diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-13 10:51:48 +0900 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-13 10:51:48 +0900 |
commit | 98260daa184c4a171834463cf85ab3a2c509d983 (patch) | |
tree | 318c3bfff9edef4da84a69895a3ac2aa39b8256a /net/core | |
parent | e225ca27057e70e7cbb14ae4c1e5f758973af645 (diff) | |
parent | dabdaf0caa3af520dbc1df87b2fb4e77224037bd (diff) | |
download | linux-98260daa184c4a171834463cf85ab3a2c509d983.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking updates from David Miller:
1) Alexey Kuznetsov noticed we routed TCP resets improperly in the
assymetric routing case, fix this by reverting a change that made us
use the incoming interface in the outgoing route key when we didn't
have a socket context to work with.
2) TCP sysctl kernel memory leakage to userspace fix from Alan Cox.
3) Move UAPI bits from David Howells, WIMAX and CAN this time.
4) Fix TX stalls in e1000e wrt. Byte Queue Limits, from Hiroaki
SHIMODA, Denys Fedoryshchenko, and Jesse Brandeburg.
5) Fix IPV6 crashes in packet generator module, from Amerigo Wang.
6) Tidies and fixes in the new VXLAN driver from Stephen Hemminger.
7) Bridge IP options parse doesn't check first if SKB header has at
least an IP header's worth of content present. Fix from Sarveshwar
Bandi.
8) The kernel now generates compound pages on transmit and the Xen
netback drivers needs some adjustments in order to handle this. Fix
from Ian Campbell.
9) Turn off ASPM in JME driver, from Kevin Bardon and Matthew Garrett.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
mcs7830: Fix link state detection
net: add doc for in4_pton()
net: add doc for in6_pton()
vti: fix sparse bit endian warnings
tcp: resets are misrouted
usbnet: Support devices reporting idleness
Add CDC-ACM support for the CX93010-2x UCMxx USB Modem
net/ethernet/jme: disable ASPM
tcp: sysctl interface leaks 16 bytes of kernel memory
kaweth: print correct debug ptr
e1000e: Change wthresh to 1 to avoid possible Tx stalls
ipv4: fix route mark sparse warning
xen: netback: handle compound page fragments on transmit.
bridge: Pull ip header into skb->data before looking into ip header.
isdn: fix a wrapping bug in isdn_ppp_ioctl()
vxlan: fix oops when give unknown ifindex
vxlan: fix receive checksum handling
vxlan: add additional headroom
vxlan: allow configuring port range
vxlan: associate with tunnel socket on transmit
...
Diffstat (limited to 'net/core')
-rw-r--r-- | net/core/pktgen.c | 146 | ||||
-rw-r--r-- | net/core/utils.c | 24 |
2 files changed, 53 insertions, 117 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 148e73d2c451..d1dc14c2aac4 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -248,8 +248,8 @@ struct pktgen_dev { int removal_mark; /* non-zero => the device is marked for * removal by worker thread */ - int min_pkt_size; /* = ETH_ZLEN; */ - int max_pkt_size; /* = ETH_ZLEN; */ + int min_pkt_size; + int max_pkt_size; int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ int nfrags; struct page *page; @@ -449,8 +449,6 @@ static void pktgen_stop_all_threads_ifs(void); static void pktgen_stop(struct pktgen_thread *t); static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); -static unsigned int scan_ip6(const char *s, char ip[16]); - /* Module parameters, defaults. */ static int pg_count_d __read_mostly = 1000; static int pg_delay_d __read_mostly; @@ -702,8 +700,8 @@ static int pktgen_if_show(struct seq_file *seq, void *v) &pkt_dev->cur_in6_saddr, &pkt_dev->cur_in6_daddr); } else - seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", - pkt_dev->cur_saddr, pkt_dev->cur_daddr); + seq_printf(seq, " cur_saddr: %pI4 cur_daddr: %pI4\n", + &pkt_dev->cur_saddr, &pkt_dev->cur_daddr); seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); @@ -1299,7 +1297,7 @@ static ssize_t pktgen_if_write(struct file *file, return -EFAULT; buf[len] = 0; - scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); + in6_pton(buf, -1, pkt_dev->in6_daddr.s6_addr, -1, NULL); snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->in6_daddr); pkt_dev->cur_in6_daddr = pkt_dev->in6_daddr; @@ -1322,7 +1320,7 @@ static ssize_t pktgen_if_write(struct file *file, return -EFAULT; buf[len] = 0; - scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); + in6_pton(buf, -1, pkt_dev->min_in6_daddr.s6_addr, -1, NULL); snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->min_in6_daddr); pkt_dev->cur_in6_daddr = pkt_dev->min_in6_daddr; @@ -1344,7 +1342,7 @@ static ssize_t pktgen_if_write(struct file *file, return -EFAULT; buf[len] = 0; - scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); + in6_pton(buf, -1, pkt_dev->max_in6_daddr.s6_addr, -1, NULL); snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->max_in6_daddr); if (debug) @@ -1365,7 +1363,7 @@ static ssize_t pktgen_if_write(struct file *file, return -EFAULT; buf[len] = 0; - scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); + in6_pton(buf, -1, pkt_dev->in6_saddr.s6_addr, -1, NULL); snprintf(buf, sizeof(buf), "%pI6c", &pkt_dev->in6_saddr); pkt_dev->cur_in6_saddr = pkt_dev->in6_saddr; @@ -2036,19 +2034,17 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) /* Set up Dest MAC */ memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); - /* Set up pkt size */ - pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; - if (pkt_dev->flags & F_IPV6) { - /* - * Skip this automatic address setting until locks or functions - * gets exported - */ - -#ifdef NOTNOW int i, set = 0, err = 1; struct inet6_dev *idev; + if (pkt_dev->min_pkt_size == 0) { + pkt_dev->min_pkt_size = 14 + sizeof(struct ipv6hdr) + + sizeof(struct udphdr) + + sizeof(struct pktgen_hdr) + + pkt_dev->pkt_overhead; + } + for (i = 0; i < IN6_ADDR_HSIZE; i++) if (pkt_dev->cur_in6_saddr.s6_addr[i]) { set = 1; @@ -2069,9 +2065,8 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) struct inet6_ifaddr *ifp; read_lock_bh(&idev->lock); - for (ifp = idev->addr_list; ifp; - ifp = ifp->if_next) { - if (ifp->scope == IFA_LINK && + list_for_each_entry(ifp, &idev->addr_list, if_list) { + if ((ifp->scope & IFA_LINK) && !(ifp->flags & IFA_F_TENTATIVE)) { pkt_dev->cur_in6_saddr = ifp->addr; err = 0; @@ -2084,8 +2079,14 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) if (err) pr_err("ERROR: IPv6 link address not available\n"); } -#endif } else { + if (pkt_dev->min_pkt_size == 0) { + pkt_dev->min_pkt_size = 14 + sizeof(struct iphdr) + + sizeof(struct udphdr) + + sizeof(struct pktgen_hdr) + + pkt_dev->pkt_overhead; + } + pkt_dev->saddr_min = 0; pkt_dev->saddr_max = 0; if (strlen(pkt_dev->src_min) == 0) { @@ -2111,6 +2112,10 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); } /* Initialize current values. */ + pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; + if (pkt_dev->min_pkt_size > pkt_dev->max_pkt_size) + pkt_dev->max_pkt_size = pkt_dev->min_pkt_size; + pkt_dev->cur_dst_mac_offset = 0; pkt_dev->cur_src_mac_offset = 0; pkt_dev->cur_saddr = pkt_dev->saddr_min; @@ -2758,97 +2763,6 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev, return skb; } -/* - * scan_ip6, fmt_ip taken from dietlibc-0.21 - * Author Felix von Leitner <felix-dietlibc@fefe.de> - * - * Slightly modified for kernel. - * Should be candidate for net/ipv4/utils.c - * --ro - */ - -static unsigned int scan_ip6(const char *s, char ip[16]) -{ - unsigned int i; - unsigned int len = 0; - unsigned long u; - char suffix[16]; - unsigned int prefixlen = 0; - unsigned int suffixlen = 0; - __be32 tmp; - char *pos; - - for (i = 0; i < 16; i++) - ip[i] = 0; - - for (;;) { - if (*s == ':') { - len++; - if (s[1] == ':') { /* Found "::", skip to part 2 */ - s += 2; - len++; - break; - } - s++; - } - - u = simple_strtoul(s, &pos, 16); - i = pos - s; - if (!i) - return 0; - if (prefixlen == 12 && s[i] == '.') { - - /* the last 4 bytes may be written as IPv4 address */ - - tmp = in_aton(s); - memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); - return i + len; - } - ip[prefixlen++] = (u >> 8); - ip[prefixlen++] = (u & 255); - s += i; - len += i; - if (prefixlen == 16) - return len; - } - -/* part 2, after "::" */ - for (;;) { - if (*s == ':') { - if (suffixlen == 0) - break; - s++; - len++; - } else if (suffixlen != 0) - break; - - u = simple_strtol(s, &pos, 16); - i = pos - s; - if (!i) { - if (*s) - len--; - break; - } - if (suffixlen + prefixlen <= 12 && s[i] == '.') { - tmp = in_aton(s); - memcpy((struct in_addr *)(suffix + suffixlen), &tmp, - sizeof(tmp)); - suffixlen += 4; - len += strlen(s); - break; - } - suffix[suffixlen++] = (u >> 8); - suffix[suffixlen++] = (u & 255); - s += i; - len += i; - if (prefixlen + suffixlen == 16) - break; - } - for (i = 0; i < suffixlen; i++) - ip[16 - suffixlen + i] = suffix[i]; - return len; -} - static struct sk_buff *fill_packet_ipv6(struct net_device *odev, struct pktgen_dev *pkt_dev) { @@ -2927,7 +2841,7 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev, sizeof(struct ipv6hdr) - sizeof(struct udphdr) - pkt_dev->pkt_overhead; - if (datalen < sizeof(struct pktgen_hdr)) { + if (datalen < 0 || datalen < sizeof(struct pktgen_hdr)) { datalen = sizeof(struct pktgen_hdr); net_info_ratelimited("increased datalen to %d\n", datalen); } @@ -3548,8 +3462,6 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) } pkt_dev->removal_mark = 0; - pkt_dev->min_pkt_size = ETH_ZLEN; - pkt_dev->max_pkt_size = ETH_ZLEN; pkt_dev->nfrags = 0; pkt_dev->delay = pg_delay_d; pkt_dev->count = pg_count_d; diff --git a/net/core/utils.c b/net/core/utils.c index f5613d569c23..e3487e461939 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -107,6 +107,18 @@ static inline int xdigit2bin(char c, int delim) return IN6PTON_UNKNOWN; } +/** + * in4_pton - convert an IPv4 address from literal to binary representation + * @src: the start of the IPv4 address string + * @srclen: the length of the string, -1 means strlen(src) + * @dst: the binary (u8[4] array) representation of the IPv4 address + * @delim: the delimiter of the IPv4 address in @src, -1 means no delimiter + * @end: A pointer to the end of the parsed string will be placed here + * + * Return one on success, return zero when any error occurs + * and @end will point to the end of the parsed string. + * + */ int in4_pton(const char *src, int srclen, u8 *dst, int delim, const char **end) @@ -161,6 +173,18 @@ out: } EXPORT_SYMBOL(in4_pton); +/** + * in6_pton - convert an IPv6 address from literal to binary representation + * @src: the start of the IPv6 address string + * @srclen: the length of the string, -1 means strlen(src) + * @dst: the binary (u8[16] array) representation of the IPv6 address + * @delim: the delimiter of the IPv6 address in @src, -1 means no delimiter + * @end: A pointer to the end of the parsed string will be placed here + * + * Return one on success, return zero when any error occurs + * and @end will point to the end of the parsed string. + * + */ int in6_pton(const char *src, int srclen, u8 *dst, int delim, const char **end) |