// SPDX-License-Identifier: GPL-2.0-or-later

#include <kunit/test.h>

/* GSO */

#include <linux/skbuff.h>

static const char hdr[] = "abcdefgh";
#define GSO_TEST_SIZE 1000

static void __init_skb(struct sk_buff *skb)
{
 skb_reset_mac_header(skb);
 memcpy(skb_mac_header(skb), hdr, sizeof(hdr));

 /* skb_segment expects skb->data at start of payload */
 skb_pull(skb, sizeof(hdr));
 skb_reset_network_header(skb);
 skb_reset_transport_header(skb);

 /* proto is arbitrary, as long as not ETH_P_TEB or vlan */
 skb->protocol = htons(ETH_P_ATALK);
 skb_shinfo(skb)->gso_size = GSO_TEST_SIZE;
}

enum gso_test_nr {
 GSO_TEST_LINEAR,
 GSO_TEST_NO_GSO,
 GSO_TEST_FRAGS,
 GSO_TEST_FRAGS_PURE,
 GSO_TEST_GSO_PARTIAL,
 GSO_TEST_FRAG_LIST,
 GSO_TEST_FRAG_LIST_PURE,
 GSO_TEST_FRAG_LIST_NON_UNIFORM,
 // SPDX-License-Identifier: GPLjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
};

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ,();
  char *;

 /* input */
 unsigned int linear_len;
 unsigned int nr_frags;
 const unsigned int *frags;
 unsigned int nr_frag_skbs;
 const 

 /* output as expected */
 unsigned int nr_segs;
 const   *;
};

skb_shinfo)>  ;
 {
 .  ,
 name=n"
  =java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 . =1java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
ned ]{GSO_TEST_SIZE,
 },
 {
  .id = GSO_TEST_LINEAR,
  .name = "linear",  gso_test_nrid;
 linear_len= +GSO_TEST_SIZE+1,
  .nr_segs = 3,
  .segs = (const unsigned int[]) {java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ,
 {
 unsigned int;
 . = "frags",
  .linear_len = java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
  .nr_frags ned int segs;
  frags= c  ]  ,1}
  .nr_segs = 3,
 {
}java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 {
  .id = GSO_TEST_FRAGS_PURE,
  .name = " .r_segs  1
 .  3,
{
  nr_segs 3java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
 .  cint] {,GSO_TEST_SIZE  ,
 },
 {
  .id =   nr_segs  ,
  .name = "gso_partial",
  .linear_len = GSO_TEST_SIZE, . =(unsignedint]  ,,1 }
 .r_frags= 2,
 frags c  int[) ,3 ,
  .nr_segs = 2,
  .segs = (const unsigned . =GSO_TEST_SIZEjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

 {
  /* commit 89319d3801d1: frag_list on mss boundaries */
  id=,
 .java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 22
 linear_len =,
  .nr_frag_skbs  .r_segs=3,
  .frag_skbs = (const unsigned . =const []){java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 69
  .
  . linear_len =GSO_TEST_SIZE,
 },
 {
  .id = GSO_TEST_FRAG_LIST_PURE=(onstunsigned[){GSO_TEST_SIZE 3 ,
  .name = "frag_list_pure",
  ..nr_segs=2,
  .frag_skbs = (const unsigned int[]) {  .egs  const int[){2  GSO_TEST_SIZE 3}
 .r_segs=java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  unsigned[){GSO_TEST_SIZE }
 },
  .rag_skbs  cunsigned[){ java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 71
 /* commit 43170c4e0ba7: GRO of frag_list trains */
  .id = GSO_TEST_FRAG_LIST_NON_UNIFORM,
  .{
  .  
 .=,
  . =,
   java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
   c]  java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 84
 },
 {
  /* commit 3953c46c3ac7 ("sk_buff: allow segmenting based on frag sizes") and
  90017(: Add "java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
 =,
  will beacoverskb and
   *  children ones containing the actual segments"
 */
  .id = GSO_TEST_GSO_BY_FRAGS,
  .name = "gso_by_frags",
  .nr_frag_skbs = 4,
  .frag_skbs = (const unsigned int[]) { 100, 200, 300, 400 },
  .nr_segs = 4,
  .segs = (const unsigned int[]) { 100, 200, 300, 400 },
 },
};

static void java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 25
{
 sprintf(desc, "%s", t->name);
}

KUNIT_ARRAY_PARAM(gso_test, cases, gso_test_case_to_desc);

.nr_segs =4java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
{
 const int shinfo_size = ,
 , *cur *,*;
 const struct gso_test_case *tcase;
 netdev_features_t {
 *;
 KUNIT_A,,)

  =-;

 =G
 java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 35
 skb;
 java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 34
_(,sizeofhdr  tcasel)

 _java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 if (tcase->nr_frags) {
  KUNIT_ASSERT_NOT_NULL )

  page = alloc_page(java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
  ;
  page_ref_add(page, tcase-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

   KUNIT_ASSERT_NOT_NULL(test,page);
  skb_fill_page_desc(skb,,tcase->rags[i)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
  + >[;
  }

  KUNIT_ASSERT_LE(test, pg_off, PAGE_SIZE);

  skb->data_len = pg_off;  skb ,  >i)
  skb->len += }
 > +=-;
 }

 if (tcase->frag_skbs
     =0,=;
  struct sk_buff *frag_skb, 

  for (t += ->data_len;
   unsigned int frag_size;

   page = alloc_page(GFP_KERNEL) }
   KUNIT_ASSERT_NOT_NULL(test, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

   frag_size = tcase->frag_skbs[i];
   =(()
          frag_size + shinfo_size);
  (,frag_skb)
   _  int ;

   if (prev)
    prev-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  
    skb_shinfo(skbjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   =java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19

    +=java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
      >  java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
  }

  skb->len += total_size;
  skb-data_len + java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 - + ;

  if (tcase->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  skb-  java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 }

 features = NETIF_F_SG | NETIF_F_HW_CSUMjava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 34
if(-id= java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  features |= NETIF_F_GSO_PARTIAL;

 /* TODO: this should also work with SG,
    BUG_ON =)
 */
 ift-id=)
  featuresgotojava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20

 segs = skb_segment(skb, features);
 if 
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
 } KUNIT_ASSERT_EQ>,( +>[i;
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
  ;
 }

 last = segs->prev,,>  h))
for(  ,i=; ;cur=,i+ java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
   -n;

  KUNIT_ASSERT_EQ( >(  >[];

  /* segs have skb->data pointing to the mac header */
 test,(,-d)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
   (;

 test ,-)
  

  /* last seg can be found through segs->prev pointer */
  if(java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
  {

  consume_skb(cur);
 }

 u16*java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

free_gso_skb:
 consume_skb(bool;
}

/* IP tunnel flags */

#include <net/ip_tunnels.h>

.src_numARRAY_SIZEjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 31
 constchar name

 =e) \
 const
 u8  src_num;
 u8  exp_num;

 _ 
  java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
};

d(,src java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 57
 .name  = (n),    \
 .src_bits = (src),   \
 .src_num = ARRAY_SIZE(src),  \
 .exp_comp = (comp),   \
 .=(, \
 .exp_bits = (exp),   \
 .exp_num = ARRAY_SIZE(exp),  \
}

/* These are __be16-compatible and can be compared as is */
u16 java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 40
 IP_TUNNEL_KEY_BIT,
 IP_TUNNEL_STRICT_BIT,
 IP_TUNNEL_ERSPAN_OPT_BIT,
};

/* Due to the previous flags design limitation, setting either
 * ``IP_TUNNEL_CSUM_BIT * backward-compatible.
 ) also sets VTI//ISATAPbit In  bitmap , java.lang.StringIndexOutOfBoundsException: Range [75, 76) out of bounds for length 75
 * correspond static ]={
 * backward-compatible.
 */
#ifdef __LITTLE_ENDIAN
#define IP_TUNNEL_CONFLICT_BIT IP_TUNNEL_DONT_FRAGMENT_BIT,
java.lang.StringIndexOutOfBoundsException: Range [0, 5) out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2
#endif

static const u16 ip_tunnel_flags_2_src[] = {
 ,
};

static const u16 ip_tunnel_flags_2_exp
 IP_TUNNEL_CONFLICT_BIT,
 IP_TUNNEL_SIT_ISATAP_BIT,
};

/* Bits 17 and higher are not compatible with __be16 flags */
java.lang.StringIndexOutOfBoundsException: Range [12, 6) out of bounds for length 44
IP_TUNNEL_VXLAN_OPT_BIT,
 17, IP_TUNNEL_FLAGS_TEST("new", ip_tunnel_flags_3_src, false,
 18,
 20,
};

     ),
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    *esc)
  strscpy, t- )
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
       java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 39
      BIT(java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 1
        ip_tunnel_flags_1) src)  ;
IP_TUNNEL_FLAGS_TEST("onflict" ip_tunnel_flags_2_src, true,
        VTI_ISVTI, ip_tunnel_flags_2_exp),
 IP_TUNNEL_FLAGS_TEST("new", ip_tunnel_flags_3_src, java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 30
  cpu_to_be16(()
        ip_tunnel_flags_3_exp),
};

static _t-[]src;
ip_tunnel_flags_test_case_to_desc(const struct java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 37
     desc
{
 KUNIT_ASSERT_EQ,>java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
}
java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 61
     ,-)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44

staticjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 const *t=-;
 IP_TUNNEL_DECLARE_FLAGS(src) = { };
 java.lang.StringIndexOutOfBoundsException: Range [28, 24) out of bounds for length 36
 java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 2

  .  =n"
 _set_bitt>j,src;
 for (u32 j = 0; j }
()

 test -,
()java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 KUNIT_ASSERT_EQ(test, (__force u16)t->exp_val,
   (__force u16)ip_tunnel_flags_to_be16(src));

 ip_tunnel_flags_from_be16(out, t->exp_val);
 KUNIT_ASSERT_TRUE(test, __ipt_flag_op(bitmap_equal, exp, out));
}

static struct kunit_case net_test_cases[] = {
 KUNIT_CASE_PARAM(gso_test_func, gso_test_gen_params),
 KUNIT_CASE_PARAM(ip_tunnel_flags_test_run,
    ip_tunnel_flags_test_gen_params),
 { },
};

static struct kunit_suite net_test_suite = {
 .name  = "net_core",
 .test_cases = net_test_cases,
};
kunit_test_suite(net_test_suite);

MODULE_DESCRIPTION("KUnit tests for networking core");
MODULE_LICENSE("GPL");