tests/test-odp.c b/tests/test-odp.c
> new file mode 100644
> index 0000000..9db27bf
> --- /dev/null
> +++ b/tests/test-odp.c
> @@ -0,0 +1,85 @@
> +/*
> + * Copyright (c) 2011 Nicira Networks.
> + *
> + * Licensed under the Apache License, Version 2.0 (the "License");
> + * you may not use this file except in compliance with the License.
> + * You may obtain a copy of the License at:
> + *
> + *     http://www.apache.org/licenses/LICENSE-2.0
> + *
> + * Unless required by applicable law or agreed to in writing, software
> + * distributed under the License is distributed on an "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
> + * See the License for the specific language governing permissions and
> + * limitations under the License.
> + */
> +
> +#include <config.h>
> +
> +#include <stdio.h>
> +
> +#include "dynamic-string.h"
> +#include "flow.h"
> +#include "odp-util.h"
> +#include "ofpbuf.h"
> +
> +int
> +main(void)
> +{
> +    struct ds in;
> +
> +    ds_init(&in);
> +    while (!ds_get_line(&in, stdin)) {
> +        struct ofpbuf odp_key;
> +        struct flow flow;
> +        struct ds out;
> +        int error;
> +        char *s;
> +
> +        /* Delete comments, skip blank lines. */
> +        s = ds_cstr(&in);
> +        if (*s == '#') {
> +            puts(s);
> +            continue;
> +        }
> +        if (strchr(s, '#')) {
> +            *strchr(s, '#') = '\0';
> +        }
> +        if (s[strspn(s, " ")] == '\0') {
> +            putchar('\n');
> +            continue;
> +        }
> +
> +        /* Convert string to ODP key. */
> +        ofpbuf_init(&odp_key, 0);
> +        error = odp_flow_key_from_string(ds_cstr(&in), &odp_key);
> +        if (error) {
> +            printf("odp_flow_key_from_string: error\n");
> +            goto next;
> +        }
> +
> +        /* Convert odp_key to flow. */
> +        error = odp_flow_key_to_flow(odp_key.data, odp_key.size, &flow);
> +        if (error) {
> +            printf("odp_flow_key_to_flow: error\n");
> +            goto next;
> +        }
> +
> +        /* Convert cls_rule back to odp_key. */
> +        ofpbuf_uninit(&odp_key);
> +        ofpbuf_init(&odp_key, 0);
> +        odp_flow_key_from_flow(&odp_key, &flow);
> +
> +        /* Convert odp_key to string. */
> +        ds_init(&out);
> +        odp_flow_key_format(odp_key.data, odp_key.size, &out);
> +        puts(ds_cstr(&out));
> +        ds_destroy(&out);
> +
> +    next:
> +        ofpbuf_uninit(&odp_key);
> +    }
> +    ds_destroy(&in);
> +
> +    return 0;
> +}
> diff --git a/tests/testsuite.at b/tests/testsuite.at
> index 6ec77f8..c22ece7 100644
> --- a/tests/testsuite.at
> +++ b/tests/testsuite.at
> @@ -46,6 +46,7 @@ m4_include([tests/daemon.at])
>  m4_include([tests/daemon-py.at])
>  m4_include([tests/ofp-print.at])
>  m4_include([tests/ovs-ofctl.at])
> +m4_include([tests/odp.at])
>  m4_include([tests/multipath.at])
>  m4_include([tests/autopath.at])
>  m4_include([tests/vconn.at])
> --
> 1.7.4.4
>
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>
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